Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| pentacyclic triterpenes with selective bioactivity from sebastiania adenophora leaves, euphorbiaceae. | six known pentacyclic triterpenes possessing oleanane, lupane, or taraxerane-type skeletons were isolated from the leaves of sebastiania adenophora (euphorbiaceae) and are reported for the first time in this species. these compounds include 3-epi-beta-amyrin, beta-amyrinone, 3-epi-lupeol, lupenone, taraxerol, and taraxerone. structures were elucidated by comparison with literature data. the bioactivities of these compounds were tested on the root growth of amaranthus hypochondriacus, amaranth (a ... | 2007 | 17151909 |
| oxalate in grain amaranth. | grain amaranth (amaranthus spp.) is a widely adaptable c4 pseudo-cereal crop that has interesting nutritional characteristics including high protein and calcium concentrations and a lack of gluten. to date, no antinutrient has been found at problematic levels in grain amaranth; however, oxalate has not been thoroughly studied. dietary oxalate is a potential risk factor for kidney stone development, and its presence in food lowers calcium and magnesium availability. oxalate concentration and form ... | 2007 | 17511467 |
| isolation and biochemical characterization of an antifungal peptide from amaranthus hypochondriacus seeds. | an antifungal peptide, ay-amp, was isolated from amaranthus hypochondriacus seeds by acidic extraction and then purified by reverse-phase high-pressure liquid chromatography. the molecular mass of this peptide, as determined by mass spectrometry, is 3184 da. the peptide belongs to the superfamily of chitin-binding proteins, containing a single cysteine/glycine-rich chitin-binding domain, and it was found that ay-amp degrades chitin. ay-amp inhibits the growth, at very low doses, of different pat ... | 2007 | 18031007 |
| 3-o-acetyl-narcissidine, a bioactive alkaloid from hippeastrum puniceum lam. (amaryllidaceae). | in the context of the study on plant defensive compounds we have isolated the main alkaloid from hippeastrum puniceum (amaryllidaceae), 3-o-acetyl-narcissidine (1), and its biological activities tested against two divergent insect species and several plant species. 1 was isolated from the bioactive alkaloidal fraction of h. puniceum. its chemical structure was established by spectroscopic analysis. the biological activity tests showed that 1 is an antifeedant against the polyphagous insect spodo ... | 2008 | 19040099 |
| mature amaranthus hypochondriacus seeds contain non-processed 11s precursors. | amaranth is a dicotyledonous plant whose major seed storage proteins are globulins and glutelins. an unique feature of amaranth seeds is the presence of a fraction named albumin-2, that is extractable with water only after an exhaustive extraction of globulins and albumin-1. in this work, we tested the hypothesis that albumin-2 fraction could be constituted by a non-processed 11s globulin (proglobulin). to this end, the gene encoding the amaranth 11s subunit was cloned and expressed in escherich ... | 2008 | 17714748 |
| interaction of polyethylene glycol-6000 with c4 phosphoenolpyruvate carboxylase in crude leaf extracts as well as in purified protein form from amaranthus hypochondriacus l.: evidence for oligomerization of pepc in vitro and in vivo. | the interaction of phosphoenolpyruvate carboxylase (pepc) with a compatible solute, peg-6000, was examined using crude leaf extracts as well as the purified protein from leaves of amaranthus hypochondriacus, a nad-malic enzyme type c4 plant. the inclusion in the assay medium of peg-6000 stimulated the activity of purified pepc by about 2.5-fold over control. the addition of peg during both extraction and assay, stimulated pepc activity by almost 5.0 fold in crude extracts. the stimulation by peg ... | 2008 | 23572890 |
| phytotoxic activity and conformational analysis of thymol analogs from hofmeisteria schaffneri. | bioassay-guided fractionation of two phytotoxic extracts (a ch(2)cl(2)-meoh (1:1) and an aqueous) prepared from the aerial parts of hofmeisteria schaffneri led to isolation of thymol analogs 3-5, along with seven known compounds, 1, 2 and 6-10. compounds 3-5 were identified by spectroscopic methods as 1,4-bis(2'-hydroxy-4'-methylphenyl)butane-1,4-dione (3), 2-isopropyl-5-methylphenyl (2z)-2-methylbut-2-enoate (4) and 2-hydroxy-2-(2-hydroxy-4-methylphenyl)propane-1,3-diyl (2z,2'z)bis(2-methylbut- ... | 2008 | 18328513 |
| bioactive peptides in amaranth (amaranthus hypochondriacus) seed. | amaranth seeds are rich in protein with a high nutritional value, but little is known about their bioactive compounds that could benefit health. the objectives of this research were to investigate the presence, characterization, and the anticarcinogenic properties of the peptide lunasin in amaranth seeds. furthermore, to predict and identify other peptides in amaranth seed with potential biological activities. elisa showed an average concentration of 11.1 microg lunasin equivalent/g total extrac ... | 2008 | 18211015 |
| mutual stimulation of temperature and light effects on c(4) phosphoenolpyruvate carboxylase in leaf discs and leaves of amaranthus hypochondriacus. | this article reports marked modulation of the activity and regulatory properties of phosphoenolpyruvate carboxylase (pepc) by temperature and light in leaf discs as well as leaves of amaranthus hypochondriacus. the activity of pepc increased by 1.7-fold at 45 degrees c over 25 degrees c. warm temperature also stimulated the photoactivation of pepc. the activation by light of pepc was 1.9-fold at 25 degrees c and increased to 2.2-fold at 45 degrees c. the sensitivity of pepc to its inhibitor mala ... | 2008 | 18022280 |
| transgenic approach to improve wheat (triticum aestivum l.) nutritional quality. | an amaranth (amaranthus hypochondriacus) albumin gene, encoding the 35-kda ama1 protein of the seed, with a high content of essential amino acids, was used in the biolistic transformation of bread wheat (triticum aestivum l.) variety cadenza. the transformation cassette carried the ama1 gene under the control of a powerful wheat endosperm-specific promoter (1bx17 hmw-gs). southern-blot analysis of t(1) lines confirmed the integration of the foreign gene, while rt-pcr and western-blot analyses of ... | 2009 | 19466426 |
| ace inhibitory tetrapeptides from amaranthus hypochondriacus 11s globulin. | amaranth seed is a valuable source of dietary protein with very high nutritional quality, and recently its potential as a nutraceutical has been proposed. the aim of this work was to provide experimental evidence for the presence of anti-hypertensive peptides in globulin 11s, one of the major constituents of the seed, by means of an in-silico based peptide library screening method. a three-dimensional model of globulin 11s was built, upon which anti-hypertensive peptides were mapped via a databa ... | 2009 | 19443002 |
| phytogrowth-inhibitory lactones derivatives of glaucolide b. | the sesquiterpene lactone glaucolide b (1), isolated from vernonia fruticulosa (asteraceae), was transformed into six lactones (2-7). the structures of the products were elucidated by spectroscopic analysis. a series of solutions of compounds 1-7, at 200 microm, were tested on the germination and on the root and shoot growth of the dicotyledons physalis ixocarpa and trifolium alexandrinum and of the monocotyledons lolium multiflorum and amaranthus hypochondriacus. lactone 5 exhibited clear selec ... | 2009 | 15666538 |
| fine structure characterization of amylopectins from grain amaranth starch. | the aim of this study was to determine the fine structure of amylopectin from grain amaranth. amaranthus amylopectin was hydrolyzed with alpha-amylase, and single clusters and a group of clusters (domain) were isolated by methanol precipitation. the domain and the clusters were treated with phosphorylase a and then beta-amylase to remove all external chains, whereby the internal structure was obtained. the phi,beta-limit dextrins were analyzed on sepharose cl 6b. the average dp (degree of polyme ... | 2009 | 19604502 |
| [the oil, fatty acid and squalene content of varieties of raw and processed amaranth grain]. | the oil, fatty acid and squalene content of varieties of raw and processed grain amaranth. six amaranth grain varieties were processed to yield a nixtamalized flour, one cooked in water, one expanded, a malted one and a laminate samples after a thermic treatment. the chemical values of the raw samples contained from 14.5% to 15.1% protein, 5.9 to 6.7% ether extract and from 2.3% to 3.2% ash on a dry weight basis. the flours from the different processes yield products with a fat content which var ... | 2009 | 19480349 |
| globulin-p and 11s-globulin from amaranthus hypochondriacus: are two isoforms of the 11s-globulin. | amaranth is an ancient crop with a high content of good quality proteins. globulins are some of the most abundant storage proteins of amaranth grain. they contain two fractions distinguishable according to their different solubility: the salt-soluble 7s and 11s-globulins and the globulin-p soluble in mild-alkaline, low-ionic-strength solutions. as part of the amaranth proteins characterization, in this work we investigated the structural characteristics responsible for the different physicochemi ... | 2009 | 19921410 |
| amaranth (amaranthus hypochondriacus) vicilin subunit structure. | the 7s-globulin fraction is a minor component of the amaranth storage proteins. the present work provides new information about this protein. the amaranth 7s-globulin or vicilin presented a sedimentation coefficient of 8.6 ± 0.6 s and was composed of main subunits of 66, 52, 38, and 16 kda. on the basis of mass spectrometry (ms) analysis of tryptic fragments, the 52, 38, and 16 kda subunits presented sequence homology with sesame vicilin, whereas the 66 kda subunit showed sequence similarity wit ... | 2010 | 21117690 |
| expression, purification and preliminary crystallization of amaranth 11s proglobulin seed storage protein from amaranthus hypochondriacus l. | 11s globulin is one of the major seed storage proteins in amaranth. recombinant protein was produced as up to approximately 80% of the total bacterial protein using escherichia coli rosetta-gami (de3) containing pet21d with amaranth 11s globulin cdna. the best expression condition was at 302 k for 20 h using lb medium containing 0.5 m nacl. the recombinant protein was easily separated from most of the escherichia coli proteins by precipitation with 0-40% ammonium sulfate solution. it formed aggr ... | 2010 | 20693668 |
| multielemental analysis and classification of amaranth seeds according to their botanical origin. | the characterization of amaranth seeds (amaranthus spp.) was developed for amaranthus hypochondriacus, amaranthus cruentus, and amaranthus dubius. the elemental concentrations were determined by inductively coupled plasma optic atomic spectroscopy. pattern recognition methods were used for the characterization of seed samples: nonsupervised methods included principal components analysis and cluster analysis; supervised methods were linear discriminant analysis and partial least squares discrimin ... | 2011 | 21797241 |
| antioxidant properties of amaranthus hypochondriacus seeds and their effect on the liver of alcohol-treated rats. | amaranth constitutes a valuable pseudocereal, due to its nutritional quality and its nutraceutical properties, which contribute to improve human health. this work evaluated the effect of a diet based on amaranthus hypochondriacus (ah) seed on oxidative stress and antioxidant status in the liver of rats sub-chronically exposed to ethanol. the seed extract was investigated for antioxidant capacity in vitro, showing an adequate content of total phenols and antioxidant activity elevated. for in vivo ... | 2011 | 21547507 |
| water stress induces up-regulation of dof1 and mif1 transcription factors and down-regulation of proteins involved in secondary metabolism in amaranth roots (amaranthus hypochondriacus l.). | roots are the primary sites of water stress perception in plants. the aim of this work was to study differential expression of proteins and transcripts in amaranth roots (amaranthus hypochondriacus l.) when the plants were grown under drought stress. changes in protein abundance within the roots were examined using two-dimensional electrophoresis and lc/esi-ms/ms, and the differential expression of transcripts was evaluated with suppression subtractive hybridisation (ssh). induction of drought s ... | 2011 | 21489098 |
| interplay of light and temperature during the in planta modulation of c4 phosphoenolpyruvate carboxylase from the leaves of amaranthus hypochondriacus l.: diurnal and seasonal effects manifested at molecular levels. | the interactive effects of light and temperature on c(4) phosphoenolpyruvate carboxylase (pepc) were examined both in vivo and in situ using the leaves of amaranthus hypochondriacus collected at different times during a day and in each month during the year. the maximum activity of pepc, least inhibition by malate, and highest activation by glucose-6-phosphate were at 15.00 h during a typical day, in all the months. this peak was preceded by maximum ambient light but coincided with high temperat ... | 2011 | 21045006 |
| transcriptomic analysis of grain amaranth (amaranthus hypochondriacus) using 454 pyrosequencing: comparison with a. tuberculatus, expression profiling in stems and in response to biotic and abiotic stress. | amaranthus hypochondriacus, a grain amaranth, is a c4 plant noted by its ability to tolerate stressful conditions and produce highly nutritious seeds. these possess an optimal amino acid balance and constitute a rich source of health-promoting peptides. although several recent studies, mostly involving subtractive hybridization strategies, have contributed to increase the relatively low number of grain amaranth expressed sequence tags (ests), transcriptomic information of this species remains li ... | 2011 | 21752295 |
| assessment of changes in photosystem ii structure and function as affected by water deficit in amaranthus hypochondriacus l. and amaranthus hybridus l. | the present study describes the behaviour of photosystem ii (psii) in amaranthus hypochondriacus and amaranthus hybridus under water stress conditions, assessed by the analyses of the polyphasic rise in chlorophyll a fluorescence (o-j-i-p). we determined the adaptive behaviour in relation to the regulation of the different functional and structural parameters of psii, which was a direct and rapid response due to changes in soil water status indicated by a decrease in leaf water potential and rel ... | 2011 | 21696974 |
| chemical composition, dietary fibre, tannins and minerals of grain amaranth genotypes. | the objective of this study was to determine the chemical composition of 28 white and coloured grain amaranth (amaranthus spp.) genotypes. neutral detergent fibre (ndf) concentration was greater while strach concentration was lower for coloured seeds genotypes than white seeds genotypes. total dietary fibre followed a similar trend to that observed for ndf. total tannin concentrations ranged between 20.7 and 0 g/kg with total and hydrolysed tannin concentrations being higher for white than for c ... | 2011 | 21599462 |
| physicochemical, functional and angiotensin converting enzyme inhibitory properties of amaranth (amaranthus hypochondriacus) 7s globulin. | amaranth 7s globulin is a minor globulin component and its impact on the properties of an amaranth protein ingredient depends on its proportion in the variety of amaranth being considered. some physicochemical, functional and angiotesin i-converting enzyme (ace) inhibitory properties of amaranth vicilin were studied in this work and compared with the 11s globulin. | 2012 | 21834100 |
| effect of fertilizers on cd uptake of amaranthus hypochondriacus, a high biomass, fast growing and easily cultivated potential cd hyperaccumulator. | in a greenhouse pot experiment, we assessed the phytoextraction potential for cd of three amaranth cultivars (amaranthus hypochondriacus l. cvs. k112, r104, and k472) and the effect of application of n, np, and npk fertilizer on cd uptake of the three cultivars from soil contaminated with 5 mg kg(-1) cd. all three amaranth cultivars had high levels of cd concentration in their tissues, which ranged from 95.1 to 179.1 mg kg(-1) in leaves, 58.9 to 95.4 mg kg(-1) in stems, and 62.4 to 107.2 mg kg(- ... | 2012 | 22567702 |
| utilization of super bac pools and fluidigm access array platform for high-throughput bac clone identification: proof of concept. | bacterial artificial chromosome (bac) libraries are critical for identifying full-length genomic sequences, correlating genetic and physical maps, and comparative genomics. here we describe the utilization of the fluidigm access array genotyping system in conjunction with kaspar genotyping technology to identify individual bac clones corresponding to specific single-nucleotide polymorphisms (snps) from an amplicon express seven-plate super pooled amaranthus hypochondriacus bac library. ninety-si ... | 2012 | 22910714 |
| the potential influence of plant-based feed supplements on sperm quantity and quality in livestock: a review. | the reproductive performance of male livestock is of economic importance, and improving semen quantity and quality, especially for artificial insemination, additionally helps to avoid the loss of valuable genotypes. the review focuses on the impact of oxidative stress on sperm production and quality in livestock, and the potential role of plant based anti-oxidants to control this impact. from scientific reports dealing with livestock, the paper compiles evidence on effective dietary measures aff ... | 2012 | 22575847 |
| free amino acid profiling in grain amaranth using lc-ms/ms. | reliable and reproducible techniques for identification and quantification of amino acids usually require derivatization. however, techniques such as lc-ms/ms may perhaps sideline the derivatization with significant accuracy. understanding the interaction between free amino acids and several physiological processes apparently requires that the pool be studied in the seed itself. data on free amino acid content of grain amaranth is very inadequate. the present analysis revealed a higher concentra ... | 2012 | 23442725 |
| rapid identification of amaranthus caudatus and amaranthus hypochondriacus by sequencing and pcr-rflp analysis of two starch synthase genes. | the objective of this study was to develop a pcr-rflp method to identity the cultivated species of grain amaranth based on variations in the sequences of their starch synthase genes. we sequenced the sssi and gbssi loci in 126 accessions of cultivated grain amaranth collected from diverse locations around the world. we aligned the gene sequences and searched for restriction enzyme cleavage sites specific to each species for use in the pcr-rflp analysis. our analyses indicated that ecori would re ... | 2012 | 22892013 |
| crystal structure of a major seed storage protein, 11s proglobulin, from amaranthus hypochondriacus: insight into its physico-chemical properties. | amaranth is a crop known for its high quality proteins. 11s globulin is one of the most abundant and important storage proteins of the amaranth grain. here, we report the crystal structure of amaranth 11s proglobulin at a final resolution of 2.28 å. it belonged to the space group p6(3) with cell dimensions a=b=96.6, c=75.0 å. it contains one asymmetric unit consisting of 372 residues and 100 water molecules. disordered regions in the model approximately correspond to the variable regions of the ... | 2012 | 22868164 |
| changes in the metabolome and histopathology of amaranthus hypochondriacus l. in response to ageratum enation virus infection. | amaranthus hypochondriacus l. infected with ageratum enation virus (aev) was investigated for identifying alteration in the anatomical structures, sap translocation and metabolomic variations using light microscopy, magnetic resonance imaging, nmr spectroscopy and gc-ms, respectively. combination of gc-ms and nmr spectroscopy identified 68 polar and non-polar metabolites that were present in different levels in healthy and virus-infected a. hypochondriacus. contrast of t₁ and t₂ weighted mr imag ... | 2012 | 22683210 |
| characterization and expression analysis of the starch synthase gene family in grain amaranth (amaranthus cruentus l.). | characterization and expression analysis of the starch synthase gene family was performed from grain amaranth. extensive searches for sequence data for amaranth starch synthase genes were done in the literature and in genbank, and identified four genes encoding gbssi, sssi, sssii, and sbe. alignment of predicted amino acid sequences showed that there were low levels of sequence identity among these four genes (10.6-34.5%). there was higher homology in the c-terminal region and lower homology in ... | 2012 | 23412630 |
| metabolic and enzymatic changes associated with carbon mobilization, utilization and replenishment triggered in grain amaranth (amaranthus cruentus) in response to partial defoliation by mechanical injury or insect herbivory. | amaranthus cruentus and a. hypochondriacus are crop plants grown for grain production in subtropical countries. recently, the generation of large-scale transcriptomic data opened the possibility to study representative genes of primary metabolism to gain a better understanding of the biochemical mechanisms underlying tolerance to defoliation in these species. a multi-level approach was followed involving gene expression analysis, enzyme activity and metabolite measurements. | 2012 | 22966837 |
| iron, zinc and calcium dialyzability from extruded product based on whole grain amaranth (amaranthus caudatus and amaranthus cruentus) and amaranth/zea mays blends. | amaranth is a native american grain appreciated for its high nutritional properties including high mineral content. the aim of this study was to evaluate the availability of fe, zn and ca from extruded products made with two varieties of amaranth and their mixtures with maize at two levels of replacement. mineral availability was estimated using dialyzability method. the contents of fe (64.0-84.0 mg/kg), ca (1977.5-2348.8 mg/kg) and zn (30.0-32.1 mg/kg) were higher in amaranth than in maize prod ... | 2013 | 23256750 |
| cytogenetic studies in four cultivated amaranthus (amaranthaceae) species. | in the present study, the chromosomes numbers were confirmed, 2n = 34 for amaranthus cruentus linnaeus, 1759, and 2n = 32 for amaranthus hypochondriacus linnaeus, 1753, amaranthus mantegazzianus passer, 1864, and amaranthus caudatus linnaeus, 1753. the distribution and variability of constitutive heterochromatin were detailed using dapi-cma3 banding technique. the position of the nucleolus organizer region (nor) was observed using ag-nor banding (active loci) and fluorescent in situ hybridizatio ... | 2013 | 24260690 |
| grain amaranths are defoliation tolerant crop species capable of utilizing stem and root carbohydrate reserves to sustain vegetative and reproductive growth after leaf loss. | tolerance to defoliation can be defined as the degree to which productivity is affected by photosynthetic area reduction. this trait was studied in grain amaranth (amaranthus cruentus and a. hypochondriacus), which are considered to be a highly defoliation-tolerant species. the physiological and biochemical responses to increasing levels of mechanical leaf removal up to total defoliation were quantified. tolerance appeared to be dependent on various factors: ( i) amount of lost tissue; (ii) mech ... | 2013 | 23861825 |
| biochemical and molecular study of the influence of amaranthus hypochondriacus flour on serum and liver lipids in rats treated with ethanol. | hyperlipidemia and hepatic steatosis are frequent alterations due to alcohol abuse. amaranth is a pseudocereal with hypolipidemic potential among other nutraceutical actions. here we study the effect of amaranthus hypochondriacus (ah) seeds on serum and liver lipids, and the expression of genes associated to lipid metabolism and liver histology in male wistar rats intoxicated with ethanol. the animals were divided into four groups; two groups were fed the american institute of nutrition 1993 for ... | 2013 | 24122546 |
| biotechnological advances in amaranths species and their future outlook in crop improvement--a review. | the grain amaranths were important food crops for the ancient middle and south american civilization. the germplasm of amaranths also has not been well characterized from the point of view of its exploitation for improvement of amaranths in general, a grain amaranth in particular. among all under exploited crops grain amaranth is the most suitable candidate to begin with. as it is one of the most important under exploited crops being used as subsidiary or supplementary food. this work will repor ... | 2013 | 23521706 |
| in vitro inhibition of dipeptidyl peptidase iv by peptides derived from the hydrolysis of amaranth (amaranthus hypochondriacus l.) proteins. | bioactive compounds present in foods could potentially have beneficial effects on human health. in this study we report the in vitro inhibitory capacity of peptides released from amaranth seed proteins after enzymatic digestion, against dipeptidyl peptidase iv (dppiv); an enzyme known to deactivate incretins, hormones involved in insulin secretion. other seeds, such as soybean, black bean, and wheat were also tested. the highest inhibition of dppiv was observed with amaranth peptides released af ... | 2013 | 23122124 |
| accumulation and detoxification of cadmium by larvae of prodenia litura (lepidoptera: noctuidae) feeding on cd-enriched amaranth leaves. | cadmium is a potentially toxic and carcinogenic nonessential heavy metal. this study investigated cd accumulation along the soil-plant (amaranthus hypochondriacus l.)-insect (prodenia litura) food chain and the detoxification strategies at different trophic levels. a. hypochondriacus leaves could accumulate high levels of cd from polluted soil. the cd concentration in p. litura larvae increased with increasing cd concentrations in the food plant. transfer coefficients of cd were high from soil t ... | 2013 | 23276459 |
| simulation of the effect of maize porridge fortified with grain amaranth or micronutrient powder containing nafeedta on iron intake and status in kenyan children. | simulating the probable impact of grain amaranth and highly absorbable, low-fe micronutrient powder (mnp) on fe status in a potential target population is an essential step in choosing and developing an appropriate actual intervention. | 2013 | 23218415 |
| formulation of a drinkable peanut-based therapeutic food for malnourished children using plant sources. | high ingredient costs continue to hamper local production of therapeutic foods (tfs). development of formulations without milk, the most expensive ingredient, is one way of reducing cost. this study formulated a ready-to-drink peanut-based tf that matched the nutrient composition of f100 using plant sources. three least cost formulations namely, a, b and c were designed using computer formulation software with peanuts, beans, sesame, cowpeas and grain amaranth as ingredients. a 100 g portion of ... | 2013 | 23198736 |
| betacyanin biosynthetic genes and enzymes are differentially induced by (a)biotic stress in amaranthus hypochondriacus. | an analysis of key genes and enzymes of the betacyanin biosynthetic pathway in amaranthus hypochondriacus (ah) was performed. complete cdna sequence of ah genes coding for cyclo-dopa 5-o glucosyltransferase (ahcdopa5-gt), two 4, 5-dopa-extradiol-dioxygenase isoforms (ahdoda-1 and ahdoda-2, respectively), and a betanidin 5-o-glucosyltransferase (ahb5-gt), plus the partial sequence of an orthologue of the cytochrome p-450 r gene (cyp76ad1) were obtained. with the exception ahdoda-2, which had a cl ... | 2014 | 24896616 |
| molecular characterization of an isoamylase 1-type starch debranching enzyme (dbei) in grain amaranth (amaranthus cruentus l.). | the purpose of this study was to characterize the molecular profile of a starch debranching enzyme (dbe) in grain amaranth. a cdna clone that encodes a putative dbe was isolated from amaranth perisperm and then sequenced. this amaranth dbe appears to be an isa1-type dbe (dbei), based on its substrate specificity and the sequence similarity between the 2,391-bp cdna clone and isa1 s from potato and arabidopsis. the mature dbei of amaranth consists of 796 amino acids (90.5 kda). we analyzed the tr ... | 2014 | 25167854 |
| contrasting effects of silicates on cadmium uptake by three dicotyledonous crops grown in contaminated soil. | the effects of several silicates (talcum powder (tp), calcium silicate (cs), sodium silicate (ss), and potassium silicate (ps)), in comparison with other amendments (quicklime (ql) and potassium dihydrogen phosphate (pdp)) on cadmium (cd) uptake by three dicotyledonous crops (amaranthus hypochondriacus l. cv. 'k112', amaranthus tricolor l., and brassica oleracea var. albiflora kuntze) were investigated in cd-contaminated soil. the effects of both application methods of amendments (singly and com ... | 2014 | 24801288 |
| naphthoquinone spiroketals and organic extracts from the endophytic fungus edenia gomezpompae as potential herbicides. | from the fermentation mycelium of the endophytic fungus edenia gomezpompae were obtained several phytotoxic compounds including two new members of the naphthoquinone spiroketal family, namely, palmarumycin eg1 (1) and preussomerin eg4 (4). in addition, preussomerins eg1-eg3 (7-9) and palmarumycins cp19 (2), cp17 (3), and cp2 (6), as well as ergosta-4,6,8(14),22-tetraen-3-one (5), were obtained. compounds 2, 3, and 5 are new to this species. the structures of palmarumycins cp19 (2) and cp17 (3) w ... | 2014 | 24689520 |
| extrusion improved the anti-inflammatory effect of amaranth (amaranthus hypochondriacus) hydrolysates in lps-induced human thp-1 macrophage-like and mouse raw 264.7 macrophages by preventing activation of nf-κb signaling. | the objective was to compare the anti-inflammatory potential of unprocessed and extruded amaranth pepsin/pancreatin hydrolysates in lps-induced human thp-1 macrophages-like and mouse raw 264.7 macrophages focusing on their anti-inflammatory mechanism of action related to nf-κb signaling pathway. | 2014 | 24431078 |
| the draft genome and transcriptome of amaranthus hypochondriacus: a c4 dicot producing high-lysine edible pseudo-cereal. | grain amaranths, edible c4 dicots, produce pseudo-cereals high in lysine. lysine being one of the most limiting essential amino acids in cereals and c4 photosynthesis being one of the most sought-after phenotypes in protein-rich legume crops, the genome of one of the grain amaranths is likely to play a critical role in crop research. we have sequenced the genome and transcriptome of amaranthus hypochondriacus, a diploid (2n = 32) belonging to the order caryophyllales with an estimated genome siz ... | 2014 | 25071079 |
| effect of heat processing on selected grain amaranth physicochemical properties. | grain amaranth is a pseudocereal with unique agricultural, nutritional, and functional properties. this study was undertaken to determine the effect of different heat-processing methods on physicochemical and nutraceutical properties in two main grain amaranth species, of amaranthus hypochondriacus l. and amaranthus cruentus l. grains were prepared by roasting and popping, milled and analyzed for changes in in vitro protein digestibility, gruel viscosity, pasting characteristics, antioxidant act ... | 2014 | 24804060 |
| enhancement of cd phytoextraction by two amaranthus species with endophytic rahnella sp. jn27. | microbe-assisted phytoextraction shows a potential for the remediation of metal-contaminated soils. the aim of this study was to isolate, characterize, and evaluate the potential of endophytic bacteria in improving plant growth and metal uptake by cd-hyperaccumulators-amaranthus hypochondriacus and amaranthus mangostanus. an endophytic bacterial strain jn27 isolated from roots of zea mays displayed high tolerance and mobilization to cd, and was identified as rahnella sp. based on 16s rdna sequen ... | 2014 | 24314897 |
| treatment of amaranthus cruentus with chemical and biological inducers of resistance has contrasting effects on fitness and protection against compatible gram positive and gram negative bacterial pathogens. | amaranthus cruentus (ac) plants were treated with the synthetic systemic acquired resistance (sar) inducer benzothiadiazole (bth), methyl jasmonate (meja) and the incompatible pathogen, pseudomonas syringae pv. syringae (pss), under greenhouse conditions. the treatments induced a set of marker genes in the absence of pathogen infection: bth and pss similarly induced genes coding for pathogenesis-related and antioxidant proteins, whereas meja induced the arginase, lox2 and amarandin 1 genes. bth ... | 2014 | 24913050 |
| burkholderia ambifaria and b. caribensis promote growth and increase yield in grain amaranth (amaranthus cruentus and a. hypochondriacus) by improving plant nitrogen uptake. | grain amaranth is an emerging crop that produces seeds having high quality protein with balanced amino-acid content. however, production is restricted by agronomic limitations that result in yields that are lower than those normally produced by cereals. in this work, the use of five different rhizobacteria were explored as a strategy to promote growth and yields in amaranthus hypochondriacus cv. nutrisol and a. cruentus cv. candil, two commercially important grain amaranth cultivars. the plants ... | 2014 | 24533068 |
| taxonomic and functional structure of phytophagous insect communities associated with grain amaranth. | amaranthus are worldwide attacked mainly by leaf chewers and sucker insects. stem borers and leaf miners follow in importance, while minor herbivores are leaf rollers, folders, and rasping-sucking insects. the herbivorous community observed on amaranthus spp. in argentina was consistent with the information reported worldwide both in guild composition and order proportion. amaranth plants had a higher number of phytophagous species in their native rather than in its introduced range. occurrence ... | 2014 | 27194061 |
| a rapid and reliable pcr-restriction fragment length polymorphism (rflp) marker for the identification of amaranthus cruentus species. | a rapid and reliable pcr-restriction fragment length polymorphism (rflp) marker was developed to identify the amaranthus cruentus species by comparing sequences of the starch branching enzyme (sbe) locus among the three cultivated grain amaranths. we determined the partial sbe genomic sequence in 72 accessions collected from diverse locations around the world by direct sequence analysis. then, we aligned the gene sequences and searched for restriction enzyme cleavage sites specific to each speci ... | 2014 | 25914599 |
| [antioxidant capacity of byproducts from amaranth (amaranthus hypochondriacus) seeds]. | the antioxidant capacity (ca) of byproducts from amaranth (amaranthus hypochondriacus) seeds from two harvest parcels as a function of three extraction methods and two solvents was evaluated. on a first stage the effect of extraction method (homogenization, low frequency ultrasound, or the combination homogenization-ultrasound) and extraction solvent (methanol or ethanol, 100%) were evaluated; on a second stage, the effect of extraction solvent concentration (100%, 70%, or 50%) was evaluated. ca ... | 2014 | 25796717 |
| neutral pectin side chains of amaranth (amaranthus hypochondriacus) contain long, partially branched arabinans and short galactans, both with terminal arabinopyranoses. | amaranth is a pseudocereal of high nutritional value, including a high dietary fiber content. amaranth dietary fiber was suggested to contain large amounts of neutral rhamnogalacturonan i side chains. in this study, endo-arabinanase and endo-galactanase were used to liberate arabinan and galactan oligosaccharides from amaranth fiber. the liberated oligosaccharides were identified by high-performance anion exchange chromatography with pulsed amperometric detection (hpaec-pad) and hplc-ms(n) using ... | 2015 | 25529336 |
| evaluation of the nutritional quality of the grain protein of new amaranths varieties. | the efforts for promoting the consumption of food of plant origin are increasingly growing. the amaranth grain is an important vegetable protein source, superior in content and quality to traditional cereals. in the central-west region of argentina, new amaranth varieties have been obtained to optimize its agronomic traits and promote its use. in this work, the analysis of the wholemeal flour protein from seeds of two new varieties of amaranthus cruentus var. candil (cc) and amaranthus hypochond ... | 2015 | 25501792 |
| angiotensin i-converting enzyme inhibitory and antioxidant activities and surfactant properties of protein hydrolysates as obtained of amaranthus hypochondriacus l. grain. | even though some research has been carried out on surfactant properties of amaranth protein hydrolysates, their bio-functionality has not been studied yet. in this work amaranth grain alb 1 and glob were hydrolyzed (alb 1h, glob h) and foams and emulsions at optimal conditions (t, e/s, ph5) were prepared in order to assess techno-functional properties such as foaming (f) and emulsifying (e) (capacity (c) and stability (s)). fc and ec were much better for glob h than for alb h. angiotensin i-conv ... | 2015 | 25829587 |
| biochemical and molecular characterization of a novel cu/zn superoxide dismutase from amaranthus hypochondriacus l.: an intrinsically disordered protein. | a novel cu/znsod from amaranthus hypochondriacus was cloned, expressed, and characterized. nucleotide sequence analysis showed an open reading frame (orf) of 456 bp, which was predicted to encode a 15.6-kda molecular weight protein with a pi of 5.4. structural analysis showed highly conserved amino acid residues involved in cu/zn binding. recombinant amaranth superoxide dismutase (rahsod) displayed more than 50 % of catalytic activity after incubation at 100 °c for 30 min. in silico analysis of ... | 2015 | 26129702 |
| characterization of peptides found in unprocessed and extruded amaranth (amaranthus hypochondriacus) pepsin/pancreatin hydrolysates. | the objectives of this study were to characterize peptides found in unprocessed amaranth hydrolysates (uah) and extruded amaranth hydrolysates (eah) and to determine the effect of the hydrolysis time on the profile of peptides produced. amaranth grain was extruded in a single screw extruder at 125 °c of extrusion temperature and 130 rpm of screw speed. unprocessed and extruded amaranth flour were hydrolyzed with pepsin/pancreatin enzymes following a kinetic at 10, 25, 60, 90, 120 and 180 min for ... | 2015 | 25894223 |
| interactions between cs, sr, and other nutrients and trace element accumulation in amaranthus shoot in response to variety effect. | aiming at clarifying the interactions between cs, sr, and other mineral elements in the genus amaranthus, this study adopted 33 different varieties of amaranthus and investigated the concentrations of 23 mineral elements in shoots grown in the fields of iino in fukushima prefecture. significant varietal effects were detected for all elements except se, and degree of interspecies variation was highly element dependent. among 23 elements, amaranths were less sensitive to the accumulation of cs and ... | 2015 | 25660261 |
| phytotoxic eremophilane sesquiterpenes from the coprophilous fungus penicillium sp. g1-a14. | bioassay-directed fractionation of an extract from the grain-based culture of the coprophilous fungus penicillium sp. g1-a14 led to the isolation of a new eremophilane-type sesquiterpene, 3r,6r-dihydroxy-9,7(11)-dien-8-oxoeremophilane (1), along with three known analogues, namely, isopetasol (2), sporogen ao-1 (3), and dihydrosporogen ao-1 (4). the structure of 1 was elucidated using 1d and 2d nmr and single-crystal x-ray diffraction. assignment of absolute configuration at the stereogenic cente ... | 2015 | 25603174 |
| multifunctional amaranth cystatin inhibits endogenous and digestive insect cysteine endopeptidases: a potential tool to prevent proteolysis and for the control of insect pests. | in a previous study, the amaranth cystatin was characterized. this cystatin is believed to provide protection from abiotic stress because its transcription is induced in response to heat, drought, and salinity. it has also been shown that recombinant amaranth cystatin inhibits bromelain, ficin, and cysteine endopeptidases from fungal sources and also inhibits the growth of phytopathogenic fungi. in the present study, evidence is presented regarding the potential function of amaranth cystatin as ... | 2015 | 25345487 |
| the tolerance of grain amaranth (amaranthus cruentus l.) to defoliation during vegetative growth is compromised during flowering. | the biochemical processes underlying variations of tolerance are often accompanied by source-sink transitions affecting carbon (c) metabolism. we investigated the tolerance of amaranthus cruentus l. to total mechanical defoliation through development and in different growing seasons. defoliated a. cruentus recovered ∼80% of their above-ground biomass and ∼100% of grain yield compared to intact plants if defoliation occurred early during ontogeny, but could not compensate when defoliation occurre ... | 2015 | 25863889 |
| the overexpression of an amaranthus hypochondriacus nf-yc gene modifies growth and confers water deficit stress resistance in arabidopsis. | nuclear factor-y (nf-y), is a plant heterotrimeric transcription factor constituted by nf-ya, nf-yb and nf-yc subunits. the function of many nf-y subunits, mostly of the a and b type, has been studied in plants, but knowledge regarding the c subunit remains fragmentary. here, a water stress-induced nf-yc gene from amaranthus hypochondriacus (ahnf-yc) was further characterized by its overexpression in transgenic arabidospis thaliana plants. a role in development was inferred from modified growth ... | 2015 | 26475185 |
| the novel and taxonomically restricted ah24 gene from grain amaranth (amaranthus hypochondriacus) has a dual role in development and defense. | grain amaranths tolerate stress and produce highly nutritious seeds. we have identified several (a)biotic stress-responsive genes of unknown function in amaranthus hypochondriacus, including the so-called ah24 gene. ah24 was expressed in young or developing tissues; it was also strongly induced by mechanical damage, insect herbivory and methyl jasmonate and in meristems and newly emerging leaves of severely defoliated plants. interestingly, an in silico analysis of its 1304 bp promoter region sh ... | 2015 | 26300899 |
| correction to neutral pectin side chains of amaranth (amaranthus hypochondriacus) contain long, partially branched arabinans and short galactans, both with terminal arabinopyranoses. | 2015 | 26176260 | |
| novel avian single-chain fragment variable (scfv) targets dietary gluten and related natural grain prolamins, toxic entities of celiac disease. | celiac disease (cd) is a chronic, small intestinal inflammatory disease mediated by dietary gluten and related prolamins. the only current therapeutic option is maintenance of a strict life-long gluten-free diet, which implies substantial burden for cd patients. different treatment regimes might be feasible, including masking of toxic celiac peptides with blocking antibodies or fragments thereof. the objective of this study was therefore to select and produce a recombinant avian single-chain fra ... | 2015 | 26625857 |
| optimized formulation and processing protocol for a supplementary bean-based composite flour. | protein-energy malnutrition is the most serious nutritional body depletion disorder among infants and young children in developing countries, attributable to inadequate energy and nutrient intake, partly due to high dietary bulk of weaning and infant foods. the gruels fed to children are typically of low nutrient and energy density due to the low flour incorporation rate required for drinking viscosity. the aim of this study was to develop a nutritious product, based on common dry beans and othe ... | 2015 | 26788294 |
| sensory acceptability and factors predicting the consumption of grain amaranth in kenya. | this study investigated the effect of adding grain amaranth flour on sensory acceptability of maize porridge in kenya. factors influencing the intention of mothers to feed their children on grain amaranth were identified. a significant difference between the various porridge ratios (50:50, 70:30, and 100:0 amaranth:maize) either in unfermented or fermented form could be detected. preference for the unfermented amaranth enriched maize porridge was observed. intention significantly correlated and ... | 2015 | 21895418 |
| cloning of a cdna encoding a cystatin from grain amaranth (amaranthus hypochondriacus) showing a tissue-specific expression that is modified by germination and abiotic stress. | a cdna, encoding a cysteine protease inhibitor (ahcpi), was isolated from an immature seed cdna library of grain amaranth (amaranthus hypochondriacus l.) and characterized. it encoded a polypeptide of 247 amino acids (aa), including a putative n-terminal signal peptide. other relevant regions found in its sequence included the g and pw conserved aa motifs, the consensus larfav sequence for phytocystatins and the reactive site qvvag. the predicted aa sequence for ahcpi showed a significant homolo ... | 2016 | 17870587 |
| drought-tolerant streptomyces pactum act12 assist phytoremediation of cadmium-contaminated soil by amaranthus hypochondriacus: great potential application in arid/semi-arid areas. | microbe-assisted phytoremediation provides an effective approach to clean up heavy metal-contaminated soils. however, severe drought may affect the function of microbes in arid/semi-arid areas. streptomyces pactum act12 is a drought-tolerant soil actinomycete strain isolated from an extreme environment on the qinghai-tibet plateau, china. in this study, pot experiments were conducted to assess the effect of act12 on cd tolerance, uptake, and accumulation in amaranth (amaranthus hypochondriacus) ... | 2016 | 27072036 |
| inclusion of ancient latin-american crops in bread formulation improves intestinal iron absorption and modulates inflammatory markers. | this study compares iron (fe) absorption in fe-deficient animals from bread formulations prepared by substitution of white wheat flour (wb) by whole wheat flour (wwb), amaranth flour (amaranthus hypochondriacus, 25%) (ab) and quinoa flour (chenopodium quinoa, 25%) (qb), or chia flour (salvia hispanica l, 5%) (chb). hematological parameters of fe homeostasis, plasmatic active hepcidin peptide production (lc coupled to ms/ms), and liver tfr-2 and il-6 expression (rt-qpcr) were determined. the diff ... | 2016 | 26787109 |
| antithrombotic effects of amaranthus hypochondriacus proteins in rats. | cardiovascular disease (cvd) is a major cause of disability and premature death throughout the world. diets with antithrombotic components offer a convenient and effective way of preventing and reducing cvd incidence. the aim of the present work was to assess in vivo and ex vivo effects of amaranthus hypochondriacus proteins on platelet plug formation and coagulation cascade. amaranth proteins were orally administrated to rats (ag, 8 animals) and bleeding time was determined showing no significa ... | 2016 | 26627100 |
| crossing methods and cultivation conditions for rapid production of segregating populations in three grain amaranth species. | grain amaranths (amaranthus spp.) have been cultivated for thousands of years in central and south america. their grains are of high nutritional value, but the low yield needs to be increased by selection of superior genotypes from genetically diverse breeding populations. amaranths are adapted to harsh conditions and can be cultivated on marginal lands although little is known about their physiology. the development of controlled growing conditions and efficient crossing methods is important fo ... | 2016 | 27375666 |
| antioxidant, functional and rheological properties of optimized composite flour, consisting wheat and amaranth seed, brewers' spent grain and apple pomace. | consumer's interest in functional food has continued to increase due to its potential health benefits. this study therefore is aimed at developing a functional wheat based flour comprising, amaranth (amaranthus hypochondriacus) seed, brewers' spent grain and apple pomace. the statistical analyses were carried out using response surface methodology (rsm). for the experimental design, the composite flour components were the variables while the proximate and mineral compositions were the responses. ... | 2016 | 27162395 |
| phytotoxic potential of secondary metabolites and semisynthetic compounds from endophytic fungus xylaria feejeensis strain sm3e-1b isolated from sapium macrocarpum. | bioactivity-directed fractionation of the combined culture medium and mycelium extract of the endophytic fungus xylaria feejeensis strain sm3e-1b, isolated from sapium macrocarpum, led to the isolation of three known natural products: (4s,5s,6s)-4-hydroxy-3-methoxy-5-methyl-5,6-epoxycyclohex-2-enone or coriloxine, 1; 2-hydroxy-5-methoxy-3-methylcyclohexa-2,5-diene-1,4-dione, 2; and 2,6-dihydroxy-5-methoxy-3-methylcyclohexa-2,5-diene-1,4-dione or fumiquinone b, 3. this is the first report of comp ... | 2016 | 27159617 |
| phytotoxic and antimicrobial activity of volatile and semi-volatile organic compounds from the endophyte hypoxylon anthochroum strain blaci isolated from bursera lancifolia (burseraceae). | to evaluate the phytotoxic, antifungal and antioomycete activity; and, determine the chemical composition of the volatile organic compounds (vocs) and semi-volatile metabolites produced by the endophyte hypoxylon anthochroum strain blaci isolated from bursera lancifolia. | 2016 | 27159426 |
| physiological and molecular analysis of aluminium-induced organic acid anion secretion from grain amaranth (amaranthus hypochondriacus l.) roots. | grain amaranth (amaranthus hypochondriacus l.) is abundant in oxalate and can secrete oxalate under aluminium (al) stress. however, the features of al-induced secretion of organic acid anions (oa) and potential genes responsible for oa secretion are poorly understood. here, al-induced oa secretion in grain amaranth roots was characterized by ion charomatography and enzymology methods, and suppression subtractive hybridization (ssh) together with quantitative real-time pcr (qrt-pcr) was used to i ... | 2016 | 27144562 |
| the amaranth genome: genome, transcriptome, and physical map assembly. | amaranth ( l.) is an emerging pseudocereal native to the new world that has garnered increased attention in recent years because of its nutritional quality, in particular its seed protein and more specifically its high levels of the essential amino acid lysine. it belongs to the amaranthaceae family, is an ancient paleopolyploid that shows disomic inheritance (2 = 32), and has an estimated genome size of 466 mb. here we present a high-quality draft genome sequence of the grain amaranth. the geno ... | 2016 | 27898770 |
| effects of heat and ph treatments and in vitro digestion on the biological activity of protein hydrolysates of amaranthus hypochondriacus l. grain. | the aim of this work was to assess the effects of temperature (t), time (t) and ph treatments and an in vitro digestion on the stability of the angiotensin i-converting-enzyme-inhibitory activity (aceia) and antithrombotic activity (ata; assessed as inhibition of platelet aggregation) of selected protein hydrolysates of amaranth named alb1h103 and gloh88 and gluh24 with dipeptidyl peptidase iv inhibitory activity (dppivia). heat treatment (40-100 °c) for 1 h showed no significant differences amo ... | 2016 | 28115770 |
| effect of grain moisture content during milling on pasting profile and functional properties of amaranth fractions. | evaluation of functional properties of milled fractions of grain amaranth may be useful to decide the end uses of the grain. hence, pasting profiles of amaranth fractions obtained by milling the grains at different moisture contents were studied in relation with their starch profile and also with their swelling power and solubility indices. it was observed that, for flour fraction, the viscosity parameters were lowest at 14-16 % moisture content. swelling power and solubility indices of the samp ... | 2016 | 27407210 |
| overexpression of grain amaranth (amaranthus hypochondriacus) aherf or ahdof transcription factors in arabidopsis thaliana increases water deficit- and salt-stress tolerance, respectively, via contrasting stress-amelioration mechanisms. | two grain amaranth transcription factor (tf) genes were overexpressed in arabidopsis plants. the first, coding for a group vii ethylene response factor tf (i.e., aherf-vii) conferred tolerance to water-deficit stress (ws) in transgenic arabidopsis without affecting vegetative or reproductive growth. a significantly lower water-loss rate in detached leaves coupled to a reduced stomatal opening in leaves of plants subjected to ws was associated with this trait. ws tolerance was also associated wit ... | 2016 | 27749893 |
| the complete chloroplast genome sequences for four amaranthus species (amaranthaceae). | the amaranth genus contains many important grain and weedy species. we further our understanding of the genus through the development of a complete reference chloroplast genome. | 2016 | 27672525 |
| antifungal, anti-oomycete and phytotoxic effects of volatile organic compounds from the endophytic fungus xylaria sp. strain pb3f3 isolated from haematoxylon brasiletto. | to determine the antifungal, anti-oomycete and phytotoxic activity; and chemical composition of the volatile organic compounds (vocs) produced by endophytic fungus xylaria sp. pb3f3 isolated from haematoxylon brasiletto karst. | 2016 | 26920072 |
| two short sequences from amaranth 11s globulin are sufficient to target green fluorescent protein and beta-glucuronidase to vacuoles in arabidopsis cells. | vacuolar sorting of seed storage proteins is a very complex process since several sorting pathways and interactions among proteins of different classes have been reported. in addition, although the c-terminus of several 7s proteins is important for vacuolar delivery, other signals seem also to be involved in this process. in this work, the ability of two sequences of the amaranthus hypochondriacus 11s globulin (amaranthin) to target reporter proteins to vacuoles was studied. we show that the c-t ... | 2016 | 17466526 |
| analysis of phylogenetic relationships and genome size evolution of the amaranthus genus using gbs indicates the ancestors of an ancient crop. | the genus amaranthus consists of 50-70 species and harbors several cultivated and weedy species of great economic importance. a small number of suitable traits, phenotypic plasticity, gene flow and hybridization made it difficult to establish the taxonomy and phylogeny of the whole genus despite various studies using molecular markers. we inferred the phylogeny of the amaranthus genus using genotyping by sequencing (gbs) of 94 genebank accessions representing 35 amaranthus species and measured t ... | 2017 | 28057554 |
| ahdgr2, an amaranth abiotic stress-induced duf642 protein gene, modifies cell wall structure and composition and causes salt and aba hyper-sensibility in transgenic arabidopsis. | an amaranth dgr gene, induced under abiotic stress, modifies cell wall structure and causes hypersensitivity to aba and salt when overexpressed in arabidopsis. duf642 is a highly conserved plant-specific family of unknown cell wall-associated proteins. the ahdgr2 gene, coding for a duf642 protein, was significantly induced in grain amaranth (amaranthus hypochondriacus) plants subjected to water-deficit and salinity stress, thereby suggesting its participation in abiotic stress tolerance in this ... | 2017 | 27988887 |
| stimulation by abscisic acid of the activity of phosphoenolpyruvate carboxylase in leaf disks of amaranthus hypochondriacus l., c4 plant: role of ph and protein levels. | c4 plants can more efficiently fix carbon in drought, high temperatures, and limitations of nitrogen or co2. primary carboxylation is mediated by phosphoenolpyruvate carboxylase (pepc, 4.1.1.31) in mesophyll cytosol of c4 plants. studies on hormonal regulation of c4 pepc have been quite limited. we have examined the activity/regulation of pepc by abscisic acid (aba), a plant hormone, in the leaves of amaranthus hypochondriacus. pepc activity was enhanced upon 1-h incubation with 20 μm aba by abo ... | 2017 | 28251362 |
| influences of calcium silicate on chemical forms and subcellular distribution of cadmium in amaranthus hypochondriacus l. | a pot experiment was conducted to investigate the effects of calcium silicate (cs) on the subcellular distribution and chemical forms of cadmium (cd) in grain amaranths (amaranthus hypochondriacus l. cv. 'k112') grown in a cd contaminated soil. results showed that the dry weight and the photosynthetic pigments contents in grain amaranths increased significantly with the increasing doses of cs treatments, with the highest value found for the treatment of cs3 (1.65 g/kg). compared with the control ... | 2017 | 28074912 |
| development of a nutrient-dense complementary food using amaranth-sorghum grains. | thin porridge from cereals and starchy tubers is a common complementary food in sub saharan africa. it may be high in antinutrients, low in energy, and nutrient density hence inadequate in providing infants' high energy and nutrients requirements per unit body weight. consequently, undernourishment levels among children under 5 years are high. therefore, there is need to avail nutrient-dense complementary foods especially for children in low-resource settings. the study was aimed at developing a ... | 2017 | 28070319 |
| genomic and phenotypic evidence for an incomplete domestication of south american grain amaranth (amaranthus caudatus). | the domestication syndrome comprises phenotypic changes that differentiate crops from their wild ancestors. we compared the genomic variation and phenotypic differentiation of the two putative domestication traits seed size and seed colour of the grain amaranth amaranthus caudatus, which is an ancient crop of south america, and its two close wild relatives and putative ancestors a. hybridus and a. quitensis. genotyping 119 accessions of the three species from the andean region using genotyping b ... | 2017 | 28019043 |