Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| intergametophytic selfing and microgeographic genetic structure shape populations of the intertidal red seaweed chondrus crispus. | understanding how abiotic factors influence the spatial distribution of genetic variation provides insight into microevolutionary processes. the intertidal seascape is characterized by highly heterogeneous habitats which probably influence the partitioning of genetic variation at very small scales. the effects of tidal height on genetic variation in both the haploid (gametophytes) and diploid (tetrasporophytes) stages of the red alga chondrus crispus were studied. fronds were sampled every 25 cm ... | 2013 | 23294351 |
| genome structure and metabolic features in the red seaweed chondrus crispus shed light on evolution of the archaeplastida. | red seaweeds are key components of coastal ecosystems and are economically important as food and as a source of gelling agents, but their genes and genomes have received little attention. here we report the sequencing of the 105-mbp genome of the florideophyte chondrus crispus (irish moss) and the annotation of the 9,606 genes. the genome features an unusual structure characterized by gene-dense regions surrounded by repeat-rich regions dominated by transposable elements. despite its fairly larg ... | 2013 | 23503846 |
| photosynthesis in chondrus crispus: the contribution of energy spill-over in the regulation of excitonic flux. | chondrus crispus is a species of red algae that grows on rocks from the middle intertidal into the subtidal zones of the north atlantic coasts. as such, it has to cope with strongly variable abiotic conditions. here we studied the response of the photosynthetic apparatus of this red alga to illumination. we found that, as previously described in the case of the unicellular alga rhodella violacea (e. delphin et al., plant physiol. 118 (1998) 103-113), a single multi-turnover saturating pulse of l ... | 2013 | 23624348 |
| complete mitochondrial genome of the marine red alga grateloupia angusta (halymeniales). | the first complete mitochondrial genome (27,943 bp) of the halymenialean red alga, grateloupia angusta, was sequenced. the circular mitogenome contains 47 genes, including 26 protein-coding, 19 trna and 2 rrna genes. the rps3 and rpl16 genes are overlapped by 7 bp. the majority of protein-coding genes (17 of 26 genes) use typical atg start codon, however, 9 genes use alternative start codons such as att, aat, tta and ttg. the g. angusta mitogenome shows a significant difference to that of chondr ... | 2014 | 23789773 |
| components of the cultivated red seaweed chondrus crispus enhance the immune response of caenorhabditis elegans to pseudomonas aeruginosa through the pmk-1, daf-2/daf-16, and skn-1 pathways. | marine macroalgae are rich in bioactive compounds that can, when consumed, impart beneficial effects on animal and human health. the red seaweed chondrus crispus has been reported to have a wide range of health-promoting activities, such as antitumor and antiviral activities. using a caenorhabditis elegans infection model, we show that c. crispus water extract (ccwe) enhances host immunity and suppresses the expression of quorum sensing (qs) and the virulence factors of pseudomonas aeruginosa (s ... | 2013 | 24056462 |
| anti-biofilm performance of three natural products against initial bacterial attachment. | marine bacteria contribute significantly towards the fouling consortium, both directly (modern foul release coatings fail to prevent "slime" attachment) and indirectly (biofilms often excrete chemical cues that attract macrofouling settlement). this study assessed the natural product anti-biofilm performance of an extract of the seaweed, chondrus crispus, and two isolated compounds from terrestrial sources, (+)-usnic acid and juglone, against two marine biofilm forming bacteria, cobetia marina a ... | 2013 | 24192819 |
| dark respiration in the marine macroalga chondrus crispus (rhodophyceae). | dark respiration in the red macroalga chondrus crispus was studied under a variety of conditions. the components of respiration were examined using selective inhibitors in order to characterise pathways of respiration and examine regulation of respiration in marine macroalgae.in comparison to respiration rates generally reported for higher-plant leaves and roots, the steady-state rate of o2 consumption by this alga, after 30 min dark pretreatment, was found to be quite low (three- to sixfold low ... | 1986 | 24232031 |
| protoplast production in chondrus crispus gametophytes (gigartinales, rhodophyta). | protoplasts were isolated from female gametophytes of chondrus crispus (stackh.) using commercial cellulase and various carrageenases prepared from marine bacteria. depending on the nature of the donor tissue (apices or whole thallus, wild or cultivated strains), yields ranged from 1.0-8.5×10(8) protoplasts per gram of fresh tissue. preincubating the tissue with a potassium chelator, kryptofix 222, enhanced protoplast yields by 30-50 %. based on staining with fluorescein diacetate most protoplas ... | 1990 | 24232676 |
| community composition of the planctomycetes associated with different macroalgae. | insights into the diversity of marine natural microbial biofilms, as for example those developing at the surface of marine macroalgae, can be obtained by using molecular techniques based on 16s rrna genes. we applied denaturing gradient gel electrophoresis (dgge) with 16s rrna genes-specific primers for planctomycetes to compare the communities of these organisms developing on six different macroalgae (chondrus crispus, fucus spiralis, mastocarpus stellatus, porphyra dioica, sargassum muticum, a ... | 2014 | 24266389 |
| population studies and carrageenan properties in eight gigartinales (rhodophyta) from western coast of portugal. | eight carrageenophytes, representing seven genera and three families of gigartinales (florideophyceae), were studied for 15 months. the reproductive status, dry weight, and carrageenan content have been followed by a monthly random sampling. the highest carrageenan yields were found in chondracanthus acicularis (61.1%), gigartina pistillata (59.7%), and chondracanthus teedei var. lusitanicus (58.0%). species of cystocloniaceae family produces predominantly iota-carrageenans; gigartinaceae family ... | 2013 | 24288514 |
| intertidal population genetic dynamics at a microgeographic seascape scale. | the intertidal community is among the most physically harsh niches on earth, with highly heterogeneous environmental and biological factors that impose strong habitat selection on population abundance, genetic connectivity and ecological adaptation of organisms in nature. however, most genetic studies to date have concentrated on the influence of basin-wide or regional marine environments (e.g. habitat discontinuities, oceanic currents and fronts, and geographic barriers) on spatiotemporal distr ... | 2013 | 24433569 |
| on the nature of the oxygen uptake in the light by chondrus crispus. effects of inhibitors, temperature and light intensity. | the nature of the different processes of o2 uptake involved in the light in the red macroalga chondrus crispus stackhouse (rhodophyta, gigartinales) was investigated. at limiting co2, inh (2.5 mm) did not alter the o2 uptake rate. glycolate was not excreted and did not accumulate within the cells. kcn reduced the rate of o2 uptake in the light by 76% at limiting co2 and by 43% at saturating co2, but caused > 95% inhibition of o2 evolution. dcmu (5 μm) totally blocked the photosynthetic electron ... | 1987 | 24435462 |
| carrageenans in the gametophytic and sporophytic stages of chondrus crispus. | the morphologically similar sporophytic and gametophytic plants of chondrus crispus stackhouse were examined and it was shown that the former contain λ-carrageenan. the gametophytes contain ϰ- and two additional carrageenans which are kcl-soluble and may comprise up to 25% of the total carrageenan. after alkaline modification, these kcl-soluble components were separated into a gel and a soluble carrageenan. the gel was indistinguishable from ϰ-carrageenan and presumably was derived from μ-carrag ... | 1973 | 24468729 |
| rt-qpcr normalization genes in the red alga chondrus crispus. | chondrus crispus is a common red macroalga living on the rocky shores of the north atlantic ocean. it has a long research history, being a major source of carrageenan, a thickener widely used in the food industry, but also for physiological and ecological studies. to establish it as a model for red algae, its genome has been sequenced, allowing the development of molecular tools such as quantification of gene expression, including rnaseq and rt-qpcr. to determine appropriate genes for rt-qpcr no ... | 2014 | 24498277 |
| carrageenan: a natural seaweed polysaccharide and its applications. | polysaccharides have been gaining interesting and valuable applications in the food and pharmaceutical fields. as they are derived from the natural source, they are easily available, non-toxic, cheap, biodegradable and biocompatible. carrageenan is one among them, which fulfills the criteria of polysaccharide; it is a natural carbohydrate (polysaccharide) obtained from edible red seaweeds. the name carrageenan is derived from the chondrus crispus species of seaweed (rhodophyceace) known as carra ... | 2014 | 24708958 |
| seaweeds and plastic debris can influence the survival of faecal indicator organisms in beach environments. | the revised bathing water directive (rbwd) introduces more stringent standards for microbial water quality and promotes more pro-active management of the beach environment through the production of a bathing water profile (bwp). the aim of this study was to determine whether living seaweeds in the littoral zone are colonised by faecal indicator organisms (fios), and to quantify the survival dynamics of waterborne escherichia coli in microcosms containing senescing seaweeds. living seaweed (fucus ... | 2014 | 24878304 |
| o father where art thou? paternity analyses in a natural population of the haploid-diploid seaweed chondrus crispus. | the link between life history traits and mating systems in diploid organisms has been extensively addressed in the literature, whereas the degree of selfing and/or inbreeding in natural populations of haploid-diploid organisms, in which haploid gametophytes alternate with diploid sporophytes, has been rarely measured. dioecy has often been used as a proxy for the mating system in these organisms. yet, dioecy does not prevent the fusion of gametes from male and female gametophytes originating fro ... | 2015 | 25227258 |
| feed supplementation with red seaweeds, chondrus crispus and sarcodiotheca gaudichaudii, affects performance, egg quality, and gut microbiota of layer hens. | the aim of this study was to evaluate the effect of the inclusion of red seaweed supplementation to standard poultry diets on production performance, egg quality, intestinal histology, and cecal short-chain fatty acids in lohmann brown classic laying hens. a total of 160 birds were randomly assigned to 8 treatment groups. control hens were fed a basal layer diet; positive control hens were fed a diet containing 2% inulin; and 6 treatment groups were fed a diet containing one of the following; 0. ... | 2014 | 25352682 |
| chemical and mass spectrometry characterization of the red alga pyropia yezoensis chemoprotective protein (pyp): protective activity of the n-terminal fragment of pyp1 against acetaminophen-induced cell death in chang liver cells. | in the present study, the chemical structure and chemoprotective activity of pyropia yezoensis protein (pyp) were investigated using sodium dodecyl sulfate (sds)-polyacrylamide gel electrophoresis, automated protein sequencing, matrix-assisted laser desorption/ionization-quadrupole ion trap-time-of-flight mass spectrometry and a chemoprotective assay using a synthetic peptide. the pyp fraction was demonstrated to contain two proteins: pyp1 (10 kda, sds-resistant dimer) and pyp2 (10 kda). pyp1 is ... | 2015 | 25374159 |
| enzyme-assisted extraction of bioactive material from chondrus crispus and codium fragile and its effect on herpes simplex virus (hsv-1). | codium fragile and chondrus crispus are, respectively, green and red seaweeds which are abundant along the north atlantic coasts. we investigated the chemical composition and antiviral activity of enzymatic extracts of c. fragile (cf) and c. crispus (cc). on a dry weight basis, cf consisted of 11% protein, 31% neutral sugars, 0.8% sulfate, 0.6% uronic acids, and 49% ash, while cc contained 27% protein, 28% neutral sugars, 17% sulfate, 1.8% uronic acids, and 25% ash. enzyme-assisted hydrolysis im ... | 2015 | 25603348 |
| chlorophyta and rhodophyta macroalgae: a source of health promoting phytochemicals. | a detailed study of the lipophilic composition of codium tomentosum, ulva lactuca, gracilaria vermiculophylla and chondrus crispus macroalgae cultivated in the portuguese coast was carried out by gas chromatography-mass spectrometry before and after alkaline hydrolysis. their long-chain aliphatic alcohols and monoglycerides compositions are reported for the first time. additionally, other new compounds were also identified: phytol and neophytadiene in c. tomentosum, u. lactuca and g. vermiculoph ... | 2015 | 25863619 |
| neuroprotective effects of the cultivated chondrus crispus in a c. elegans model of parkinson's disease. | parkinson's disease (pd) is the second most common neurodegenerative disorder in the elderly people, currently with no cure. its mechanisms are not well understood, thus studies targeting cause-directed therapy or prevention are needed. this study uses the transgenic caenorhabditis elegans pd model. we demonstrated that dietary supplementation of the worms with an extract from the cultivated red seaweed chondrus crispus decreased the accumulation of α-synulein and protected the worms from the ne ... | 2015 | 25874922 |
| structural colour in chondrus crispus. | the marine world is incredibly rich in brilliant and intense colours. photonic structures are found in many different species and provide extremely complex optical responses that cannot be achieved solely by pigments. in this study we examine the cuticular structure of the red alga chondrus crispus (irish moss) using anatomical and optical approaches. we experimentally measure the optical response of the multilayer structure in the cuticle. using finite-difference time-domain modelling, we demon ... | 2015 | 26139470 |
| prebiotic effects of diet supplemented with the cultivated red seaweed chondrus crispus or with fructo-oligo-saccharide on host immunity, colonic microbiota and gut microbial metabolites. | gastrointestinal microbial communities are diverse and are composed of both beneficial and pathogenic groups. prebiotics, such as digestion-resistant fibers, influence the composition of gut microbiota, and can contribute to the improvement of host health. the red seaweed chondrus crispus is rich in dietary fiber and oligosaccharides, however its prebiotic potential has not been studied to date. | 2015 | 26271359 |
| the anti-inflammatory effect of algae-derived lipid extracts on lipopolysaccharide (lps)-stimulated human thp-1 macrophages. | algae contain a number of anti-inflammatory bioactive compounds such as omega-3 polyunsaturated fatty acids (n-3 pufa) and chlorophyll a, hence as dietary ingredients, their extracts may be effective in chronic inflammation-linked metabolic diseases such as cardiovascular disease. in this study, anti-inflammatory potential of lipid extracts from three red seaweeds (porphyra dioica, palmaria palmata and chondrus crispus) and one microalga (pavlova lutheri) were assessed in lipopolysaccharide (lps ... | 2015 | 26308008 |
| a cultivated form of a red seaweed (chondrus crispus), suppresses β-amyloid-induced paralysis in caenorhabditis elegans. | we report here the protective effects of a methanol extract from a cultivated strain of the red seaweed, chondrus crispus, against β-amyloid-induced toxicity, in a transgenic caenorhabditis elegans, expressing human aβ1-42 gene. the methanol extract of c. crispus (cce), delayed β-amyloid-induced paralysis, whereas the water extract (ccw) was not effective. the cce treatment did not affect the transcript abundance of amy1; however, western blot analysis revealed a significant decrease of aβ speci ... | 2015 | 26492254 |
| an evaluation of the toxicity and bioaccumulation of bismuth in the coastal environment using three species of macroalga. | bismuth is a heavy metal whose biogeochemical behaviour in the marine environment is poorly defined. in this study, we exposed three different species of macroalga (the chlorophyte, ulva lactuca, the phaeophyte, fucus vesiculosus, and the rhodophyte, chondrus crispus) to different concentrations of bi (up to 50 μg l(-1)) under controlled, laboratory conditions. after a period of 48-h, the phytotoxicity of bi was measured in terms of chlorophyll fluorescence quenching, and adsorption and internal ... | 2016 | 26552530 |
| phase diagrams of hybrid carrageenans extracted from ahnfeltiopsis devoniensis and chondrus crispus. | nacl and kcl phase diagrams of two kappa/iota-hybrid carrageenans (ki) are established, and the rheological properties of obtained solutions and gels are reported. ki were extracted from ahnfeltiopsis devoniensis and chondrus crispus seaweeds and showed different chemical composition, 48 mol% of kappa carrageenan (k) and 52 mol% of iota carrageenan (i), and 78 mol% of k and 22 mol% of i, respectively. phase diagrams are systematically compared those of blends of commercial k and i (k+i) showing ... | 2016 | 26572375 |
| carrageenan-induced inflammation promotes ros generation and neutrophil extracellular trap formation in a mouse model of peritonitis. | neutrophil extracellular traps (nets) are a combination of dna fibers and granular proteins, such as neutrophil elastase (ne). nets are released in the extracellular space in response to different stimuli. carrageenan is a sulfated polysaccharide extracted from chondrus crispus, a marine algae, used for decades in research for its potential to induce inflammation in different animal models. in this study, we show for the first time that carrageenan injection can induce net release in a mouse mod ... | 2016 | 26786873 |
| antiproliferative and antioxidant activities and mycosporine-like amino acid profiles of wild-harvested and cultivated edible canadian marine red macroalgae. | antiproliferative and antioxidant activities and mycosporine-like amino acid (maa) profiles of methanol extracts from edible wild-harvested (chondrus crispus, mastocarpus stellatus, palmaria palmata) and cultivated (c. crispus) marine red macroalgae were studied herein. palythine, asterina-330, shinorine, palythinol, porphyra-334 and usujirene maas were identified in the macroalgal extracts by lc/ms/ms. extract reducing activity rankings were (p < 0.001): wild p. palmata > cultivated c. crispus ... | 2016 | 26805798 |
| essential and toxic elements in seaweeds for human consumption. | essential elements (k, ca, p, s, cl, mn, fe, cu, zn, ni, br, and i) and nonessential or toxic elements (al, ti, si, rb, sr, as, cd, sn, and pb) were determined by energy-dispersive polarized x-ray fluorescence spectrometry in 14 seaweeds purchased in local specialty stores in italy and consumed by humans. the differences in elements between the algae species reached up to 2-4 orders of magnitude. lithothamnium calcareum showed the highest levels of ca, al, si, fe, and ti. palmaria palmata showed ... | 2016 | 26817952 |
| hexose oxidase-mediated hydrogen peroxide as a mechanism for the antibacterial activity in the red seaweed ptilophora subcostata. | marine algae have unique defense strategies against microbial infection. however, their mechanisms of immunity remain to be elucidated and little is known about the similarity of the immune systems of marine algae and terrestrial higher plants. here, we suggest a possible mechanism underlying algal immunity, which involves hexose oxidase (hox)-dependent production of hydrogen peroxide (h2o2). we examined crude extracts from five different red algal species for their ability to prevent bacterial ... | 2016 | 26867214 |
| different speciation for bromine in brown and red algae, revealed by in vivo x-ray absorption spectroscopic studies. | members of various algal lineages are known to be strong producers of atmospherically relevant halogen emissions, that is a consequence of their capability to store and metabolize halogens. this study uses a noninvasive, synchrotron-based technique, x-ray absorption spectroscopy, for addressing in vivo bromine speciation in the brown algae ectocarpus siliculosus, ascophyllum nodosum, and fucus serratus, the red algae gracilaria dura, g. gracilis, chondrus crispus, osmundea pinnatifida, asparagop ... | 2014 | 26988449 |
| a molecular phylogeny of acrochaete and other endophytic green algae (ulvales, chlorophyta)(1). | a molecular phylogeny was reconstructed from a culture collection of >150 isolates of epi-endophytic and endophytic green algae, based on nucleotide sequences of the plastid tufa and nuclear its2 loci. the cultures were isolated from a variety of algal hosts, notably the red algae chondrus crispus, mastocarpus stellatus, and osmundea species, and the brown algae chorda filum and fucus serratus. the phylogeny revealed that in the ulvales the majority of isolates fell into acrochaete (ulvellaceae) ... | 2012 | 27009012 |
| genetic population structure and mating system in chondrus crispus (rhodophyta)(1). | chondrus crispus stackh. has been intensely studied, yet no study to date has elucidated its population structure or mating system despite many populations in which there was a haploid bias and lack of male gametophytes. therefore, 12 nuclear microsatellite loci were identified in this red alga. microsatellite markers were developed and tested against a panel of specimens collected from two shore levels at two sites in brittany, france: pointe de primel and pointe de la jument, concarneau. singl ... | 2011 | 27021973 |
| selection of yeast strains for bioethanol production from uk seaweeds. | macroalgae (seaweeds) are a promising feedstock for the production of third generation bioethanol, since they have high carbohydrate contents, contain little or no lignin and are available in abundance. however, seaweeds typically contain a more diverse array of monomeric sugars than are commonly present in feedstocks derived from lignocellulosic material which are currently used for bioethanol production. hence, identification of a suitable fermentative microorganism that can utilise the princi ... | 2017 | 27057090 |
| red seaweeds sarcodiotheca gaudichaudii and chondrus crispus down regulate virulence factors of salmonella enteritidis and induce immune responses in caenorhabditis elegans. | red seaweeds are a rich source of unique bioactive compounds and secondary metabolites that are known to improve human and animal health. s. enteritidis is a broad range host pathogen, which contaminates chicken and poultry products that end into the human food chain. worldwide, salmonella outbreaks have become an important economic and public health concern. moreover, the development of resistance in salmonella serovars toward multiple drugs highlights the need for alternative control strategie ... | 2016 | 27065981 |
| mutant swarms of a totivirus-like entities are present in the red macroalga chondrus crispus and have been partially transferred to the nuclear genome. | chondrus crispus stackhouse (gigartinales) is a red seaweed found on north atlantic rocky shores. electrophoresis of rna extracts showed a prominent band with a size of around 6,000 bp. sequencing of the band revealed several sequences with similarity to totiviruses, double-stranded rna viruses that normally infect fungi. this virus-like entity was named c. crispus virus (ccv). it should probably be regarded as an extreme viral quasispecies or a mutant swarm since low identity (<65%) was found b ... | 2016 | 27151076 |
| identification and characterization of mirnas in chondrus crispus by high-throughput sequencing and bioinformatics analysis. | chondrus crispus, an economically and medicinally important red alga, is a medicinally active substance and important for anti-tumor research. in this study, 117 c. crispus mirnas (108 conserved and 9 novel) were identified from 2,416,181 small-rna reads using high-throughput sequencing and bioinformatics methods. according to the blast search against the mirbase database, these mirnas belonged to 110 mirna families. sequence alignment combined with homology searching revealed both the conservat ... | 2016 | 27193824 |
| dynamics of δ(15)n isotopic signatures of different intertidal macroalgal species: assessment of bioindicators of n sources in coastal areas. | δ(15)n of annual (ulva sp., porphyra sp.) and perennial intertidal seaweed species (chondrus crispus, fucus sp.) collected on 17 sampling points along the french coast of the english channel in 2012 and 2013 were assessed on their suitability as bioindicators of n pollution in coastal areas. a sine function applied for δ(15)n time series data showed for all the species the same seasonal trend with lowest δ(15)n values in april and highest in summer but with no significant interspecific differenc ... | 2016 | 27349382 |
| development of new efficient method for isolation of phenolics from sea algae prior to their rapid resolution liquid chromatographic-tandem mass spectrometric determination. | the extraction of phenolic compounds from 4 different sea algae samples, three brown algae (cystoseira abies-marina, c. abies-marina grinded under cryogenic conditions with liquid nitrogen, undaria pinnatifida and sargassum muticum) and one red algae (chondrus crispus) via solid phase extraction using micro-elution solid-phase extraction (μ-spe) plate method was studied. prior to μ-spe, 50mg of algae with 80% methanol mixture was extracted in hyphenated series by various extraction techniques, s ... | 2017 | 28012309 |
| differential toxic effects of ulva lactuca (chlorophyta) on the herbivorous gastropods, littorina littorea and l. obtusata (mollusca). | members of the genus ulva are widespread and abundant in intertidal and shallow subtidal areas but there are conflicting data regarding susceptibility to herbivory. while some studies have documented that ulva spp. were favored by a diversity of marine herbivores, other work has revealed herbivore deterrence. we investigated grazing and growth rates of the littorinid species, littorina littorea and l. obtusata, when offered fucus vesiculosus, ascophyllum nodosum, ulva lactuca, and chondrus crisp ... | 2016 | 28028804 |
| epiphytic planctomycetes communities associated with three main groups of macroalgae. | planctomycetes, a unique group of widespread and understudied bacteria, are known to be associated with macroalgae. the temporal dynamics and the host-specific association of planctomycetal communities on fucus spiralis, ulva sp. and chondrus crispus from two locations in the north coast of portugal were assessed both by denaturing gradient gel electrophoresis with group-specific primers and 16s rdna amplicon libraries. the epiphytic planctomycetal communities showed a significant association wi ... | 2017 | 28087803 |
| evaluation of the anticoagulant potential of polysaccharide-rich fractions extracted from macroalgae. | the aim of this study was to evaluate the potential anticoagulant activity of sulphated polysaccharide-containing extracts of six french edible marine macroalgae. aqueous extracts of brown (himanthalia elongata, laminaria digitata, ascophyllum nodosum, fucus vesiculosus), green (ulva lactuca) and red (chondrus crispus) macroalgae were prepared and their biochemical properties were determined, including major biomolecules, sulphate and ash contents. the anticoagulant activity of each extract was ... | 2017 | 28147712 |
| components of predation intensity in the low zone of the new england rocky intertidal region. | predation intensity often increases along local gradients of decreasing environmental rigor. assuming factors such as productivity and heterogeneity do not change along such gradients, potential factors responsible for this pattern include: (1) increased effectiveness per individual predator, (2) increased numbers of individual predators, (3) increased numbers of predator species of the same general morphological attributes, and (4) increased numbers of predator species of different general morp ... | 1983 | 28310571 |
| distribution of carbonic anhydrase in british marine macroalgae. | thirty-four species of marine macroalgae from around st. andrews, scotland, have been assayed for their external activity and thirty-three species for their total activity of carbonic anhydrase. activity was detected in all the rhodophyta tested apart from chondrus crispus, but was absent in codium fragile, enteromorpha sp. and monostroma fuscum (chlorophyta), and alaria esculenta, laminaria digitata, l. saccharina and l. hyperborea (phaeophyta). total activity of carbonic anhydrase per unit fre ... | 1989 | 28312650 |
| comparative genomic analyses of transport proteins encoded within the red algae chondrus crispus, galdieria sulphuraria and cyanidioschyzon merolae. | galdieria sulphuraria and cyanidioschyzon merolae are thermo-acidophilic unicellular red algal cousins capable of living in volcanic environments, although the former can additionally thrive in the presence of toxic heavy metals. bioinformatic analyses of transport systems were carried out on their genomes, as well as that of the mesophilic multicellular red alga chondrus crispus (irish moss). we identified transport proteins related to the metabolic capabilities, physiological properties, and e ... | 2017 | 28328149 |