biogas properties and enzymatic analysis during anaerobic fermentation of phragmites australis straw and cow dung: influence of nickel chloride supplement.the importance of nickel (added as nicl2) on mesophilic anaerobic fermentation of phragmites australis straw and cow dung was demonstrated by investigating the biogas properties, ph values, organic matter degradation [chemical oxygen demand (cod)] and enzyme activities (cellulase, protease and dehydrogenase) during the fermentation process. the results showed that ni(2+) addition increased the cumulative biogas yields by >18 % by improving the efficiency of first peak stage and bringing forward ...201727718040
in vitro screening and evaluation of 37 traditional chinese medicines for their potential to activate peroxisome proliferator-activated receptors-γ.peroxisome proliferator-activated receptors (ppar)-γ is widely used as an attractive target for the treatment of type 2 diabetes mellitus. thiazolidinediones, the agonists of pparγ, has been popularly utilized as insulin sensitizers in the therapy of type 2 diabetes whereas numerous severe side-effects may also occur concomitantly.201727076748
livestock as a potential biological control agent for an invasive wetland plant.invasive species threaten biodiversity and incur costs exceeding billions of us$. eradication efforts, however, are nearly always unsuccessful. throughout much of north america, land managers have used expensive, and ultimately ineffective, techniques to combat invasive phragmites australis in marshes. here, we reveal that phragmites may potentially be controlled by employing an affordable measure from its native european range: livestock grazing. experimental field tests demonstrate that rotati ...201425276502
herbaspirillum sp. strain gw103 alleviates salt stress in brassica rapa l. ssp. interactions between plant and rhizosphere bacteria facilitate plant growth and reduce risks of biotic and abiotic stresses. the present study demonstrates alleviation of salt stress in brassica rapa l. ssp. perkinensis (chinese cabbage) by herbaspirillum sp. strain gw103 isolated from rhizosphere soil of phragmites australis. the strain was capable of producing plant beneficial factors, such as auxin, siderophore, and 1-aminocylopropane-1-carboxylic acid deaminase. treatment of strain gw ...201626358119
screening of plant species for phytoremediation of uranium, thorium, barium, nickel, strontium and lead contaminated soils from a uranium mill tailings repository in south china.the concentrations of uranium, thorium, barium, nickel, strontium and lead in the samples of the tailings and plant species collected from a uranium mill tailings repository in south china were analyzed. then, the removal capability of a plant for a target element was assessed. it was found that phragmites australis had the greatest removal capabilities for uranium (820 μg), thorium (103 μg) and lead (1,870 μg). miscanthus floridulus had the greatest removal capabilities for barium (3,730 μg) an ...201121523506
concentrations of heavy metals and plant nutrients in water, sediments and aquatic macrophytes of anthropogenic lakes (former open cut brown coal mines) differing in stage of acidification.concentration of heavy metals (al, ba, cd, co, cr, cu, fe, mn, ni, pb, sr, v and zn) as well as macronutrients (n, p, k, ca, mg, s) were measured in water, bottom sediments and plants from anthropogenic lakes in west poland. the collected plants were: phragmites australis, potamogeton natans, iris pseudoacorus, juncus effusus, drepanocladus aduncus, juncus bulbosus, phalaris arundinacea, carex remota and calamagrostis epigeios. two reference lakes were sampled for nymphaea alba, phragmites austr ...200111778963
microbial density and diversity in constructed wetland systems and the relation to pollutant removal efficiency.microbes are believed to be at the core of the wastewater treatment processes in constructed wetlands (cws). the aim of this study was to assess the microbial biomass carbon (mbc) and shannon's diversity index (sdi) in the substrate of cws planted with phragmites australis, hymenocallis littoralis, canna indica and cyperus flabelliformis, and to relate mbc and sdi to the pollutant removal in the systems. significant higher mbc was observed in cws with h. littoralis and c. indica than in cws with ...201626877053
capacity and mechanisms of ammonium and cadmium sorption on different wetland-plant derived biochars.the objective of this study was to investigate the relationship between cd(2+)/nh4(+) sorption and physicochemical properties of biochars produced from different wetland plants. biochars from six species of wetland plants (i.e., canna indica, pennisetum purpureum schum, thalia dealbata, zizania caduciflora, phragmites australis and vetiveria zizanioides) were obtained at 500°c and characterized, and their sorption for ammonium and cadmium was determined. there were significant differences in ele ...201626386447
ornamental plants for micropollutant removal in wetland systems.the objective of this paper was to evaluate the efficiency of micropollutant removal, such as cu, zn, carbamazepine, and linear alkylbenzene sulfonates (las), through the use of a subsurface vertical flow constructed wetland system with ornamental plants. zantedeschia aethiopica, canna indica, carex hirta, miscanthus sinensis, and phragmites australis were selected and planted in lysimeters filled up with gravel. the lysimeters were completely saturated with synthetic wastewater (n 280 mg l(-1), ...201524798922
[differentiation of vegetation characteristics on slope micro-topography of fenced watershed in loess area of north shaanxi province, northwest china].based on the investigation data of the vegetations in hegou valley in wuqi county of shaanxi province, this paper studied the vegetation characteristics on the five typical micro-topography categories including shallow gully, gully, collapse, platform, and scarp in the loess area of north shaanxi, with the undisturbed slope as the control. there existed distinct differences in the species composition, quantitative characteristics, and species diversity of plant communities on the five typical mi ...201222720613
monitoring and assessment of heavy metal contamination in a constructed wetland in shaoguan (guangdong province, china): bioaccumulation of pb, zn, cu and cd in aquatic and terrestrial components.the objective of this study is to evaluate the current status of heavy metal concentrations in constructed wetland, shaoguan (guangdong, china). sediments, three wetland plants (typha latifolia, phragmites australis, and cyperus malaccensis), and six freshwater fish species [carassius auratus (goldfish), cirrhinus molitorella (mud carp), ctenopharyngodon idellus (grass carp), cyprinus carpio (wild common carp), nicholsicypris normalis (mandarin fish), sarcocheilichthys kiangsiensis (minnows)] in ...201727164879
copper tolerance of the biomass crops elephant grass (pennisetum purpureum schumach), vetiver grass (vetiveria zizanioides) and the upland reed (phragmites australis) in soil culture.pot trials were conducted to study the influence of copper (cu) on the growth and biomass of elephant grass (eg, pennisetum purpureum schumach), vetiver grass (vg, vetiveria zizanioides) and the upland reed (ur, phragmites australis). cu toxicity in eg, vg and ur was positively correlated with the total and bioavailable cu concentrations in the soil. based on the ec50, dry weights, cu contents, chlorophyll contents and photosynthesis rates, the cu tolerance of the three species followed the tren ...201619393734
arbuscular mycorrhizal fungal mediation of plant-plant interactions in a marshland plant community.obligate aerobic amf taxa have high species richness under waterlogged conditions, but their ecological role remains unclear. here we focused on am fungal mediation of plant interactions in a marshland plant community. five cooccurring plant species were chosen for a neighbor removal experiment in which benomyl was used to suppress amf colonization. a phragmites australis removal experiment was also performed to study its role in promoting amf colonization by increasing rhizosphere oxygen concen ...201424693254
screening of 18 species for digestate phytodepuration.this experiment assesses the aptitude of 18 species in treating the digestate liquid fraction (dlf) in a floating wetland treatment system. the pilot system was created in ne italy in 2010 and consists of a surface-flow system with 180 floating elements (tech-ia®) vegetated with ten halophytes and eight other wetland species. the species were transplanted in july 2011 in basins filled with different proportions of dlf/water (dlf/w); periodic increasing of the dlf/w ratio was imposed after transp ...201525005162
differing daphnia magna assimilation efficiencies for terrestrial, bacterial, and algal carbon and fatty acids.there is considerable interest in the pathways by which carbon and growth-limiting elemental and biochemical nutrients are supplied to upper trophic levels. fatty acids and sterols are among the most important molecules transferred across the plant-animal interface of food webs. in lake ecosystems, in addition to phytoplankton, bacteria and terrestrial organic matter are potential trophic resources for zooplankton, especially in those receiving high terrestrial organic matter inputs. we therefor ...201424669748
bpa and np removal from municipal wastewater by tropical horizontal subsurface constructed has been recognized that numerous synthetic compounds like bisphenol a (bpa) and nonylphenols (np) are present in effluents from wastewater treatment plants (wwtp) at levels of parts per billion (μg l(-1)) or even parts per trillion (ng l(-1)) with a high potential to cause endocrine disruption in the aquatic environment. constructed wetlands (cw) are a cost-effective wastewater treatment alternative with promising performance to treat these afore mentioned compounds. this research was aimed ...201626519570
fungal planet description sheets: 281-319.novel species of fungi described in the present study include the following from south africa: alanphillipsia aloeicola from aloe sp., arxiella dolichandrae from dolichandra unguiscati, ganoderma austroafricanum from jacaranda mimosifolia, phacidiella podocarpi and phaeosphaeria podocarpi from podocarpus latifolius, phyllosticta mimusopisicola from mimusops zeyheri and sphaerulina pelargonii from pelargonium sp. furthermore, barssia maroccana is described from cedrus atlantica (morocco), codinae ...201425737601
susceptibility of riparian wetland plants to perfluorooctanoic acid (pfoa) plants have been shown to accumulate organic compounds from contaminated sediments, there is a potential for long-lasting ecological impact as a result of contaminant accumulation in riparian areas of wetlands, particularly the accumulation of non-biodegradable contaminants such as perfluorooctanoic acid (pfoa). in this study, commonly found riparian wetland plants including reeds, i.e., xanthium strumarium, phragmites australis, schoenoplectus corymbosus, ruppia maritime; populus canescens, ...201424933893
tidal flushing restores the physiological condition of fish residing in degraded salt marshes.roads, bridges, and dikes constructed across salt marshes can restrict tidal flow, degrade habitat quality for nekton, and facilitate invasion by non-native plants including phragmites australis. introduced p. australis contributes to marsh accretion and eliminates marsh surface pools thereby adversely affecting fish by reducing access to intertidal habitats essential for feeding, reproduction, and refuge. our study assessed the condition of resident fish populations (fundulus heteroclitus) at f ...201223029423
abundance and diversity of ammonia-oxidizing archaea and bacteria in the rhizosphere soil of three plants in the ebinur lake wetland.ammonia oxidation is carried out by ammonia oxidizing bacteria (aob) and ammonia oxidizing archaea (aoa). the ebinur lake wetland is the best example of a temperate arid zone wetland ecosystem in china. soil samples were collected from rhizosphere and non-rhizosphere soil containing halocnemum strobilaceum (h and h'), phragmites australis (r and r'), and kareliniacaspia (k and k') to study the relationship between environmental factors and the community structure of aob and aoa. phylogenetic ana ...201728249125
geographic variation in apparent competition between native and invasive phragmites australis.apparent competition, the negative interaction between species mediated by shared natural enemies, is thought to play an important role in shaping the structure and dynamics of natural communities. however, its importance in driving species invasions, and whether the strength of this indirect interaction varies across the latitudinal range of the invasion, has not been fully explored. we performed replicated field experiments at four sites spanning 900 km along the atlantic coast of the united s ...201727861789
third report of allochaetophoridae reck, 1959 (acari: trombidiformes) based on the description of a new species from iran.a new mite species allochaetophora iranica sp. nov. (tetranychoidea: allochaetophoridae), is described and illustrated based on females and deutonymphs collected from phragmites australis (poaceae) in iran (kerman province). this is the third report of the family allochaetophoridae for the world and first report of it from asia.201526623860
isolation and screening of rhizosphere bacteria from grasses in east kavango region of namibia for plant growth promoting characteristics.a diverse group of soil bacteria known as plant growth promoting rhizobacteria (pgpr) is able to inhabit the area close to plant roots and exert beneficial effects on plant growth. beneficial interactions between rhizospheric bacteria and plants provide prospects for isolating culturable pgpr that can be used as bio-fertilizers for sustainable crop production in communities that cannot easily afford chemical fertilizers. this study was conducted with the aim of isolating rhizospheric bacteria fr ...201526254764
effects of organochlorines on microbial diversity and community structure in phragmites australis rhizosphere.this study investigated the impacts of an organochlorine (oc, γ-hexachlorocyclohexane and chlorobenzenes) mixture on microbial communities associated to phragmites australis rhizosphere. seventy-eight distinct colony morphotypes were isolated, cultivated and analysed by 16s rdna sequence analysis. toxicity tests confirmed sensitivity (e.g. hevizibacter, acidovorax) or tolerance (e.g. bacillus, aeromonas, pseudomonas, sphingomonas) of isolates. rhizosphere analysis by pyrosequencing showed the mi ...201424504457
heavy metal bioaccumulation in sediment, common reed, algae, and blood worm from the shoor river, iran.concentrations of 11 metals (cadmium, zinc, copper (cu), vanadium (v), lead, magnesium (mg), manganese, aluminum, iron (fe), chromium (cr), and nickel), and one metalloid (arsenic (as)) were measured in sediment, common reed (phragmites australis), algae (spirogyra sp.), and blood worm (chironomus sp.) tissues of samples collected from the shoor river. samples were dried, acid digested, and the concentrations of metals were measured using inductively coupled plasma-optical emission spectrometer. ...201624105065
sustainable biodegradation of phenolic endocrine-disrupting chemicals by phragmites australis-rhizosphere bacteria association.the efficacy of two rhizobacteria (sphingobium fuliginis tik1 and sphingobium sp. it4) of phragmites australis for the sustainable treatment of water polluted with phenolic endocrine-disrupting chemicals (edcs) was investigated. strains tik1 and it4 have recently been isolated from phragmites rhizosphere and shown to degrade various 4-alkylphenols-tik1 via phenolic ring hydroxylation and meta-cleavage and it4 via ipso-hydroxylation. the two strains also degraded bisphenol a (bpa), bisphenol b, b ...201323925178
genome sequence of herbaspirillum sp. strain gw103, a plant growth-promoting bacterium.herbaspirillum sp. strain gw103 was isolated from rhizosphere soil of the reed phragmites australis on reclaimed land. here we report the 5.05-mb draft genome sequence of the strain, providing bioinformation about the agronomic benefits of this strain, such as multiple traits relevant to plant root colonization and plant growth promotion.201222815460
simultaneous laccase production and color removal by culturing fungus pycnoporus sp. sybc-l3 in a textile wastewater effluent supplemented with a lignocellulosic waste phragmites australis.we conducted experiments to culture pycnoporus sp. sybc-l3 in a medium comprising an industrial waste (dye-containing textile effluent) and a lignocellulosic waste (phragmites australis) that achieved laccase production while having the color removed from the wastewater. our experimental results showed that the fungus grew well in liquid submerged cultivation with the diluted textile effluent as the sole culture medium, but relatively low extracellular laccase activity (1.8 u/ml) was produced. a ...201222617946
armatimonas rosea gen. nov., sp. nov., of a novel bacterial phylum, armatimonadetes phyl. nov., formally called the candidate phylum op10.a novel aerobic, chemoheterotrophic bacterium, strain yo-36(t), isolated from the rhizoplane of an aquatic plant (a reed, phragmites australis) inhabiting a freshwater lake in japan, was morphologically, physiologically and phylogenetically characterized. strain yo-36(t) was gram-negative and ovoid to rod-shaped, and formed pinkish hard colonies on agar plates. strain yo-36(t) grew at 20-40 °c with optimum growth at 30-35 °c, whilst no growth was observed at 15 °c or 45 °c. the ph range for grow ...201120622056
mycoparasitism of endophytic fungi isolated from reed on soilborne phytopathogenic fungi and production of cell wall-degrading enzymes in vitro.antagonism of three endophytic fungi isolated from common reed (phragmites australis) against eight soilborne pathogenic fungi was investigated on potato dextrose agar by light microscopy, scanning electron microscopy, and transmission electron microscopy. inhibitory zones were not observed. the microscopical studies suggested that the endophytes inhibit growth of soilborne pathogens by means of coiling around hyphae and, after penetration, the degradation of hyphal cytoplasm. since penetration ...200919705202
diversity, host, and habitat specificity of oomycete communities in declining reed stands (phragmites australis) of a large freshwater lake.we studied the diversity of oomycetes in a declining reed belt (phragmites australis) of lake constance, germany, using conventional baiting with specific reed and standard oak baits, accompanied by molecular techniques. apart from an aphanomyces sp. and a phytophthora sp., baiting from reed rhizosphere samples from flooded, as well as drier, littoral sites revealed only pythium spp. a total of 67 oomycete isolates was classified according to pcr-rflp banding patterns and its sequencing, and 18 ...200818455383
extra-intestinal localization of goussia sp. (apicomplexa) oocysts in rana dalmatina (anura: ranidae), and the fate of infection after metamorphosis.although coccidia of the genus goussia are common parasites of fish, only 2 species have been described in amphibians: g. hyperolisi from common reed frogs hyperolius viridiflavus from kenya and g. neglecta from unspecified european water frogs of the genus rana from germany. the genus goussia is characterized by an oocyst, with a fine oocyst wall, containing 4 dizoic sporocysts that are composed of 2 valves joined by a longitudinal suture and lacking a stieda body (typical for the genus eimeria ...200616903235
pythium litorale sp. nov., a new species from the littoral of lake constance, germany.a description is given of pythium litorale sp. nov., a new species from reed stands in germany. pythium litorale was among the most abundant species when the oomycete community of littoral soils of lake constance was studied. it was consistently isolated from flooded as well as from drier reed sites. the species is characterized by subglobose, papillate and internally proliferating sporangia, globose hyphal swellings, the absence of oogonia in single culture and a high optimum growth temperature ...200616436067
pythium phragmitis sp. nov., a new species close to p. arrhenomanes as a pathogen of common reed (phragmites australis).during a study on the occurrence and pathogenicity of oomycetes in the reed-belt (phragmites australis) of lake constance (germany), a new pythium resembling the important cereal pathogen species complex p. arrhenomanes/p. graminicola was consistently isolated from necrotic mature reed leaves and reed rhizosphere samples. the new species proved to be significantly more aggressive towards reed leaves and seedlings in vitro than related species. it is characterised by filamentous, inflated sporang ...200516353634
effect of design parameters in horizontal flow constructed wetland on the behaviour of volatile fatty acids and volatile alkylsulfides.a pilot-scale horizontal flow constructed wetland (hfcw) system planted with common reed (phragmites sp.) was constructed to study how hydraulic loading rate (hlr), aspect ratio, water depth, and granular medium affect to the fate of several organic matter degradation intermediates namely, acetic acid (hac), isovaleric acid (isoval), and dimethylsulfide (dms). anova statistical analysis performed on the data set of 8 months of operation shows that the hlr and the water depth are two major factor ...200515811405
endophytic fungal mutualists: seed-borne stagonospora spp. enhance reed biomass production in axenic microcosms.fungal endophytes mainly belong to the phylum ascomycota and colonize plants without producing symptoms. we report on the isolation of seed-borne fungal endophytes from phragmites australis (common reed) that were ascribed to the genus stagonospora. nested polymerase chain reaction (pcr) assays revealed that a stagonospora sp. regularly colonized reed as shown for a period of three years. in spring, it was only detected in roots, whereas in autumn, it could frequently be found in all organs, inc ...200312848423
four or more species of cladosporium sympatrically colonize phragmites australis.a collection of cladosporium has been recovered from common reed growing at lake constance (germany). high-resolution cryo-scanning electron microscopy revealed that cladosporium isolates from reed are diverse. morphologically, we distinguished three species, viz. c. herbarum, c. oxysporum, and cladosporium sp. internal transcribed spacer (its) sequence analysis supported these results and, moreover, separated the most common species, c. oxysporum, into two subclades. two additional phylogenies ...200211848674
Displaying items 201 - 237 of 237