keyword
MENU ▼
Read by QxMD icon Read
search

Ascomycota

keyword
https://www.readbyqxmd.com/read/28822942/differential-responses-of-soil-microbial-biomass-diversity-and-compositions-to-altitudinal-gradients-depend-on-plant-and-soil-characteristics
#1
Chengjie Ren, Wei Zhang, ZeKun Zhong, Xinhui Han, Gaihe Yang, Yongzhong Feng, Guangxin Ren
Alt'itudinal gradients strongly affect plant biodiversity, but the effects on microbial patterns remain unclear, especially in the large scale. We therefore designed an altitudinal gradient experiment that covered three climate zones to monitor soil microbial community dynamics and to compare those with plant and soil characteristics. Illumina sequencing of the 16S rRNA gene and ITS gene was used to analyze soil microbial (bacterial and fungal) diversity and composition, and fumigation-extraction was used to determine microbial biomass; the plant community metrics (i...
August 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28821976/dysbiosis-signature-of-mycobiota-in-colon-polyp-and-colorectal-cancer
#2
R Gao, C Kong, H Li, L Huang, X Qu, N Qin, H Qin
Microbiota refers to a colony of microorganisms, and they are found in all multicellular organisms. This colony plays a major role in both the physiology and disease of the organism it inhabits. Much attention has been paid to host-microbiota interactions, but there has been little investigation on its role in carcinogenesis. In this study, we characterized a fecal mycobiota, also known as fungal signature, for the first time with 131 subjects, comprising polyp and colorectal cancer (CRC) patients, as well as a healthy control population...
August 18, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28819272/rapid-peat-accumulation-favours-the-occurrence-of-both-fen-and-bog-microbial-communities-within-a-mediterranean-free-floating-peat-island
#3
Giuseppe Concheri, Piergiorgio Stevanato, Claudio Zaccone, William Shotyk, Valeria D'Orazio, Teodoro Miano, Pietro Piffanelli, Valeria Rizzi, Chiara Ferrandi, Andrea Squartini
The unique environment of a 4m-thick, free-floating peat island within the Posta Fibreno lake (Central Italy) was analyzed using DNA-based techniques to assess bacterial and fungal community members identity and abundance. Two depths were sampled at 41 and 279 cm from the surface, the former corresponding to an emerged portion of Sphagnum residues accumulated less than 30 yrs ago, and the latter mainly consisting of silty peat belonging to the deeply submerged part of the island, dating back to 1520-1660 AD...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28814777/the-microbial-ecosystem-distinguishes-chronically-diseased-tissue-from-adjacent-tissue-in-the-sigmoid-colon-of-chronic-recurrent-diverticulitis-patients
#4
Kathleen M Schieffer, Kate Sabey, Justin R Wright, David R Toole, Rebecca Drucker, Vasily Tokarev, Leonard R Harris, Sue Deiling, Melanie A Eshelman, John P Hegarty, Gregory S Yochum, Walter A Koltun, Regina Lamendella, David B Stewart
Diverticular disease is commonly associated with the older population in the United States. As individual's age, diverticulae, or herniation of the mucosa through the colonic wall, develop. In 10-25% of individuals, the diverticulae become inflamed, resulting in diverticulitis. The gut ecosystem relies on the interaction of bacteria and fungi to maintain homeostasis. Although bacterial dysbiosis has been implicated in the pathogenesis of diverticulitis, associations between the microbial ecosystem and diverticulitis remain largely unstudied...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811531/the-selective-antifungal-activity-of-drosophila-melanogaster-metchnikowin-reflects-the-species-dependent-inhibition-of-succinate-coenzyme-q-reductase
#5
Mohammad-Reza Bolouri Moghaddam, Thomas Gross, Annette Becker, Andreas Vilcinskas, Mohammad Rahnamaeian
Insect-derived antifungal peptides have a significant economic potential, particularly for the engineering of pathogen-resistant crops. However, the nonspecific antifungal activity of such peptides could result in detrimental effects against beneficial fungi, whose interactions with plants promote growth or increase resistance against biotic and abiotic stress. The antifungal peptide metchnikowin (Mtk) from Drosophila melanogaster acts selectively against pathogenic Ascomycota, including Fusarium graminearum, without affecting Basidiomycota such as the beneficial symbiont Piriformospora indica...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28805294/microplastics-alter-composition-of-fungal-communities-in-aquatic-ecosystems
#6
Marie Therese Kettner, Keilor Rojas-Jimenez, Sonja Oberbeckmann, Matthias Labrenz, Hans-Peter Grossart
Despite increasing concerns about microplastic (MP) pollution in aquatic ecosystems, there is insufficient knowledge on how MP affect fungal communities. In this study, we explored the diversity and community composition of fungi attached to polyethylene (PE) and polystyrene (PS) particles incubated in different aquatic systems in north-east Germany: the Baltic Sea, the River Warnow and a wastewater treatment plant. Based on next generation 18S rRNA gene sequencing, 347 different operational taxonomic units assigned to 81 fungal taxa were identified on PE and PS...
August 14, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28803260/microbial-volatile-compounds-alter-the-soil-microbial-community
#7
Jun Yuan, Mengli Zhao, Rong Li, Qiwei Huang, Waseem Raza, Christopher Rensing, Qirong Shen
Volatile organic compounds (VOCs) from soil bacteria are likely to have an important role in the interactions among soil microorganisms. However, their effects on the soil microbial community have not been extensively studied. In this study, the effect of bacterial VOCs generated by growing Bacillus amyloliquefaciens NJN-6 on modified MS medium on soil microbial community was evaluated. B. amyloliquefaciens NJN-6 was able to produce 48 volatile compounds as determined by solid-phase microextraction-GC/MS. MiSeq sequencing data showed that bacterial VOCs could alter the composition of both soil bacterial and soil fungal communities and could decrease the alpha-diversity of the soil microbial community...
August 12, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28802018/characterization-of-two-catalase-peroxidase-encoding-genes-in-fusarium-verticillioides-reveals-differential-responses-to-in-vitro-versus-in-planta-oxidative-challenges
#8
Shan Gao, Scott E Gold, Anthony E Glenn
Catalase/peroxidases (KatGs) are a superfamily of reactive oxygen species (ROS)-degrading enzymes believed to be horizontally acquired by ancient Ascomycota from bacteria. Subsequent gene duplication resulted in two KatG paralogs in ascomycetes: the widely distributed intracellular KatG1 group, and the phytopathogen-dominated extracellular KatG2 group. To functionally characterize FvCP01 (KatG1) and FvCP02 (KatG2) in the maize pathogen Fusarium verticillioides, single and double gene deletion mutants were examined in response to hydrogen peroxide (H2 O2 )...
August 12, 2017: Molecular Plant Pathology
https://www.readbyqxmd.com/read/28798740/smrt-sequencing-revealed-mitogenome-characteristics-and-mitogenome-wide-dna-modification-pattern-in-ophiocordyceps-sinensis
#9
Xincong Kang, Liqin Hu, Pengyuan Shen, Rui Li, Dongbo Liu
Single molecule, real-time (SMRT) sequencing was used to characterize mitochondrial (mt) genome of Ophiocordyceps sinensis and to analyze the mt genome-wide pattern of epigenetic DNA modification. The complete mt genome of O. sinensis, with a size of 157,539 bp, is the fourth largest Ascomycota mt genome sequenced to date. It contained 14 conserved protein-coding genes (PCGs), 1 intronic protein rps3, 27 tRNAs and 2 rRNA subunits, which are common characteristics of the known mt genomes in Hypocreales. A phylogenetic tree inferred from 14 PCGs in Pezizomycotina fungi supports O...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28783439/mucorales-spores-induce-a-proinflammatory-cytokine-response-in-human-mononuclear-phagocytes-and-harbor-no-rodlet-hydrophobins
#10
Sebastian Wurster, Vanessa Thielen, Philipp Weis, Paul Walther, Johannes Elias, Ana Maria Waaga-Gasser, Mariola Dragan, Thomas Dandekar, Hermann Einsele, Jürgen Löffler, Andrew J Ullmann
Mucormycoses are life-threatening infections in immunocompromised patients. This study characterizes the response of human mononuclear cells to different Mucorales and Ascomycota. PBMC, monocytes, and monocyte derived dendritic cells (moDCs) from healthy donors were stimulated with resting and germinated stages of Mucorales and Ascomycota. Cytokine response and expression of activation markers were studied. Both inactivated germ tubes and resting spores of Rhizopus arrhizus and other human pathogenic Mucorales species significantly stimulated mRNA synthesis and secretion of proinflammatory cytokines...
August 7, 2017: Virulence
https://www.readbyqxmd.com/read/28775314/two-new-species-of-endocarpon-verrucariaceae-ascomycota-from-china
#11
Tao Zhang, Meng Liu, Yan-Yan Wang, Zhi-Jun Wang, Xin-Li Wei, Jiang-Chun Wei
Endocarpon species are key components of biological soil crusts. Phenotypic and systematic molecular analyses were carried out to identify samples of Endocarpon collected from the southeast edge of the Tengger Desert in China. These morphological and molecular analyses revealed two previously undescribed species that form highly supported independent monophyletic clades within Endocarpon. The new taxa were named Endocarpon deserticola sp. nov. and E. unifoliatum sp. nov. Furthermore, our results indicated that the newly developed protein coding markers adenylate kinase (ADK) and ubiquitin-conjugating enzyme h (UCEH) are useful for assessing species boundaries in phylogenic analyses...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28772192/in-situ-mass-spectrometry-monitoring-of-fungal-cultures-led-to-the-identification-of-four-peptaibols-with-a-rare-threonine-residue
#12
Vincent P Sica, Evan R Rees, Huzefa A Raja, José Rivera-Chávez, Joanna E Burdette, Cedric J Pearce, Nicholas H Oberlies
Peptaibols are an intriguing class of fungal metabolites due both to their wide range of reported bioactivities and to the structural variability that can be generated by the exchange of variable amino acid building blocks. In an effort to streamline the discovery of structurally diverse peptaibols, a mass spectrometry surface sampling technique was applied to screen the chemistry of fungal cultures in situ. Four previously undescribed peptaibols, all containing a rare threonine residue, were identified from a fungal culture (MSX53554), which was identified as Nectriopsis Maire (Bionectriaceae, Hypocreales, Ascomycota)...
July 31, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28751879/carbon-nitrogen-phosphorus-stoichiometry-in-fungi-a-meta-analysis
#13
Ji Zhang, James J Elser
Surveys of carbon:nitrogen:phosphorus ratios are available now for major groups of biota and for various aquatic and terrestrial biomes. However, while fungi play an important role in nutrient cycling in ecosystems, relatively little is known about their C:N:P stoichiometry and how it varies across taxonomic groups, functional guilds, and environmental conditions. Here we present the first systematic compilation of C:N:P data for fungi including four phyla (Ascomycota, Basidiomycota, Glomeromycota, and Zygomycota)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28747259/effects-of-biochar-amendment-on-bacterial-and-fungal-diversity-for-co-composting-of-gelatin-industry-sludge-mixed-with-organic-fraction-of-municipal-solid-waste
#14
Mukesh Kumar Awasthi, Jiao Li, Sunil Kumar, Sanjeev Kumar Awasthi, Quan Wang, Hongyu Chen, Meijing Wang, Xiuna Ren, Zengqiang Zhang
The aim of the study was to evaluate the bacterial and fungal diversities of 18contrastivecomposts applied with 17 different sources mad biochars applied treatments using 16S rRNA and 18S rDNA technology, while T-1 used as a control. The results showed that bacterial species of the phyla Actinobacteria, Proteobacteria and Chloroflexi, and fungi of the phylum Ascomycota and Basidiomycota were pre-dominant among the all treatments. The bacterial genus Subgroup_6_norank, Nocardioides, Pseudonocardia, Sphingomonas, Solirubrobacter and RB41_norank are first time identified in composting ecosystem...
July 14, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28741152/evaluation-of-probiotic-diversity-from-soybean-glycine-max-seeds-and-sprouts-using-illumina-based-sequencing-method
#15
Yali Huang, Miaomiao Zhang, Zujun Deng, Lixiang Cao
There is increasing interest in the use of plant probiotics as environmental-friendly and healthy biofertilizers. The study aimed at selecting for novel probiotic candidates of soybean (Glycine max). The bacteriome and mycobiome of soybean sprouts and seeds were analyzed by Illumina-based sequencing. Seeds contained more diverse bacteria than those in sprouts. The seeds contained similar fungal diversity with sprouts. Total 15 bacterial OTUs and 4 fungal OTUs were detected in seeds and sprouts simultaneously, suggesting that the sprouts contained bacterial and fungal taxa transmitted from seeds...
July 24, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28735325/characterization-of-endolithic-culturable-microbial-communities-in-carbonate-rocks-from-a-typical-karst-canyon-in-guizhou-china
#16
Yuan Tang, Jian-Zhong Cheng, Bin Lian
The endolithic environment is a ubiquitous habitat for microorganisms and a critical interface between biology and geology. In this study, a culture-based method and the phylogenetic analysis based on 16S rRNA and internal transcribed spacer (ITS) sequences were used to investigate the diversity of endolithic bacteria and fungi in two main types of carbonate rocks (namely dolomite and limestone) from Nanjiang Canyon in Guizhou karst area, China. The results of bacterial diversity indicated that all bacteria isolated from dolomite and limestone rocks were divided into 4 bacterial groups, including Proteobacteria, Actinobacteria, Firmicutes and Bacteroidetes...
January 2, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/28733288/bacillomycin-d-produced-by-bacillus-amyloliquefaciens-is-involved-in-the-antagonistic-interaction-with-the-plant-pathogenic-fungus-fusarium-graminearum
#17
Qin Gu, Yang Yang, Qiming Yuan, Guangming Shi, Liming Wu, Zhiying Lou, Rong Huo, Huijun Wu, Rainer Borriss, Xuewen Gao
Fusarium graminearum (teleomorph: Ascomycota, Hypocreales, Gibberella, Gibberella zeae) is a destructive fungal pathogen that threatens the production and quality of wheat and barley worldwide. Controlling this toxin-producing pathogen is a significant challenge. In the present study, the commercially available strain Bacillus amyloliquefaciens (Bacteria, Firmicutes, Bacillales, Bacillus) FZB42 showed strong activity against F. graminearum The lipopeptide, bacillomycin D, produced by FZB42, was proven to contribute to the antifungal activity...
July 21, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28726124/diversity-of-culturable-filamentous-ascomycetes-in-the-eastern-south-pacific-ocean-off-chile
#18
Jeanett Vera, Marcelo H Gutiérrez, Götz Palfner, Silvio Pantoja
Our study reports the diversity of culturable mycoplankton in the eastern South Pacific Ocean off Chile to contribute with novel knowledge on taxonomy of filamentous fungi isolated from distinct physicochemical and biological marine environments. We characterized spatial distribution of isolates, evaluated their viability and assessed the influence of organic substrate availability on fungal development. Thirty-nine Operational Taxonomic Units were identified from 99 fungal strains isolated from coastal and oceanic waters by using Automatic Barcode Gap Discovery...
August 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28701877/endophytic-fungi-harbored-in-panax-notoginseng-diversity-and-potential-as-biological-control-agents-against-host-plant-pathogens-of%C3%A2-root-rot-disease
#19
You-Kun Zheng, Cui-Ping Miao, Hua-Hong Chen, Fang-Fang Huang, Yu-Mei Xia, You-Wei Chen, Li-Xing Zhao
BACKGROUND: Endophytic fungi play an important role in balancing the ecosystem and boosting host growth. In the present study, we investigated the endophytic fungal diversity of healthy Panax notoginseng and evaluated its potential antimicrobial activity against five major phytopathogens causing root-rot of P. notoginseng. METHODS: A culture-dependent technique, combining morphological and molecular methods, was used to analyze endophytic fungal diversity. A double-layer agar technique was used to challenge the phytopathogens of P...
July 2017: Journal of Ginseng Research
https://www.readbyqxmd.com/read/28700682/circumscription-of-the-genus-lepra-a-recently-resurrected-genus-to-accommodate-the-variolaria-group-of-pertusaria-sensu-lato-pertusariales-ascomycota
#20
Xinli Wei, Imke Schmitt, Brendan Hodkinson, Adam Flakus, Martin Kukwa, Pradeep K Divakar, Paul M Kirika, Jürgen Otte, Anjuli Meiser, H Thorsten Lumbsch
Pertusarialean lichens include more than 300 species belonging to several independent phylogenetic lineages. Only some of these phylogenetic clades have been comprehensively sampled for molecular data, and formally described as genera. Here we present a taxonomic treatment of a group of pertusarialean lichens formerly known as "Pertusaria amara-group", "Monomurata-group", or "Variolaria-group", which includes widespread and well-known taxa such as P. amara, P. albescens, or P. ophthalmiza. We generated a 6-locus data set with 79 OTUs representing 75 species...
2017: PloS One
keyword
keyword
8587
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"