Mycology最新文献_第10页

Dual identities for various alcohols in two different yeasts. 两种不同酵母中不同醇的双重特性。

IF 4.2 2区生物学

Mycology Pub Date : 2020-12-07 DOI: 10.1080/21501203.2020.1837976

Nitin Mahendra Chauhan, S Mohan Karuppayil

{"title":"Dual identities for various alcohols in two different yeasts.","authors":"Nitin Mahendra Chauhan, S Mohan Karuppayil","doi":"10.1080/21501203.2020.1837976","DOIUrl":"https://doi.org/10.1080/21501203.2020.1837976","url":null,"abstract":"Most of the yeast bypasses the developmental stage from simple unicellular yeast to elongated structure like hyphae. Regulation of this transition is governed by various quorum sensing and signalling molecules produced under different conditions of growth, that differ significantly, both physiologically and chemically. The evidence of fungal quorum sensing was uncovered ten years ago after the discovery of farnesol as first eukaryotic quorum sensing molecules in Candida albicans. In addition to farnesol, tyrosol was identified as second quorum sensing molecules in C. albicans controlling physiological activities. After the discovery of farnesol and tyrosol, regulation of morphogenesis through the production of chemical signalling molecules such as isoamyl alcohol, 2-phenylethyl alcohol, 1-dodecanol, E-nerolidol, etc. is reported in C. albicans. Some of the evidence suggests that the budding yeast Saccharomyces cerevisiae exhibits this type of regulation and the signals are regulated by aromatic alcohols which are the end product of amino acid metabolism. The effects of these molecules on morphogenesis are not similar in both yeasts, making comparisons hard. It is hypothesized that these signals works in microorganisms to derive a competitive advantage. Here, we present an example for utilization of competitive strategy by C. albicans and S. cerevisiae over other microorganisms.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"12 1","pages":"25-38"},"PeriodicalIF":4.2,"publicationDate":"2020-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21501203.2020.1837976","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25401487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Antioxidant, antimicrobial and neuroprotective effects of Octaviania asterosperma in vitro. 星形屋脊的体外抗氧化、抗菌和神经保护作用。

IF 4.2 2区生物学

Mycology Pub Date : 2020-12-02 DOI: 10.1080/21501203.2020.1816584

Mustafa Sevindik, Hasan Akgul, Zeliha Selamoglu, Nady Braidy

{"title":"Antioxidant, antimicrobial and neuroprotective effects of Octaviania asterosperma in vitro.","authors":"Mustafa Sevindik, Hasan Akgul, Zeliha Selamoglu, Nady Braidy","doi":"10.1080/21501203.2020.1816584","DOIUrl":"https://doi.org/10.1080/21501203.2020.1816584","url":null,"abstract":"Octaviania asterosperma (hypogeous Basidiomycota) We investigated the phenolic composition, and antioxidant, antimicrobial and antigenotoxic effects of methanol extracts of fruiting bodies from Octaviania asterosperma. The total phenolic content (ppm) of O. asterosperma was found to be catechin (54.73 ± 4.68), epicatechin (123.90 ± 8.52), caffeic acid (4.23 ± 0.97), p-hydroxybenzoic acid (37.72 ± 3.84), cinnamic acid (58.07 ± 5.40), gallic acid (56.64 ± 6.39), clorogenic acid (80.76 ± 4.92) and coumaric acid (2.45 ± 0.15). The total antioxidant status (TAS), total oxidant status (TOS) and oxidative stress index (OSI) were 3.410 ± 0.099 mmol/L, 7.548 ± 0.147 μmol/L and 0.221 ± 0.005 respectively. O. asterosperma showed some promising antimicrobial activity. The extract showed no genotoxic potential and attenuated hydrogen peroxide (H2O2)-induced oxidative DNA damage in neurons. Pre-treatment with O. asterosperma maintained mitochondrial function, reduced expression levels of cleaved-caspase-3 and apoptosis-inducing factor (AIF) when HT22 cells were exposed to pathophysiological concentrations of GLU (25 mM) and modulated protein kinase B (Akt), the mammalian target of rapamycin (mTOR), and the phosphotase and tensin homolog on chromosome ten (PTEN). O. asterosperma is an important food for the treatment or management of neurodegenerative disorders due to its phenolic content and potent antioxidant and anti-excitotoxic effects.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"12 2","pages":"128-138"},"PeriodicalIF":4.2,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21501203.2020.1816584","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39019210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Enological potential of non-Saccharomyces yeast strains of enological and brewery origin from Ukrainian Collection of Microorganisms. 来自乌克兰微生物收集的酿酒和啤酒来源的非酿酒酵母菌株的酿酒潜力。

IF 4.2 2区生物学

Mycology Pub Date : 2020-11-29 eCollection Date: 2021-01-01 DOI: 10.1080/21501203.2020.1837272

Olga Ianieva, Valentin Podgorsky

{"title":"Enological potential of non-Saccharomyces yeast strains of enological and brewery origin from Ukrainian Collection of Microorganisms.","authors":"Olga Ianieva, Valentin Podgorsky","doi":"10.1080/21501203.2020.1837272","DOIUrl":"https://doi.org/10.1080/21501203.2020.1837272","url":null,"abstract":"Non-conventional wine yeasts are extensively studied as promising producers of hydrolytic enzymes and as potential starter cultures in winemaking due to their ability to improve organoleptic properties of wine. Thirty-six yeast strains of enological and brewery origin from the Ukrainian Collection of Microorganisms belonging to Torulaspora, Kloeckera, Candida, Metschnikowia, Pichia, and Zygosaccharomyces genera have been screened for the production of extracellular hydrolases, stress tolerance, fermentative activity, and other traits of enological interest. This study revealed the high incidence of lipolytic, proteolytic, and β-glucosidase activities among the yeasts, while no pectinase activity was detected. Esterase, cellulase and glucanase activities were found in a small proportion of yeasts (8.33-16.66%). Several Pichia anomala, Kloekera javanica, Pichia membranifaciens, and Metschnikowia pulcherrima strains demonstrated a wide range of hydrolytic activities. High tolerance to stress factors (ethanol, osmotic, and oxidative stress) present during alcoholic fermentation was detected in P. anomala and M. pulcherrima strains. Fermentative activity of several yeast strains was evaluated in microfermentations in a model semi-synthetic medium. Strain P. anomala UCM Y-216 was selected as the most promising culture for winemaking due to its hydrolytic activities, tolerance to stress factors and other valuable metabolic traits. This study represents the first step for selecting a non-conventional yeast strain of enological origin as a potential co-culture for winemaking.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"12 3","pages":"203-215"},"PeriodicalIF":4.2,"publicationDate":"2020-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21501203.2020.1837272","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39440184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Aspergillus niger LBM 134 isolated from rotten wood and its potential cellulolytic ability. 从腐烂木材中分离的黑曲霉LBM 134及其潜在的纤维素分解能力。

IF 4.2 2区生物学

Mycology Pub Date : 2020-09-21 eCollection Date: 2021-01-01 DOI: 10.1080/21501203.2020.1823509

Gabriela Verónica Díaz, Romina Olga Coniglio, Clara Inés Chungara, Pedro Darío Zapata, Laura Lidia Villalba, María Isabel Fonseca

{"title":"Aspergillus niger LBM 134 isolated from rotten wood and its potential cellulolytic ability.","authors":"Gabriela Verónica Díaz, Romina Olga Coniglio, Clara Inés Chungara, Pedro Darío Zapata, Laura Lidia Villalba, María Isabel Fonseca","doi":"10.1080/21501203.2020.1823509","DOIUrl":"https://doi.org/10.1080/21501203.2020.1823509","url":null,"abstract":"Aspergillus is a genus of filamentous and cosmopolitan fungi that includes important species for medical mycology, food, basic research and agro-industry areas. Aspergillus section Nigri are efficient producers of hydrolytic enzymes such as cellulases that are employed in the cellulose conversion. Hence, the search of new cellulolytic isolates and their correct identification is important for carrying out safe biotechnological processes. This study aimed to characterise the cellulolytic potential of Aspergillus sp. LBM 134, isolated from the Paranaense rainforest (Argentina) and to identify the isolate through a polyphasic approach. The fungus was identified as Aspergillus niger and its cellulolytic potential was evaluated by using Congo red technique and fluorescence plate assays for carboxymethyl cellulase, β-glucosidase and cellobiohydrolase, respectively. All three cellulase activities were positive; this bio-prospective positioned A. niger LBM 134 as a promising alternative for industries that require organisms capable of carrying out cellulosic biomass processing.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"12 3","pages":"160-173"},"PeriodicalIF":4.2,"publicationDate":"2020-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21501203.2020.1823509","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39452897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Putative hydrophobins of black poplar mushroom (Agrocybe cylindracea). 黑杨菇的推定疏水酶。

IF 4.2 2区生物学

Mycology Pub Date : 2020-08-31 DOI: 10.1080/21501203.2020.1804474

Chetsada Pothiratana, Wasapon Fuangsawat, Anchalee Jintapattanakit, Churapa Teerapatsakul, Surachai Thachepan

{"title":"Putative hydrophobins of black poplar mushroom (Agrocybe cylindracea).","authors":"Chetsada Pothiratana, Wasapon Fuangsawat, Anchalee Jintapattanakit, Churapa Teerapatsakul, Surachai Thachepan","doi":"10.1080/21501203.2020.1804474","DOIUrl":"https://doi.org/10.1080/21501203.2020.1804474","url":null,"abstract":"Hydrophobin proteins were extracted from Agrocybe cylindracea mycelia, the culture media (potato dextrose broth, PDB), and fruiting bodies. The putative hydrophobins obtained showed approximate sizes ranging from 8.0 to 25.0 kDa, dependent on their source. Multiple hydrophobin protein bands were detected in fruiting bodies. The hydrophobin yielded from aerial mycelia, or fruiting bodies, was approximately 6 mg/g dried weight. The crude extracts were examined for their properties in regards to surface modification, emulsification, and surface activity. Coating of hydrophobic Teflon sheet with crude extract made the surface significantly hydrophilic, whereas exposure of glass surfaces to extracts resulted in enhanced hydrophobicity. Crude extracts from culture media of A. cylindracea displayed emulsifying activity when mixed with hexane and could significantly reduce the surface tension of 60% ethanol and deionised water. The putative hydrophobin protein band from culture media (9.6 kDa), as analysed using LC-MS/MS, contained an amino acid fragment structurally similar to class I hydrophobin proteins from Basidiomycetes.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"12 1","pages":"58-67"},"PeriodicalIF":4.2,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21501203.2020.1804474","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25402479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Correction. 修正。

IF 4.2 2区生物学

Mycology Pub Date : 2020-08-26 eCollection Date: 2021-01-01 DOI: 10.1080/21501203.2020.1808288

引用次数: 0

Lignocellulose hydrolytic enzymes production by Aspergillus flavus KUB2 using submerged fermentation of sugarcane bagasse waste. 黄曲霉KUB2深层发酵蔗渣废液生产木质纤维素水解酶。

IF 4.2 2区生物学

Mycology Pub Date : 2020-08-18 DOI: 10.1080/21501203.2020.1806938

Nattida Namnuch, Anon Thammasittirong, Sutticha Na-Ranong Thammasittirong

{"title":"Lignocellulose hydrolytic enzymes production by Aspergillus flavus KUB2 using submerged fermentation of sugarcane bagasse waste.","authors":"Nattida Namnuch, Anon Thammasittirong, Sutticha Na-Ranong Thammasittirong","doi":"10.1080/21501203.2020.1806938","DOIUrl":"https://doi.org/10.1080/21501203.2020.1806938","url":null,"abstract":"Lignocellulosic wastes, rice straw, sugarcane bagasse, rice bran and sawdust, and pure commercial carboxymethyl cellulose (CMC) and xylan were used as substrates to cultivate cellulolytic fungus, Aspergillus flavus KUB2, in submerged fermentation at 30°C. Of all the substrates, sugarcane bagasse was a good source for the production of cellulolytic and also hemicellulolytic enzymes. The maximum activities of endoglucanase (CMCase), total cellulase (FPase) and xylanase using sugarcane bagasse as substrate were 8%, 75% and 165%, respectively, higher than those of the commercial substrates. The time course determination of enzyme production revealed that the highest CMCase (1.27 U/ml), FPase (0.72 U/ml) and xylanase (376.81 U/ml) activities were observed at 14 days of fermentation. Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) analyses confirmed the efficient structural alteration of sugarcane bagasse caused by enzymatic actions during A. flavus KUB2 cultivation. Based on the results of the hydrolytic enzyme activities, FTIR and SEM, A. flavus KUB2 is suggested as an efficient hydrolytic enzymes producer and an effective lignocellulose degrader, while sugarcane bagasse can be applied as a low-cost carbon source for the economical production of lignocellulose hydrolytic enzymes by A. flavus KUB2.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"12 2","pages":"119-127"},"PeriodicalIF":4.2,"publicationDate":"2020-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21501203.2020.1806938","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39009590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 35

Novel species of Pestalotiopsis fungi on Dracaena from Thailand. 标题泰国龙果上拟盘多毛孢真菌新种。

IF 4.2 2区生物学

Mycology Pub Date : 2020-08-18 DOI: 10.1080/21501203.2020.1801873

Napalai Chaiwan, Dhanushka N Wanasinghe, Ausana Mapook, Ruvishika S Jayawardena, Chada Norphanphoun, Kevin D Hyde

引用次数: 5

Cryptic fungal diversity revealed in deep-sea sediments associated with whale-fall chemosynthetic ecosystems. 与鲸落化学合成生态系统相关的深海沉积物中隐藏真菌多样性的揭示。

IF 4.2 2区生物学

Mycology Pub Date : 2020-08-06 DOI: 10.1080/21501203.2020.1799879

Yuriko Nagano, Toshiko Miura, Taishi Tsubouchi, Andre O Lima, Masaru Kawato, Yoshihiro Fujiwara, Katsunori Fujikura

{"title":"Cryptic fungal diversity revealed in deep-sea sediments associated with whale-fall chemosynthetic ecosystems.","authors":"Yuriko Nagano, Toshiko Miura, Taishi Tsubouchi, Andre O Lima, Masaru Kawato, Yoshihiro Fujiwara, Katsunori Fujikura","doi":"10.1080/21501203.2020.1799879","DOIUrl":"https://doi.org/10.1080/21501203.2020.1799879","url":null,"abstract":"In this study, sediments from whale-fall chemosynthetic ecosystems (two different sites, one naturally occurring at 4200 m water depth in South Atlantic Ocean and one artificially immersed at 100 m water depth in Kagoshima Bay, Japan) were investigated by Ion Torrent PGM sequencing of the ITS region of ribosomal RNA to reveal fungal communities in these unique marine environments. As a result, a total of 107 (897 including singletons) Operational Taxonomic Units (OTUs) were obtained from the samples explored. Composition of the 107 OTUs at the phylum level among the five samples from two different whale-fall sites was assigned to Ascomycota (46%), Basidiomycota (7%), unidentified fungi (21%), non-fungi (10%), and sequences with no affiliation to any organisms in the public database (No-match) (16%). The high detection of the unidentified fungi and unassigned fungi was revealed in the whale-fall environments in this study. Some of these unidentified fungi are allied to early diverging fungi and they were more abundant in the sediments not directly in contact with whalebone. This study suggests that a cryptic fungal community exists in unique whale-fall ecosystems.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"11 3","pages":"263-278"},"PeriodicalIF":4.2,"publicationDate":"2020-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21501203.2020.1799879","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38493522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Fungal diversity in deep-sea sediments from the Magellan seamounts as revealed by a metabarcoding approach targeting the ITS2 regions. 以 ITS2 区域为目标的代谢编码方法揭示了麦哲伦海隆深海沉积物中真菌的多样性。

IF 4.2 2区生物学

Mycology Pub Date : 2020-08-02 DOI: 10.1080/21501203.2020.1799878

Ye Luo, Xu Wei, Shuai Yang, Yuan-Hao Gao, Zhu-Hua Luo

{"title":"Fungal diversity in deep-sea sediments from the Magellan seamounts as revealed by a metabarcoding approach targeting the ITS2 regions.","authors":"Ye Luo, Xu Wei, Shuai Yang, Yuan-Hao Gao, Zhu-Hua Luo","doi":"10.1080/21501203.2020.1799878","DOIUrl":"10.1080/21501203.2020.1799878","url":null,"abstract":"Recent reports have revealed diverse and abundant fungal communities in the deep-sea biosphere, while their composition, distribution, and variations in seamount zones are poorly understood. Using a metabarcoding approach targeting the ITS2 regions, we present the structure of the fungal community in 18 sediment samples from the Magellan seamount area of the northwest Pacific. A total of 1,979 fungal OTUs was obtained, which were taxonomically assigned to seven phyla, 17 classes, 43 orders, 7 families, and 98 genera. The majority of these OTUs were affiliated to Basidiomycota (873 OTUs, 44.11% of total OTUs) and Ascomycota (486 OTUs, 24.56% of total OTUs), followed by other five minor phyla (Mortierellomycota, Chytridiomycota, Mucoromycota, Glomeromycota, and Monoblepharidomycota). Sordriomycetes is the most abundant class, followed by Eurotiomycetes, and Dothideomycetes. Five genera were common in most of the samples, including worldwide reported genera Aspergillus, Cladosporium, Fusarium, Chaetomium, and Penicillium. The environmental data we collected (sampling depth, sampling location latitude and longitude, organic carbon content, and organic nitrogen content in the sediment) had no significant influence on the composition and distribution of fungal communities. Our findings provide valuable information for understanding the distribution and potential ecological functions of fungi in the deep-sea sediments of the Magellan seamounts.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"11 3","pages":"214-229"},"PeriodicalIF":4.2,"publicationDate":"2020-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7534268/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38589643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0