Mycology最新文献_第7页

Miracula einbuarlaekurica sp. nov., a new holocarpic endoparasitoid species from pennate freshwater diatoms in Iceland Miracula einbuarlaekurica sp.nov.，来自冰岛三角洲淡水硅藻的一个新的全壳内寄生物种

IF 4.2 2区生物学

Mycology Pub Date : 2021-10-29 DOI: 10.1080/21501203.2021.1980446

A. Buaya, M. Thines

{"title":"Miracula einbuarlaekurica sp. nov., a new holocarpic endoparasitoid species from pennate freshwater diatoms in Iceland","authors":"A. Buaya, M. Thines","doi":"10.1080/21501203.2021.1980446","DOIUrl":"https://doi.org/10.1080/21501203.2021.1980446","url":null,"abstract":"ABSTRACT Holocarpic oomycetes infecting freshwater diatoms are obligate endobiotic parasites reported from a wide range of habitats. So far, the taxonomy of and phylogeny of most species remains unresolved, since most have not been reported throughout the past decades and sequence data are available for only the four species, Aphanomycopsis bacillariacearum, Diatomophthora gillii, Ectrogella bacillariacearum, and the recently-discovered species Miracula moenusica. In the current study, a new freshwater diatom parasite resembling Ectrogella bacillariacearum in the sense of Scherffel was discovered from pennate diatoms (Ulnaria acus, Ulnaria ulna) collected from the small stream Einbúalækur on Víkurskarð, North Iceland and investigated for its life cycle and phylogenetic placement. In contrast to the original description, Scherffel reports an achlya-like spore discharge for Ectrogella bacillariacearum. The phylogenetic reconstruction and morphological characterisation in this study revealed that Scherffel’s E. bacillariacearum is largely unrelated to the epitype of the species and is a member of the early-diverging genus Miracula. Consequently, the new species is described as M. einbuarlaekurica in the present study. This adds a second freshwater member to the genus, demonstrating the high ecological adaptability of the genus, which thrives in both freshwater and marine ecosystems.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"13 1","pages":"153 - 161"},"PeriodicalIF":4.2,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48109686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Biocontrol efficacy of atoxigenic Aspergillus flavus strains against aflatoxin contamination in peanut field in Guangdong province, South China 广东花生黄曲霉毒素污染的生物防治效果

IF 4.2 2区生物学

Mycology Pub Date : 2021-10-06 DOI: 10.1080/21501203.2021.1978573

Firew Tafesse Mamo, Bo Shang, J. N. Selvaraj, Yongquan Zheng, Yang Liu

{"title":"Biocontrol efficacy of atoxigenic Aspergillus flavus strains against aflatoxin contamination in peanut field in Guangdong province, South China","authors":"Firew Tafesse Mamo, Bo Shang, J. N. Selvaraj, Yongquan Zheng, Yang Liu","doi":"10.1080/21501203.2021.1978573","DOIUrl":"https://doi.org/10.1080/21501203.2021.1978573","url":null,"abstract":"ABSTRACT Application of atoxigenic strains of Aspergillus flavusto soils is the most successful aflatoxin biological control approach. The objective of this study was to evaluate the efficacies of native non-aflatoxin producing (atoxigenic) strains as a biocontrol agent in peanut field in China. The competitive atoxigenic A. flavus strains (JS4, SI1and SXN) isolated from different crops, in China were used for field evaluation. The strains applied during the growing season (June – October, 2016) in the field at rate of 25 kg inoculum/hectare. The colonization of these biocontrol agents has been investigated and the population of A. flavus communities in soil were determined. The incidences of toxin producing (toxigenic) A. flavus strains and aflatoxin contamination in peanuts were also determined. Treated plots produced significant reductions in the incidence of toxigenic isolates of A. flavus in soil. However, the total fungal densities were not significantly different (p > 0.05) after treatments. Large percentage of aflatoxin reductions, ranging from 82.8% (SXN) up to 87.2% (JS4) were recorded in treated plots. Generally, the results suggest that the strategy can be used to control aflatoxin contamination and continuous evaluation should be done.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"13 1","pages":"143 - 152"},"PeriodicalIF":4.2,"publicationDate":"2021-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44401890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Correction Notice. 更正通知。

IF 4.2 2区生物学

Mycology Pub Date : 2021-09-22 eCollection Date: 2021-01-01 DOI: 10.1080/21501203.2021.1930912

引用次数: 0

Recent Developments in Industrial Mycozymes: A Current Appraisal 工业真菌酶的最新进展:当前评价

IF 4.2 2区生物学

Mycology Pub Date : 2021-09-16 DOI: 10.1080/21501203.2021.1974111

S. Nath, N. Kango

引用次数: 3

Characterisation of two unique sesquiterpenoids from Trichoderma hypoxylon. 来自次生毛霉的两种独特倍半萜的特性。

IF 4.6 2区生物学

Mycology Pub Date : 2021-08-12 eCollection Date: 2022-01-01 DOI: 10.1080/21501203.2021.1964630

Jinyu Zhang, Wen-Bing Yin

引用次数: 0

Decolourisation of triphenylmethane dyes by biogenically synthesised iron nanoparticles from fungal extract. 真菌提取物生物合成铁纳米颗粒对三苯甲烷染料脱色的研究。

IF 4.2 2区生物学

Mycology Pub Date : 2021-07-17 eCollection Date: 2022-01-01 DOI: 10.1080/21501203.2021.1948928

Simon Schuster, Adeline Su Yien Ting

{"title":"Decolourisation of triphenylmethane dyes by biogenically synthesised iron nanoparticles from fungal extract.","authors":"Simon Schuster, Adeline Su Yien Ting","doi":"10.1080/21501203.2021.1948928","DOIUrl":"https://doi.org/10.1080/21501203.2021.1948928","url":null,"abstract":"In this study, the extract from endophytic Fusarium proliferatum was used to synthesise iron nanoparticles (Fe-NPs). The properties of the biogenically synthesised Fe-NPs were then characterised by field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX) and Fourier transform infrared spectroscopy (FTIR). The efficacy of the synthesised Fe-NPs in decolourizing triphenylmethane dyes was evaluated. Results revealed that fungal extract from F. proliferatum was successfully used to synthesise Fe-NPs. The Fe-NPs produced were 20-50 nm in size, and consist of substantial elemental Fe content (14.83%). The FTIR spectra revealed the presence of amino acids and proteins on the surface of the Fe-NPs, confirming the biogenic synthesis of the Fe-NPs. When tested for decolourisation, the Fe-NPs were most effective in decolourising Methyl Violet (28.9%), followed by Crystal Violet (23.8%) and Malachite Green (18.3%). This study is the first few to report the biogenic synthesis of Fe-NPs using extracts from an endophytic Fusarium species and their corresponding dye decolourisation activities.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"13 1","pages":"56-67"},"PeriodicalIF":4.2,"publicationDate":"2021-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21501203.2021.1948928","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39939497","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: 2

Adhesins in the virulence of opportunistic fungal pathogens of human. 粘附素在人机会真菌致病菌毒力中的作用。

IF 4.2 2区生物学

Mycology Pub Date : 2021-07-05 eCollection Date: 2021-01-01 DOI: 10.1080/21501203.2021.1934176

Amrita Kumari, Ankita H Tripathi, Poonam Gautam, Rekha Gahtori, Amit Pande, Yogendra Singh, Taruna Madan, Santosh K Upadhyay

{"title":"Adhesins in the virulence of opportunistic fungal pathogens of human.","authors":"Amrita Kumari, Ankita H Tripathi, Poonam Gautam, Rekha Gahtori, Amit Pande, Yogendra Singh, Taruna Madan, Santosh K Upadhyay","doi":"10.1080/21501203.2021.1934176","DOIUrl":"https://doi.org/10.1080/21501203.2021.1934176","url":null,"abstract":"Aspergillosis, candidiasis, and cryptococcosis are the most common cause of mycoses-related disease and death among immune-compromised patients. Adhesins are cell-surface exposed proteins or glycoproteins of pathogens that bind to the extracellular matrix (ECM) constituents or mucosal epithelial surfaces of the host cells. The forces of interaction between fungal adhesins and host tissues are accompanied by ligand binding, hydrophobic interactions and protein-protein aggregation. Adherence is the primary and critical step involved in the pathogenesis; however, there is limited information on fungal adhesins compared to that on the bacterial adhesins. Except a few studies based on screening of proteome for adhesin identification, majority are based on characterization of individual adhesins. Recently, based on their characteristic signatures, many putative novel fungal adhesins have been predicted using bioinformatics algorithms. Some of these novel adhesin candidates have been validated by in-vitro studies; though, most of them are yet to be characterised experimentally. Morphotype specific adhesin expression as well as tissue tropism are the crucial determinants for a successful adhesion process. This review presents a comprehensive overview of various studies on fungal adhesins and discusses the targetability of the adhesins and adherence phenomenon, for combating the fungal infection in a preventive or therapeutic mode.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"12 4","pages":"296-324"},"PeriodicalIF":4.2,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21501203.2021.1934176","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39721005","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

Entomopathogenic fungus Akanthomyces muscarius (Hypocreales: Cordycipitaceae) strain IMI 268317 colonises on tomato leaf surface through conidial adhesion and general and microcycle conidiation 昆虫病原真菌Akanthomyces muscarius(下creales: Cordycipitaceae)菌株IMI 268317通过分生孢子粘附和一般和微循环分生作用在番茄叶片表面定植

IF 4.2 2区生物学

Mycology Pub Date : 2021-07-05 DOI: 10.1080/21501203.2021.1944929

Oumi Nishi, Hirotoshi Sushida, Y. Higashi, Y. Iida

{"title":"Entomopathogenic fungus Akanthomyces muscarius (Hypocreales: Cordycipitaceae) strain IMI 268317 colonises on tomato leaf surface through conidial adhesion and general and microcycle conidiation","authors":"Oumi Nishi, Hirotoshi Sushida, Y. Higashi, Y. Iida","doi":"10.1080/21501203.2021.1944929","DOIUrl":"https://doi.org/10.1080/21501203.2021.1944929","url":null,"abstract":"ABSTRACT The entomopathogenic fungus Akanthomyces muscarius strain IMI 268317, previously known as Lecanicilliummuscariumand Verticillium lecanii, is currently used as a microbial insecticide to protect tomatoes from serious leaf-inhabiting pests in greenhouses. However, its persistence on tomato leaves has been unidentified. Understanding the events and processes of phyllosphere colonisation by this strain should help in developing its practical applications. This study assessed the epiphytic abilities of this strain on tomato leaves in humid conditions, simulating closed greenhouse environments. Conidia applied on tomato leaflets strongly adhered 12 h after inoculation. The mucilage-like materials were found around the germinated conidia after 3 days after inoculation (dpi), which possibly strengthened the adhesion. A total of 15% of conidia germinated at 3 dpi, of which 2% formed typical conidium or an enlarged structure on germ-tube tips. Many conidia were produced on phialide tips that branched from elongated hyphae at 7 dpi; however, invasion into leaf tissue was not observed. On the leaflets, inoculated conidia suspensions of 1 × 105 and 1 × 106 conidia/mL, colony forming units increased 52.6 and 8.8 folds from 0 to 14 dpi, respectively. These results suggested that A. muscarius strain IMI 268317 has high epiphytic abilities on tomato leaflets in a humid condition.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"13 1","pages":"133 - 142"},"PeriodicalIF":4.2,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21501203.2021.1944929","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45752255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Endophytic fungi: a tool for plant growth promotion and sustainable agriculture. 内生真菌:促进植物生长和可持续农业的工具。

IF 4.2 2区生物学

Mycology Pub Date : 2021-06-29 eCollection Date: 2022-01-01 DOI: 10.1080/21501203.2021.1945699

Noemi Carla Baron, Everlon Cid Rigobelo

引用次数: 73

Updates on food and feed mycotoxin contamination and safety in Africa with special reference to Nigeria. 非洲食品和饲料霉菌毒素污染和安全的最新情况，特别提到尼日利亚。

IF 4.2 2区生物学

Mycology Pub Date : 2021-06-20 eCollection Date: 2021-01-01 DOI: 10.1080/21501203.2021.1941371

Francis Imade, Edgar Mugizi Ankwasa, Hairong Geng, Sana Ullah, Tanvir Ahmad, Gang Wang, Chenxi Zhang, Oyeyemi Dada, Fuguo Xing, Yongquan Zheng, Yang Liu

{"title":"Updates on food and feed mycotoxin contamination and safety in Africa with special reference to Nigeria.","authors":"Francis Imade, Edgar Mugizi Ankwasa, Hairong Geng, Sana Ullah, Tanvir Ahmad, Gang Wang, Chenxi Zhang, Oyeyemi Dada, Fuguo Xing, Yongquan Zheng, Yang Liu","doi":"10.1080/21501203.2021.1941371","DOIUrl":"https://doi.org/10.1080/21501203.2021.1941371","url":null,"abstract":"Mycotoxin contamination of food and feed is a major concern in sub-Sahara African countries, particularly Nigeria. It represents a significant limit to health of human, livestock as well as the international trade. Aflatoxins, fumonisins, ochratoxin, zearalenone, deoxynivalenol and beauvericin are the major mycotoxins recognised in the aetiology of food safety challenges that precipitated countless number of diseases. In Nigeria, aflatoxins and fumonisin found in nearly all crops are the most common mycotoxins of economic and health importance such as sorghum, maize and groundnuts. Thus, consumption of food contaminated with mycotoxins are inevitable, hence the need for adequate regulation is necessary in these frontier economies as done in many developed economies to ensure food safety for human and animals. In low and middle-income countries, especially Nigeria, there is lack of awareness and sufficient information on the risk associated with consequent of mycotoxin contamination on wellbeing of human, animals health and the economy. It is based on the foregoing that this paper summarized the status of mycotoxin present in Nigerian food and feeds relative to the global regulatory standards. This aimed at preventing consuming mycotoxin contaminated food stuff while confronting its associated challenges. Suggestions on some possible control strategies to mitigate vending mycotoxin food and feeds were made.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"12 4","pages":"245-260"},"PeriodicalIF":4.2,"publicationDate":"2021-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/21501203.2021.1941371","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39720015","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: 16