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Black-carrot drink şalgam as a habitat for spoilage yeasts 作为腐败酵母栖息地的黑胡萝卜饮料şalgam
IF 2.5 3区 生物学
Fungal biology Pub Date : 2024-02-01 DOI: 10.1016/j.funbio.2024.01.002
Dilek Safkan, Bilal Agirman, Bekir Safkan, Yeşim Soyer, Huseyin Erten
{"title":"Black-carrot drink şalgam as a habitat for spoilage yeasts","authors":"Dilek Safkan, Bilal Agirman, Bekir Safkan, Yeşim Soyer, Huseyin Erten","doi":"10.1016/j.funbio.2024.01.002","DOIUrl":"https://doi.org/10.1016/j.funbio.2024.01.002","url":null,"abstract":"<p><em>Şalgam</em> is a traditional drink produced via the lactic-acid fermentation of vegetables (black carrot and turnip), sourdough, and bulgur flour; with rock salt also added. During storage, an additional yeast-mediated fermentation can occur, causing changes in organoleptic properties, as evidenced by the microbe-mediated release of gases. Here, we characterise <em>şalgam</em> as a microbial habitat, identify the yeasts that cause spoilage, and characterise yeast-induced changes of the <em>şalgam</em>. The total acidity of the spoiled <em>şalgam</em>, in terms of lactic acid, ranged from 5.33 to 8.36 g/L with pH values from 3.86 to 4.10. Nine different spoilage fungi were isolated and then identified using molecular techniques (combination of PCR-RFLP of the 5.8 S-rRNA region and sequencing of the D1/D2 domain of the 26 S-rRNA gene). The highest frequencies of species were for the (apparently dominant) <em>Saccharomyces cerevisiae</em>, <em>Galactomyces candidum</em>, and <em>Pichia kudriavzevii</em>. Notably, two of these yeasts—<em>P. kudriavzevii</em> and <em>Saccharomyces cerevisiae</em>—are known to be acid-tolerant, have a robust stress biology, and can dominate various microbial habitats including those of fermented foods and drinks. <em>Şalgam</em> is a nutrient-rich, high-water-activity habitat that can favour the growth of various microbes and becomes less acidic (so more ecologically open) after the proliferation of yeasts.</p>","PeriodicalId":12683,"journal":{"name":"Fungal biology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139656837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Physicochemical characterisation of casings in relation to mushroom (Agaricus bisporus) cropping performance 与蘑菇(双孢蘑菇)种植性能有关的菌壳理化特性分析
IF 2.5 3区 生物学
Fungal biology Pub Date : 2024-02-01 DOI: 10.1016/j.funbio.2024.02.004
Ralph Noble, A. Dobrovin-Pennington
{"title":"Physicochemical characterisation of casings in relation to mushroom (Agaricus bisporus) cropping performance","authors":"Ralph Noble, A. Dobrovin-Pennington","doi":"10.1016/j.funbio.2024.02.004","DOIUrl":"https://doi.org/10.1016/j.funbio.2024.02.004","url":null,"abstract":"","PeriodicalId":12683,"journal":{"name":"Fungal biology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139816136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Persistent polycyclic aromatic hydrocarbons removal from sewage sludge-amended soil through phytoremediation combined with solid-state ligninolytic fungal cultures 通过植物修复结合固态木质素分解真菌培养去除污水污泥改良土壤中的持久性多环芳烃
IF 2.5 3区 生物学
Fungal biology Pub Date : 2024-01-30 DOI: 10.1016/j.funbio.2024.01.007
Abraham Demelash Chane , Zdeněk Košnář , Tereza Hřebečková , Miroslav Jozífek , Petr Doležal , Pavel Tlustoš
{"title":"Persistent polycyclic aromatic hydrocarbons removal from sewage sludge-amended soil through phytoremediation combined with solid-state ligninolytic fungal cultures","authors":"Abraham Demelash Chane ,&nbsp;Zdeněk Košnář ,&nbsp;Tereza Hřebečková ,&nbsp;Miroslav Jozífek ,&nbsp;Petr Doležal ,&nbsp;Pavel Tlustoš","doi":"10.1016/j.funbio.2024.01.007","DOIUrl":"10.1016/j.funbio.2024.01.007","url":null,"abstract":"<div><p><span><span>Polycyclic aromatic hydrocarbons (PAHs) are widely present in the environment, causing increasing concern because of their impact on soil health, food safety and potential health risks. Four bioremediation strategies were examined to assess the dissipation of PAHs in agricultural soil amended with sewage sludge over a period of 120 days: soil-sludge natural attenuation (SS); </span>phytoremediation using maize (</span><span><em>Zea</em><em> mays</em></span> L.) (PSS); mycoremediation (MR) separately using three white-rot fungi (<span><em>Pleurotus ostreatus</em></span>, <span><em>Phanerochaete </em><em>chrysosporium</em></span> and <em>Irpex lacteus)</em>; and plant-assisted mycoremediation (PMR) using a combination of maize and fungi. In the time frame of the experiment, mycoremediation using <em>P</em>. <em>chrysosporium</em> (MR-PH) exhibited a significantly higher (<em>P</em><span><span> &lt; 0.05) degradation of total PAHs compared to the SS and PSS treatments, achieving a degradation rate of 52 %. Both the SS and PSS treatments demonstrated a lower degradation rate of total PAHs, with removal rates of 18 % and 32 %, respectively. The PMR treatments showed the highest removal rates of total PAHs at the end of the study, with degradation rates of 48–60 %. In the shoots of maize, only low- and medium-molecular-weight PAHs were found in both the PSS and PMR treatments. The calculated translocation and bioconversion factors always showed values &lt; 1. The analysed </span>enzymatic activities were higher in the PMR treatments compared to other treatments, which can be positively related to the higher degradation of PAHs in the soil.</span></p></div>","PeriodicalId":12683,"journal":{"name":"Fungal biology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139656958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Microsclerotia from Metarhizium robertsii: Production, ultrastructural analysis, robustness, and insecticidal activity 罗伯茨丝核菌的小硬菌:生产、超微结构分析、稳健性和杀虫活性
IF 2.5 3区 生物学
Fungal biology Pub Date : 2024-01-24 DOI: 10.1016/j.funbio.2024.01.006
Jennifer Lorena García Riaño , Gloria Patricia Barrera , Leonardo Castellanos Hernández , Laura Fernanda Villamizar
{"title":"Microsclerotia from Metarhizium robertsii: Production, ultrastructural analysis, robustness, and insecticidal activity","authors":"Jennifer Lorena García Riaño ,&nbsp;Gloria Patricia Barrera ,&nbsp;Leonardo Castellanos Hernández ,&nbsp;Laura Fernanda Villamizar","doi":"10.1016/j.funbio.2024.01.006","DOIUrl":"10.1016/j.funbio.2024.01.006","url":null,"abstract":"<div><p>Microsclerotia (MS) are considered one of the most promising propagules for use as active ingredients in biopesticides due to their tolerance to abiotic factors and ability to produce infective conidia for the control of pests. Therefore, the objective of this research was to establish the conditions required to induce the formation of microsclerotia in <em>Metarhizium robertsii</em> Mt004 and to study its development process, tolerance to abiotic factors and insecticidal activity of MS-derived conidia. <em>M. robertsii</em> started to form hyphal aggregates after 2 days and looked more compact after 8 days. MS were mature and pigmented after 20 days. The final yield was 2.0 × 10<sup>3</sup> MS/mL and MS size varied between 356.9 and 1348.4 μm. Ultrastructure analysis revealed that mature MS contained only a few live cells embedded in an extracellular matrix. Mature MS were more tolerance to UV-B radiation, heat and storage trials than conidia from Solid State Fermentation. MS-derived conidia were as virulent as conidia against <em>Diatraea saccharalis</em> larvae. These results showed that MS are promising propagules for the development of more persistent and efficient biopesticides for harsh environmental conditions. Our findings provide a baseline for production and a better understanding of microsclerotia development in <em>M. robertsii</em> strains.</p></div>","PeriodicalId":12683,"journal":{"name":"Fungal biology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1878614624000060/pdfft?md5=3c704ee18af2216e1cc404b4731af25a&pid=1-s2.0-S1878614624000060-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139557853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Total transcriptome response for tyrosol exposure in Aspergillus nidulans 黑曲霉接触酪醇后的总转录组反应
IF 2.5 3区 生物学
Fungal biology Pub Date : 2024-01-20 DOI: 10.1016/j.funbio.2024.01.003
Ágnes Jakab , Kinga Csillag , Károly Antal , Imre Boczonádi , Renátó Kovács , István Pócsi , Tamás Emri
{"title":"Total transcriptome response for tyrosol exposure in Aspergillus nidulans","authors":"Ágnes Jakab ,&nbsp;Kinga Csillag ,&nbsp;Károly Antal ,&nbsp;Imre Boczonádi ,&nbsp;Renátó Kovács ,&nbsp;István Pócsi ,&nbsp;Tamás Emri","doi":"10.1016/j.funbio.2024.01.003","DOIUrl":"10.1016/j.funbio.2024.01.003","url":null,"abstract":"<div><p>Although tyrosol is a quorum-sensing molecule of <em>Candida</em> species, it has antifungal activity at supraphysiological concentrations. Here, we studied the effect of tyrosol on the physiology and genome-wide transcription of <em>Aspergillus nidulans</em> to gain insight into the background of the antifungal activity of this compound. Tyrosol efficiently reduced germination of conidia and the growth on various carbon sources at a concentration of 35 mM. The growth inhibition was fungistatic rather than fungicide on glucose and was accompanied with downregulation of 2199 genes related to e.g. mitotic cell cycle, glycolysis, nitrate and sulphate assimilation, chitin biosynthesis, and upregulation of 2250 genes involved in e.g. lipid catabolism, amino acid degradation and lactose utilization. Tyrosol treatment also upregulated genes encoding glutathione-S-transferases (GSTs), increased specific GST activities and the glutathione (GSH) content of the cells, suggesting that <em>A. nidulans</em> can detoxify tyrosol in a GSH-dependent manner even though this process was weak. Tyrosol did not induce oxidative stress in this species, but upregulated “response to nutrient levels”, “regulation of nitrogen utilization”, “carbon catabolite activation of transcription” and “autophagy” genes. Tyrosol may have disturbed the regulation and orchestration of cellular metabolism, leading to impaired use of nutrients, which resulted in growth reduction.</p></div>","PeriodicalId":12683,"journal":{"name":"Fungal biology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1878614624000035/pdfft?md5=4891c3266afb47f7fa6a205f7b9c64f1&pid=1-s2.0-S1878614624000035-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139558015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Xylitol fermentation characteristics with a newly isolated yeast Wickerhamomyces anomalus WA 新分离的 Wickerhamomyces anomalus WA 酵母菌的木糖醇发酵特性
IF 2.5 3区 生物学
Fungal biology Pub Date : 2024-01-20 DOI: 10.1016/j.funbio.2024.01.004
Yuanzhen Deng , Xiuyuan Luo , Huanyuan Wang , Shubo Li , Jingjuan Liang , Zongwen Pang
{"title":"Xylitol fermentation characteristics with a newly isolated yeast Wickerhamomyces anomalus WA","authors":"Yuanzhen Deng ,&nbsp;Xiuyuan Luo ,&nbsp;Huanyuan Wang ,&nbsp;Shubo Li ,&nbsp;Jingjuan Liang ,&nbsp;Zongwen Pang","doi":"10.1016/j.funbio.2024.01.004","DOIUrl":"10.1016/j.funbio.2024.01.004","url":null,"abstract":"<div><p><span>Xylitol is an increasingly popular functional food additive, and the newly isolated yeast </span><span><em>Wickerhamomyces anomalus</em></span><span> WA has shown extensive substrate utilization capability, with the ability to grow on hexose (</span><span>d</span>-galactose, <span>d</span>-glucose, <span>d</span>-mannose, <span>l</span>-fructose, and <span>d</span><span>-sorbose) and pentose (</span><span>d</span>-xylose and <span>l</span><span>-arabinose) substrates, as well as high tolerance to xylose at concentrations of up to 300 g/L. Optimal xylitol fermentation conditions were achieved at 32 °C, 140 rpm, pH 5.0, and initial cell concentration OD</span><sub>600</sub><span> of 2.0, with YP (yeast extract 10 g/L, peptone<span> 20 g/L) as the optimal nitrogen source. Xylitol yield increased from 0.61 g/g to 0.91 g/g with an increase in initial substrate concentration from 20 g/L to 180 g/L. Additionally, 20 g/L glycerol was found to be the optimal co-substrate for xylitol fermentation, resulting in an increase in xylitol yield from 0.82 g/g to 0.94 g/g at 140 rpm, enabling complete conversion of xylose to xylitol.</span></span></p></div>","PeriodicalId":12683,"journal":{"name":"Fungal biology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139517218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Fungal thermotolerance revisited and why climate change is unlikely to be supercharging pathogenic fungi (yet) 重新审视真菌的耐热性,为什么气候变化不太可能使病原真菌的生长速度加快(目前还没有)
IF 2.5 3区 生物学
Fungal biology Pub Date : 2024-01-14 DOI: 10.1016/j.funbio.2024.01.005
Nicholas P. Money
{"title":"Fungal thermotolerance revisited and why climate change is unlikely to be supercharging pathogenic fungi (yet)","authors":"Nicholas P. Money","doi":"10.1016/j.funbio.2024.01.005","DOIUrl":"10.1016/j.funbio.2024.01.005","url":null,"abstract":"<div><p>Thermotolerance has been viewed as an uncommon characteristic among the fungi and one of the reasons that less than 1% of the described species operate as opportunistic pathogens of humans. Growth at 37°C is certainly a requirement for a fungus that invades the body core, but tens of thousands of nonpathogenic species are also able to grow at this temperature. Ergo, body temperature does not serve as a thermal barrier to the development of infections by many harmless fungi. The absence of other virulence factors must be more demanding. This observation raises questions about the hypothetical links between climate change and the increasing number of life-threatening human mycoses. Given the widespread distribution of fungal thermotolerance and the 1°C (2°F) increase in global temperature over the last 140 years it seems unlikely that the warming climate has driven the evolution of more virulent strains of fungi. More compelling explanations for the changes in the behavior of fungi as disease agents include their adaptation to the widening use of azole antifungals in hospitals and the wholesale application of millions of tons of the same class of heterocyclic chemicals in agriculture. On the other hand, climate change is having a significant effect on the spread of human mycoses by extending the geographical range of pathogenic fungi. A related increase in fungal asthma caused by spore inhalation is another likely consequence of planetary change.</p></div>","PeriodicalId":12683,"journal":{"name":"Fungal biology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1878614624000059/pdfft?md5=48a66b32d8d4c5593c554b62925c980e&pid=1-s2.0-S1878614624000059-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139465046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
The evolution of complex metarhizium-insect-plant interactions 复杂的根瘤蚜-昆虫-植物相互作用的演变
IF 2.5 3区 生物学
Fungal biology Pub Date : 2024-01-06 DOI: 10.1016/j.funbio.2024.01.001
Raymond J. St Leger
{"title":"The evolution of complex metarhizium-insect-plant interactions","authors":"Raymond J. St Leger","doi":"10.1016/j.funbio.2024.01.001","DOIUrl":"https://doi.org/10.1016/j.funbio.2024.01.001","url":null,"abstract":"<p><em>Metarhizium</em> species interact with plants, insects, and microbes within a diffuse co-evolutionary framework that benefits soil health, biodiversity, and plant growth. The insect host ranges of these fungi vary greatly. Specialization to a narrow host range usually occurs in the tropics with its stable insect populations, and is characterized by the rapid evolution of existing protein sequences, sexual recombination, and small genomes. Host-generalists are associated with temperate regions and ephemeral insect populations. Their mutualistic plant-colonizing lifestyle increases survival when insects are rare, while facultative entomopathogenicity feeds both the fungi and plants when insects are common. Host-generalists have lost meiosis and associated genome defense mechanisms, enabling gene duplications to diversify functions related to plant colonization and host exploitation. Horizontal gene transfer events via transposons have also contributed to host range changes, while parasexuality combines beneficial mutations within individual clones of host-generalists. There is also a lot of genetic variation in insect populations and an increasing understanding that both pathogen virulence and insect immunity are linked with stress responses. Thus, susceptibility to host-generalists can vary due to non-specific resistance to multiple stressors, multipurpose physical and chemical barriers, and heterogeneity in physiological and behavioral factors, such as sleep.</p>","PeriodicalId":12683,"journal":{"name":"Fungal biology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139372961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Responses to and detoxification of esculin in white-rot fungi 白腐真菌对esculin的反应和解毒作用
IF 2.5 3区 生物学
Fungal biology Pub Date : 2024-01-01 DOI: 10.1016/j.funbio.2023.12.008
Raphael Bchini, Sylvain Darnet, Arthur de Butler, Annick Doan, Lydie Oliveira-Correia, David Navarro, Eric Record, Mélanie Morel-Rouhier
{"title":"Responses to and detoxification of esculin in white-rot fungi","authors":"Raphael Bchini, Sylvain Darnet, Arthur de Butler, Annick Doan, Lydie Oliveira-Correia, David Navarro, Eric Record, Mélanie Morel-Rouhier","doi":"10.1016/j.funbio.2023.12.008","DOIUrl":"https://doi.org/10.1016/j.funbio.2023.12.008","url":null,"abstract":"<p>Plant metabolites have a great potential for limiting the spread of harmful fungi. However, a better understanding of the mode-of-action of these molecules and the defense systems developed by fungi to resist them, is needed to assess the benefits/risks of using them as antifungal treatment. White-rot fungi are excellent models in this respect, as they have adapted to the hostile habitat that is wood. In fact, wood is a source of putative antifungal compounds that can be derived using extraction techniques. In this study, we demonstrated that esculin and esculetin, which are coumarins found in plants and wood, reduce the growth of the wood-rotting fungi <em>Fomitiporia mediterranea, Phanerochaete chrysosporium</em>, <em>Pycnoporus cinnabarinus</em> and <em>Trametes versicolor</em>. We have shown that extracellular strategies are developed by the fungi to deal with esculin, through the involvement of laccases, peroxidases and glycoside hydrolases, and intracellular strategies, mainly via upregulated protein translation. Comparative proteomic and metabolomic approaches revealed that, despite the fact that the species analysed are closely related (they all belong to the Agaricomycetes, and have the same trophic mode), their defense responses to esculin differ.</p>","PeriodicalId":12683,"journal":{"name":"Fungal biology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139094607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: 0
Taxonomy, biological characterization and fungicide sensitivity assays of Hypomyces cornea sp. nov. causing cobweb disease on Auricularia cornea 引起角膜金鸡菊蛛网病的角膜金鸡菊霉菌新种的分类、生物学特征和杀菌剂敏感性测定
IF 2.5 3区 生物学
Fungal biology Pub Date : 2023-12-31 DOI: 10.1016/j.funbio.2023.12.007
Jiangtao Xie , Sibei Lu , Entaj Tarafder , Yintao Pan , Keqin Peng , Xiangyu Zeng , Fenghua Tian
{"title":"Taxonomy, biological characterization and fungicide sensitivity assays of Hypomyces cornea sp. nov. causing cobweb disease on Auricularia cornea","authors":"Jiangtao Xie ,&nbsp;Sibei Lu ,&nbsp;Entaj Tarafder ,&nbsp;Yintao Pan ,&nbsp;Keqin Peng ,&nbsp;Xiangyu Zeng ,&nbsp;Fenghua Tian","doi":"10.1016/j.funbio.2023.12.007","DOIUrl":"10.1016/j.funbio.2023.12.007","url":null,"abstract":"<div><p><em>Auricularia cornea</em> is an important edible mushroom crop in China but the occurrence of cobweb disease has cause significance economic loss in its production. The rate of disease occurrence is 16.65% all over the country. In the present study, a new pathogen <em>Hypomyces cornea</em> sp. nov. was found to cause the cobweb disease. In July 2021, three strains of fungal pathogen were isolated from infected fruiting bodies and identified as <em>H. cornea</em> based on morphological studies and molecular phylogenetic analysis of internal transcribed spacer (ITS) of nuclear ribosomal DNA, mitochondrial large subunit (LSU) of rRNA and the partial translation elongation factor 1-alpha genes. The representative isolates of the pathogenic <em>Hypomyces</em> species used to perform pathogenicity test with spore suspension that caused similar symptoms as those observed in the cultivated field, and same pathogens could be re-isolated, which fulfill Koch's postulates. The typical biological characterization was examined of the serious pathogen to determine its favorable growth conditions, including suitable temperature, pH, carbon, nitrogen sources and light conditions. The findings revealed an optimum temperature of 25 °C, pH of 6, and soluble starch and peptone as the preferred carbon and nitrogen sources, respectively. The hyphal growth inhibition method was used for primary in vitro screening test of seven common fungicides, and the most suitable fungicide is Prochloraz manganese chloride complex, the EC<sub>50</sub> values of cobweb pathogen and mushrooms were 0.085 μg/mL and 2.452 μg/mL, respectively. The results of our research provide an evidence-based basis for the effective prevention and treatment of <em>A. cornea</em> cobweb disease.</p></div>","PeriodicalId":12683,"journal":{"name":"Fungal biology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1878614623001381/pdfft?md5=75620b33e8f0f9cf9522cf25b131d3dd&pid=1-s2.0-S1878614623001381-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139070454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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