Mycology最新文献_第10页

Isolation, screening, preliminary optimisation and characterisation of thermostable xylanase production under submerged fermentation by fungi in Durban, South Africa. 南非德班地区真菌深层发酵产热稳定木聚糖酶的分离、筛选、初步优化和特性研究。

IF 4.2 2区生物学

Mycology Pub Date : 2022-06-20 eCollection Date: 2022-01-01 DOI: 10.1080/21501203.2022.2079745

Priyashini Dhaver, Brett Pletschke, Bruce Sithole, Roshini Govinden

{"title":"Isolation, screening, preliminary optimisation and characterisation of thermostable xylanase production under submerged fermentation by fungi in Durban, South Africa.","authors":"Priyashini Dhaver, Brett Pletschke, Bruce Sithole, Roshini Govinden","doi":"10.1080/21501203.2022.2079745","DOIUrl":"https://doi.org/10.1080/21501203.2022.2079745","url":null,"abstract":"Fungi are renowned for their ability to produce extracellular enzymes into their surrounding environment. Xylanases are hydrolytic enzymes capable of xylan degradation. The objectives of this study were to isolate, screen for potential xylanolytic fungi from soil and tree bark samples from three locations in South Africa and to determine their growth conditions for maximum xylanase production. Forty-six isolates were obtained based on clearing zone formation on xylan-enriched agar plates using Congo red indicator. Xylanase activity was quantified during submerged fermentation. Isolate MS5, identified as Trichoderma harzianum with the highest enzyme activity (38.17 U/ml) was selected for further studies based on thermophilic properties (70°C) and pH (5.0). The culture conditions; incubation period (5 days), agitation speed (160 rpm) wheat bran (1%) and ammonium sulphate (1.2%) were optimised further. Biochemical characterisation of the crude enzyme revealed two pH and temperature optima (pH 6.0 at 60°C and 70°C, pH 8.0 at 55°C and 75°C). The enzyme retained >70% activity after 4 h at pH 6.0 at 70°C. SDS-PAGE revealed multiple protein bands with a prominent band at 70 kDa. Substrate Native PAGE revealed multiple isoforms between 55 and 130 kDa. This enzyme will be beneficial for applications in the animal feed and biofuels industries.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"13 4","pages":"271-292"},"PeriodicalIF":4.2,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9673795/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40485811","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

What is the correct scientific name for "Fuling" medicinal mushroom? “涪陵”药菇的正确学名是什么?

IF 4.2 2区生物学

Mycology Pub Date : 2022-06-20 eCollection Date: 2022-01-01 DOI: 10.1080/21501203.2022.2089755

Viktor Papp, Yu-Cheng Dai

引用次数: 1

Preparation, structural characterisation, and antioxidant activities of polysaccharides from eight boletes (Boletales) in tropical China. 中国热带地区八种牛肝菌多糖的制备、结构特征和抗氧化活性。

IF 4.6 2区生物学

Mycology Pub Date : 2022-05-06 eCollection Date: 2022-01-01 DOI: 10.1080/21501203.2022.2069172

Run Tian, Hui Chai, Jun-Qiang Qiu, Zhi-Qun Liang, Hui-Jing Xie, Yong Wang, Nian-Kai Zeng

{"title":"Preparation, structural characterisation, and antioxidant activities of polysaccharides from eight boletes (Boletales) in tropical China.","authors":"Run Tian, Hui Chai, Jun-Qiang Qiu, Zhi-Qun Liang, Hui-Jing Xie, Yong Wang, Nian-Kai Zeng","doi":"10.1080/21501203.2022.2069172","DOIUrl":"10.1080/21501203.2022.2069172","url":null,"abstract":"Polysaccharides in boletes (Boletales) are economically significant to both function food and medicinal industries. The polysaccharides were extracted from the fruit bodies of eight boletes, namely, Aureoboletus longicollis, Butyriboletus hainanensis, Crocinoboletus rufoaureus, Hemioporus japonicus, Neoboletus infuscatus, Neoboletus obscureumbrinus, Tylopilus otsuensis, Xanthoconium fusciceps, which were collected from tropical China; their physicochemical properties and antioxidant activities were characterised and evaluated, respectively. The results revealed that the polysaccharides among the eight boletes were mainly composed of glucose, mannose, and galactose, with a broad molecular weight range, and contained a pyranose ring revealed by FT-IR and NMR spectral analyses. Many factors such as different species of boletes, geographic conditions, molecular weight, configuration, and monosaccharide content may affect the antioxidant power of polysaccharides, simultaneously, instead of one single factor. The antioxidant activities of the polysaccharides were measured according to in vitro assays of DPPH scavenging, superoxide anion scavenging, and ferrous ion reducing tests. The polysaccharide of C. rufoaureus has greatly superior antioxidant activity and it could serve as potential functional food or medicine.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"13 3","pages":"195-206"},"PeriodicalIF":4.6,"publicationDate":"2022-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9354634/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40609162","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

Novel indole diketopiperazine stereoisomers from a marine-derived fungus Aspergillus sp. 海洋源真菌曲霉中的新型吲哚二酮哌嗪立体异构体

IF 4.6 2区生物学

Mycology Pub Date : 2022-04-29 eCollection Date: 2023-01-01 DOI: 10.1080/21501203.2022.2069173

Xinyang Li, Jinzhong Xu, Pinmei Wang, Wanjing Ding

引用次数: 0

Lignicolous freshwater fungi in Yunnan Province, China: an overview 云南木质素淡水真菌研究进展

IF 4.2 2区生物学

Mycology Pub Date : 2022-04-03 DOI: 10.1080/21501203.2022.2058638

Hongyi Shen, D. Bao, D. J. Bhat, H. Su, Zong-Long Luo

引用次数: 5

Influence of plant growth-promoting endophytes Colletotrichum siamense and Diaporthe masirevici on tomato plants (Lycopersicon esculentum Mill.). 促进植物生长的内生菌炭疽菌(Colletotrichum siamense)和大孢子菌(Diaporthe masirevici)对番茄植株的影响

IF 4.2 2区生物学

Mycology Pub Date : 2022-03-17 eCollection Date: 2022-01-01 DOI: 10.1080/21501203.2022.2050825

Shalene da Silva da Silva Santos, Angela Aparecida da da Silva, Julio Cesar Polonio, Andressa Domingos Polli, Ravely Casarotti Orlandelli, João Arthur Dos Santos Dos Santos Oliveira, José Usan Torres Brandão Filho, João Lúcio Azevedo, João Alencar Pamphile

{"title":"Influence of plant growth-promoting endophytes Colletotrichum siamense and Diaporthe masirevici on tomato plants (Lycopersicon esculentum Mill.).","authors":"Shalene da Silva da Silva Santos, Angela Aparecida da da Silva, Julio Cesar Polonio, Andressa Domingos Polli, Ravely Casarotti Orlandelli, João Arthur Dos Santos Dos Santos Oliveira, José Usan Torres Brandão Filho, João Lúcio Azevedo, João Alencar Pamphile","doi":"10.1080/21501203.2022.2050825","DOIUrl":"https://doi.org/10.1080/21501203.2022.2050825","url":null,"abstract":"The protective and growth-promoting activities of Colletrotrichum and Diaporthe endophytes on tomato plants (Lycopersicon esculentum Mill.) are underexplored. We screened 40 endophytic fungi associated with Mexican shrimp plant (Justicia brandegeana) using an in vitro dual culture assay for Fusarium oxysporum, one of the most important phytopathogens of tomato plants. The three best antagonists, Colletotrichum siamense (JB224.g1), C. siamense (JB252.g1), and Diaporthe masirevicii (JB270), were identified based on multilocus sequence analysis. They were assessed in vitro for their inhibition of F. oxysporum and phosphate solubilisation capacity, and for the production of indole acetic acid. Greenhouse experiments verified the growth-promoting effects of these endophytes and the suppression of F. oxysporum symptoms in tomato plants. Under greenhouse conditions, the JB252.g1 and JB270 isolates showed positive results for seedling emergence speed. The radicular system depth of plants inoculated with JB270 was greater than that in uninoculated plants (27.21 vs 21.95 cm). The soil plant analysis development chlorophyll metre (SPAD) index showed statistically significant results, especially for the endophyte JB224.g1 (36.99) compared to the control plants (30.90) and plants infected solely with F. oxysporum (33.64).","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"13 4","pages":"257-270"},"PeriodicalIF":4.2,"publicationDate":"2022-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9673798/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40485812","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

Glyceroglycolipids from the solid culture of Ophiocordyceps sinensis strain LY34 isolated from Tibet of China. 西藏产冬虫夏草LY34菌株固体培养物的甘油糖脂含量。

IF 4.2 2区生物学

Mycology Pub Date : 2022-02-22 eCollection Date: 2022-01-01 DOI: 10.1080/21501203.2022.2036841

Baosong Chen, Jinghan Lin, Ao Xu, Dan Yu, Dorji Phurbu, Huanqin Dai, Yi Li, Hongwei Liu

引用次数: 0

Optimization for the production of a polyketone 3S,4S-DMD from Panus lecomtei (Agaricomycetes) by submerged fermentation. 琼脂菌深层发酵生产聚酮3S,4S-DMD的优化研究。

IF 4.2 2区生物学

Mycology Pub Date : 2022-02-17 eCollection Date: 2022-01-01 DOI: 10.1080/21501203.2022.2036842

Si-Xian Wang, Ping Huang, Hongwei Liu, Yucheng Dai, Xiao-Ling Wang, Gao-Qiang Liu

{"title":"Optimization for the production of a polyketone 3S,4S-DMD from Panus lecomtei (Agaricomycetes) by submerged fermentation.","authors":"Si-Xian Wang, Ping Huang, Hongwei Liu, Yucheng Dai, Xiao-Ling Wang, Gao-Qiang Liu","doi":"10.1080/21501203.2022.2036842","DOIUrl":"https://doi.org/10.1080/21501203.2022.2036842","url":null,"abstract":"3,4-Dihydroxy-2,2-dimethyl-chroman derivatives have diverse physiological properties. A polyketone (3S,4S)-3,4-Dihydroxy-6-methoxy-2,2-dimethylchromom (3S,4S-DMD) with antibacterial activity was isolated from the solid culture of rare edible fungus Panus lecomtei. However, the yield of 3S,4S-DMD in solid culture of P. lecomtei is very low and the production period are too long. In this work, efficient accumulation of 3S,4S-DMD in P. lecomtei by submerged fermentation is studied. The key fermentation factors of P. lecomtei for 3S,4S-DMD production were optimised by single-factor experiment successively, and then a Box-Behnken design (BBD) experiment was carried out to further enhance 3S,4S-DMD production. A maximum 3S,4S-DMD yield of 196.3 mg/L was obtained at 25.78 g/L glucose, 1.67 g/L MgSO4 · 7H2O, 40°C and 197 r/min, respectively, which increased by 1.3-fold in comparison with that in the non-optimised fermentation conditions. Furthermore, an enhanced yield of 3S,4S-DMD (261.6 mg/L) was obtained in 5-L agitated fermenter. The 3S,4S-DMD productivity in flask and fermenter reached to 7.26 and 8.07 mg/g per day, respectively, which considerably increased by over 121-fold in comparison with that in the solid fermentation (0.06 mg/g per day). This study presents a potential method for the production of 3S,4S-DMD by submerged fermentation.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"13 3","pages":"212-222"},"PeriodicalIF":4.2,"publicationDate":"2022-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9354644/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40689133","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: 1

Ethnobiological notes and volatile profiles of two rare Chinese desert truffles. 两种稀有中国沙漠松露的民族生物学特征和挥发性特征。

IF 4.2 2区生物学

Mycology Pub Date : 2022-02-14 eCollection Date: 2022-01-01 DOI: 10.1080/21501203.2022.2035005

Bin Lu, Feng-Ming Zhang, Fu-Qiang Yu, Andrea C Rinaldi

引用次数: 1

Plants and endophytes - a partnership for the coumarin production through the microbial systems. 植物和内生菌——通过微生物系统生产香豆素的伙伴关系。

IF 4.2 2区生物学

Mycology Pub Date : 2022-02-07 eCollection Date: 2022-01-01 DOI: 10.1080/21501203.2022.2027537

Chandrashekar Srinivasa, Govindappa Mellappa, Shashank M Patil, Ramith Ramu, Bhargav Shreevatsa, Chandan Dharmashekar, Shiva Prasad Kollur, Asad Syed, Chandan Shivamallu

{"title":"Plants and endophytes - a partnership for the coumarin production through the microbial systems.","authors":"Chandrashekar Srinivasa, Govindappa Mellappa, Shashank M Patil, Ramith Ramu, Bhargav Shreevatsa, Chandan Dharmashekar, Shiva Prasad Kollur, Asad Syed, Chandan Shivamallu","doi":"10.1080/21501203.2022.2027537","DOIUrl":"https://doi.org/10.1080/21501203.2022.2027537","url":null,"abstract":"Plant-based secondary metabolite production system is well established. However, host-endophyte interaction in the production of secondary metabolite is a new less exploited area that is overcoming barriers and evolving as one of the prospective fields. Endophytes such as bacteria or fungi have the ability to produce some of the secondary metabolites that mimic the plant metabolites therefore escaping the host defence system. Coumarin is one such metabolite with immense biological functions. Most of the studies have demonstrated coumarin production from fungal endophytes but not bacterial endophytes. Herein, we present an overview of all the coumarin derivatives produced from endophytic sources and their biosynthetic pathways. Furthermore, the review also throws light on the isolation of these coumarins and different derivatives with respect to their biological activity. The biotransformation of coumarin derivatives by the action of endophytic fungi is also elaborated. The present review provides an insight on the challenges faced in the coumarin production through fungal endophytes.","PeriodicalId":18833,"journal":{"name":"Mycology","volume":"13 4","pages":"243-256"},"PeriodicalIF":4.2,"publicationDate":"2022-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9673776/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40485815","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: 12