Microbiology最新文献_第9页

Effect of the Bacteriocin Subtilosin P19 on Bacillus anthracis Spores 细菌素Subtilosin P19对炭疽芽孢杆菌孢子的影响

IF 1.5 4区生物学

Microbiology Pub Date : 2023-11-28 DOI: 10.1134/s0026261723602105

V. D. Pokhilenko, V. N. Gerasimov, S. K. Zhigletsova, T. A. Kalmantaev, I. A. Chukina, R. I. Mironova, A. R. Gajtrafimova

引用次数: 0

Characterization of Rhodotorula mucilaginosa RSRod01 Isolated from Trifolium sp. Root Nodules Growing at a Pb-Zn Mine Site 某铅锌矿三叶草根瘤分离株粘液红霉菌RSRod01的鉴定

IF 1.5 4区生物学

Microbiology Pub Date : 2023-11-28 DOI: 10.1134/s0026261723600891

S. Rahal, B. Menaa, D. Chekireb

{"title":"Characterization of Rhodotorula mucilaginosa RSRod01 Isolated from Trifolium sp. Root Nodules Growing at a Pb-Zn Mine Site","authors":"S. Rahal, B. Menaa, D. Chekireb","doi":"10.1134/s0026261723600891","DOIUrl":"https://doi.org/10.1134/s0026261723600891","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>New advance in plant–microorganism interactions research revealed the ability of plants to affect the composition of root-associated microbial communities, selecting for the microorganisms required for their growth in different ecosystems under stress conditions. Yeasts can play important roles in promoting plant growth; however, little information is available in this regard. In this study, we evaluated the ability of Rhodotorula mucilaginosa RSRod01 strain isolated from the root nodules of Trifolium sp. collected from a Pb-Zn mine soil to promote plant growth in vitro by producing a siderophore and extracellular enzymes, and exhibiting antifungal activity, as well as its tolerance to heavy metals and salinity. The results showed that the isolate possessed important plant growth-promoting (PGP) traits, including the capacity to grow at 4% salt concentration and resistance to high levels of heavy metals. Resistance to heavy metals decreased in the following row: Pb2+ > Cu2+ > Co2+ > Zn2+ = Ni2+ > Cd2+> Cr6+.","PeriodicalId":18514,"journal":{"name":"Microbiology","volume":"118 1-4","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138527269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effect of the Extracts from Lichens and Lichenophilic Fungi on In Vitro Growth of Clinically Significant Microorganisms 地衣及嗜地衣真菌提取物对临床重要微生物体外生长的影响

IF 1.5 4区生物学

Microbiology Pub Date : 2023-11-28 DOI: 10.1134/s0026261723602087

T. A. Pankratov, R. E. Shcherbatov, A. A. Del’tsov

{"title":"Effect of the Extracts from Lichens and Lichenophilic Fungi on In Vitro Growth of Clinically Significant Microorganisms","authors":"T. A. Pankratov, R. E. Shcherbatov, A. A. Del’tsov","doi":"10.1134/s0026261723602087","DOIUrl":"https://doi.org/10.1134/s0026261723602087","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">\u0000Abstract\u0000</h3>The activity of the ethanol extracts of lichens (LE), of the cultures of lichenophilic (endobiotic) fungi (LFE), and of ethanol extracts of these cultures was tested using the following test organisms: Escherichia coli, Salmonella typhimurium, Pseudomonas fluorescens, Staphylococcus aureus, Micrococcus luteus, Enterococcus faecium, Paenibacillus sp., and Candida parapsilosis. Selective activity of LE and LFE against yeasts and gram-positive and gram-negative bacteria was revealed. The extracts from Cladonia rangiferina exhibited no activity against any of the tested cultures. The previously reported locus effect on activity of metabolites of one lichen species was confirmed. Agar block technique was used to detect selective activity of 23 out of 61 analyzed fungal strains against gram-positive and gram-negative bacteria, and of 8 strains, against yeasts. Ethanol extracts of six cultures were shown to suppress the growth of St. aureus, M. luteus, Paenibacillus sp., and E. coli. Strain NM10F28209 from the lichen Stereocaulon paschale, which exhibited inhibitory activity against Ca. parapsilosis was selected for priority development of an antifungal preparation.","PeriodicalId":18514,"journal":{"name":"Microbiology","volume":"32 6","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138527271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Phylogenetic Diversity of Prokaryotic Communities of the Upper Sediment Layers of the Kandalaksha Bay, White Sea 白海坎达拉沙湾上层沉积物原核生物群落的系统发育多样性

IF 1.5 4区生物学

Microbiology Pub Date : 2023-11-28 DOI: 10.1134/s002626172360204x

D. V. Badmadashiev, A. R. Stroeva, A. A. Klyukina, E. N. Poludetkina, E. A. Bonch-Osmolovskaya

{"title":"Phylogenetic Diversity of Prokaryotic Communities of the Upper Sediment Layers of the Kandalaksha Bay, White Sea","authors":"D. V. Badmadashiev, A. R. Stroeva, A. A. Klyukina, E. N. Poludetkina, E. A. Bonch-Osmolovskaya","doi":"10.1134/s002626172360204x","DOIUrl":"https://doi.org/10.1134/s002626172360204x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">\u0000Abstract—</h3>Microbial communities of the sediments of the Kandalaksha Bay (White Sea) remain insufficiently studied. While the data on the rates of some microbial processes are available, very little is known about microorganisms inhabiting these sediments. In the this study, high-throughput sequencing of variable regions of 16S rRNA genes was used to characterize the microbial communities of 47 Kandalaksha Bay sediment samples collected at 10 cm below the bottom surface. Pseudomonadota and Desulfobacterota were the most abundant phyla, comprising together about a half of all prokaryotes. Determination of the dominant genus-level taxon proved impossible. The most represented chemoorganotrophic microorganisms were uncultured Sandaracinaceae (up to 10.8%) and Woeseia (up to 7.5%). Sulfate-reducing bacteria were important community components in the studied upper sediment layers, with uncultured groups SEEP-SRB1 (up to 7.0%) and Sva0081 (up to 5.9%) being the most abundant. In some samples, the genera Sulfurovum (up to 15.5%) and Thiohalophilus (up to 7.0%) involved in the oxidation of sulfur compounds were found to be important components of the community. Among the archaeal ASVs, the genus Nitrosopumilus oxidizing ammonium to nitrite exhibited the highest relative abundance (up to 6.9% of the total number of prokaryotes). Numerous sequences identified as the 16S rRNA gene fragments of chloroplasts were found in the samples, indicating that the rate of organic matter delivery to the upper sediment layers exceeded the rate of its degradation.","PeriodicalId":18514,"journal":{"name":"Microbiology","volume":"70 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138542255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Biodiversity, Isolation and Sequencing of Lactococcus lactis Bacteriophages from Dairy Industry Plants in Russia 俄罗斯乳业工厂乳酸乳球菌噬菌体的生物多样性、分离和测序

IF 1.5 4区生物学

Microbiology Pub Date : 2023-11-28 DOI: 10.1134/s0026261723601823

P. Pechenov, D. Stanovov, A. Efimov, I. Belalov, E. Kulikov, A. Letarov

引用次数: 0

Unraveling the Concealed Microbiome of a Dumpsite and a Conserved Wetland 揭示垃圾场和受保护湿地中隐藏的微生物群

IF 1.5 4区生物学

Microbiology Pub Date : 2023-11-28 DOI: 10.1134/s0026261722603050

M. B. Chakraborty, S. R. Patgiri, T. Joishy

{"title":"Unraveling the Concealed Microbiome of a Dumpsite and a Conserved Wetland","authors":"M. B. Chakraborty, S. R. Patgiri, T. Joishy","doi":"10.1134/s0026261722603050","DOIUrl":"https://doi.org/10.1134/s0026261722603050","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3>Massive quantitities of waste generated by rising human population and rapid urbanisation are often disposed of into open dumps or landfills. The leachates released from these dumpsites penetrate the soil and can alter the existing biotic communities of the soil. In soil, the microbial communities are the dominant drivers which undergo changes in community structure and diversity in response to the changes in their biotic and abiotic environment. The heterogeneous waste disposed in a dumpsite or a landfill releases leachate containing nutrients along with toxic chemicals and allochthonous microorganisms in the soil. How the microbial community structure and diversity changes in a landfill or a dumpsite soil receiving leachate from it are some important questions from the perspective of microbial ecology. To unravel the community structure of bacteria inthe soil receiving dumpsite leachate and to assess the disturbance diversity relationship in this site, a comparative metagenomic analysis of the soil receiving dumpsite leachate and that of the soil of an adjacent wetland (conserved under Ramsar convention) not receiving dumpsite leachate used as the reference point was done to observe the effect of waste dumping activity on microbial diversity. The microbial diversity of the soil receiving dumpsite leachate and that of the wetland soil were found to differ significantly. Higher microbial diversity was observed in the dumpsite soil, while the wetland soil showed relative dominance of a few microbial taxa.","PeriodicalId":18514,"journal":{"name":"Microbiology","volume":"116 1-4","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138527284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Methods for Determination of Antimicrobial Activity of Bacteriocins of Lactic Acid Bacteria 乳酸菌中细菌素抗菌活性的测定方法

IF 1.5 4区生物学

Microbiology Pub Date : 2023-11-28 DOI: 10.1134/s0026261723600520

M. K. Yadav, S. K. Tiwari

引用次数: 0

Secondary Metabolites of Bifido- and Lactobacteria Fulfilling Signal Functions 双歧杆菌和乳杆菌完成信号功能的次生代谢物

IF 1.5 4区生物学

Microbiology Pub Date : 2023-11-28 DOI: 10.1134/s0026261723601549

O. V. Bukharin, N. B. Perunova, Yu. A. Nikolaev, E. V. Ivanova, A. V. Oleskin, G. I. El’-Registan

引用次数: 0

Model Periphyton Biofilms: Biological System of Bioremediation of Synthetic Plastics 生物膜模型:合成塑料生物修复的生物系统