Journal of Basic Microbiology最新文献_第5页

Storage Impact on Chlamydospore Germination of Arthrobotrys flagrans in Sodium Alginate Pellets. 海藻酸钠微球中贮藏对旗鱼衣孢子萌发的影响。

IF 3.5 4区生物学

Journal of Basic Microbiology Pub Date : 2025-05-04 DOI: 10.1002/jobm.202500144

You-Lei Li, Bo-Bo Wang, Yan-Feng Wang, Xuan-Yu Chen, Feng-Hui Wang, Xin Li, Kui-Zheng Cai, Shuang-Yan Lv

{"title":"Storage Impact on Chlamydospore Germination of Arthrobotrys flagrans in Sodium Alginate Pellets.","authors":"You-Lei Li, Bo-Bo Wang, Yan-Feng Wang, Xuan-Yu Chen, Feng-Hui Wang, Xin Li, Kui-Zheng Cai, Shuang-Yan Lv","doi":"10.1002/jobm.202500144","DOIUrl":"https://doi.org/10.1002/jobm.202500144","url":null,"abstract":"This study aims to determine the shelf life of four batches of sodium alginate pellets containing the Arthrobotrys flagrans chlamydospores different storage conditions. Results showed that the germination rates of the chlamydospores in batches A and B increased in varying degrees at the indoor storage for 1 month but until 17 months of storage gradually declined to 0.52% and 0.48%, respectively. The germination rates in batches C and D gradually dropped to a minimum value at room temperature for 3-6 months but increased to the maximum value by 12 months and then again decreased to 1.26% and 2.22%, respectively, by 16 months. These pellets stored indoors were transferred to 4°C and -20°C storage. After storage for 2-5 months, the spore germination rates increased in different degrees. After the batch A and B pellets were stored at 4°C for 6, 12, and 30 months each, the chlamydospore germination rates increased to 10.76%, 11.87%, and 15.71%, respectively, for batch A and 29.63%, 8.34%, and 19.89%, respectively, for batch B. After the batch C and D pellet formulations were stored at -20°C for 1 year, the spore germination rates became twice as high as the initial values but close to their initial values at storage for 27 months. The data obtained in this study indicated that the shelf life of the pellets can be maintained for more than 2 years whether stored at 4°C or -20°C, between which the storage at -20°C was better.","PeriodicalId":15101,"journal":{"name":"Journal of Basic Microbiology","volume":" ","pages":"e70043"},"PeriodicalIF":3.5,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144019554","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

Issue Information: Journal of Basic Microbiology. 5/2025 期刊信息：Journal of Basic Microbiology. 5/2025

IF 3.5 4区生物学

Journal of Basic Microbiology Pub Date : 2025-05-02 DOI: 10.1002/jobm.70035

引用次数: 0

Cover: Journal of Basic Microbiology. 5/2025 封面：Journal of Basic Microbiology. 5/2025

IF 3.5 4区生物学

Journal of Basic Microbiology Pub Date : 2025-05-02 DOI: 10.1002/jobm.70034

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Rhizobacteria Revolution: Amplifying Crop Resilience and Yield in a Changing Climate Through Plant Growth Promotion. 根瘤菌革命：通过促进植物生长提高作物在气候变化中的抗逆性和产量。

IF 3.5 4区生物学

Journal of Basic Microbiology Pub Date : 2025-04-29 DOI: 10.1002/jobm.70039

Vani Sharma, Aditya Sheershwal, Shiwali Bisht

{"title":"Rhizobacteria Revolution: Amplifying Crop Resilience and Yield in a Changing Climate Through Plant Growth Promotion.","authors":"Vani Sharma, Aditya Sheershwal, Shiwali Bisht","doi":"10.1002/jobm.70039","DOIUrl":"https://doi.org/10.1002/jobm.70039","url":null,"abstract":"The rapid progression of climate change poses significant challenges to global agriculture, necessitating innovative solutions to ensure food security for an expanding population. Plant growth-promoting rhizobacteria (PGPR) offer a promising avenue for sustainable agriculture by enhancing crop resilience and productivity under environmental constraints. These beneficial microbes regulate key physiological processes in plants, such as phytohormone synthesis and nutrient solubilization. This enhances root architecture, improves soil fertility, and enables crops to adapt to resource-limited conditions. Moreover, PGPR strengthen plant defenses against abiotic stressors such as salinity, drought, and nutrient deficiencies, as well as biotic threats like pathogens. Empirical evidence demonstrates that PGPR inoculation can significantly enhance crop yields across diverse agroecosystems by increasing nutrient use efficiency and stress tolerance. Despite their proven potential, the effective deployment of PGPR in farming systems requires addressing critical issues related to scalability, formulation, and integration with existing practices. This review underscores the role of PGPR in mitigating climate-induced agricultural challenges, highlighting the need for interdisciplinary collaborations and robust knowledge-sharing networks to drive the adoption of PGPR-based interventions. By leveraging these microbial allies, we can pave the way for climate-resilient farming systems and safeguard global food security amidst an uncertain future.","PeriodicalId":15101,"journal":{"name":"Journal of Basic Microbiology","volume":" ","pages":"e039"},"PeriodicalIF":3.5,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143968457","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}

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Arsenic Detoxification Using Arsenic-Resistant Bacteria Bacillus cereus SP21 and Bacillus toyonensis SP23: A Laboratory-Scale Study. 抗砷细菌蜡样芽孢杆菌SP21和toyonensis SP23对砷的解毒作用：实验室规模的研究。

IF 3.5 4区生物学

Journal of Basic Microbiology Pub Date : 2025-04-29 DOI: 10.1002/jobm.70042

Santhakumar Munusamy, Lokesh Elumalai, Gk Sri Ragavi, Ganesh Kumar Anbazhagan, Sakthi Thesai Annadurai, Mysoon M Al-Ansari, Saurav Dixit, Pudukadu Munusamy Ayyasamy, K Rajendran, Balagurunathan Ramasamy

{"title":"Arsenic Detoxification Using Arsenic-Resistant Bacteria Bacillus cereus SP21 and Bacillus toyonensis SP23: A Laboratory-Scale Study.","authors":"Santhakumar Munusamy, Lokesh Elumalai, Gk Sri Ragavi, Ganesh Kumar Anbazhagan, Sakthi Thesai Annadurai, Mysoon M Al-Ansari, Saurav Dixit, Pudukadu Munusamy Ayyasamy, K Rajendran, Balagurunathan Ramasamy","doi":"10.1002/jobm.70042","DOIUrl":"https://doi.org/10.1002/jobm.70042","url":null,"abstract":"Groundwater is the most important source for drinking, cooking and other household purposes. Agriculture is also largely dependent on groundwater. In this study, arsenic was detoxified by microbial oxidation using arsenic-resistant bacteria (ARB) in synthetic water. Two bacterial strains of Bacillus cereus (SP21) and Bacillus toyonensis (SP23), which are resistant to arsenic (As3+), were tested well up to 100 ppm. Optimization of arsenic for oxidation using different carbon sources (glucose, cellulose and starch), of which 1.5% cellulose was the best concentration, considering different temperatures and pH values. Oxidation of arsenite (As3+ to As5+) through a lab-scale column filled with immobilized bacterial cells and a synthetic medium through a lab-scale bioreactor. Samples were taken at regular intervals and processed for the oxidation of arsenite to arsenate (846 nm). The reduction of arsenate to arsenite (869 nm) was determined according to the corresponding protocol using the molybdenum blue method with a UV spectrophotometer. The selected arsenic-tolerant bacterial strains Bacillus cereus SP21 and Bacillus toyonensis SP23 achieved maximum removal of arsenic by the immobilized bacterial cell inclusion method.","PeriodicalId":15101,"journal":{"name":"Journal of Basic Microbiology","volume":" ","pages":"e70042"},"PeriodicalIF":3.5,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144011025","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

Biofilm Formation and Detoxification of Hexavalent Chromium by Bacillus subtilis: A Sustainable Approach to Bioremediation 枯草芽孢杆菌对六价铬的生物膜形成和解毒：一种可持续的生物修复方法。

IF 3.5 4区生物学

Journal of Basic Microbiology Pub Date : 2025-04-24 DOI: 10.1002/jobm.70022

Aththanayake Mudiyanselage K. C. B. Aththanayake, Mahendra Priyantha Deeyamulla, Mallavarapu Megharaj, Ileperumaarachchige Vayanga Nishani Rathnayake

{"title":"Biofilm Formation and Detoxification of Hexavalent Chromium by Bacillus subtilis: A Sustainable Approach to Bioremediation","authors":"Aththanayake Mudiyanselage K. C. B. Aththanayake, Mahendra Priyantha Deeyamulla, Mallavarapu Megharaj, Ileperumaarachchige Vayanga Nishani Rathnayake","doi":"10.1002/jobm.70022","DOIUrl":"10.1002/jobm.70022","url":null,"abstract":"<div>\u0000 \u0000 Hexavalent chromium [Cr(VI)] is a toxic environmental pollutant, primarily generated by industrial processes, posing a significant risk to biota. Effective detoxification of Cr(VI) is necessary before environmental discharge. This study focused on the Cr(VI) tolerance and detoxification potential of an isolated Bacillus subtilis strain KCBA07C10, along with the effects of Cr(VI) stress on its biofilm formation, and its potential application in bioremediation. The bacterial strain isolated from treated textile effluent, was subjected to growth studies in Cr(VI)-supplemented media with a low carbon source. Detoxification potential was assessed through Cr(VI) and total Cr removal analyses, while biofilm formation was evaluated using spectrophotometric assays and scanning electron microscopy. Results revealed that B. subtilis KCBA07C10 tolerates high Cr(VI) concentrations (> 16.0 mg/L) and achieves significant detoxification via bioreduction, removing nearly 88% of Cr(VI) even under nutrient-limited conditions. These findings highlight the strain's potential for bioremediation. Furthermore, quantitative assays demonstrated a positive correlation between Cr(VI) exposure and biofilm formation (p = 0.009, α = 0.05), suggesting an adaptive defense mechanism. This study highlights the potential of B. subtilis KCBA07C10 as an eco-friendly agent for Cr(VI) detoxification and bioremediation applications.\u0000 </div>","PeriodicalId":15101,"journal":{"name":"Journal of Basic Microbiology","volume":"65 6","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144063873","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

Targeting Agrobacterium tumefaciens: A Computational Study on Quorum Sensing Inhibition 以农杆菌为目标：群体感应抑制的计算研究。

IF 3.5 4区生物学

Journal of Basic Microbiology Pub Date : 2025-04-22 DOI: 10.1002/jobm.70041

Jayanthi Barasarathi, Kahkashan Perveen, Faheema Khan, M. Muthukumaran, Abhijit Debnath, Maheswari Behera, Moaakum Pongen, Riyaz Sayyed, Andrea Mastinu

{"title":"Targeting Agrobacterium tumefaciens: A Computational Study on Quorum Sensing Inhibition","authors":"Jayanthi Barasarathi, Kahkashan Perveen, Faheema Khan, M. Muthukumaran, Abhijit Debnath, Maheswari Behera, Moaakum Pongen, Riyaz Sayyed, Andrea Mastinu","doi":"10.1002/jobm.70041","DOIUrl":"10.1002/jobm.70041","url":null,"abstract":"Crown gall disease, caused by Agrobacterium tumefaciens, results in significant loss in agricultural productivity losses due to induced tumor-like growths on various crops. The virulence of A. tumefaciens is controlled by its quorum sensing (QS) system, specifically through the TraR protein, which regulates the expression of genes essential for pathogenicity and plasmid transfer. Beyond pathogenic interactions, QS plays a crucial role in the plant microbiome, influencing symbiosis, competition, and plant health. This study aimed to identify QS inhibitors (QSIs) that disrupt TraR-mediated signaling as a novel approach to mitigate crown gall disease while exploring broader implications for plant-microbe interactions. Using a combination of molecular docking, molecular dynamics (MD) simulations, and protein−protein interaction analysis, we screened a library of potential QSIs and identified N-phenylselenourea as a potent candidate with a binding affinity of −8 kcal/mol to TraR. MD simulations confirmed the stability of this compound within the TraR binding pocket, with strong interactions observed with key residues such as Tyr53 and Asp70. Gene Ontology (GO) enrichment analysis supported these findings, highlighting the disruption of critical pathogenic pathways. Our findings underscore the dual benefits of QSIs, offering a targeted strategy to control A. tumefaciens infections while potentially enhancing plant-microbiome interactions for improved plant health. This study lays the groundwork for developing sustainable agricultural practices by leveraging QS disruption to manage plant diseases and promote beneficial microbial communities.","PeriodicalId":15101,"journal":{"name":"Journal of Basic Microbiology","volume":"65 7","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jobm.70041","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144012591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Unraveling the Antagonistic Potential of Trichoderma for Combating Sclerotinia Rot of Mustard. 木霉对芥菜菌核病拮抗潜力的研究。

IF 3.5 4区生物学

Journal of Basic Microbiology Pub Date : 2025-04-21 DOI: 10.1002/jobm.70040

Priya Baruah, Anand Kumar Tewari, Ruchi Tripathi, Rahul Purohit

{"title":"Unraveling the Antagonistic Potential of Trichoderma for Combating Sclerotinia Rot of Mustard.","authors":"Priya Baruah, Anand Kumar Tewari, Ruchi Tripathi, Rahul Purohit","doi":"10.1002/jobm.70040","DOIUrl":"https://doi.org/10.1002/jobm.70040","url":null,"abstract":"Identification of a sustainable alternative for the restricted range of current antifungal agents is one of decisive objective in modern agriculture. Consequently, extensive global research are been ongoing for unraveling the eco-friendly and effective bio agents that will be capable of controlling pathogens. This study explores the efficacy of Trichoderma isolates in combating Sclerotinia rot in mustard, primarily caused by Sclerotinia sclerotiorum. In this study, 12 Trichoderma isolates (designated as PBTMSR) were isolated using baiting technique from mustard rhizospheric soil as potential biocontrol agents and their cultural, morphological, molecular characteristics were studied along with in vitro and in field antagonistic potential assessment for selecting most promising isolates for the management of this disease. Cultural, biochemical characterization of all the isolates confirmed that the all the isolates belonged to Trichoderma spp. and among these, 06 isolates namely PBTMSR4, 5, 6, 8, 9 and 10 were found most promising in their antagonistic potential against the test pathogen under in vitro conditions and were selected and evaluated under both artificial and natural epiphytotic field conditions for the management of Sclerotinia stem rot of mustard. Among Trichoderma isolate PBTMSR4 showed maximum reduction in Sclerotinia rot incidence (70.0% and 50.73%) with followed by PBTMSR8 (60.0% & 42.15%) under artificial and natural field conditions, respectively. The highest yield was with PBTMSR4 (23.70 q/ha) followed by PBTMSR8 (23.11 q/ha) as compared to check (21.48 q/ha) under natural field conditions. These two Trichoderma isolates namely, PBTMSR4 (OR351298) and PBTMSR8 (OR355825) were identified as Trichoderma afroharzianum and Trichoderma lixii respectively. The findings have practical implications for agriculture, suggesting a sustainable biocontrol strategy that can enhance crop resilience and can also contribute to integrated pest management practices.","PeriodicalId":15101,"journal":{"name":"Journal of Basic Microbiology","volume":" ","pages":"e70040"},"PeriodicalIF":3.5,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144006053","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}

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Oxidative Stress Leads to Fur-Mediated Activation of ftnA in Escherichia coli Independently of OxyR/SoxRs Regulators. 氧化应激导致毛皮介导的大肠杆菌中ftnA的激活，而不依赖于OxyR/SoxRs调节因子。

IF 3.5 4区生物学

Journal of Basic Microbiology Pub Date : 2025-04-21 DOI: 10.1002/jobm.70038

Valeriia Olegovna Matveeva, Anna Dmitrievna Grebennikova, Daniil Igorevich Sakharov, Vadim Valerevich Fomin, Ilya Vladimirovich Manukhov, Sergey Vladimirovich Bazhenov

{"title":"Oxidative Stress Leads to Fur-Mediated Activation of ftnA in Escherichia coli Independently of OxyR/SoxRs Regulators.","authors":"Valeriia Olegovna Matveeva, Anna Dmitrievna Grebennikova, Daniil Igorevich Sakharov, Vadim Valerevich Fomin, Ilya Vladimirovich Manukhov, Sergey Vladimirovich Bazhenov","doi":"10.1002/jobm.70038","DOIUrl":"https://doi.org/10.1002/jobm.70038","url":null,"abstract":"Ferritin FtnA is the main scavenger of Fe2+ and storage of Fe3+ in bacterial cells, together with Dps and Bfr it prevents the Fenton reaction. To study the regulation of Escherichia coli ftnA expression under oxidative stress conditions, we used PftnA-luxCDABE transcriptional fusion. It was shown that PftnA is induced after the addition of oxidative stress inducers. This activation was independent of the presence of functional oxyR and soxR genes in the cell, but was completely abolished in the absence of fur. The response is amplified in the ftnA mutant and is diminished in the FtnA-overproducing strain, which indicates that iron sequestration by apoferritin blocks the response and helps to cope with stress consequences. Comparison of the activation kinetics of the PfecA and PftnA promoters, responsible for iron uptake and storage regulation, showed that the addition of H2O2 initially leads to the inactivation of Fur, causing derepression of iron uptake and, as a consequence, an increase in intracellular iron. As the redox balance in the cell is restored, Fur is reactivated, which leads to the induction of ftnA expression. Thus, oxidative stress leads to PftnA activation, which is mediated by Fur and time-delayed in comparison with OxyR-response.","PeriodicalId":15101,"journal":{"name":"Journal of Basic Microbiology","volume":" ","pages":"e70038"},"PeriodicalIF":3.5,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143968000","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}

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Antifungal Efficacy of Cordyceps militaris-Mycometabolites Against Major Fungal Diseases of Withania somnifera. 军国冬虫夏草-真菌代谢物对藜麦主要真菌病害的抑菌作用。

IF 3.5 4区生物学

Journal of Basic Microbiology Pub Date : 2025-04-20 DOI: 10.1002/jobm.70037

Harshita Gaurav, Divyanshu Yadav, Rakesh Pandey, Pradeep Kumar, Amritesh Chandra Shukla

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