Journal of microbiology and biotechnology最新文献

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Efficient CRISPR-Cas12f1-Mediated Multiplex Bacterial Genome Editing via Low-Temperature Recovery. 通过低温恢复实现高效 CRISPR-Cas12f1 介导的多重细菌基因组编辑。
IF 2.5 4区 生物学
Journal of microbiology and biotechnology Pub Date : 2024-07-28 Epub Date: 2024-06-14 DOI: 10.4014/jmb.2403.03033
Se Ra Lim, Hyun Ju Kim, Sang Jun Lee
{"title":"Efficient CRISPR-Cas12f1-Mediated Multiplex Bacterial Genome Editing via Low-Temperature Recovery.","authors":"Se Ra Lim, Hyun Ju Kim, Sang Jun Lee","doi":"10.4014/jmb.2403.03033","DOIUrl":"10.4014/jmb.2403.03033","url":null,"abstract":"<p><p>CRISPR-Cas system is being used as a powerful genome editing tool with developments focused on enhancing its efficiency and accuracy. Recently, the miniature CRISPR-Cas12f1 system, which is small enough to be easily loaded onto various vectors for cellular delivery, has gained attention. In this study, we explored the influence of temperature conditions on multiplex genome editing using CRISPR-Cas12f1 in an <i>Escherichia coli</i> model. It was revealed that when two distinct targets in the genome are edited simultaneously, the editing efficiency can be enhanced by allowing cells to recover at a reduced temperature during the editing process. Additionally, employing 3'-end truncated sgRNAs facilitated the simultaneous single-nucleotide level editing of three targets. Our results underscore the potential of optimizing recovery temperature and sgRNA design protocols in developing more effective and precise strategies for multiplex genome editing across various organisms.</p>","PeriodicalId":16481,"journal":{"name":"Journal of microbiology and biotechnology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11294644/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141331178","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
Role of Long Intergenic Nonprotein-Coding RNA 00511 in Nod-Like Receptor Protein Pyrin Domain 3-Induced Chondrocyte Pyroptosis via the MicroRNA-9-5p/FUT1 Axis. 长基因间非蛋白编码 RNA 00511 在通过 MicroRNA-9-5p/FUT1 轴诱导软骨细胞凋亡中的作用
IF 2.5 4区 生物学
Journal of microbiology and biotechnology Pub Date : 2024-07-28 Epub Date: 2024-04-15 DOI: 10.4014/jmb.2312.12014
Tianjun Zhai, Zengqiao Zhang, Xiaoshen Hu, Dongyi He, Wei Feng
{"title":"Role of Long Intergenic Nonprotein-Coding RNA 00511 in Nod-Like Receptor Protein Pyrin Domain 3-Induced Chondrocyte Pyroptosis via the MicroRNA-9-5p/FUT1 Axis.","authors":"Tianjun Zhai, Zengqiao Zhang, Xiaoshen Hu, Dongyi He, Wei Feng","doi":"10.4014/jmb.2312.12014","DOIUrl":"10.4014/jmb.2312.12014","url":null,"abstract":"<p><p>This study aimed to determine the function of LINC00511 in Nod-Like Receptor Pyrin Domain 3 inflammasome-mediated chondrocyte pyroptosis via the regulation of miR-9-5p and FUT 1. Chondrocyte inflammatory injury was induced by treating chondrocytes with LPS. Afterwards, the levels of IL-1β and IL-18, the expression of NLRP3, ASC, Caspase-1, and GSDMD, cell viability, and LDH activity in chondrocytes were assessed. LINC00511 expression in LPS-treated chondrocytes was detected, and LINC00511 was subsequently silenced to analyse its role in chondrocyte pyroptosis. The subcellular localization of LINC00511 was predicted and verified. Furthermore, the binding relationships between LINC00511 and miR-9-5p and between miR-9-5p and FUT1 were validated. LINC00511 regulated NLRP3 inflammasome-mediated chondrocyte pyroptosis through the miR-9-5p/FUT1 axis. LPS-treated ATDC5 cells exhibited elevated levels of inflammatory injury; increased levels of NLRP3, ASC, Caspase-1, and GSDMD; reduced cell viability; increased LDH activity; and increased LINC00511 expression, while LINC00511 silencing inhibited the NLRP3 inflammasome to restrict LPS-induced chondrocyte pyroptosis. Next, LINC00511 sponged miR-9-5p, which targeted FUT1. Silencing LINC00511 suppressed FUT1 by upregulating miR-9-5p. Additionally, downregulation of miR-9-5p or overexpression of FUT1 neutralized the suppressive effect of LINC00511 knockdown on LPS-induced chondrocyte pyroptosis. Silencing LINC00511 inhibited the NLRP3 inflammasome to quench Caspase-1-dependent chondrocyte pyroptosis in OA by promoting miR-9-5p and downregulating FUT1.</p>","PeriodicalId":16481,"journal":{"name":"Journal of microbiology and biotechnology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11294640/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141457473","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
MBNL3 Acts as a Target of miR-302e to Facilitate Cell Proliferation, Invasion and Angiogenesis of Gastric Adenocarcinoma via AKT/VEGFA Pathway. MBNL3 作为 miR-302e 的靶点,通过 AKT/VEGFA 通路促进胃腺癌的细胞增殖、侵袭和血管生成
IF 2.5 4区 生物学
Journal of microbiology and biotechnology Pub Date : 2024-07-28 Epub Date: 2024-05-30 DOI: 10.4014/jmb.2401.01027
Weiping Tang, Can Huang, Bing Jiang, Junjun Lin, Yecai Lu
{"title":"MBNL3 Acts as a Target of miR-302e to Facilitate Cell Proliferation, Invasion and Angiogenesis of Gastric Adenocarcinoma via AKT/VEGFA Pathway.","authors":"Weiping Tang, Can Huang, Bing Jiang, Junjun Lin, Yecai Lu","doi":"10.4014/jmb.2401.01027","DOIUrl":"10.4014/jmb.2401.01027","url":null,"abstract":"<p><p>Gastric adenocarcinoma (GAC) is a common, malignant type of tumor in human, and is accompanied with higher mortality. Muscleblind-like 3 (MBNL3) was found to be a pivotal participator in aggravating this cancer's progression. However, the regulatory effects of MBNL3 on GAC development have not been investigated. We therefore sought to study the functions of MBNL3 in GAC progression. In this study, it was demonstrated that MBNL3 exhibited higher expression, and GAC patients with higher MBNL3 expression had poor prognosis. Overexpression of MBNL3 facilitated, and knockdown of MBNL3 suppressed cell proliferation, invasion, and angiogenesis in GAC. Further experiments showed that miR-302e targets MBNL3. Rescue assays then uncovered that the miR-302e/MBNL3 axis aggravated GAC progression. In addition, MBNL3 activated the AKT/VEGFA pathway, and the suppressive regulatory impacts of MBNL3 knockdown on GAC cell proliferation, invasion, and angiogenesis could be rescued after 740 Y-P treatment. Through in vivo assay, it was proved that MBNL3 accelerated tumor growth in vivo. In conclusion, MBNL3 acted as a target of miR-302e to facilitate cell proliferation, invasion, and angiogenesis of gastric adenocarcinoma through the AKT/VEGFA pathway. Our findings illustrate that MBNL3 may be an available bio-target for GAC treatment.</p>","PeriodicalId":16481,"journal":{"name":"Journal of microbiology and biotechnology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11294653/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141492260","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
The In Vitro Promoting Angiogenesis Roles of Exosomes Derived from the Protoscoleces of Echinococcus multilocularis. 从多棘球蚴原孢子中提取的外泌体在体外促进血管生成的作用
IF 2.5 4区 生物学
Journal of microbiology and biotechnology Pub Date : 2024-07-28 Epub Date: 2024-05-23 DOI: 10.4014/jmb.2403.03042
Wenjing Zhou, Xiang Li, Xinqi Yang, Bin Ye
{"title":"The In Vitro Promoting Angiogenesis Roles of Exosomes Derived from the Protoscoleces of <i>Echinococcus multilocularis</i>.","authors":"Wenjing Zhou, Xiang Li, Xinqi Yang, Bin Ye","doi":"10.4014/jmb.2403.03042","DOIUrl":"10.4014/jmb.2403.03042","url":null,"abstract":"<p><p>Alveolar echinococcosis (AE) is a persistent parasite condition that causes the formation of tumor-like growths. It is a challenge to treat the disease. These growths need neovascularization to get their oxygen and nutrients, and the disease is prolonged and severe. Considerable research has been conducted on exosomes and their interactions with <i>Echinococcus multilocularis</i> in the context of immunological evasion by the host. However, the extent of their involvement in angiogenesis needs to be conducted. The primary objective of this investigation was to preliminarily explore the effect of exosomes produced from <i>E. multilocularis</i> protoscoleces (PSC-exo) on angiogenesis, to elucidate the mechanism of their roles in the regulation of the downstream pathway of VEGFA activation, and to provide ideas for the development of novel treatments for AE. The study evaluated the impact of PSC-exo increases proliferation, migration, invasion, and tube formation of HUVECs at concentrations of up to 50 μg/ml. In addition, the study sought to validate the findings in vivo. This effect involved increased VEGFA expression at gene and protein levels and AKT/mTOR pathway activation. PSC-exo are crucial in promoting angiogenesis through VEGFA upregulation and AKT/mTOR signaling. This research contributes to our knowledge of neovascularization in AE.</p>","PeriodicalId":16481,"journal":{"name":"Journal of microbiology and biotechnology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11294651/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141300849","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
The Impact of Calcium Depletion on Proliferation of Chlorella sorokiniana Strain DSCG150. 钙耗竭对小球藻 DSCG150 菌株增殖的影响
IF 2.5 4区 生物学
Journal of microbiology and biotechnology Pub Date : 2024-07-28 Epub Date: 2024-05-29 DOI: 10.4014/jmb.2403.03018
Soontae Kang, Seungchan Cho, Danhee Jeong, Urim Kim, Jeongsug Kim, Sangmuk Lee, Yuchul Jung
{"title":"The Impact of Calcium Depletion on Proliferation of <i>Chlorella sorokiniana</i> Strain DSCG150.","authors":"Soontae Kang, Seungchan Cho, Danhee Jeong, Urim Kim, Jeongsug Kim, Sangmuk Lee, Yuchul Jung","doi":"10.4014/jmb.2403.03018","DOIUrl":"10.4014/jmb.2403.03018","url":null,"abstract":"<p><p>This study analyzed the effects of Ca<sup>2+</sup> metal ions among culture medium components on the <i>Chlorella sorokiniana</i> strain DSCG150 strain cell growth. The <i>C. sorokiniana</i> strain DSCG150 grew based on a multiple fission cell cycle and growth became stagnant in the absence of metal ions in the medium, particularly Ca<sup>2+</sup>. Flow cytometry and confocal microscopic image analysis results showed that in the absence of Ca<sup>2+</sup>, cell growth became stagnant as the cells accumulated into four autospores and could not transform into daughter cells. Genetic analysis showed that the absence of Ca<sup>2+</sup> caused upregulation of calmodulin (<i>calA</i>) and cell division control protein 2 (<i>CDC2_1</i>) genes, and downregulation of origin of replication complex subunit 6 (<i>ORC6</i>) and dual specificity protein phosphatase CDC14A (<i>CDC14A</i>) genes. Analysis of gene expression patterns by qRT-PCR showed that the absence of Ca<sup>2+</sup> did not affect cell cycle progression up to 4n autospore, but it inhibited <i>Chlorella</i> cell fission (liberation of autospores). The addition of Ca<sup>2+</sup> to cells cultivated in the absence of Ca<sup>2+</sup> resulted in an increase in n cell population, leading to the resumption of <i>C. sorokiniana</i> growth. These findings suggest that Ca<sup>2+</sup> plays a crucial role in the fission process in <i>Chlorella</i>.</p>","PeriodicalId":16481,"journal":{"name":"Journal of microbiology and biotechnology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11294638/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141492261","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
Protective Effects of the Postbiotic Levilactobacillus brevis BK3 against H2O2-Induced Oxidative Damage in Skin Cells. 后益生菌 Levilactobacillus brevis BK3 对 H2O2- 诱导的皮肤细胞氧化损伤的保护作用
IF 2.5 4区 生物学
Journal of microbiology and biotechnology Pub Date : 2024-07-28 Epub Date: 2024-05-24 DOI: 10.4014/jmb.2403.03010
Young-Sun Lee, Su-Jeong Lee, Won Je Jang, Eun-Woo Lee
{"title":"Protective Effects of the Postbiotic <i>Levilactobacillus brevis</i> BK3 against H<sub>2</sub>O<sub>2</sub>-Induced Oxidative Damage in Skin Cells.","authors":"Young-Sun Lee, Su-Jeong Lee, Won Je Jang, Eun-Woo Lee","doi":"10.4014/jmb.2403.03010","DOIUrl":"10.4014/jmb.2403.03010","url":null,"abstract":"<p><p>Postbiotics have various functional effects, such as antioxidant, anti-inflammatory, and anti-obesity. <i>Levilactobacillus brevis</i> BK3, the subject of this study, was derived from lactic acid bacteria isolated from Kimchi, a traditional Korean fermented food. The antioxidant activity of BK3 was confirmed through the measurements of 2,2-diphenyl-1-picryl-hydrazyl (DPPH), 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), and total antioxidant capacity (TAC). The wrinkle improvement effect was validated by assessing elastase inhibitory activity and collagenase inhibitory activity. The intracellular activity was confirmed using human keratinocytes (HaCaT) and human fibroblasts (HFF-1). BK3 protects skin cells from oxidative stress induced by H<sub>2</sub>O<sub>2</sub> and reduces intracellular reactive oxygen species (ROS) production. In addition, the expressions of the antioxidant genes superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) were upregulated. Meanwhile, matrix metalloproteinase-1 (MMP-1) and collagen type I alpha 1 (COL1A1), involved in collagen degradation and synthesis, were significantly regulated. These results suggest the possibility of utilizing BK3 as a functional ingredient with antioxidant and wrinkle-improving effects.</p>","PeriodicalId":16481,"journal":{"name":"Journal of microbiology and biotechnology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11294649/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141331179","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
Anti-Inflammatory Effect of Korean Soybean Sauce (Ganjang) on Mice with Induced Colitis. 韩国酱油(Ganjang)对诱导性结肠炎小鼠的抗炎作用
IF 2.5 4区 生物学
Journal of microbiology and biotechnology Pub Date : 2024-07-28 Epub Date: 2024-06-11 DOI: 10.4014/jmb.2404.04020
Hyeon-Ji Lim, In-Sun Park, Ji Won Seo, Gwangsu Ha, Hee-Jong Yang, Do-Youn Jeong, Seon-Young Kim, Chan-Hun Jung
{"title":"Anti-Inflammatory Effect of Korean Soybean Sauce (Ganjang) on Mice with Induced Colitis.","authors":"Hyeon-Ji Lim, In-Sun Park, Ji Won Seo, Gwangsu Ha, Hee-Jong Yang, Do-Youn Jeong, Seon-Young Kim, Chan-Hun Jung","doi":"10.4014/jmb.2404.04020","DOIUrl":"10.4014/jmb.2404.04020","url":null,"abstract":"<p><p>Inflammatory bowel disease (IBD), characterized by chronic inflammation of the gut, is caused by several factors. Among these factors, microbial factors are correlated with the gut microbiota, which produces short-chain fatty acids (SCFAs) via anaerobic fermentation. Fermented foods are known to regulate the gut microbiota composition. Ganjang (GJ), a traditional fermented Korean soy sauce consumed worldwide, has been shown to exhibit antioxidant, anticancer, anti-colitis, and antihypertensive activities. However, its effects on the gut microbiota remain unknown. In the present study, we aimed to compare the anti-inflammatory effects of GJ manufactured using different methods and investigate its effect on SCFA production in the gut. To evaluate the anti-inflammatory effects of GJ in the gut, we performed animal experiments using a mouse model of dextran sulfate sodium (DSS)-induced colitis. All GJ samples attenuated DSS-induced colitis symptoms, including reduced colonic length, by suppressing the expression of inflammatory cytokines. In addition, GJ administration modulated SCFA production in the DSS-induced colitis model. Overall, GJ exerted anti-inflammatory effects by reducing DSS-induced symptoms via regulation of inflammation and modulation of SCFA levels in a DSS-induced colitis model. Thus, GJ is a promising fermented food with the potential to prevent IBD.</p>","PeriodicalId":16481,"journal":{"name":"Journal of microbiology and biotechnology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11294641/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141498276","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
Deficiency in Opu Systems Imparts Salt-Sensitivity to Weizmannia coagulans. Opu 系统的缺陷使凝结魏茨曼藻对盐敏感。
IF 2.5 4区 生物学
Journal of microbiology and biotechnology Pub Date : 2024-07-28 Epub Date: 2024-06-07 DOI: 10.4014/jmb.2404.04016
Tao Kim, Sojeong Heo, Jong-Hoon Lee, Do-Won Jeong
{"title":"Deficiency in Opu Systems Imparts Salt-Sensitivity to <i>Weizmannia coagulans</i>.","authors":"Tao Kim, Sojeong Heo, Jong-Hoon Lee, Do-Won Jeong","doi":"10.4014/jmb.2404.04016","DOIUrl":"10.4014/jmb.2404.04016","url":null,"abstract":"<p><p><i>Weizmannia coagulans</i> can be used as a starter strain in fermented foods or as a probiotic. However, it is salt-sensitive. Here, <i>W. coagulans</i> genomes were compared with the genomes of strains of <i>Bacillus</i> species (<i>B. licheniformis</i>, <i>B. siamensis</i>, <i>B. subtilis</i>, and <i>B. velezensis</i>) that were isolated from fermented foods and show salt tolerance, to identify the basis for the salt-sensitivity of <i>W. coagulans</i>. Osmoprotectant uptake (Opu) systems transport compatible solutes into cells to help them tolerate osmotic stress. <i>B. siamensis</i>, <i>B. subtilis</i>, and <i>B. velezensis</i> each possess five Opu systems (OpuA, OpuB, OpuC, OpuD, and OpuE); <i>B. licheniformis</i> has all except OpuB. However, <i>W. coagulans</i> only has the OpuC system. Based on these findings, the <i>opuA</i> and <i>opuB</i> operons, and the <i>opuD</i> and <i>opuE</i> genes, were amplified from <i>B. velezensis</i>. Expression of each of these systems, respectively, in <i>W. coagulans</i> increased salt-tolerance. <i>W. coagulans</i> expressing <i>B. velezensis</i> <i>opuA</i>, <i>opuD</i>, or <i>opuE</i> grew in 10.5% NaCl (w/v), whereas wild-type <i>W. coagulans</i> could not grow in 3.5% NaCl. The salt resistance of <i>B. subtilis</i> was also increased by overexpression of <i>B. velezensis</i> <i>opuA</i>, <i>opuB</i>, <i>opuD</i>, or <i>opuE</i>. These results indicate that the salt-susceptibility of <i>W. coagulans</i> arises because it is deficient in Opu systems.</p>","PeriodicalId":16481,"journal":{"name":"Journal of microbiology and biotechnology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11294647/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141498279","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
Dual Application of p-Nitrophenol Alkanoate-Based Assay for Soil Selection and Screening of Microbial Strains for Bioplastic Degradation. 基于对硝基苯酚烷酸酯测定法的双重应用,用于土壤筛选和生物塑料降解微生物菌株的筛选。
IF 2.5 4区 生物学
Journal of microbiology and biotechnology Pub Date : 2024-07-28 Epub Date: 2024-05-30 DOI: 10.4014/jmb.2403.03013
Nara Shin, Jinok Oh, Suwon Kim, Yeda Lee, Yuni Shin, Suhye Choi, Shashi Kant Bhatia, Yung-Hun Yang
{"title":"Dual Application of <i>p</i>-Nitrophenol Alkanoate-Based Assay for Soil Selection and Screening of Microbial Strains for Bioplastic Degradation.","authors":"Nara Shin, Jinok Oh, Suwon Kim, Yeda Lee, Yuni Shin, Suhye Choi, Shashi Kant Bhatia, Yung-Hun Yang","doi":"10.4014/jmb.2403.03013","DOIUrl":"10.4014/jmb.2403.03013","url":null,"abstract":"<p><p>With an increase in the commercialization of bioplastics, the importance of screening for plastic-degrading strains and microbes has emerged. Conventional methods for screening such strains are time-consuming and labor-intensive. Therefore, we suggest a method for quickly and effectively screening plastic-degrading microbial strains through dual esterase assays for soil and isolated strains, using <i>p</i>-nitrophenyl alkanoates as substrates. To select microbe-abundant soil, the total amount of phospholipid fatty acids (PLFAs) included in each soil sample was analyzed, and esterase assays were performed for each soil sample to compare the esterase activity of each soil. In addition, by analyzing the correlation coefficients and sensitivity between the amount of PLFAs and the degree of esterase activity according to the substrate, it was confirmed that substrate <i>p</i>NP-C2 is the most useful index for soil containing several microbes having esterase activity. In addition, esterase assays of the isolated strains allowed us to select the most active strain as the degrading strain, and 16S rRNA results confirmed that it was <i>Bacillus</i> sp. N04 showed the highest degradation activity for polybutylene succinate (PBS) as measured in liquid culture for 7 days, with a degradation yield of 99%. Furthermore, <i>Bacillus</i> sp. N04 showed degradation activity against various bioplastics. We propose the dual application of <i>p</i>-nitrophenyl alkanoates as an efficient method to first select the appropriate soil and then to screen for plastic-degrading strains in it, and conclude that <i>p</i>NP-C2 in particular, is a useful indicator.</p>","PeriodicalId":16481,"journal":{"name":"Journal of microbiology and biotechnology","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11294652/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141555025","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
Advancements in Antiviral Drug Development: Comprehensive Insights into Design Strategies and Mechanisms Targeting Key Viral Proteins. 抗病毒药物研发的进展:全面了解针对关键病毒蛋白的设计策略和机制。
IF 2.5 4区 生物学
Journal of microbiology and biotechnology Pub Date : 2024-07-28 Epub Date: 2024-04-29 DOI: 10.4014/jmb.2403.03008
Wang Hangyu, Li Panpan, Shen Jie, Wang Hongyan, Wei Linmiao, Han Kangning, Shi Yichen, Wang Shuai, Wang Cheng
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