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Impact of planting Phallus rubrovolvatus on physicochemical and microbial properties and functional groups of soil 种植阳草对土壤理化、微生物特性及官能团的影响
4区 生物学 Q1 Immunology and Microbiology Pub Date : 2023-09-19 DOI: 10.1186/s13213-023-01727-6
Xu Gao, Mengjiao Ding, Tao Wu, Xiaohua Deng, Qiang Li
Abstract Purpose Soil microbial communities are critically important to agricultural ecosystems. The present study aimed to evaluate the changes in soil microbial community composition and functional groups after planting Phallus rubrovolvatus . Methods Illumina platform were adopted to characterize the bacterial and fungal diversity in the soil cropped with P. rubrovolvatus for 0 and 1 year. Results The results showed that planting P. rubrovolvatus reduced the bacterial and fungal diversity in the soil, and the dynamics of the soil bacterial diversity changed more drastically. This study also indicated that, as keystone taxa, the dominant bacteria ( Actinobacteria , Sphingomonas , Xanthobacteraceae , and Gemmatimonadaceae ) and dominant fungi ( Mortierellales and Eurotiales ) served as a key component in the network of soil microbial communities. Moreover, the bacterial and fungal communities in the soil planted with P. rubrovolvatus formed more similar and weak networks. Conclusion Planting P. rubrovolvatus significantly influenced the structure and composition of microbial communities. In the future, we will focus on ways to improve the soil environment after planting P. rubrovolvatus .
摘要目的土壤微生物群落对农业生态系统至关重要。本研究旨在评价种植阳草后土壤微生物群落组成和功能群的变化。方法采用Illumina平台对种植0年和1年的紫荆土壤进行细菌和真菌多样性分析。结果结果表明,种植紫荆降低了土壤细菌和真菌的多样性,土壤细菌多样性动态变化更为剧烈。研究还表明,优势菌(放线菌科、鞘单胞菌科、黄菌科和芽孢单胞菌科)和优势真菌(Mortierellales和Eurotiales)是土壤微生物群落网络的关键组成部分,是土壤微生物群落网络的关键组成部分。此外,种植紫荆土壤的细菌和真菌群落形成了更相似和更弱的网络。结论种植紫荆对土壤微生物群落结构和组成有显著影响。今后,我们将重点研究如何改善红叶胡杨种植后的土壤环境。
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引用次数: 0
Effect of Purpureocillium lilacinum on inter-root soil microbial community and metabolism of tobacco 紫丁香对烟草根间土壤微生物群落及代谢的影响
4区 生物学 Q1 Immunology and Microbiology Pub Date : 2023-09-16 DOI: 10.1186/s13213-023-01734-7
Jili Zhang, Jiayi Song, Jianyu Wei, Shi Qi, Junlin Li, Yabo Jin, Xinbo Luan, Ping Li, Jian Yan
Abstract Background Numerous chemical pesticides have been used in agricultural production to combat crop diseases and pests. Despite ensuring certain economic advantages, they have also resulted in issues like environmental contamination, declining soil quality, and pesticide residues. Because biological control is environmentally friendly and difficult to acquire resistance to, it has been used in practice recently. Methods In this study, we isolated the endophytic fungus Purpureocillium lilacinum from Portulaca oleracea L . , which was previously found to have inhibitory effects on soil pathogens in tobacco fields. To find out how the biocontrol agent P. lilacinum affects soil microorganisms and plant metabolism in tobacco cultivation, we used amplicon sequencing technology and gas chromatography-mass spectrometry to look at the structure of soil microbial communities and the networks of interactions between microorganisms and metabolites in the inter-rhizosphere soil of tobacco fields treated with different amounts of P. lilacinum . Results The findings showed that there was a trend toward less microbial diversity among inter-root microorganisms as solid-state fermentation (SSF) products of P. lilacinum increased; however, submerged fermentation (SmF) had no discernible impact on microbial diversity when compared to the direct use of SSF. Additionally, the relationship between inter-root fungi and volatile compounds in tobacco leaves was dominated by a negative correlation. Conclusions The result demonstrated that P. lilacinum ’s antagonistic interaction in the inter-rhizosphere microbial community was dominant and valuable for biopesticide application. P. lilacinum can work more effectively on tobacco roots by using SSF products. P. lilacinum ’s opposition to fungal colonies may enhance the volatile chemicals in tobacco leaves. These provide some implications for the biocontrol application of P. lilacinum .
摘要背景在农业生产中,为了防治作物病虫害,使用了大量的化学农药。尽管确保了一定的经济优势,但它们也导致了环境污染、土壤质量下降和农药残留等问题。由于生物防治具有环境友好、不易产生抗药性等特点,近年来得到了广泛的应用。方法从马齿苋(Portulaca oleracea L .)中分离得到一种内生真菌紫丁香紫霉(Purpureocillium lilacinum)。在烟草田中发现对土壤病原菌有抑制作用。为了解生物防治剂丁香花对烟草种植中土壤微生物和植物代谢的影响,采用扩增子测序技术和气相色谱-质谱联用技术,研究了不同剂量丁香花处理烟田根际土壤微生物群落结构及微生物与代谢物的相互作用网络。结果随着紫丁香菌固态发酵(SSF)产物的增加,根间微生物多样性呈减少趋势;然而,与直接使用深层发酵相比,深层发酵(SmF)对微生物多样性没有明显的影响。根间真菌与烟叶挥发性物质的关系以负相关为主。结论紫丁香在根际微生物群落中具有拮抗作用,具有一定的生物农药应用价值。使用SSF产品后,紫丁香叶菌对烟草根的作用更有效。紫丁香对真菌菌落的拮抗作用可能会增加烟叶中挥发性化学物质的含量。这些结果对紫丁香菌的生物防治应用具有一定的指导意义。
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引用次数: 0
Exploratory study of volatile fatty acids and the rumen-and-gut microbiota of dairy cows in a single farm, with respect to subclinical infection with bovine leukemia virus 牛白血病病毒亚临床感染对单一农场奶牛挥发性脂肪酸及瘤胃和肠道微生物群的影响的探索性研究
4区 生物学 Q1 Immunology and Microbiology Pub Date : 2023-09-16 DOI: 10.1186/s13213-023-01737-4
Takehito Suzuki, Hironobu Murakami, Jumpei Uchiyama, Reiichiro Sato, Iyo Takemura-Uchiyama, Masaya Ogata, Kazuyuki Sogawa, Hiroho Ishida, Apichart Atipairin, Osamu Matsushita, Makoto Nagai
Abstract Background Subclinical infection with bovine leukemia virus (BLV) in cows can cause economic losses in milk and meat production in many countries, as BLV-related negative effects. The volatile fatty acids (VFAs) and microbiota present in the digestive tracts of cows can contribute to cow health. Here, we exploratorily investigated the VFAs and microbiota in the rumen and gut with respect to subclinical BLV infection using cows housed at a single farm. Results We analyzed a herd of 38 cows kept at one farm, which included 15 uninfected and 23 BLV-infected cows. First, the analysis of the VFAs in the rumen, gut, and blood revealed an absence of statistically significant differences between the uninfected and BLV-infected groups. Thus, BLV infection did not cause major changes in VFA levels in all tested specimens. Next, we analyzed the rumen and gut microbiota. The analysis of the microbial diversity revealed a modest difference between the uninfected and BLV-infected groups in the gut; by contrast, no differences were observed in the rumen. In addition, the investigation of the bacteria that were predominant in the uninfected and BLV-infected groups via a differential abundance analysis showed that no significant bacteria were present in either of the microbiota. Thus, BLV infection possibly affected the gut microbiota to a small extent. Moreover, bacterial associations were compared between the uninfected and BLV-infected groups. The results of this analysis suggested that BLV infection affected the equilibrium of the bacterial associations in both microbiota, which might be related to the BLV-related negative effects. Thus, BLV infection may negatively affect the equilibrium of bacterial associations in both microbiota. Conclusions Subclinical BLV infection is likely to affect the rumen and gut microbiota, which may partly explain the BLV-related negative effects.
摘要背景在许多国家,奶牛亚临床感染牛白血病病毒(BLV)会造成牛奶和肉类生产的经济损失。奶牛消化道中存在的挥发性脂肪酸(VFAs)和微生物群有助于奶牛的健康。在这里,我们探索性地研究了瘤胃和肠道中VFAs和微生物群与亚临床BLV感染的关系,研究对象是同一农场饲养的奶牛。结果我们分析了一个农场饲养的38头奶牛,其中15头未感染blv, 23头感染blv。首先,对瘤胃、肠道和血液中VFAs的分析显示,未感染组和blv感染组之间没有统计学上的显著差异。因此,BLV感染在所有测试标本中没有引起VFA水平的重大变化。接下来,我们分析了瘤胃和肠道微生物群。对肠道微生物多样性的分析显示,未感染组和blv感染组之间存在适度差异;相比之下,在瘤胃中没有观察到差异。此外,通过差异丰度分析,对未感染组和blv感染组中占优势的细菌进行了调查,结果表明,在两种微生物群中都没有显著的细菌存在。因此,BLV感染可能在很小程度上影响肠道微生物群。此外,还比较了未感染组和blv感染组之间的细菌关联。这一分析结果表明,BLV感染影响了两种微生物群中细菌关联的平衡,这可能与BLV相关的负面影响有关。因此,BLV感染可能会对两种微生物群中细菌关联的平衡产生负面影响。结论亚临床BLV感染可能影响瘤胃和肠道微生物群,这可能部分解释了BLV相关的负面影响。
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引用次数: 0
Diaporthe cotoneastri and Ilyonectria cyclaminicola endophytes promote the growth, development, and accumulation of active components of Epimedium koreanum Nakai host plants in field experiments 在田间试验中,棉花和环绿拟茵内生菌促进了韩国淫羊藿寄主植物的生长发育和活性成分的积累
4区 生物学 Q1 Immunology and Microbiology Pub Date : 2023-09-12 DOI: 10.1186/s13213-023-01733-8
Jiawen Chen, Xing Hu, Yang Bai, Hanning Liu, Xin Zhuang, Junjie Guo, Jinglei Xiao
Abstract Purpose This study aims to explore the effects of two endophytes of Epimedium koreanum Nakai on host plant growth and development and medicinal material quality and to promote the growth and development of ingredients derived from Epimedium koreanum Nakai . Methods The effects on the biomass, photosynthesis parameters, chlorophyll fluorescence parameters, activity of key enzymes, and active components in the process of growth and development in Korea were examined. Results From the analysis of biomass and photosynthesis data, both the S3 ( Diaporthe cotoneastri ) and S10 ( Ilyonectria cyclaminicola ) strains promoted the growth of Epimedium koreanum Nakai . Redundancy analysis (RDA) showed that the activity of S3 and the content of epimedin A were negatively correlated and that the peroxidase (POD) activity was positively correlated with the total flavonoid content. Conclusion The application of the S3 ( Diaporthe cotoneastri ) and S10 ( Ilyonectria cyclaminicola ) strains can significantly increase the biomass and contents of total flavonoids, icariin, epimedin B, and epimedin C, but not epimedin A, in Epimedium koreanum Nakai host plants grown in field conditions. The S10 strain promotes faster growth of Epimedium koreanum Nakai than the S3 strain, and flavonoid 3-hydroxylase (F3H) catalyzes the synthesis of epimedin A and icariin by different pathways using the same substrate. POD plays a key role in total flavonoid synthesis in Epimedium koreanum Nakai .
摘要目的探讨韩国淫羊藿(Epimedium koreanum Nakai)两种内生菌对寄主植物生长发育和药材品质的影响,促进淫羊藿(Epimedium koreanum Nakai)衍生成分的生长发育。方法研究韩国产植物生长发育过程中对生物量、光合参数、叶绿素荧光参数、关键酶活性和有效成分的影响。结果从生物量和光合作用数据分析,S3 (Diaporthe cotoneastri)和S10 (Ilyonectria cyclaminicola)菌株均能促进韩国淫羊藿(Epimedium koreanum Nakai)的生长。冗余分析(RDA)结果表明,S3活性与epimedin A含量呈负相关,过氧化物酶(POD)活性与总黄酮含量呈正相关。结论在大田条件下,应用S3 (Diaporthe cotoneastri)和S10 (ilyonecetria cyclaminicola)菌株可显著提高韩国淫羊藿寄主植物的生物量和总黄酮、淫羊藿苷、淫羊藿苷B和淫羊藿苷C的含量,但对淫羊藿苷A的含量无显著影响。S10菌株对韩国淫羊藿生长的促进作用快于S3菌株,并且类黄酮3-羟化酶(F3H)在同一底物下通过不同途径催化淫羊藿苷A和淫羊藿苷的合成。POD在淫羊藿总黄酮合成中起关键作用。
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引用次数: 0
Molecular characterization of Carbapenem-resistant Escherichia coli isolates from sewage at Mulago National Referral Hospital, Kampala: a cross-sectional study 坎帕拉Mulago国家转诊医院污水中碳青霉烯耐药大肠杆菌的分子特征:一项横断面研究
4区 生物学 Q1 Immunology and Microbiology Pub Date : 2023-08-22 DOI: 10.1186/s13213-023-01732-9
Jamidah Bagaya, Kenneth Ssekatawa, Gloria Nakabiri, Julius Nsubuga, Anna Kitibwa, Charles Drago Kato, Lawrence Fred Sembajwe
Abstract Background Escherichia coli (E. coli) is one of the most frequent causes of fatal bacterial infections affecting both humans and animals. The resistance to Carbapenems is mainly associated with enzyme-mediated resistance mechanism, through the acquisition of Carbapenemase genes. In Uganda, no studies have been done to detect presence of Carbapenem-resistant E. coli in sewage. We therefore carried out a study to characterize Carbapenem-resistant E. coli from sewage from Mulago National Referral Hospital. Methods and results In this cross-sectional study, a total of 104, sewage samples were aseptically collected, cultured on MacConkey agar supplemented with Meropenem 1 µg/ml with other standard microbiology methods to screen for Carbapenem-resistant E. coli (CREC). Antimicrobial susceptibility testing was performed on the CREC, using Imipenem (10 mg/disc) and Meropenem (10 mg/disc), Carbapenem drugs readily available on market. Multiplex PCR was performed on selected Carbapenem-resistant and susceptible isolates to detect Carbapenemase genes. Later the isolates were pathotyped for virulence genes that included pathogenicity islands (PAIs) and phylogenetic markers. The results showed that the Carbapenem-resistant E. coli isolates were more resistant to Meropenem (64%) than Imipenem (60%). KPC gene was the most predominant (75%), followed by NDM gene (30%) while no OXA-48, IMP-1, and IMP-2 genes were detected. Pathotyping of virulence genes showed presence of eae gene, as the most predominant (40%), followed by elt gene (25%) and negative for stx and aggR genes. For PAI markers, only the PAI IV 536 gene was detected at 10%. Then, pathotyping of the phylogenetic markers was present in 85% of the typed isolates with yjaA gene the most abundant (60%) while both chuA and TSPE4.C2 were detected in 5% of the isolates. Conclusion Both pathogenic and non-pathogenic Carbapenem-resistant E. coli strains are present in the sewage of Mulago National Referral Hospital in Uganda.
摘要背景大肠杆菌是人类和动物最常见的致死性细菌感染之一。对碳青霉烯类的抗性主要与酶介导的抗性机制有关,通过碳青霉烯酶基因的获得。在乌干达,没有进行研究以检测污水中是否存在耐碳青霉烯类大肠杆菌。因此,我们开展了一项研究,以表征来自穆拉戈国家转诊医院污水中的耐碳青霉烯类大肠杆菌。方法与结果本横断面研究共收集104万份污水样本,在添加美罗培南1µg/ml的MacConkey琼脂培养基上进行培养,采用其他标准微生物学方法筛选耐碳青霉烯E. coli (CREC)。采用市售碳青霉烯类药物亚胺培南(10 mg/盘)和美罗培南(10 mg/盘)对CREC进行药敏试验。选择碳青霉烯耐药和敏感菌株进行多重PCR检测碳青霉烯酶基因。随后对毒力基因进行分型,包括致病性岛(PAIs)和系统发育标记。结果表明,耐碳青霉烯大肠杆菌对美罗培南(64%)的耐药率高于亚胺培南(60%)。KPC基因最多(75%),NDM基因次之(30%),未检出OXA-48、IMP-1和IMP-2基因。毒力基因的致病分型显示eae基因最多(40%),其次是elt基因(25%),stx和aggR基因均阴性。PAI标记物仅PAI IV 536基因检出率为10%。在85%的分型菌株中存在系统发育标记,其中yjaA基因含量最多(60%),而chuA和TSPE4基因含量都最多。5%的分离株中检出C2。结论乌干达穆拉戈国家转诊医院污水中存在致病性和非致病性碳青霉烯耐药大肠杆菌。
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引用次数: 0
Production, statistical evaluation and characterization of chitosanase from Fusarium oxysporum D18 尖孢镰刀菌D18壳聚糖酶的生产、统计评价及鉴定
IF 3 4区 生物学 Q1 Immunology and Microbiology Pub Date : 2023-08-19 DOI: 10.1186/s13213-023-01731-w
R. M. Abedin, Doha R. M. Abd Elwaly, Ayat E. Abd El-Salam
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引用次数: 0
Quantitative detection of Vibrio alginolyticus strain XSBZ14 by a newly developed RT-PCR method 新建立的溶藻弧菌XSBZ14的RT-PCR定量检测方法
IF 3 4区 生物学 Q1 Immunology and Microbiology Pub Date : 2023-08-19 DOI: 10.1186/s13213-023-01726-7
Na Zhang, Siyue Yang, Xiang Zhang, H. Long, Xiaoni Cai, Yanan Fu, Zhenyu Xie
{"title":"Quantitative detection of Vibrio alginolyticus strain XSBZ14 by a newly developed RT-PCR method","authors":"Na Zhang, Siyue Yang, Xiang Zhang, H. Long, Xiaoni Cai, Yanan Fu, Zhenyu Xie","doi":"10.1186/s13213-023-01726-7","DOIUrl":"https://doi.org/10.1186/s13213-023-01726-7","url":null,"abstract":"","PeriodicalId":8069,"journal":{"name":"Annals of Microbiology","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49250811","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
Correction: Effects of sweet potato intercropping in banana orchard on soil microbial population diversity 更正:香蕉园甘薯间作对土壤微生物种群多样性的影响
IF 3 4区 生物学 Q1 Immunology and Microbiology Pub Date : 2023-07-31 DOI: 10.1186/s13213-023-01730-x
Yanpei Li, Jiaqi Lin, Shixiang Xiao, D. Feng, Yingyi Deng, Weiyan Xuan
{"title":"Correction: Effects of sweet potato intercropping in banana orchard on soil microbial population diversity","authors":"Yanpei Li, Jiaqi Lin, Shixiang Xiao, D. Feng, Yingyi Deng, Weiyan Xuan","doi":"10.1186/s13213-023-01730-x","DOIUrl":"https://doi.org/10.1186/s13213-023-01730-x","url":null,"abstract":"","PeriodicalId":8069,"journal":{"name":"Annals of Microbiology","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48318114","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: 1
Fertilizer management methods affect bacterial community structure and diversity in the maize rhizosphere soil of a coal mine reclamation area 肥料管理方法对煤矿复垦区玉米根际土壤细菌群落结构和多样性的影响
IF 3 4区 生物学 Q1 Immunology and Microbiology Pub Date : 2023-07-17 DOI: 10.1186/s13213-023-01729-4
Huijuan Bo, Zejin Li, D. Jin, Minggang Xu, Qiang Zhang
{"title":"Fertilizer management methods affect bacterial community structure and diversity in the maize rhizosphere soil of a coal mine reclamation area","authors":"Huijuan Bo, Zejin Li, D. Jin, Minggang Xu, Qiang Zhang","doi":"10.1186/s13213-023-01729-4","DOIUrl":"https://doi.org/10.1186/s13213-023-01729-4","url":null,"abstract":"","PeriodicalId":8069,"journal":{"name":"Annals of Microbiology","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46103312","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
Laura Bruno (17 September 1966–16 May 2023) 劳拉·布鲁诺(1966年9月17日- 2023年5月16日)
IF 3 4区 生物学 Q1 Immunology and Microbiology Pub Date : 2023-07-06 DOI: 10.1186/s13213-023-01728-5
L. Rugnini, F. Cappitelli
{"title":"Laura Bruno (17 September 1966–16 May 2023)","authors":"L. Rugnini, F. Cappitelli","doi":"10.1186/s13213-023-01728-5","DOIUrl":"https://doi.org/10.1186/s13213-023-01728-5","url":null,"abstract":"","PeriodicalId":8069,"journal":{"name":"Annals of Microbiology","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48978721","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
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