| Quantification of the Composition Dynamics of a Maize Root-associated Simplified Bacterial Community and Evaluation of Its Biological Control Effect
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Author:
Date:
2018-06-20
[Abstract] Besides analyzing the composition and dynamics of microbial communities, plant microbiome research aims to understanding the mechanism of plant microbiota assembly and their biological functions. Here, we describe procedures to investigate the role of bacterial interspecies interactions in root microbiome assembly and the beneficial effects of the root microbiota on hosts by using a maize root-associated simplified seven-species (Stenotrophomonas maltophilia, Ochrobactrum pituitosum, Curtobacterium pusillum, Enterobacter cloacae, Chryseobacterium indologenes, Herbaspirillum frisingense and Pseudomonas putida) synthetic bacterial community described in our previous work. Surface-sterilized maize seeds were grown in a ...
[摘要] 除了分析微生物群落的组成和动态外，植物微生物群落研究的目的在于了解植物微生物群落组装的机制及其生物学功能。在这里，我们描述了通过使用与玉米根相关的简化的七种物种（嗜麦芽窄食单胞菌（Stenotrophomonas maltophilia），）来研究细菌种间相互作用在根微生物群组装中的作用以及根菌群对宿主的有益影响的程序。 Ochrobactrum pituitosum ，Curtobacterium pusillum ，阴沟肠杆菌， Chryseobacterium indologenes ，<在我们以前的工作中描述过的假单胞菌（pseudomonas putida））合成细菌群落。表面灭菌的玉米种子在含有多种细菌的悬浮液中浸泡后，在基于双管生长室的非生物体系中生长。通过对7种菌株中的每种菌株选择性培养基的培养依赖性方法追踪定殖在玉米根部的细菌群组成的动态。通过监测社区结构的变化来评估细菌相互作用对社区组装的影响。通过量化（1）真菌植物病原体，种子表面上的fusarium="" verticillioides和（2）幼苗枯萎的严重程度来评估简化的7种群落的植物保护效果真菌引起的疾病，在细菌群落的存在和不存在的情况下。我们的方案将作为研究实验室条件下植物="" -=""> ...
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| Establishing a Biofilm Co-culture of Pseudomonas and Aspergillus for Metabolite Extraction
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Author:
Date:
2015-12-05
[Abstract] Filamentous fungi and bacteria form mixed-species biofilms in nature and diverse clinical contexts (Frey-Klett et al., 2011; Peleg et al., 2010). The interactions between fungi and bacteria, often mediated by secreted metabolites, have important ramifications for the biology of the interacting partners (Frey-Klett et al., 2011). This is particularly true for the bacterium Pseudomonas aeruginosa (P. aeruginosa) and the fungus Aspergillus fumigatus (A. fumigatus) which often reside in the same niche such as lungs of cystic fibrosis (CF) patients. Some studies have reported that co-infection with P. aeruginosa and A. fumigatus could lead to a decrease in lung function relative to their respective single species ...
[摘要] 丝状真菌和细菌在自然界和不同的临床背景中形成混合物种生物膜（Frey-Klett等人，2011; Peleg等人，2010）。真菌和细菌之间的相互作用，通常由分泌的代谢物介导，对相互作用的伴侣的生物学具有重要的影响（Frey-Klett等人，2011）。对于绿脓假单胞菌（铜绿假单胞菌）和真菌烟曲霉（ A。fumigatus >），其常常位于相同的位置，例如囊性纤维化（CF）患者的肺。一些研究报道了与p的共感染。铜绿和 烟曲霉可能导致相对于它们各自的单一物种感染的肺功能降低（Amin等人，2010; Peleg等人，2010）。代谢物提取和分析允许表征多微生物生物膜中的特定微生物代谢物。该方案描述了如何在固体培养基上制备假单胞菌属 - 曲霉菌共培养生物膜以准备代谢物提取。
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