项目名称: 云南特色发酵食品中微生物群落结构及其元基因组与元转录组分析
项目编号: No.31260397
项目类型: 地区科学基金项目
立项/批准年度: 2013
项目学科: 农业科学
项目作者: 李晓然
作者单位: 昆明理工大学
项目金额: 50万元
中文摘要: 发酵食品是人类饮食的重要组成,深入研究其中微生物群落结构、代谢及其活性对于充分发掘微生物资源、促进发酵食品质量和提升其生理保健功能具有深远意义。本研究将使用分子生物学方法结合高通量测序分析发酵食品中的微生物群落结构并对其进行元基因组和元转录组分析。首先,对云南特色发酵产品- - 豆豉的微生物群落结构做较为深入的研究,分析其不同产地和不同发酵阶段的细菌和真菌的群落结构,并分析微生物群落结构的可能影响因素。在此研究基础上,将选取代表性样品进行元基因组和元转录组分析,构建豆豉中微生物群落的主要代谢通路,得到主要微生物类型的基因组序列,通过比较微生物群落结构、元基因组和元转录组的研究结果,解析样品中具有活性的微生物群落结构和主要代谢通路。此外,在此基础上,建立针对发酵食品中重要功能基因的检测体系,以期达到监测发酵食品的发酵进程。
中文关键词: 传统发酵食品;群落结构;元基因组;元转录组;
英文摘要: Fermented food plays a substantial role in human diet, which makes it important to investigate the microbial community structures, metabolisms and bio-activities, so as to exploit the resource of microorganism, improve and control the quality of fermented food, and upgrade the function of health care. In this research, we will analyze the microbial community structure, metagenome and metatranscriptome of the fermented food using molecular methods and high-throughout sequencing. First, we will dig into the microbial community structures of one type of Yunnan specific traditional fermented food: fermented soybean.We will analyze the bacteria and fungi community structures of fermented soybean from different producing area or in different ferment phases.And the factors that may influence the microbial community structures will also be investigated. Based on this, representative samples will be taken for metagenomic and meratranscriptomic analysis.We will investigate the metabolic pathway of fermented soybean, reconstruct the genome of main microbes in them, and analyze the community structure and metabolic procedure of the bio-active microbes from the comparation of the data organized from three different research strategies. Furthermore, we will design some primers specifically for the important functional genes
英文关键词: tranditional fermented food;microbial community structure;metagenome;metatranscriptome;