Cut chrysanthemum is one of the most popular cut flowers in the world.However,its production tends to fall dramatically because of continuous cropping.This reduced production may be due to the accumul
Solid phase microextraction and gas chromatography coupled with mass spectrometry (SPME-GC-MS) and relative odor activity value were used to study the key volatile compounds of fermented cow milk usin
近期完成的Tara Oceans计划是有史以来最大规模的海洋微生物宏基因组计划，为海洋微生物组的研究提供了大量的数据.为了了解海洋微生物中次级代谢产物生物合成基因簇的分布情况，我们下载了Tara Oceans计划公布的约1.3 TB测序数据，并对这些数据进行了denovo组装，获得了245套数据集.利用antiSMASH软件包对这些数据进行分析获得了约6500个次级代谢产物生物合成基因簇(BGCs
Shewanella marisflavi is thought to be responsible for the infection in juvenile sea cucumber (Apostichopus japonicas).A bacteriophage specific to S.marisflavi was isolated from the seafood wholesale
采用高效液相色谱-四级杆飞行时间质谱联用技术对61个芽胞杆菌(Bacillus-like)菌株发酵上清液中的代谢物进行测定,利用MassHumer软件对原始数据进行分子特征提取,然后将它们在Metlin代谢物质谱数据库中进行检索比对而获得各代谢物的信息.结果 表明,在海绵芽胞杆菌(Bacillus plakortidis)菌株FJAT-14858的发酵上清液中,可以检测出游离油酸,其Metlin匹
In this study,the fermentation process was designed according to the yield of red pigments produced by Penicillium novae-zeelandiae HSD07B.The components of red pigment were also analyzed.The results
Selenium (Se) is an essential trace element in living systems.Microorganisms play a pivotal role in the selenium cycle both in life and in environment.Different bacterial strains are able to reduce Se
The optimizing of the fermentation conditions in ordre to active the expression of zunyimycin family biosynthesis genes of the zunyimycin producingstreptomycetes strain,Streptomyces sp.FJS312 were per
微生物群落广泛分布在地球上的每个生态系统中，对全球碳、氮和硫等元素的物质循环中起着重要作用。现在已培养的微生物可能不到自然界微生物总量的1％，大量未培养的微生物如同地球上的“暗物质”，随着组学技术的快速进展，整合宏基因组学、宏转录组学、宏蛋白质组学等技术就可以在分子水平动态层次上揭示环境微生物群落的结构、系统发生、代谢功能、调控规律等。使得人们可从系统角度全面认识环境微生物群落与其功能，挖掘新的关
荒漠化是最为严重的环境问题之一,影响着人们的日常生活,而生物土壤结皮(biological soil crusts,BSCs)的形成和发育可以促进荒漠生态环境的恢复。蓝藻作为BSCs的先锋物种,其对BSCs的形成和发育具有重要的作用,而BSCs中的的异养细菌与蓝藻的相互作用,特别是前者通过促进后者生长、进而促进BSCs的形成和发育还有待研究。本研究利用涂布划线的方法进行菌株的分离纯化,将得到的蓝藻