【摘 要】
：
In order to obtain effective antagonistic actinomycetes against Verticillium dahliae in Xinjiang.In this experiment, 761 strains of actinomycetes were isolated from 37 soil samples collected from Shih
【机 构】
：
Key Laboratory of Oasis Crop Disease Prevention of Xinjiang Bingtuan, Shihezi University, Shihezi 83
【出 处】
：
中国植物病理学会2014年学术年会
论文部分内容阅读
In order to obtain effective antagonistic actinomycetes against Verticillium dahliae in Xinjiang.In this experiment, 761 strains of actinomycetes were isolated from 37 soil samples collected from Shihezi, Kuitun, Fukang, Kuerle, Changji, Manasi, Akesu in various cotton field of Xinjiang by using the plate dilution method.The 101 strains of actinomycetes were screened out, which had obvious antimicrobial action against Verticillium dahliae through indoor plate confrontation screening.Among them, 5 antibiotic actinomyces stains had a strong inhibitory activity against V.dahliae, the inhibition zone diameter ≥ 17mm, which TD3-2-1, inhibitory zone diameter was 20.07mm, and antagonistic test results showed that the bacteriostatic rate of TD3-2-1 filtrate on the mycelial growth of V.dahliae was 58.5%.The seed germination experiments showed that the strain TD3-2-1 had a significant growth-promoting effect on seeds of cotton.Based on its morphological, cultural characterist ics, general physiological and biochemical properties and analysis of the 16S rDNA, TD3-2-1 was identified as Streptomyces sp..TD3-2-1 has potentiality to develop into biocontrol of cotton verticillium wilt caused by V.dahliae.
其他文献
Chemical epigenetic manipulation of Aspergillus niger y-61 led to profound changes in the secondary metabolite profile of its nematicidal compounds.While nematicidal compounds from control cultures ex
Alfalfa crown and root rot caused by Fusarium spp.is a kind of destructive disease of alfalfa.It can cause severe yield losses and quality reduction.In the interactions between pathogen and plant, non
采用JSP程序设计语言为北京市植保站重新开发一套针对农作物重大病虫害监测预警快速响应系统,该系统以北京市主要病虫害数据的采集、存储、查询、统计分析为基础,同时根据北京市各个区从1990年到2013年总共24年的病虫害田间调查数据(调查日期、调查地点、品种、生育期、发病率、严重度、病情指数、成虫诱捕量、被害株率、卵块数、各龄幼虫数等)和北京市同期气象数据(日平均气压、日平均气温、日平均相对湿度、日降
为了能够有效的检测出抗除草剂的转基因作物，本实验室通过原核表达的方法，纯化了草甘膦N-乙酰转移酶蛋白，并制备了它的抗血清，通过对本实验室已获得的转草甘膦N-乙酰转移酶基因的本生烟植株进行western blot检测和ID-EUSA检测，实验结果表明，获得了特异性和性价比均较高，可应用于转基因作物检测工作的草甘膦N-乙酰转移酶蛋白抗血清。
Plants have developed many complex mechanisms to defend themselves against various biotic and abiotic stresses, such as pathogen infection.It has been reported that several defense responses are influ
荞麦是一种药食同源的作物，具有很高的营养、药用及保健价值。为了了解荞麦病害发生与为害情况，本研究组对全国荞麦主产区的的荞麦进行了病害调查。于2013年调查中发现，在荞麦的开花期，荞麦叶片上有不规则形状、大小不一的红褐色病斑。该病影响了荞麦的光合作用与呼吸作用，可导致荞麦籽粒空粒、秕粒，对其产量具有较大影响。本研究对引起该种病害的病原菌进行了分离，通过形态学和分子生物学进行了鉴定。结果表明，从病部叶
Verticillium dahliae is a destructive asexual soil-borne, hemibiotrophic, xylem-invading phytopathogenic fungus that causes wilt disease in a wide range of crops.Quite a few genes have been characteri
Structural studies showed that tumors induced by Southern rice black-streaked dwarf virus (SRBSDV;genus Fijivirus, family Reoviridae) were highly organized modified phloem, composed of sclerenchyma, v
A reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay was developed and optimized for detecting tomato chlorosis virus (ToCV), one of the most important viruses that infect to
Pepper phytophthora blight caused by Phytophthora capsici give rise to severe yield loss in China.Employing antagonistic bacteria to control the disease is considered as a promising way to reduce the