Department of Mycology and Plant Pathology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, India.
J Appl Microbiol. 2013 Jan;114(1):196-208. doi: 10.1111/jam.12009. Epub 2012 Oct 31.
To study the biocontrol potential of nematode-trapping fungus Arthrobotrys oligospora in protecting tomato (Lycopersicon esculentum Mill.) against Meloidogyne incognita and Rhizoctonia solani under greenhouse and field conditions.
Five isolates of the nematode-trapping fungus Arthrobotrys oligospora isolated from different parts of India were tested against Meloidogyne incognita and Rhizoctonia solani in tomato (Lycopersicon esculentum Mill.) plants grown under greenhouse and field conditions. Arthrobotrys oligospora-treated plants showed enhanced growth in terms of shoot and root length and biomass, chlorophyll and total phenolic content and high phenylalanine ammonia lyase activity in comparison with M. incognita- and R. solani-inoculated plants. Biochemical profiling when correlated with disease severity and intensity in A. oligospora-treated and untreated plants indicate that A. oligospora VNS-1 offered significant disease reduction in terms of number of root galls, seedling mortality, lesion length, disease index, better plant growth and fruit yield as compared to M. incognita- and R. solani-challenged plants.
The result established that A. oligospora VNS-1 has the potential to provide bioprotection agents against M. incognita and R. solani.
Arthrobotrys oligospora can be a better environment friendly option and can be incorporated in the integrated disease management module of crop protection. Application of A. oligospora not only helps in the control of nematodes but also increases plant growth and enhances nutritional value of tomato fruits. Thus, it proves to be an excellent biocontrol as well as plant growth promoting agent.
研究捕食线虫真菌节丛孢（Arthrobotrys oligospora）在温室和田间条件下保护番茄（Lycopersicon esculentum Mill.）免受南方根结线虫（Meloidogyne incognita）和立枯丝核菌（Rhizoctonia solani）侵害的生物防治潜力。
从印度不同地区分离出的 5 株捕食线虫真菌节丛孢，在温室和田间条件下对番茄（Lycopersicon esculentum Mill.）植株上的南方根结线虫和立枯丝核菌进行了测试。与受南方根结线虫和立枯丝核菌侵染的植株相比，节丛孢处理的植株在地上部和地下部长度、生物量、叶绿素和总酚含量以及苯丙氨酸解氨酶活性方面表现出增强的生长。与未处理的植株相比，节丛孢处理的植株在疾病严重程度和强度方面的生化特征表明，节丛孢 VNS-1 在减少根瘤数量、幼苗死亡率、病斑长度、疾病指数、改善植物生长和果实产量方面提供了显著的疾病减少，与受南方根结线虫和立枯丝核菌挑战的植株相比。
结果表明，节丛孢 VNS-1 具有提供针对南方根结线虫和立枯丝核菌的生物保护剂的潜力。
节丛孢可以作为一种更好的环保选择，并可以纳入作物保护的综合病害管理模块。节丛孢的应用不仅有助于控制线虫，还能促进植物生长，提高番茄果实的营养价值。因此，它证明是一种优秀的生物防治剂和植物生长促进剂。
