Evaluation of four rhizobacteria on tomato growth and suppression of root-knot nematode, Meloidogyne javanica under greenhouse conditions, a pilot study

Egyptian Journal of Biological Pest Control

Saeed Rezaee¹  Fatemeh Sohrabi¹  Mahyar Sheikholeslami²  Rouhallah Sharifi³  Ramin Heydari⁴ 

[1] Department of Plant Pathology, College of Agriculture and Natural Resources, Science and Research Branch, Islamic Azad university, Tehran, Iran;Department of Plant Protection, Agricultural and Natural Resources Research Center, Kermanshah, Iran;Department of Plant Protection, College of Agriculture and Natural Resources, University of Razi, Kermanshah, Iran;Department of Plant Protection, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

关键词: Biological control;    Meloidogyne javanica;    Plant growth-promoting rhizobacteria;    Tomato;   

DOI  :  10.1186/s41938-018-0059-7

学科分类：动物科学

来源: Springer

【 摘 要 】

Growth-promoting rhizobacteria are free-living bacteria that colonize the roots and stimulate the plant growth. Many of these bacteria secrete a range of extracellular metabolites that can be involved in the biological control of plant pathogens. In this study, the effect of four plant growth-promoting rhizobacteria (PGPR) was evaluated on tomato growth parameters as well as biological control of the root-knot nematode (RKN) (Meloidogyne javanica). Tomato seedlings were inoculated with four isolates of PGPR including Pseudomonas fluorescens, Pseudomonas striata, Bacillus subtilis, and Paenibacillus polymyxa and cultivated in the presence or absence of RKN. The results showed that the PGPR significantly increased the plant growth parameters. Bacterial strains also significantly affected the reproductive factor of Meloidogyne javanica significantly so that P. fluorescens and B. subtilis reduced the reproductive factor from 112.15 to 24.94 and 24.96, respectively. Based on these results, among applied rhizobacteria in this study, P. polymyxa can be regarded as the best candidate for promoting the growth and biological control of M. javanica in tomato crop under greenhouse conditions.

【 授权许可】

CC BY