ABSTRACT

Brinjal or eggplant (Solanum melongena L.) is an important solanaceous vegetable yield mostly grown in India. It is anassociate of the Solanaceae family. Bacterial wilt caused by Ralstonia solanacearum is one of the most harmful plant diseases worldwide and deadly effects on many economically important yields. In India, brinjal is the 4th important vegetable grown after potato, onion, and tomato fifteen brinjal accessions were separated in the sickbed pre-inoculated with R. solanacearum. Resistant and moderately susceptible accessions exposed a longer incubation period. It is a soil-borne pathogen, Gram-negative, rod-shaped, aerobic, and non-spore-forming bacteria. R. solanacearum first charge intercellular spaces of roots where it multiplies before entering xylem vessels and producing exopolysaccharide (EPS), evoking wilt of the infected plant. This review paper focused on recent enhancements in control measures, as well as the bio-control ability and suppression mechanisms. Biological control agents (BCAs) have been controlled by bacteria (90%) and fungi (10%). Avirulent strains of R. solanacearum, Pseudomonas spp., Bacillus spp. and Streptomyces spp. are close to BCAs. Inoculation methods for biological control ability, such as drenching of soil, dipping of roots, and seed coating. Biological control of soil-borne plant pathogens by the addition of vertisol soil either artificially or naturally. Keywords: Brinjal, Bacterial Wilt, Exopolysaccharide (EPS), Ralstonia solanacearum, Biological control agents (BCAs)
Publication date: 01/04/21

https://ijbpas.com/pdf/2021/April/MS_IJBPAS_2021_APRIL_SPCL_1006.pdf

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https://doi.org/10.31032/IJBPAS/2021/10.4.1006