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Research Article Open access

Multifarious Antagonistic Potentials of Native Pseudomonad Isolates from Rhizosphere as Biocontrol Agents for the Management of Chickpea Wilt

Sanjeev Kumar, Sangita Sahni, Birender Kumar, S. S. Prasad

Current Journal of Applied Science and Technology · pp. 1–13 · Published 8 Dec 2018

10.9734/CJAST/2018/45976

Abstract

A total of nine pseudomonad isolates from different rhizosphere were isolated and screened for their antagonistic activities against F. oxysporum f.sp. ciceri. All nine isolates exhibited the ammonification property, produced HCN (Cyanide) and IAA (Indole acetic acid) and positive for phosphorus solubilization, except PGPR-Pl, this found to be negative for HCN production. Among the nine isolates, pseudomonad isolates PGPR-WS were best in exhibiting multiple PGPR traits like ammonification, HCN production, IAA production (26.08 mgl-1), and phosphate solubilization (306.51 mgl-1) as well as best in antagonistic activity against F. oxysporum f.sp. ciceri, showed 75.00% inhibition of growth of mycelia over control and caused total lysis of mycelia in advanced stages of antagonism. Thus screening and identification of novel bioagent PGPR-WS with multifarious activities vividly reflect its potential to suppress F. oxysporum f.sp. ciceri and suggest the usefulness of this super bioinoculant as a component of integrated disease management (IDM) of chickpea wilt caused by F. oxysporum f.sp. ciceri.  

Chickpea wilt pseudomonad ammonification HCN IAA IDM.

Cited by 2

Rapid Methods for Identification of Plant-Growth-Promoting Rhizobacteria

S. Sahni, B. D. Prasad · International Journal of Plant & Soil Science · 2021

Integrated Disease Management of Chickpea Fusarium Wilt

Sanjeev Kumar, S. Sahni, B. D. Prasad · Current Journal of Applied Science and Technology · 2020

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