Biological control of pre-harvest aflatoxin contamination in groundnut (Arachis hypogaea L.) with Bacillus subtilis G1

H. Shifa, Shazia Tasneem, C. Gopalakrishnan, R. Velazhahan

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The antagonistic activity of Bacillus subtilis strain G1 was tested against various isolates of Aspergillus flavus in vitro. A talc-based powder formulation of B. subtilis strain G1 was prepared and evaluated to control A. flavus infection and aflatoxin B1 contamination in groundnut under greenhouse and field conditions. The results showed that B. subtilis strain G1 could inhibit the growth of all isolates of A. flavus tested in dual culture assay and the growth inhibition ranged from 93 to 100%. Results of greenhouse and field experiments indicated that B. subtilis strain G1 when applied to groundnut as seed treatment and soil application significantly suppressed A. flavus population in the soil, A. flavus infection and aflatoxin B1 content in kernels and increased the pod yield. These studies show that B. subtilis strain G1 has potential as a biocontrol agent for control of aflatoxin contamination in groundnut.

Original languageEnglish
Pages (from-to)137-148
Number of pages12
JournalArchives of Phytopathology and Plant Protection
Volume49
Issue number5-6
DOIs
Publication statusPublished - Apr 2 2016

Fingerprint

Arachis hypogaea
Aspergillus flavus
aflatoxins
Bacillus subtilis
peanuts
biological control
aflatoxin B1
greenhouses
talc
seed treatment
soil treatment
infection
growth retardation
biological control agents
pods
powders
assays
seeds
soil

Keywords

  • aflatoxin
  • Arachis hypogaea
  • Aspergillus flavus
  • Bacillus subtilis
  • biocontrol

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Biological control of pre-harvest aflatoxin contamination in groundnut (Arachis hypogaea L.) with Bacillus subtilis G1. / Shifa, H.; Tasneem, Shazia; Gopalakrishnan, C.; Velazhahan, R.

In: Archives of Phytopathology and Plant Protection, Vol. 49, No. 5-6, 02.04.2016, p. 137-148.

Research output: Contribution to journalArticle

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