Vol. 49 No. 2 (2010)
Research Papers

In vitro efficacy of bacterial endophytes against the chilli damping-off pathogen Pythium aphanidermatum

PDF
  • Arjunan MUTHUKUMAR,
  • Sevugapperumal NAKKEERAN,
  • Ayyadurai ESWARAN,
  • Ganesan SANGEETHA
Arjunan MUTHUKUMAR
Lecturer in Plant Pathology, Faculty of Agriculture, Annamalai University
DOI: https://doi.org/10.14601/Phytopathol_Mediterr-3088

Published 2010-09-14

Keywords

  • biological control,
  • hot pepper,
  • plant growth promotion

How to Cite

[1]
A. MUTHUKUMAR, S. NAKKEERAN, A. ESWARAN, and G. SANGEETHA, “In vitro efficacy of bacterial endophytes against the chilli damping-off pathogen Pythium aphanidermatum”, Phytopathol. Mediterr., vol. 49, no. 2, pp. 179–186, Sep. 2010.

Copyright (c) 2010 Arjunan MUTHUKUMAR, Sevugapperumal NAKKEERAN, Ayyadurai ESWARAN, Ganesan SANGEETHA

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Crossref
Scopus
Google Scholar
Europe PMC

Abstract

Damping-off of chilli caused by Pythium aphanidermatum is a major nursery disease in vegetables. The effect of ten endophytic isolates of Pseudomonas fluorescens was tested against P. aphanidermatum under in vitro conditions. All the isolates tested were short rods and produced bright fluorescence when exposed to UV light. Among the isolates, EBS 20 produced the largest inhibition zone and the least mycelial growth of P. aphanidermatum. With regard to the secondary metabolites, P. fluorescens EBS 20 produced most salicylic acid, siderophore and hydrogen cyanide. The culture filtrate of this isolate at a 15% concentration totally inhibited mycelial growth of P. aphanidermatum. In addition, chilli seeds treated with culture filtrate of this isolate also led to the greatest plant growth in terms of root length, shoot length and vigour index.
PDF

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...