ISSN: 0973-7510

E-ISSN: 2581-690X

P. Savitha1 , M.N. Sreenivasa1 and Jones P. Nirmalnath2
1Department of Agricultural Microbiology, 2AICRP on Weed Control University of Agricultural Sciences, Dharwad, Karnataka – 580 005, India.
J Pure Appl Microbiol. 2013;7(2):981-985
© The Author(s). 2013
Received: 06/11/2012 | Accepted: 04/12/2012 | Published: 30/06/2013
Abstract

Methylotrophic bacteria like pink pigmented facultative methylotrophs (PPFMs) which are present on leaf surfaces take up methanol from the wastes of plant metabolism and contribute to growth and development of host plant in a number of ways. Using the leaf imprint method [1] and serial dilution technique, as many as 200 PPFM isolates were obtained from chilli leaves, rhizosphere soil and roots samples collected from 76 different locations and were tested for the production of plant growth promoting substances (IAA and GA). The production of IAA and GA varied among different PPFM isolates from 19.77 µg/ml to 0.14 µg/ml of culture filtrate and 128.28 µg/ ml to 4.77 µg /ml of culture filtrate respectively.

Keywords

PPFM, Indole acetic acid, Gibberellic acid, HPLC

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