ISSN: 0973-7510

E-ISSN: 2581-690X

B.V. Pavitra and M.N. Sreenivasa
Institute of Organic Farming, University of Agricultural Sciences, Dharwad – 580 005, India.
J. Pure Appl. Microbiol., 2016, 10 (2): 941-946
© The Author(s). 2016
Received: 13/01/2016 | Accepted: 19/04/2016 | Published: 30/06/2016

The Phototrophic Purple Non Sulfur Bacteria (PPNSB) are the best studied and most diverse group of the phototrophic bacteria. The pigments, metabolites, and nutrients made by PPNSB could give some positive effects on plant growth. The study on detection of growth hormones production from Purple non sulphur bacteria conducted during 2012-2013 in the department of Agricultural Microbiology, University of Agricultural Sciences, Dharwad. The results revealed that totally two hundred isolates of NKPRPPNSB isolates subjected for rapid  screening of Indole acetic acid (IAA)  and cytokinine production, among them, 20 isolates found efficient for IAA and cytokinine production(. Further, efficient isolates qualitatively tested in HPLC by determining retention time and peak area to calculated the amount of IAA and Cytokinine   production. The isolates NKPRPPNSB(H10) was shown IAA production 18 µÀg/ ml with 6.02 min retention time and NKPRPPNSB(S6) isolates produced 43.50 µÀg/ litre of cytokinine with retention time of  3.11 min.


Pigments, Indole acetic acid, Cytokinine, Retention time.

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© The Author(s) 2016. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.