Optimisation of Indole Acetic Acid Production by two Anoxygenic Phototrophic Bacteria Isolated from Tannery effluents

ISSN: 0973-7510

E-ISSN: 2581-690X

Ramchander Merugu^1,2, M.P. Pratap Rudra², Atthapu Thirupathaiah³, S. Girisham⁴ and S.M. Reddy⁴

¹Department of Biochemisty, 4Department of Microbiology, Kakatiya University, Warangal – 506 009, India.

²Department of Biochemisty, Osmania University, Hyderabad, India.

³Department of Pharmaceutical Chemistry, Mahatma Gandhi University, Nalgonda, India.

J Pure Appl Microbiol. 2011;5(2):929-932

Received: 07/08/2010 | Accepted: 27/10/2010| Published: 31/10/2011

Abstract

Two anoxygenic phototrophic bacteria Rb.capsulatus and Rps.acidophila were isolated from tannery effluents and their ability to produce Indole acetic acid (IAA) under different nutrient conditions was studied. Illumination conditions favoured the production of IAA than dark conditions. Rps.acidophila was a good producer of Indole acetic acid. Maximum amount of IAA on the 8^th day of incubation period in Rps.acidophila. Neutral pH produced maximum IAA in Rb.capsulatus while pH of around 6.0 was favourable for IAA production by Rps.acidophila. Glutamic acid was the best nitrogen source for the production of IAA by both the bacteria under investigation. EDTA and SDS induced more release of the phytohormone in both the bacteria under investigation. Significance of above observations in the light of existing literature is discussed.

Keywords

Purple non sulphur bacteria, IAA, Rb.capsulatus, Rps. acidophila

Download PDF

Article Metrics

Article View: 630

JPAM.5.2.61 (207 downloads)

Share This Article

© The Author(s) 2011. 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.