Pollution Research Paper

Vol. 35, Issue 1, 2016; Page No.(91-96 )

PLANT GROWTH PROMOTING ATTRIBUTES OF PSEUDOMONAS FLUORESCENS ISOLATED FROM RHIZOSPHERE OF RICE IN RANGAREDDY DISTRICT

BIYYANI SUMAN, A. VIJAYA GOPAL, R. SUBHASH REDDY, S. TRIVENI AND K. DAMODARA CHARI

Abstract

Rice is an economically important food crop, which is subjected to infect by a host of fungal, viral and bacterial pathogens. Plant growth-promoting rhizobacteria (PGPR) are beneficial bacteria that colonize plant roots and enhance plant growth by a wide variety of mechanisms. The use of PGPR is steadily increasing in agriculture and offers an attractive way to replace chemical fertilizers, pesticides and supplements. Pseudomonas fluorescens is important among PGPR because it is having an ability to induce plant growth as well as control the growth of pathogens. In the present study thirty P. fluorescens isolates were isolated, from the rhizospheric soils of rice fields from the Rangareddy district of Telangana state and the isolates were screened and characterized for the PGPR characters like phosphate solubilisation, ammonia and Indole Acetic Acid (IAA) production. Isolates showing PGP properties were further screened in vitro for biocontrol activities like siderophore, HCN and antagonism against soil borne phytopathogen Rhizoctonia solani causing sheath blight in rice. Results revealed that all isolates reacted positively for Ammonia production, HCN production and 23 isolates showed phosphate solubilisation and siderophore production, 28 showed IAA production. In vitro antagonism was shown by all isolates and high prevalence of antagonism was found against the fungal pathogen Rhizoctonia solani by the isolate DMP1 (53.43%) followed by DBP (51.53%). Results revealed that rhizospheric soils are the rich source of Pseudomonas fluorescens, which have a potential to be used as a biocontrol agent.

Enter your contact information below to receive full paper.
Your Name :
Email:
Phone:
City:
Cost of Full Paper: Rs.75 for Indian Nationals or $20 (USD) for international subscribers.
By clicking on Request Paper you Agree to pay the above mentioned cost per paper.
  
Journal Issues
Vol 39, Issue 2, 2020
Vol 39, Issue 1, 2020
Vol 39, Feb Suppl. Issue, 2020
Vol 38, Issue 4, 2019
Vol 38, November Suppl Issue
Vol 38, Issue 3, 2019
Vol 38, August Suppl Issue
Vol 38, Issue 2, 2019
Vol 38, March Suppl Issue
Vol 38, Issue 1, 2019
Vol 37, Issue 4, 2018
Vol 37, Issue 3, 2018
Vol 37, Issue 2, 2018
Vol 37, May Suppl. Issue 2018
Vol 37, Issue 1, 2018
Vol. 36, Issue 4, 2017
Vol. 36, Issue 3, 2017
Vol. 36, Issue 2, 2017
Vol. 36, Issue 1, 2017
Vol. 35, Issue 4, 2016
Vol. 35, Issue 3, 2016
Vol. 35, Issue 2, 2016
Vol. 35, Issue 1, 2016
Vol 34, Issue 4, 2015
Vol 34, Issue 3, 2015
Vol 34, Issue 2, 2015
Vol 34, Issue 1, 2015
Vol 33, Issue 04, 2014
Vol 33, Issue 03, 2014
Vol 33, Issue 02, 2014
Vol.33, Issue 01, 2014
Vol.32, Issue 04, 2013
Vol.32, Issue 03, 2013
Vol.32, Issue 02, 2013
Vol.32, Issue 1, 2013
Vol.31, Issue 04, 2012
Vol.31, Issue 3, 2012
Vol.31, Issue 2, 2012
Vol.31, Issue 1, 2012
Vol.30, Issue 4, 2011
Vol.30, Issue 3, 2011
Vol.30, Issue 2, 2011
Vol.30, Issue 1, 2011
Vol.29, Issue 4, 2010
Vol.29, Issue 3, 2010
Vol.29, Issue 2, 2010
Vol.29, Issue 1, 2010
Vol.26, Issue 3, 2007
Vol.20, Issue 02, 2001
Vol.20, Issue 01, 2001
Vol.19, Issue 03, 2000
Vol.19, Issue 01, 2000
Vol.18, Issue 02, 1999
Vol.17, Issue 04, 1998
Vol.17, Issue 03, 1998
Vol.17, Issue 01, 1998
Looking for Past Issues? Click here to get them!!