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Suppression of charcoal rot in soybean by moderately halotolerant Pseudomonas aeruginosa GS-33 under saline conditions

2016; Wiley; Volume: 56; Issue: 8 Linguagem: Inglês

10.1002/jobm.201600008

1521-4028

Sandeep Patil, Jayasinh S. Paradeshi, Bhushan L. Chaudhari,

Bacterial biofilms and quorum sensing

Journal of Basic MicrobiologyVolume 56, Issue 8 p. 889-899 Research Paper Suppression of charcoal rot in soybean by moderately halotolerant Pseudomonas aeruginosa GS-33 under saline conditions Sandeep Patil, Sandeep Patil School of Life Sciences, North Maharashtra University, Jalgaon, IndiaSearch for more papers by this authorJayasinh Paradeshi, Jayasinh Paradeshi School of Life Sciences, North Maharashtra University, Jalgaon, IndiaSearch for more papers by this authorBhushan Chaudhari, Corresponding Author Bhushan Chaudhari School of Life Sciences, North Maharashtra University, Jalgaon, India Correspondence: Bhushan L. Chaudhari, Department of Microbiology, School of Life Sciences, North Maharashtra University, Post Box- 80, Umavi Nagar, Jalgaon, Maharashtra 425001, India E-mail:blchaudhari@hotmail.com; blchaudhari@gmail.comSearch for more papers by this author Sandeep Patil, Sandeep Patil School of Life Sciences, North Maharashtra University, Jalgaon, IndiaSearch for more papers by this authorJayasinh Paradeshi, Jayasinh Paradeshi School of Life Sciences, North Maharashtra University, Jalgaon, IndiaSearch for more papers by this authorBhushan Chaudhari, Corresponding Author Bhushan Chaudhari School of Life Sciences, North Maharashtra University, Jalgaon, India Correspondence: Bhushan L. Chaudhari, Department of Microbiology, School of Life Sciences, North Maharashtra University, Post Box- 80, Umavi Nagar, Jalgaon, Maharashtra 425001, India E-mail:blchaudhari@hotmail.com; blchaudhari@gmail.comSearch for more papers by this author First published: 23 May 2016 https://doi.org/10.1002/jobm.201600008Citations: 8Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Charcoal rot severely limits the soybean crop yield under saline conditions. The present studies focus on biocontrol and plant growth promoting potential of phenazine producing moderately halotolerant Pseudomonas aeruginosa (GS-33) in soybean under saline soil conditions. A marine isolate; GS-33 was identified as P. aeruginosa based on polyphasic characterization. This strain showed potent in vitro biocontrol activity against charcoal rot causing fungus Macrophomina phaseolina. It was capable of producing phenazine-1-carboxylic acid even at elevated salt concentrations. Moreover, GS-33 possessed other biocontrol traits like production of siderophores, HCN and protease under saline conditions. Multiple traits for plant growth promotion such as synthesis of IAA, NH3, and solubilization of phosphate were also exhibited by GS-33. Plant growth promoting and biocontrol control potentials of GS-33 were evaluated by pot assay under saline soil conditions. Higher biomass and chlorophyll content were observed in GS-33 treated seedlings. A greater reduction in charcoal rot caused by fungal pathogens under both normal and saline soil conditions in GS-33 treated seedlings was observed. In a nut shell, phenazine producing halotolerant strain GS-33 could mitigate saline soil conditions (abiotic stress) and infestation of M. phaseolina (biotic stress) in soybean. Citing Literature Supporting Information As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Filename Description jobm201600008-sup-0001-SuppData-S1.pdf903.6 KB Supporting Data Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume56, Issue8August 2016Pages 889-899 RelatedInformation