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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 6
First page : (117) Last page : (124)
Article doi: : http://dx.doi.org/10.18782/2320-7051.7086

Biochemical Characterization of Native Pseudomonas fluorescens Strains followed by their Compatibility with Agrochemicals and
Phyto-extracts under in vitro

Ameer Basha S.¹*, Sajeli Begum A.² and Ragavendra G.³

¹Department of Plant Pathology, College of Agriculture, Professor Jayashanker Telangana State Agricultural University, Rajendranagar-500030, Telangana State, India
²Department of Pharmacy, Birla Institute of Technology and Science - Pilani Hyderabad
Campus, Jawahar Nagar, Khapra Mandal, Medchel District-500078, Telangana State, India
³Siddhartha Degree College for women, Vanasthalipuram, Hyderabad, Telangana State, India
*Corresponding Author E-mail: ameer_sajeli786@yahoo.co.in
Received: 4.09.2018 | Revised: 8.10.2018 | Accepted: 15.10.2018  

 ABSTRACT

Pseudomonas fluorescens (Pf), a Plant Growth Promoting Rhizobacteria (PGPR) has a wide scope for commercialization as it can be used in the production of biofertilizers. A total of fifty four Pf strains were characterized for HCN, ammonia, IAA, siderophore production. All Pf strains showed positive reaction to ammonia production, except Pf 8 strain. A total of thirty two strains showed IAA production. HCN and siderophore production results were encouraging for selective strains only. The percentage PGP characteristics were found to be 98.1%, 59.3%, 27% and 7.4% of ammonia, IAA, HCN and siderophore, respectively. As a step forward, the compatibility response of all P. fluorescens strains with commercially available agrochemicals viz., fungicides, herbicides and insecticides were screened under in vitro. All Pf strains were compatible with fungicides, except with copper oxychloride and mancozeb. Among the tested herbicides, compatibility was found with atrazine and imazethapyr. Our attempts for compatibility studies against plant extracts were affirmative. Thus, the aim to screen-out commercial agrochemical and phytoextract tolerant strains for integrated disease management was achieved.

Key words: Pf strains, incompatibility, integrated disease management.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Ameer Basha, S., Sajeli Begum, A. and Ragavendra, G., Biochemical Characterization of Native Pseudomonas fluorescens Strains followed by their Compatibility with Agrochemicals and Phyto-extracts under in vitro, Int. J. Pure App. Biosci.6(6): 117-124 (2018). doi: http://dx.doi.org/10.18782/2320-7051.7086