International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2016, Volume : 4, Issue : 2
First page : (156) Last page : (162)
Article doi: http://dx.doi.org/10.18782/2320-7051.2270
Screening for Plant Growth Promoting Activity (PGPA) of fluorescent Pseudomonas spp.
Dibakar Pal, Anil Kotesthane and Utpal Dey
IGKVV, RAIPUR, Chhattisgarh, India
*Corresponding Author E-mail: dibakarpal55@gmail.com
Received: 14.04.2016 | Revised: 22.04.2016 | Accepted: 24.04.2016
Abstract
Fluorescent Pseudomonas spp. producing the polyketide antibiotic 2,4-diacetylphloroglucinol (DAPG) are some of the most effective PGPR that control root and seedling diseases. However, fluorescent Pseudomonas spp. have emerged as the largest and potentially most promising group of plant growth-promoting rhizobacteria involved in the biocontrol of plant diseases. The present per suit has taken the work to study the plant growth promoting activity of bacterial population found in soil strata of different districts of Chhattisgarh. After 1: 1000 dilution of soil sample on KMB medium plates, population of Pseudomonas was observed. Preliminarily isolated Pseudomonas spp identified as Pseudomonas fluorescence through different biochemical tests. Seven candidate isolates (high in fluorescein, pyocyanin and siderophore production) and crops belonging to different families (Pigeon pea and Pea (Leguminoseae); Tomato (Solanaceae); Okra (Malvaceae)) were selected to identify the crop responsiveness to different isolates. Seed bacterization had significant response for root development and showed negligible to very low increase in shoot length. Higher increase in root length was observed in Pigeonpea and Pea with isolate # P44, P109, P144, and P195.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Pal, D., Kotesthane, A. and Dey, U., Screening for Plant Growth Promoting Activity (PGPA) of fluorescent Pseudomonas spp., Int. J. Pure App. Biosci.4(2): 156-162 (2016). doi: http://dx.doi.org/10.18782/2320-7051.2270
