International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 5
First page : (964) Last page : (971)
Article doi: http://dx.doi.org/10.18782/2320-7051.2835
Effects of Serratia liquefaciens isolate KM2 on Physiology and Phytohormones of Mung bean (Vigna radiata L.)
Meha D. Desai1, K. P. Suthar2* and M. D. Khunt3
1Department of Biotechnology, Veer Narmad South Gujarat University, Surat 375 007, Gujarat, India
2Department of Plant Molecular Biology and Biotechnology, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Navsari 396 450, Gujarat, India
3Department of Plant Pathology, N. M. College of Agriculture, Navsari Agricultural University,
Navsari 396 450, Gujarat, India
*Corresponding Author E-mail: kiransuthar@nau.in
Received: 12.04.2017 | Revised: 18.05.2017 | Accepted: 26.05.2017
ABSTRACT
The potential Plant Growth Promoting Rhizobia Serratia liquefaciens isolate KM2 (SL-KM2) having direct and indirect PGPR traits was evaluated for its effect on growth and biochemical content of Mung bean (var. GM2). The SL-KM2 seed treatment improved the physiological parameters viz., root length, root volume, shoot length and fresh biomass as compared to untreated control. The maximum root length (22.5 cm), root volume (1.513 ml), shoot length (8.1 cm) and fresh biomass (0.48 g) was observed under seed treatment condition at 10 DAS, further these physiological parameters was improved as compared to untreated at 20 DAS. The seed treatment also improved the biochemical content at 10 and 20 DAS, where maximum cholorphyll (0.76 mg g-1), protein (1.63 %) and total phenol content (leaves: 0.23%; Roots: 0.24%) was reported at 20 DAS. The seed treatment positively influences phytohormones content where the increase in gibberellic acid (GA3) and indole acetic (IAA) content in leaves and root tissue was observed whereas jasmonic acid (JA) and abscisic acid (ABA) content was reduced. The maximum increase in GA3 (64.56 nM g-1 FW) and IAA (15.13 nM g-1 FW) was observed under SL-KM2 seed treatment condition at 20 DAS. Overall, SL-KM2 seed treatment improved Mung bean growth, biochemical content and positively influenced the phytohormones that lead to improved plant development. This isolate can be in future exploited under field condition.
Key words: Mung bean (Vigna radiata L.), Serratia liquefaciens isolate KM2, PGPR, Phytohormones
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Desai, M.D., Suthar, K.P. and Khunt, M.D., Effects of Serratia liquefaciensisolate KM2 on Physiology and Phytohormones of Mung bean (Vigna radiata L.), Int. J. Pure App. Biosci.5(5): 964-971 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2835
