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Vol. 11, Issue 9 (2022)

Effect of endophytic bacteria on physiological parameter’s under induced salt stress in sugarcane varieties

Author(s):
PS Chougule, AA Kale, PK Lokhande, RM Naik and BM Bhalerao
Abstract:
Sugarcane (Saccharum officinarum L., Family: Poaceae) is one of the most important crop for sugar production in India. Salinity one of the major problems for the losses of sugarcane productivity and endophytic bacteria not only enhance plant growth but also provide tolerance against salt. The potential endophytic bacteria such as Azospirillum, Acetobacter, Herbaspirillum, Azoarcus etc. isolated from saline soil were exploited to enhance the growth of sugarcane crop under salt stress conditions.
In the present study two sugarcane varieties viz. COC-671 susceptible and another tolerant COM-265 were used for comparative studies of salt stress. Endophytic bacteria can improve the plant tolerance against salt stress via the enhancing morphophysiological parameters. The current outcome focus on role of isolated endophytic bacteria and their consortium were investigated for their potential to ameliorate plant salinity stress. The sugarcane varieties COM-265 and COC-671 were subjected to four levels of salt stress (2, 4, 8ds/m and sodic soil) under glasshouse conditions by using a CRD.
Analyses of various plant growth parameters were conducted to investigate the stress tolerance induced by the endophytic bacteria on the contrary; treatment with endophytic bacteria significantly increased the resistance of sugarcane plants to salt stress by increasing morphophysiological parameters. High levels of NaCl exhibited negative effects in both varieties. However, inoculation with bacterial endophytes increased the morphophysiological traits of the plants in all treatments compared to uninoculated treatment. The endophytic bacterial strains consortium performed significantly better in all morphophysiological parameters such as leaf area, root and shoot length and total chlorophyll compared with various endophytic bacterial strain viz. Gluconacetobacter (GA), Azospirillum (ASP), Herbaspirillum (HERB) and Azoarcus (AAR) in the was higher than the control in the tissues of the bacterially treated plants, likely to keep the balance of nutrients. The results of the current investigation showed that the inoculation of plants with EB has the potential to improve plant growth and stress tolerance. Additionally, endophytic bacteria associated with host plants can interact with plants very well and can withstand highly salinized circumstances.
Pages: 101-111  |  356 Views  125 Downloads


The Pharma Innovation Journal
How to cite this article:
PS Chougule, AA Kale, PK Lokhande, RM Naik, BM Bhalerao. Effect of endophytic bacteria on physiological parameter’s under induced salt stress in sugarcane varieties. Pharma Innovation 2022;11(9):101-111.

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