Plant growth promoting potential of endophytic bacteria isolated from Piper nigrum |
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Authors: | B Jasim C John Jimtha Mathew Jyothis E K Radhakrishnan |
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Institution: | 1. School of Biosciences, Mahatma Gandhi University, Priyadharshini Hills PO, Kottayam Dist, 686560, Kerala, India
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Abstract: | Piper nigrum is an interesting plant to study the endophytic microbial factors affecting plant growth because of its unique features. Endophytic bacterial isolation from the plant resulted in the isolation of twelve bacterial isolates which were screened for various plant growth promoting properties like phosphate solubilization, ACC deaminase production, siderophore production etc. Interestingly, seven isolates were found to have IAA biosynthetic potential. Bacterial isolates with multiple plant growth promoting properties were studied for their growth promoting effect on Vigna radiata seedlings. This resulted in the identification of Klebsiella sp. (PnB 10) and Enterobacter sp. (PnB 11) as the isolates with excellent growth promoting properties. The results confirm promising applications of the endophytic bacterial isolates obtained in the study and also their possible growth promoting effect in P. nigrum. |
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