Plant growth promoting potential of multifarious endophytic Pseudomonas lini strain isolated from Cicer arietinum L.

Abstract Chickpea ( Cicer arietinum ), one of the major pulse crops in India, endured extreme reduction production due to various abiotic and biotic stresses. Endophytic bacteria residing nodules roots chickpea plants enable host combating these Twenty endophytic isolated from were screened for multiple plant growth promoting traits like ammonia, organic acid, siderophore, hydrogen cyanide (HCN) phytohormone indole acetic acid (IAA) production. Out these, 86% isolates produced around 50% HCN 29% ACC (1-aminocyclopropane-1-carboxylic acid) deaminase, while only 14% solubilized phosphate. Interestingly, all able produce IAA ranging 11.6–85.2 μg/ml, isolate CPJN 13 being maximum producer (85.5±2.33 μg/ml). Isolate CPJN13 was selected optimization studies. The yield increased up 4 fold i.e. 331±4.96 μg/ml at optimized conditions. also confirmed by TLC HPLC analysis crude extract. application on seedlings resulted significant increase parameters. 16S rDNA sequencing revealed its similarity with Pseudomonas lini strain submitted NCBI accession number MF574502. To best our knowledge, this is first report presence P . as endophyte nodules. results study imply that P. has a potential role enhance growth.