First Report on Novel Multifunctional Plant Growth Promoting Bacterium Sporosarcina globispora EU-GRN-46 from Himalayan Region of Kinnaur and Their Role on Growth Promotion of Garlic (Allium sativum L.)
摘要
Plant growth promoting (PGP) rhizobacteria are crucial source of fertilizer, which have the potential to boost crop productivity and encourage plant development. Plant nutrition status can be improved by microbial inoculation with naturally occurring nutrients or by adding chemical fertilizers. The purpose of present study was to assess fertilization and multifunctional PGP inoculant on growth promotion of garlic (Allium sativum L.). A total of 65 bacterial strains were isolated from rhizospheric region of garlic and screened for various PGP attributes. On the basic of multifunctional PGP attributes, the rhizobacterial strain EU-GRN-46 was selected and identified as Sporosarcina globispora and evaluated on garlic crop under in-vitro and in-vivo conditions. The strain EU-GRN-46 showed efficient gibberellin producer GA1 (45 ng mL− 1) along with other PGP attributes. To the best of our knowledge, the present study is the first report on gibberellin producing novel bacterial strain Sporosarcina globispora EU-GRN-46 for growth enhancement of garlic. Moreover, the inoculation of this identified strain improves the growth and physiological parameters of garlic as compared to cattle dung manure and chemical fertilizer. The efficient strain EU-GRN-46 could be used as bioinoculants for horticultural crops grown in mountainous regions.