Bacillus as Plant Growth Promoting Rhizobacteria (PGPR): A Promising Green Agriculture Technology
Bacillus is a cosmopolitan bacteria present in all kinds of environments including rhizospheric soil. Root-associated Bacillus spp. usually promote plant growth by various means, e.g., production of phytohormone precursor, i.e., indole acetic acid (IAA-auxin), phosphate solubilization, and siderophore production or serve as biocontrol and are thus termed plant growth-promoting rhizobacteria (PGPR). This genus may also be used along with other biocompatible bacteria including nitrogen-fixing species like Azospirillum and Azotobacter and hence may be called as consortia of bacteria or which can be used as co-inoculant to increase/improve the fertility of soil. This chapter focused on the application of Bacillus on different economically important crops.
KeywordsBacillus PGPR ACC deaminase Ethylene IAA Auxin Siderophore Stress Bio-inoculant
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