Studies on the Potential of Lactoplantibacillus plantarum in Plant Growth Promotion

Plant growth-promoting Rhizobacteria are bacteria associated with plant roots and enhancing plant growth. Numerous compounds generated by rhizobacteria, like esterases, oxidases, bacteriocins, exopolysaccharides and conjugated linoleic acid, have been linked to the indirect enhancement of plant growth and control of pathogenic organisms. As lactic acid bacteria are present in the rhizosphere and other parts of the plants, the possible role of lactic acid bacteria in promoting plant growth is studied in this paper.

A comparison of well-established plant growth promoting bacteria (PGPR) Azotobacter spp. and the test organism Lactoplantibacillus plantarum ((MTCC 2973) was done by testing both the organisms for antimicrobial activity, gibberellic acid production, Indole acetic acid production and Siderophore production. The pot experiment studied the effect of Lactoplantibacillus plantarum on the growth of Cress Seeds (Lepidium sativum).

The study found that L. plantarum and Azotobacter spp. both exhibit antibacterial activity against Xanthomonas spp. using Lactoplantibacillus plantarum to grow plants is eco-friendly and economical, offering a sustainable approach with potential applications in agriculture and environmental management.