Plant Microbiomes for Sustainable Agriculture by Ajar Nath Yadav & Joginder Singh & Ali Asghar Rastegari & Neelam Yadav

Author:Ajar Nath Yadav & Joginder Singh & Ali Asghar Rastegari & Neelam Yadav
Language: eng
Format: epub
ISBN: 9783030384531
Publisher: Springer International Publishing

8.7.1 Production of Phytohormones by PPFM

Anitha (2010) reported Pink Pigmented Facultative Methylotrophic bacteria (PPFMs) was isolated from phyllosphere of soybean and groundnut producing phytohormone IAA and enhance plant growth. Keerthi et al. (2015) reported PPFM were used as biofertilizers in green grams isolated from phyllosphere environment. Tani et al. (2015) reported methylotrophic sp. producing both IAA and cytokinin associated with red pepper. Cytokinins are plant growth hormones, which regulate many physiological processes in plants such as to stimulate plant cell division, activate dormant buds, remove apical domination and induce seed germination. Ivanova et al. (2000) reported M. mosophilicum isolated from phyllosphere of rye grass lium perenne were able to synthesize cytokinins using biotest with the Amaranthus candatus L. seedlings. Holland (1997) reported application of exogenous methanol to the host plant, which stimulates the growth of PPFM bacteria by producing phytohormone cytokinins. In addition to the cytokinin PPFM bacteria isolated from different crops like soybean, barley, maize and Arabidopsis plant contain phytohormone zeatin and zeatin rhiboside (Long et al. 1996). The presence of phytohormone cytokinins and zeatin in the culture liquids of methylotropic bacteria is confirmed through chromotagraphic and enzyme immuno assay analysis (Ivanova et al. 2000). Epiphytic pink-pigmented methylotrophic bacteria produce cytokinin, stimulate germination and growth of wheat (Triticum aestivum) seedling was reported Meena et al. (2012). Phytohormone production by methylotrophic bacteria associated with different crops (Table 8.1).Table 8.1Phytohormone production by methylotrophic bacteria associated with different crops

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