Impact of Lysinibacillus macroides, a potential plant growth promoting rhizobacteria on growth, yield and nutritional value of tomato plant (Solanum lycopersicum L. F1 hybrid Sachriya)
Compost; Lysinibacillus macroides; Nitrogen fixing; PGPR; Pseudomonas fluorescens; Solanum lycopersicum
Plant growth promoting bacteria enhance the growth in plants by solubilizing insoluble minerals, producing phytohormones and by secreting enzymes that resist pathogen attack. The present study was aimed at identifying the potential of Lysinibacillus macroides isolated from pea plant possessing rich microbial rhizobiome diversity in promoting the growth of tomato plant (Solanum lycopersicum L.). Potential of L. macroides in the promotion of S. lycopersicum L. growth by increased shoot length, terminal leaf length and breadth was assessed. Anatomical sectioning of stem and root revealed no varied cellular pattern indicating that the supplemented bioculture is not toxic to S. lycopersicum. Plantlets treated with L. macroides along with organic compost showed an increased total phenol content (17.580.4 mg/gm) compared to control samples (12.440.41 mg/g). Carbohydrate content was noticed to be around 1.3 folds higher in the L. macroides plus compost mixture supplemented slots compared to control sample. Significant increase in shoot length was evident in the L. macroides plus compost supplied slots (23.42.7 cm). Plant growth promoting properties might be due to the nitrogen fixing activity of the bacteria which enrich the soil composition along with the nutrients supplied by the organic compost. Rich microbial rhizobiome diversity in pea plant and the usage of L. macroides from a non-conventional source improves the diversity of the available PGPR for agricultural practices. Further research is needed to detect the mechanism of growth promotion and to explore the plant microbe interaction pathway. Jyolsna et al. (2021).
Jyolsna K.S.; Bharathi N.; Riyaz Ali L.; Paari K.
Plant Science Today, Vol-8, No. 2, pp. 365-372.
https://doi.org/10.14719/pst.2021.8.2.1082 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107042488&doi=10.14719%2fpst.2021.8.2.1082&partnerID=40&md5=77ccafd23da088c765ac2f3a8a414542
Jyolsna K.S., Department of Life Sciences, CHRIST (Deemed to Be University), Bengaluru, Karnataka, 560 292, India; Bharathi N., Department of Life Sciences, CHRIST (Deemed to Be University), Bengaluru, Karnataka, 560 292, India; Riyaz Ali L., Department of Life Sciences, CHRIST (Deemed to Be University), Bengaluru, Karnataka, 560 292, India; Paari K., Department of Life Sciences, CHRIST (Deemed to Be University), Bengaluru, Karnataka, 560 292, India