1Department of Biotechnology, Dr. M.G.R. Educational and Research Institute (Deemed to be University), Chennai-600 095, Tamil Nadu, India
2Department of Anatomy, Biomedical Research Unit and Laboratory Animal Centre, Saveetha Institute of Medical and Technology Science, Saveetha University, Chennai-600 095, Tamil Nadu, India
3Department of Food Processing Technology, AMET University, Kanathur, Chennai-603 112, Tamil Nadu, India
*Corresponding Author: Thirunavukkarasu Palaniyandi, Department of Biotechnology, Dr. M.G.R. Educational and Research Institute (Deemed to be University), Chennai-600 095, Tamil Nadu, India, Email: ppthirunacas@gmail.com
Online published on 1 July, 2025.
Plant growth promoting rhizobacteria (PGPR) is beneficial bacteria that are colonizing in the plant root and enhance into the plant growth. The use of PGPR is steadily increasing in agriculture and offers an attractive way to replace chemical fertilizers and pesticides. In this present study, PGPR were isolated from marine sediment, marine water and coastal sand dune plants. From that, 480 different bacterial strains were isolated. Antimicrobial activity and screening of enzyme producing bacteria from the aquatic and terrestrial environments acted as plant growth inducer. Among 480 strains, the 14 strains of Pseudomonas spp exhibited the production of indole acetic acid (IAA), extracellular polysaccharides (EPS) and antimicrobial activity. This study
concluded that PGPR from marine environment can be used as plant growth promoters in agricultural crops.
Twenty two marine sediments, marine water, coastal sandune plant samples were collected from coastal area of Marakkanam slattern, (12.1899°N, 79.9249°E) Tamil Nadu, India at the depth of 10 cm.
These 14 selected strains from marine environment can be potentially used in therapeutic and plant growth applications.
Antimicrobial activity, Extracellular polysaccharides (EPS), Indole Acetic Acid (IAA), Marine bacterium, Plant growth promoting rhizobacteria
