ISOLATION AND CHARACTERIZATION OF RHIZOBIA BACTERIA FROM ROOT NODULE: A REVIEW Authors: Marchawala F , PATKAR R, UPADHAYAY D, BHATTACHARYA I, ANDHARE P
ABSTRACT
Nitrogen is critical element for plant growth and development which is supplied by mutual
symbiosis of rhizobia in cultivated legume plants. Biological process could help to strengthen
agricultural productivity and ensure food security. Rhizobia are documented as a plant growth
promoter and nitrogen fixers. Many indigenous rhizobial strains with the plant growth promoting
ability have already been identified and characterized from different legume plants. This study
could suggest potential application of Rhizobia for development of the sustainable agriculture and
a suitable candidate of biofertilizer which help in soil fertilization without applying chemical
fertilizers. Rhizobium–legume symbioses are of great ecological and agronomic importance,
thanks to their ability to repair large amounts of atmospheric nitrogen. These symbioses end in the
formation on legume roots of differentiated organs called nodules, during which the bacteria
reduce nitrogen into ammonia employed by the host plant. Rhizobia have the capacity to repair
nitrogen (N2) from the atmosphere. These bacteria live either freely within the soil or in beneficial
association with leguminous plants, including important crops like peas, beans and soybeans.
Keywords: Plant Growth Promotion, Sustainable agriculture, Biofertilizers, Nitrogen Fixing Bacteria, Legumes Publication date: 01/04/21 https://ijbpas.com/pdf/2021/April/MS_IJBPAS_2021_APRIL_SPCL_1026.pdfDownload PDFhttps://doi.org/10.31032/IJBPAS/2021/10.4.1026