Recovery of plant growth-promoting rhizobacteria from sodium alginate beads after 3 years following storage at 4 degrees C.
Two plant growth-promoting bacteria, Bacillus subtilis and Pseudomonas corrugata, immobilized in a sodium alginate based formulation were evaluated for their survival, viability and plant growth-promoting ability after 3 years of storage at 4 degrees C. Populations of both of the bacterial isolates recovered from the immobilized sodium alginate beads were in the order of 10(8) cfu g(-1). The plant-based bioassay indicated that the plant growth promotion ability of both of the bacterial isolates was equal to those of fresh broth-based formulations. The bacterial isolates retained the root colonization, and antifungal and enzyme activities in the alginate-based formulation during storage.
Trivedi
Pankaj
P
Environmental Physiology and Biotechnology, GB Pant Institute of Himalayan Environment and Development, Kosi-Katarmal, Almora, Uttaranchal, India.
Pandey
Anita
A
D000464:Alginates / Q000302:isolation & purification*; D001412:Bacillus subtilis / Q000302:isolation & purification* / Q000502:physiology; D018914:Cells, Immobilized; D015169:Colony Count, Microbial; D020723:Glucuronic Acid / Q000302:isolation & purification; D006603:Hexuronic Acids / Q000302:isolation & purification; D050296:Microbial Viability; D008863:Microspheres; D011549:Pseudomonas / Q000302:isolation & purification* / Q000502:physiology; D012034:Refrigeration; D014908:Triticum / Q000254:growth & development* / Q000382:microbiology
D000464:Alginates; D006603:Hexuronic Acids; D020723:Glucuronic Acid