The ability of some soils to suppress plant disease has been well documented 1. An important example is the development of soils suppressive to Gaeumannomyces graminis var. tritici (Ggt), the causative agent of 'takeall' of wheat 2. Such natural examples of biological control have been attributed to the indigenous beneficial rhizosphere microflora (see Glossary), especially fluorescent pseudomo...

Strains of fluorescent pseudomonads, isolated from the phyllosphere of grasses, were analysed by a polyphasic approach in order to clarify their interspecific position. Classification on the basis of ribotyping revealed six genotypes; four of these, which could be differentiated clearly from each other and from Pseudomonas species with validly published names on the basis of phenotypic features...

CURRENT SCIENCE, VOL. 85, NO. 12, 25 DECEMBER 2003 1693 *For correspondence. (e-mail: [email protected]) 64. Iso, M., Chen, B., Eguchi, M., Kudo, T. and Shreshtha, S., Production of biodiesel fuel from triglycerides and alcohol using immobilized lipase. J. Mol. Catal. B, Enzymes, 2001, 16, 53–58. 65. Nakanishi, K. and Matsuno, R., Continuous peptide synthesis in a water-immiscible o...

metabolites. The Chemical Society, Special Publication No. 5, London, England. KOFFLER, H., EmERSON, R. L., PERLMAN, D., AND BURRIS, R. H. 1945 Chemical changes in submerged penicillin fermentations. J. Bacteriol., 60, 517-548. O'BRIEN, E., WAGMAN, G. H., AND PERLMAN, D. 1952 Synthetic media for growth and streptomycin production by Streptomyces griseus. Bacteriol. Proc., p. 25. PUGH, L., KATZ,...

Seven isolates of fluorescent pseudomonads were evaluated for their effect on plant growth promoting traits, both under normal and saline conditions using tomato plants. Fifteen rhizosphere samples from crop fields' of rice, chilly, ragi, beans and garden soils from different regions of India were collected and used for further study. They were characterized morphologically and biochemically wh...

A commercially available microbial inoculant (Plant Growth Activator Plus) that contains 50 microorganisms, primarily bacteria, was evaluated in a soilless container substrate to determine its effects on root bacterial populations and growth response of container-grown plants at three fertilizer rates. The tropical ornamental plants included hibiscus (Hibiscus rosa-sinensis ‘Double Red’), spath...

Many root-colonizing pseudomonads are able to promote plant growth by increasing phosphate availability in soil through solubilization of poorly soluble rock phosphates. The major mechanism of phosphate solubilization by pseudomonads is the secretion of gluconic acid, which requires the enzyme glucose dehydrogenase and its cofactor pyrroloquinoline quinone (PQQ). The main aim of this study was ...