Restoration of a highly degraded forest, which had lost its natural capacity for regeneration, was attempted in the Nanmangalam Reserve Forest in Eastern Ghats of India. In field experiment, 12 native tree species were planted. The restoration included inoculation with a consortium of 5 native plant growth-promoting bacteria (PGPB), with the addition of small amounts of compost and a chemical f...

Plant growth-promoting bacteria (PGPB) of the genus Azospirillum are known to enhance the growth of numerous agricultural crops. We are proposing the use of these bacteria as “microalgae-growth promoting bacteria” (MGPB) to enhance the cleaning capacity of polluted water by the freshwater microalgae Chlorella vulgaris and C. sorokiniana. Deliberate inoculation of Chlorella sp. with a terrestria...

The metal resistant-plant growth-promoting bacterial (PGPB) strains PsM6 and PjM15 isolated from a serpentine soil were characterized as Pseudomonas sp. and Pseudomonas jessenii, respectively, on the basis of their morphological, physiological, biochemical characteristics and 16S rDNA sequences. Assessment of plant growth-promoting parameters revealed the intrinsic ability of the strains for th...

The effectiveness of plant growth promoting bacteria (PGPB) in improving metal phytoremediation is still limited by stunted plant growth under high soil metal concentrations. Meanwhile, mixed planting with leguminous plants is known to improve yield in nutrient deficient soils but the use of a metal tolerant legume to enhance metal tolerance of a phytoremediator has not been explored. We compar...

The application of PGPB to agriculture is increasing as it offers an alternative to the use of chemical fertilizers, pesticides and other supplements. Maize (Zea mays L.) is one of the world’s principal cereal crops, grown for grain, silage and biofuel. Nitrogen fertilizer constitutes one of the major costs in maize production, and PGPB poses a potential alternative for achieving more sustainab...

Plants rely on their microbiota for improving the nutritional status and environmental stress tolerance. Previous studies mainly focused bipartite interactions (a plant challenged by a single microbe), while responses to multiple microbes have received limited attention. Here, we investigated local systemic changes induced in wheat two growth-promoting bacteria (PGPB), Azospirillum brasilense P...

Plant growth-promoting bacteria (PGPB) are commonly used to improve crop yields. In addition to their agricultural usefulness, there are potential benefits in environmental applications. For example, species of Azospirillum can increase bioremediation of wastewater by microalgae by increasing algal proliferation and metabolism. Additionally, these genera and several other bacterial species may ...

Remote effects (occurring without physical contact) of two plant growth-promoting bacteria (PGPB) Azospirillum brasilense Cd and Bacilus pumilus ES4 on growth of the green microalga Chlorella sorokiniana UTEX 2714 were studied. The two PGPB remotely enhanced the growth of the microalga, up to six-fold, and its cell volume by about three-fold. In addition to phenotypic changes, both bacteria rem...

The phosphatidyl glycerophosphate B phosphatase of Escherichia coli has a multiple substrate specificity and a peculiar dual subcellular localization in the envelope. Its phosphatidyl glycerophosphate phosphatase activity is higher in the cytoplasmic membrane, while phosphatidic acid and lysophosphatidic acid phosphatase activities are higher in the outer membrane. The DNA sequencing of the pgp...

Plant-associated microorganisms play an important role in agricultural production. Although various studies have shown that single can exert beneficial effects on plants, it is increasingly evident when a microbial consortium—two or more interacting microorganisms—is involved, additive synergistic results be expected. This occurs, part, due to the fact multiple species perform variety of tasks ...