Alleviating plant salt stress and remediating saline soils are of great economic interest. Beneficial microbes such as Arbuscular Mycorrhizal (AM) fungi, Plant Growth Promoting Rhizobacteria (PGPRs), etc. are associated with many plants including trees. These beneficial microbes can cope up with salinity and help the plants to survive in such soils. In this study, diversity status of beneficial...

Abstrak. Salah satu perkebunan di Indonesia menghasilkan kakao (Theobroma cacao L.), yang memberikan kontribusi signifikan terhadap perekonomian dan cadangan devisa Indonesia. Masih terdapat tantangan dalam pengembangan seluruh Indonesia, termasuk Provinsi Aceh, antara lain adanya penyakit hama berkontribusi rendahnya produktivitas kakao. Penelitian ini bertujuan adalah untuk mendapatkan isolat...

In the present study, the effect of different plant growth promoting rhizobacteria (PGPR) like Azospirillum brasilense and Pseudomonas fluorescens on growth parameters and the production of terpenoid indole alkaloids are investigated in two varieties ‘rosea’ and ‘alba’ of Catharanthus roseus. The production of IAA by the PGPR has taken as main criteria in the selection of PGPRs for the seed and...

Strains of Vibrio spp. isolated from roots of the estuarine grasses Spartina alterniflora and Juncus roemerianus produce the phytohormone indole-3-acetic acid (IAA). The colorimetric Salkowski assay was used for initial screening of IAA production. Gas chromatography-mass spectroscopy (GC-MS) was then employed to confirm and quantify IAA production. The accuracy of IAA quantification by the Sal...

The effect of auxin application on auxin metabolism was investigated in excised hypocotyl cultures of carrot (Daucus carota). Concentrations of both free and conjugated indole-3-acetic acid (IAA), [2H4]IAA, 2,4-dichlorophenoxyacetic acid, and naphthaleneacetic acid (NAA) were measured by mass spectroscopy using stable-isotope-labeled internal standards. [13C1]NAA was synthesized for this purpos...

Wheat is the main staple food in world, so it backbone of security. Drought not only affects growth and development but also ultimately has a severe impact on overall productivity crop plants. Some bacteria are capable producing exopolysaccharides (EPS) as survival mechanism, along with other metabolites, which help them survive stressful conditions. The present study was conducted aim inducing...

Salinity is the major environmental factor limiting plant growth and productivity. Under salinity conditions, plant growth is affected by a number of factors such as hormonal and nutritional imbalance, ion toxicity, physiological disorders, susceptibility to diseases, etc. Plant growth under stress conditions may be enhanced by the application of microbial inoculation including plant growth pro...

Biofertilizers containing living organisms are attractive because of their potential positive impact on plant growth and reduced environmental effect compared to mineral fertilizers. Many studies have reported the growth-promoting rhizobacteria (PGPR) cyanobacteria, applied singly or in combination. In present study, combined PGPR cyanobacteria Triticum aestivum L. was examined a hydroponic sys...

A symbiotic strain was isolated from the root nodules of the legume pulse Phaseolus mungo L and designated as PM 25. The strain was identified as Rhizobium sp. on the basis of the physiobiochemical characteristics and 16S rDNA sequence based homology. The Minimum Inhibitory Concentration of the analogue 5-fluro-tryptophan was 3.0 mM. The analogue (5FT) resistant mutants were screened from wild ...