Plant-growth promoting rhizobacteria (PGPR) is well known for its role in production of growth hormones, nutrient mineralization, and solubilization of nutrients by secreting organic acids and siderophore production, which plays a major role in mitigating biotic and abiotic stresses. In addition, PGPR...
Synthetic Plant Growth HormonesINDOLE-β-acetic acid or heteroauxine (I) is a product found in normal urine and is well known to have great growth-promoting action on plants, as shown by both the bending of the decapitated oat (Avena) and the pea curvature tests....
The individual role of biochar, compost and PGPR has been widely studied in increasing the productivity of plants by inducing resistance against phyto-pathogens. However, the knowledge on combined effect of biochar and PGPR on plant health and management of foliar pathogens is still at juvenile stag...
The IGF-1 axis plays a vital role in growth, development, and maintenance of various tissues and organs throughout life, but like many of the hormones released by our endocrine system, its activity and regulation can be influenced by aging. ...
The distribution of growth-promoting hormones produced by endophytic microorganisms towards plant tissues positively promotes plant growth [8]. Endophytes possess vital ability to mobilize insoluble phosphate and provide nitrogen to their host plants [9], [10]. Microbial endophytes colonize plant tissues ...
Plant Hormones Rhizobial symbiosis Soil Microbiology Introduction Imbalance in nitrogen (N) cycling, nutritional status, physical and biological properties of soil, incidence of pests and diseases, fluctuating climatic factors and abiotic stresses are the interlinked contributing factors for reduced agricultura...
Growth promoting substances are likely to be produced in large quantities by these rhizosphere microorganisms that influence indirectly on the overall morphology of the plants. Recent progress in our understanding on the diversity of PGPR in the rhizosphere along with their colonization ability and ...
positional cues in plants include hormones, short peptides, mobile transcriptional regulators, and, as recently reported, microRNAs. In addition, some transcription factors (TFs) are differentially inherited and/or expressed after cell division, which can also establish distinct transcriptional domains that...
Fig. 1. Mechanism of plant drought tolerance induced by plant growth promoting rhizobacteria. 2. Mechanisms of PGPR mediated drought stress tolerance Several mechanisms have been proposed for PGPR mediated drought stress tolerance in plants. It includes phytohormonal activity, volatile compounds, alteratio...
This is a short review of the classical and new, natural and synthetic plant hormones and growth regulators (phytohormones) and highlights some of their us