Abstract

Plant hormones regulate several facets of growth and development of plants and also their responses to the environment. Hormones like salicylic acid, jasmonic acid, cytokinin, gibberellin, etc., play a crucial role in the plant-microbe interactions. Such hormones have great contribution in nodulation along with both constructive, as well as damaging roles, which might be due to various influences of these hormones during infection and nodule organogenesis. Various other functions such as arbuscular mycorrhizal (AM) symbioses and promotion of AM, the spatial and sequential regulation of plant hormones signaling during symbioses, which require sophisticated imaging tools. Apart from the plant-derived hormones, several plant-associated microbes also synthesize these plant hormones, and it seems very influential on plant partners. Microbial-derived hormones are also associated with the plant adaptation to biotic and abiotic stresses. This article mainly provides an insight into the molecular mechanisms and signal transduction pathway of plant hormones contributing significantly to plant-microbe interactions.

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