National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Arbuscular mycorrhizas (AM) are mutualistic associations formed between the roots of 80 per cent of terrestrial plant species. The biotrophic AM fungus receives plant carbohydrates and in return provides the plant with mineral nutrients. AM fungi influence the physicochemical properties of the soil and directly or indirectly contributes to the release of phosphate from inorganic complexes of low solubility and also improve nutrient uptake and carbon metabolism. In a pre-contact stage sometimes also referred to as pre-symbiotic stage-mutual recognition is characterized by hyphal-branching responses elicited by plant-derived strigolactones (SLs) and plant gene expression induced by diffusible fungal-signalling molecules (Akiyama et al., 2005). In response to mechanical and chemical signals emanating from fungal hyphopodia, the contacted plant cell forms an intracellular accommodation structure, the pre-penetration apparatus (PPA) that guides intracellular fungal passage into deeper cell layers (Genre et al., 2005). Later, several authors reported a higher tolerance of mycorrhizal plants to abiotic stresses such as drought, salinity, or presence of heavy metals (Miransari, 2010).
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