OCCURRENCE OF AM SPORES IN RHIZOSPHERE OF SPICES

M. GEETHANJALI¹, K. KUMUTHA²*, R. SUBHASHINI³, K. ERAIVAN ARUTKANI AIY⁴, A. BEAULAH^5
1Department of Agricultural Microbiology, Agricultural College and Research Institute, Madurai, 625 104, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
²Department of Agricultural Microbiology, Agricultural College and Research Institute, Madurai, 625 104, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
³Department of Agricultural Microbiology, Agricultural College and Research Institute, Madurai, 625 104, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
⁴Agricultural College and Research Institute, Killikulam, 628252, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
⁵Department of Horticulture, Agricultural College and Research Institute, Madurai, 625 104, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
* Corresponding Author : kkumuthatnau@gmail.com

Received : 30-06-2019     Accepted : 27-07-2019     Published : 30-07-2019
Volume : 11     Issue : 7       Pages : 1655 - 1659
Int J Microbiol Res 11.7 (2019):1655-1659

Keywords : Arbuscular Mycorrhizal (AM) fungi, Infectivity, Vigour index
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Agricultural College and Research Institute, Madurai, 625 104, Tamil Nadu Agricultural University, Coimbatore, 641 003, India
Author Contribution : All authors equally contributed

Arbuscular Mycorrhizal (AM) fungi belonging to the phyllum glomeromycota are beneficial plant symbionts that form mutualistic relationship with roots of most perennial crops. This fungal association allows plants to explore larger volumes of soil to absorb more water and nutrients, especially immobile nutrients like P, Zn and Cu, by producing special structures called hyphae, vesicles and arbuscules, which results in enhancement of plant growth and productivity. Spices are cultivated in varying climatic and soil conditions, which are highly responsive to AM inoculation. In order to develop suitable AM inoculant for spices, this study has been made with isolation of AM spores from different locations of southern parts of Tamil Nadu and screening for infectivity. Soils were analysed for various physico-chemical properties and the natural occurrence of AM spores. Spores collected from Red chilli grown at Bodimettu showed high infectivity and enhanced the vigour of maize to a considerable extent, which has been selected for inoculating chillies under rainfed cultivation as an inoculant for drought mitigation.

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