Abstract: Arbuscular Mycorrhizal (AM) fungal status of eight tree species from Pachaimalai Hill, Eastern Ghats of Tamil Nadu was surveyed. AM fungal colonization was observed in the roots of all the tree species examined. The AM fungal colonization was characterized by the presence of any of the fungal structures such as coenocytic hyphae, hyphal coils, vesicles and arbuscules. The extent of AM colonization varied among the tree species. The average percentage of AM fungal colonization ranged from 26 (Strychnos nux-vomica) to 86 (Millingtonia hortensis). Roots of all tree species formed hyphae, however the formation of vesicles, arbuscules and hyphal coil varied among the tree species. A total of 37 morphotypes of AM fungi corresponding to 13 genera and 8 families were recorded. Of the 37 morphotyes, 10 belonged to the genus Acaulospora, 6 to the genus Glomus, 4 each to the genera Rhizoglomus, Gigaspora, 3 to Funneliformis, 2 each to genera Septoglomus, Paraglomus, and one each to Entrophosphora, Dominikia, Claroideoglomus, Scutellospora and Archaeospora. Species richness was highest in Tarenna asiatica(23 species) and lowest in Strychnos nus-vomica (13 species).
Keywords: Arbuscular Mycorrhizal fungi (AM fungi), spore density, tree species, Pachaimalai hills.
Title: SURVEY OF MYCORRHIZAL ASSOCIATION IN SOME TREES OF PACHAMALAI HILLS, THE EASTERN GHATS OF TAMIL NADU
Author: Vinothponpandian S, Egbert Selwin Rose A
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148 (online)
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