Abstract
The present study analyzed the arbuscular mycorrhizal fungal spores in root colonization and spore population in rhizosphere soils samples in various medicinal plant species at Ponnuthu hills, Western Ghats of Coimbatore district, Tamilnadu, India. Root and rhizosphere soil samples were collected during the monthof August, 2018-March, 2019 from the surface to 30 cm depth as well as pH were also recorded. Totally 36 plant species belonging to 21 families were collected and identified. The present result showed arbuscular mycorrhizal spore population in the rhizosphere soil and root colonization of all the plant species. A total of21 AM fungal spores were recovered from the rhizosphere soil samples in this study region. The Glomus was dominant and found in rhizosphere soil samples in all the medicinal plant species. The maximum spore population was found in the rhizosphere soil samples of Hemidesmus indicus (573/100g of soil) whichbelongs to the family Asclepiadaceae and the lowest spore population was observed in the Abutilon indicum 145/100g of soil) which belongs to Malvaceae family. The highest 81% AM fungal colonization was found in roots of Gymnema sylvestre which belongs to the family Apocynaceae. While the lowest 16 % AM fungalcolonization was found in the root of Tridax procumbens which belongs to the family Asteraceae.
Highlights
Associations between plants and arbuscularIndia is recognized as one of the seventeen mega biodiversity zones of the world
The maximum spore population was found in the rhizosphere soil samples of Hemidesmus indicus (573/100g of soil) which belongs to the family Asclepiadaceae and the lowest spore population was observed in the Abutilon indicum 145/100g of soil) which belongs to Malvaceae family
AM fungal colonization and spore population of 36 plant species belongs to 21 families and analysis of the pH ranges between 4.8 and
Summary
India is recognized as one of the seventeen mega biodiversity zones of the world. The forest of Western Ghats, in view of their floristic diversity and numerous multipurpose species, are considered as a varietal storehouse of economically important plants and beneficial microbial communities. The fossil record suggests that AM were present in the subterranean parts of the earliest land regions [4]. Mycorrhizas are one such examples of a plant-fungal association that is found in plants under a range of abiotic conditions. Arbuscular mycorrhizal symbiosis that appeared with the first land plants more than 400 mycorrhizal fungi are common in natural and agricultural ecosystems. Of the several types of mycorrhizal fungi, the arbuscular mycorrhizal fungi (AMF) form important symbiosis with the flora prevalent in serpentine grasslands. About 85% of the traditional medicine used for primary healthcare are derived from plants. In many countries scientific investigations of medicinal plants have been initiated because of their contribution to healthcare. Million years ago, is still formed by the large majority of extent plant species with no host
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