Record ID No. |
4026 |
Author(s) |
Jayaa S. Pawaara, Umesh B. Kakde , 2012 |
Affiliation |
Elphinstone College, Fort, Mumbai-32, Maharashtra, India. |
Title |
Study of arbuscular mycorrhiza associated with some important medicinal plants in suburban area of Mumbai |
Source. Vol.(no):Page |
Online International Interdisciplinary Research Journal, 2(2): 116-127p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Ecology |
Sub-subjects |
Genetic Diversity |
Host |
Oroxylum indicum, Desmodium gangeticum, Bacopa monnieri and Zingiber officinale |
Organism |
Acaulospora appendicula, Gigaspora gigantea, Glomus aggregatum, G. boreale, G. fasciculatum, G. geosporum, G. heterosporum, G. segmentatum, G. tortuosum, G. radiatum, Scutellispora pellucida, and S. auriglobosa |
Country |
India, South Asia |
Abstracts |
A mycorrhizal fungus infects the plant roots to form symbiotic associations whereby the fungi give nutrients, water and protection to the plant in exchange for food in the form of carbon. Mycorrhizal diversity is important to maintaining the crop vigor and soil fertility. They play a crucial role in plant nutrient uptake, water relations, ecosystem establishment, plant diversity, and the productivity of plants. Hence, the study of mycorrhizal diversity is needed to understand the roles of the various species of mycorrhizal fungi in a habitat. The present investigation was carried out to study the prevalence of AM fungi in some medicinal plants growing in tribal belt in and around Mumbai by determining the extent of root colonization, spore density in the rhizospheric soil and the actual species composition associated with each host. In all 15 medicinal plants, hosts were screened for the presence of AVM fungi. Out of these 11 medicinal plant hosts from different families were found to be mycorrhizal. The roots of the hosts which were not found colonized with AM fungi were Oroxylum indicum, Desmodium gangeticum, Bacopa monnieri and Zingiber officinale. The colonization was observed in the form of mycelium, arbuscules, vesicles and chlamydospores. The arbuscular mycorrhizal fungi, spores isolated from different sites were represented by six genera, namely 1 species of Acaulospora, 1 species of Gigaspora, 8 species of Glomus and 2 species of Scutellispora. The AM fungi spores were from five genera and the arbuscular mycorrhizal fungi species were almost same in all the rhizoshperic soil of native medicinal plants (1 species of Acaulospora) namely A. appendicula, 1 species of Gigaspora namely G. gigantea, 8 species of Glomus namely G. aggregatum, G. boreale, G. fasciculatum, G. geosporum, G. heterosporum, G. segmentatum, G. tortuosum, G. radiatum, 2 spore of Scutellispora namely S. pellucida, and S. auriglobosa. |