Effect of Mycorrhizal Association on Nodule Number, Mass, Leghaemoglobin and Free Proline Content in Macrotyloma uniflorum (Lam.) Verdc. Under PEG Induced Water Stress.

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Savitha, M.M. and Anitha, P. and Sumalatha, B.S. and Tejavathi, D.H. (2016) Effect of Mycorrhizal Association on Nodule Number, Mass, Leghaemoglobin and Free Proline Content in Macrotyloma uniflorum (Lam.) Verdc. Under PEG Induced Water Stress. International Journal of Current Microbiology and Applied Sciences ;, 5 (4). pp. 165-174. ISSN 2319 - 7706

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Abstract

Seeds of Macrotyloma uniflorum were fed with various concentrations of PEG ranging from 5 to 25% during germination and continued till 45 days after germination on alternate days to induce water stress. Inoculums of Glomus mosseae and G. fasciculalum were added to the soil in pot experiment before sowing the seeds. Nodule number, mass, leghaemoglobin and proline contents were estimated in 45 days old plants of unstressed, induced stressed, unstressed AMF treated and stressed AM fungal treated. Observations revealed that AM fungal association improves the number and mass of nodules along with enhanced contents of leghaemoglobin under induced stressed condition. Content of proline in leaves is increased under induced stress in both mycorrhizal and non mycorrhizal plants. However the increase is more evident in non mycorrhizal plants than AM fungal treated plants under induced stress indicating better osmotic adjustment by AM symbiosis. Among the two AM fungal species, G. mosseae is more compatible with the host by improving all the parameters studied than G. fasciculalum inoculated plants indicating its host specificity. The significance of AM fungal association in the process of nodulation of legumes is discussed.

Item Type: Article
Uncontrolled Keywords: Legumes, AM fungi, Nodulation, Leghaemoglobin, Proline, Macrotyloma uniflorum.
Subjects: Faculty of Science > Environmental and Biological Sciences > Botany
Divisions: Jnana Bharathi / Central College Campus > Department of Botany
Depositing User: Ms. Sathyavathi N
Date Deposited: 26 Sep 2016 09:19
Last Modified: 26 Sep 2016 09:19
URI: http://eprints-bangaloreuniversity.in/id/eprint/6064

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