Phosphatase activity and cytokinin content in cowpeas (Vigna unguiculata) inoculated with a vesicular-arbuscular mycorrhizal fungus |
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Authors: | T. R. Thiagarajan M. H. Ahmad |
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Affiliation: | (1) The Biotechnology Centre, University of the West Indies, Kingston 7, Jamaica |
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Abstract: | We examined the effect of a vesicular-arbuscular mycorrhizal (VAM) fungus Glomus pallidum Hall on the phosphatase activity and cytokinin concentration in cowpea [Vigna unguiculata (L.) Walp] roots at successive stages of plant growth. Both acid and alkaline phosphatase activity were significantly (P=0.05) higher in mycorrhizal than in non-mycorrhizal roots 30 days after inoculation. Similarly, the cytokinin content was significantly increased in mycorrhizal roots compared to non-mycorrhizal roots. Our study suggests that these biochemical changes may improve the growth of mycorrhizal cowpea plants. |
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Keywords: | Vesicular-arbuscular mycorrhizae Glomus pallidum Cowpea Vigna unguiculata Cytokinin Roots |
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