| Autor: |
Giri B; Department of Botany, University of Delhi, 110007 Delhi, India. bhoopg@yahoo.com, Mukerji KG |
| Jazyk: |
angličtina |
| Zdroj: |
Mycorrhiza [Mycorrhiza] 2004 Oct; Vol. 14 (5), pp. 307-12. Date of Electronic Publication: 2003 Oct 23. |
| DOI: |
10.1007/s00572-003-0274-1 |
| Abstrakt: |
A field experiment was conducted to examine the effect of the arbuscular mycorrhizal fungus Glomus macrocarpum and salinity on growth of Sesbania aegyptiaca and S. grandiflora. In the salt-stressed soil, mycorrhizal root colonisation and sporulation was significantly higher in AM-inoculated than in uninoculated plants. Mycorrhizal seedlings had significantly higher root and shoot dry biomass production than non-mycorrhizal seedlings grown in saline soil. The content of chlorophyll was greater in the leaves of mycorrhiza-inoculated as compared to uninoculated seedlings. The number of nodules was significantly higher in mycorrhizal than non-mycorrhizal plants. Mycorrhizal seedling tissue had significantly increased concentrations of P, N and Mg but lower Na concentration than non-mycorrhizal seedlings. Under salinity stress conditions both Sesbania sp. showed a high degree of dependence on mycorrhizae, increasing with the age of the plants. The reduction in Na uptake together with a concomitant increase in P, N and Mg absorption and high chlorophyll content in mycorrhizal plants may be important salt-alleviating mechanisms for plants growing in saline soil. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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