Abstract
Recent studies indicate that rhizobia can associate intimately with various Gramineae. We describe a natural, beneficial association of R. leguminosarum by. trifolii and rice grown in Egyptian fields. A diversity of rice-adapted rhizobia was isolated from nodules of berseem clover inoculated with macerates of field-grown, surface-sterilized rice roots. Selected isolates exhibited plant growth-promoting activities on some rice varieties in gnotobiotic culture, and significant grain yield of rice in two cycles of field inoculation trials. These findings indicate their potential ability to enhance rice production in sustainable agriculture, and current studies should help to define how beneficial rhizobia can adapt to cereals and improve productivity in agronomic cropping systems.
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References
Dazzo FB, Yanni YG, Squartini A, Mateos P, de Bruijn F, Schmidt T, Ladha JK, Rolfe B, and Hartmann S 1998. Natural beneficial association of Rhizobium leguminosarum by. Trifolii and rice roots and its relevance to sustainable agriculture. In Elmerich C, Kondorosi A, and Newton W (eds.), Biological nitrogen fixation for the 2151 century, pp. 627–628, Kluwer Academic Publishers, Dordrecht.
Reddy PM, Ladha JK, So RB, Hernandez RJ, Ramos MC, Angeles OR, Dazzo FB, and de Bruijn FJ 1997. Rhizobial communication with rice roots: induction of phenotypic changes, mode of invasion and extent of colonization. Plant and Soil 194, 81–98.
Yanni YG, Rizk RY, Corich V, Squartini A, Ninke K, Philip-Hollingsworth S, Orgambide G, de Bruijn FJ, Stoltzfus J, Buckley D, Schmidt TM, Mateos PF, Ladha JK, and Dazzo FB 1997. Natural endophytic association between Rhizobium leguminosarum by. trifolii and rice roots and assessment of its potential to promote rice growth. Plant and Soil 194, 99–114.
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© 1999 Springer Science+Business Media New York
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Dazzo, F.B. et al. (1999). Ecology and Plant Growth-Promoting Activities of the Natural Association between Rhizobium Leguminosarum Bv. Trifolii and Rice Roots. In: Martĺnez, E., Hernández, G. (eds) Highlights of Nitrogen Fixation Research. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4795-2_19
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DOI: https://doi.org/10.1007/978-1-4615-4795-2_19
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