Abstract
CONTRARY to the findings of Norris1, it has been possible to show regularly, in detailed growth investigations, a favourable response to calcium by strains of R. trifolii and R. meliloti. This has expressed itself as faster and more sustained growth in the exponential phase and in a greater stationary population. Calcium is also needed for the normal rod-shaped cell, compared with the markedly swollen and vacuolated condition which is a characteristic result of calcium deficiency2.
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References
Norris, D. O., Nature, 180, 1493 (1958); Austral. J. Agric. Res., 10, 651 (1959).
Vincent, J. M., and Colburn, J. R., Austral. J. Sci., 23, 269 (1961).
Marshall, K. C., Nature, 177, 92 (1956).
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VINCENT, J., JANCEY, C. A Calcium-sensitive Strain of Rhizobium trifolii. Nature 195, 99–100 (1962). https://doi.org/10.1038/195099b0
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DOI: https://doi.org/10.1038/195099b0
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