Subcellular adaptation to salinity and irradiance in Dunaliella salina
2003
Stoynova-Bakalova, E. | Toncheva-Panova, T. (Bulgarian Academy of Sciences, Sofia (Bulgaria). Inst. of Plant Physiology "Acad. M. Popov")
Dunaliella salina V-63 was cultivated in different concentrations of NaCl (0.5, 1.0, 2.5, 3.0, or 4.0 M) and at two irradiances (170 or 220 micromol/square m/s). Concentration-dependent suppression of growth was observed above 1 M NaCl, and elevated salinity induced formation of salt-containing vacuoles. However, the changes in the chloroplast ultrastructure following changes in salinity and irradiance (increase of invaginations and protuberances, numerous grana with low number of thylakoids, less number of starch grains, etc.) appeared to be of primary importance.
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