Abstract
Suspension cultures with cell doubling times of ca. 2 days were developed from the halophytic grass Spartina pectinata. Maximum rates of exponential growth measured by direct cell counts and by total culture packed-cell-volume were not significantly reduced by NaCl up to 200 mM but dropped beyond this point. In contrast, total cell production over a one week culture cycle, by both measures, was reduced in a roughly linear fashion between 0 and 500 mM NaCl. The pattern of growth in relation to NaCl is very similar to that of previously described cell suspensions derived from another halophyte, Distichlis spicata. In the field the latter is much more salt tolerant. The basis for the whole plant differences is not clear. They do not appear to reflect effectiveness of cell based salt tolerance or the presence of salt glands, which are reported here for the first time in S. pectinata and are found on the leaves of both species.
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Abbreviations
- 2,4-D:
-
2,4-dichlorophenoxyacetic acid
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Communicated by A. R. Gould
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Warren, R.S., Baird, L.M. & Thompson, A.K. Salt tolerance in cultured cells of Spartina pectinata . Plant Cell Reports 4, 84–87 (1985). https://doi.org/10.1007/BF00269213
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DOI: https://doi.org/10.1007/BF00269213