Establishment of stable NaCl-resistant rice plant lines from anther culture: distribution pattern of K+/Na+ in callus and plant cells |
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Authors: | P Sathish O L Gamborg M W Nabors |
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Institution: | (1) Department of Biology, Colorado State University, Ft. Collins, CO 80523, USA E-mail: sathish@biokemi.su.se, US |
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Abstract: | Soil salinity markedly suppresses the growth of rice (Oryza sativa L.). We established rice anther culture to select for rice callus lines adapted to NaCl stress and regenerated plant progenies
resistant to a NaCl stress of E.C. 16–18 mS. When exposed to NaCl, NaCl-adapted rice calli lost K+ and accumulated little Na+. Conversely, plant cells lost relatively little K+ and accumulated Na+. It is plausible that, NaCl-resistant mechanisms are different at callus and plant level. The stable NaCl-resistant lines
produced have potential use in elucidating the molecular mechanisms behind NaCl resistance in rice and in rice breeding.
Received: 27 February 1997 / Accepted: 4 April 1997 |
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Keywords: | Anther culture NaCl-resistance K+/Na+ analysis Oryza sativa L Rice |
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