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Publication Type J
Authors Sun, W. Q., X. P. Li and B. L. Ong
Title Preferential accumulation of D-pinitol in Acrostichum aureum gametophytes in response to salt stress
Source Physiologia Plantarum
Abstract Growth and metabolic responses to salt stress were studied in gametophytes of Acrostichum aureum L. (a mangrove fern). Gametophytes mere cultured in 0-170 mM NaCl solutions. The growth of gametophytes was best in low NaCl concentrations (35 and 85 mM), and was retarded at higher NaCl concentrations, Photosynthetic rate of gametophytes was also significantly reduced when grown in high NaCl concentrations. Severe salt stress (>120 mM NaCl) led to a preferential accumulation of D-pinitol in gametophytes, whereas the sporophyte accumulated D-1-O-methyl-muco-inositol. The content of D-pinitol reached up to 50% of the soluble carbohydrate pool of gametophytes under 155 and 170 mM NaCl. The accumulation of D-pinitol and other cyclitols in gametophytes was correlated with the retention of photochemical efficiency of photosystem II and the survival of gametophytes after transfer to solutions containing 340 and 600 mM NaCl, respectively.
ISSN 0031-9317
ISBN 0031-9317
Publication Date Jan
Year Published 1999
Volume 105
Issue 1
Beginning Page 51-57
Digital Object Identifier (DOI) 10.1034/j.1399-3054.1999.105109.x
Unique Article Identifier WOS:000079282400008
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