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Activity changes of calmodulin and Ca 2+ ‐ATPase during low‐temperature‐induced anthocyanin accumulation in Alternanthera bettzickiana
Author(s) -
ChangQuan Wang,
YeFeng Zhang,
Tao Liu
Publication year - 2005
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.2005.00513.x
Subject(s) - anthocyanin , calmodulin , atpase , chemistry , biochemistry , biophysics , biology , enzyme , food science
Effect of low temperature on anthocyanin accumulation in seedlings of Alternanthera bettzickiana and activity changes of calmodulin (CaM) and Ca 2+ ‐ATPase under low temperature were studied. Results indicate that the increase of anthocyanin content was obviously paralleled not only by the activity of CaM but also by the activity of Ca 2+ ‐ATPase. In addition, seedlings were pretreated with CaM antagonist [chlorpromazine (CPZ)] before low‐temperature treatment in order to further investigate whether CaM plays a role in anthocyanin accumulation. CPZ pretreatment inhibited the activity of CaM and Ca 2+ ‐ATPase and caused a reduction in anthocyanin levels. Hence, it is concluded that CaM and Ca 2+ ‐ATPase were directly correlated with anthocyanin accumulation under low temperature, Ca 2 ± CaM may be involved in low‐temperature signal transduction leading anthocyanin synthesis.