Identification of cell wall genes modified by a permissive high temperature in Chinese cabbage
2006
E00357
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Details
Title
Identification of cell wall genes modified by a permissive high temperature in Chinese cabbage
Author
Yang, K.A.
Lim, C.J.
Hong, J.K.
Park, C.Y.
Cheong, Y.H.
Chung, W.S.
Lee, K.O.
Lee, S.Y.
Cho, M.J.
Lim, C.O.
Lim, C.J.
Hong, J.K.
Park, C.Y.
Cheong, Y.H.
Chung, W.S.
Lee, K.O.
Lee, S.Y.
Cho, M.J.
Lim, C.O.
Publication Date
2006
Call Number
E00357
Summary
If plants are pre-exposed to moderate heat stress, they can acquire enhanced tolerance to otherwise lethal high temperatures. To elucidate gene regulatory events involved in the acquisition of thermotolerance, we here conducted a comprehensive transcriptomic analysis. Chinese cabbage microarrays (Brassica rapa EST 6.4 K) were used to compare gene expression of 7-day old seedlings exposed to permissive high temperatures over a time course (0, 0.25, 1, 3, and 12 h at 37 8C). Expression profiling showed that heat treatment triggered significant accumulation of heat shock proteins over time and that some cell wall-modificatory (CWM) genes were up-regulated at the later time points. This up-regulation ofCWMgenes was verified by reverse-transcription (RT)-PCR and histochemical analysis also provided evidence that cell wall thickness is increased by permissive heat treatment. These observations imply that the activation of CWM-related genes by permissive high temperature stress is an important response for the acquisition of thermotolerance.
Journal Citation
v.171(1):175-182, PLANT SCIENCE
Contact Information
harvest@worldveg.org
Record Appears in
Research > Published Articles