Plant and Cell Physiology, 1997, Vol. 38, No. 3 375-378
© 1997
Short Communication |
Changes in Levels of mRNAs for Cell Wall-Related Enzymes in Growing Cotton Fiber Cells1
2 Wood Research Institute, Kyoto University Gokasho, Uji, Kyoto, 611 Japan
3 Tokyo Research Center, Nisshinbo Industries, Inc. Adachi-ku, Tokyo, 123 Japan
4 Faculty of Agriculture, Tottori University Koyama-cho, Tottori, 680 Japan
5 To whom all correspondence should be addressed: e-mail, taka{at}kuwri.kyoto-u.ac.jp
mRNAs for cell wall-related enzymes in developing cotton fiber cells were measured by reverse transcription-PCR analysis. Both endo-l,4-ß-glucanase and expansin mRNA levels were high during cell elongation but decreased when cell elongation ceased, and xyloglucan decreased. The endo-l,3-ß-glucanase mRNA level was very low in the elongating cells but increased gradually at the onset of secondary wall synthesis, accompanying the massive deposition of cellulose. Endoxyloglucan transferase and sucrose synthase mRNA levels were constant during all stages of growth.
1This work was supported by a Grant-in-Aid for Scientific Research on Priority Areas (No. 05276103) from the Ministry of Education, Science and Culture, Japan
(Received October 21, 1996; Accepted January 10, 1997)
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