Contract grant sponsor: Natural Science Foundation of People Republic of China; Contract grant numbers: 41101522, 40901277.
Ultrastructural studies on the natural leaf senescence of Cinnamomum camphora
Article first published online: 4 JAN 2013
© Wiley Periodicals, Inc.
Volume 35, Issue 5, pages 336–343, September-October 2013
How to Cite
Cao, J., Song, Y., Wu, H., Qin, L., Hu, L. and Hao, R. (2013), Ultrastructural studies on the natural leaf senescence of Cinnamomum camphora. Scanning, 35: 336–343. doi: 10.1002/sca.21065
- Issue published online: 15 OCT 2013
- Article first published online: 4 JAN 2013
- Manuscript Accepted: 22 OCT 2012
- Manuscript Received: 10 SEP 2012
- Natural Science Foundation of People Republic of China. Grant Numbers: 41101522, 40901277
- leaf senescence;
- Cinnamomum camphora;
- chloroplast degradation;
- epicuticular wax;
The process of natural leaf senescence of Cinnamomum camphora (C. camphora)—a commercial tree in Asia, was investigated, focusing on changes in cellular ultrastructure, epicuticular wax, and stoma. The changes to mesophyll cells in a senescing leaf predominantly include degradation of the following cellular components: cytoplasm, the central vacuole, small vacuoles, and vesicles with a diameter smaller than 400 nm, which are involved in the degradation of chloroplasts. The sequence of change in epicuticular wax during leaf senescence was different from those in herbaceous plants by atomic force microscope and scanning electron microscopic analysis. Comparing with maturation leaves, senescing leaves develop a wider aperture in their stoma, which would delay the leaf senescence of C. camphora. SCANNING 35:336-343, 2013. © 2013 Wiley Periodicals, Inc.