Interaction of cycloheximide and light on chlorophyll content and chloroplast ultrastructure inBrassica campestris
Cycloheximide retarded the loss of chlorophyll from detached komatsuna (Brassica campestris cv. Komatsuna) leaves during incubation in the dark but promoted its loss in light. Cycloheximide-induced chlorophyll bleaching in light was prevented by some active oxygen scavengers. Chloroplast envelopes of cycloheximide-treated leaves incubated in both the dark and light were destroyed within 48 h. The grana of cycloheximide-treated leaves incubated in light were dilated.
Key wordsBrassica campestris Chlorophyll bleaching Active oxygen Cycloheximide
Unable to display preview. Download preview PDF.
- Matsunaka, S. 1988. Paraquat, An active-oxygen producing herbicide. Protein, Nucleic acid and Enzyme33: 2790–2794.Google Scholar
- Pjon, C.J. 1981. Effects of cycloheximide and light on leaf senescence in maize and hydrangea. Plant Cell Physiol.22: 847–854.Google Scholar
- — 1982. Effects of metal chelators on leaf senescence in maize and hydrangea. Plant Cell Physiol.23: 1427–1433.Google Scholar
- Vanable, J.H. andR.A. Coggeshall 1965. A simplified lead citrate stain for use in electron microscopy. J. Cell Biol.25: 442–445.Google Scholar