Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

The Physiology of Circadian Rhythms in Plants

Alex A. R. Webb
The New Phytologist
Vol. 160, No. 2 (Nov., 2003), pp. 281-303
Published by: Wiley on behalf of the New Phytologist Trust
Stable URL: http://www.jstor.org/stable/1514280
Page Count: 23
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Physiology of Circadian Rhythms in Plants
Preview not available

Abstract

Circadian rhythms regulate many aspects of plant physiology including leaf, organ and stomatal movements, growth and signalling. The genetic identity of some of the components of the core circadian oscillator has recently become known. Similarly, the photoperception and phototransduction pathways that entrain the oscillator to the day and night cycle are being determined. Less clear are the pathways by which the circadian oscillator regulates cellular physiology. Circadian oscillations in cytosolic free calcium might act to transduce the temporal outputs of the circadian oscillator. This hypothesis requires rigorous testing using novel noninvasive technologies. Plants might gain advantage from the circadian clock by being able to predict changes in the environment and coordinate physiological processes, presumably increasing survival and hence, reproductive fitness. Technical advances coupled with cell-specific measurement techniques will allow the advantages of the circadian regulation of physiology to be quantified.

Page Thumbnails

  • Thumbnail: Page 
281
    281
  • Thumbnail: Page 
282
    282
  • Thumbnail: Page 
283
    283
  • Thumbnail: Page 
284
    284
  • Thumbnail: Page 
285
    285
  • Thumbnail: Page 
286
    286
  • Thumbnail: Page 
287
    287
  • Thumbnail: Page 
288
    288
  • Thumbnail: Page 
289
    289
  • Thumbnail: Page 
290
    290
  • Thumbnail: Page 
291
    291
  • Thumbnail: Page 
292
    292
  • Thumbnail: Page 
293
    293
  • Thumbnail: Page 
294
    294
  • Thumbnail: Page 
295
    295
  • Thumbnail: Page 
296
    296
  • Thumbnail: Page 
297
    297
  • Thumbnail: Page 
298
    298
  • Thumbnail: Page 
299
    299
  • Thumbnail: Page 
300
    300
  • Thumbnail: Page 
301
    301
  • Thumbnail: Page 
302
    302
  • Thumbnail: Page 
303
    303