1 / 26

Bonus #2 is due F 3/21

Bonus #2 is due F 3/21. Circadian Rhythms: daily patterns set by light (northern flying squirrel). CB 48.25. Action spectrum of photosynthesis. CB 10.9. Seedling germination may depend on light. CB 39.18. Phytochrome: a reversible receptor. CB 39.20.

samara
Download Presentation

Bonus #2 is due F 3/21

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Bonus #2 is due F 3/21

  2. Circadian Rhythms: daily patterns set by light (northern flying squirrel) CB 48.25

  3. Action spectrum of photosynthesis CB 10.9

  4. Seedling germination may depend on light CB 39.18

  5. Phytochrome: a reversible receptor CB 39.20

  6. http://www.mcdb.ucla.edu/Research/Tobin/research.html

  7. Phytochrome sets the circadian clock http://www.mcdb.ucla.edu/Research/Tobin/research.html http://plantsinmotion.bio.indiana.edu/plantmotion/movements/leafmovements/clocks.html (oxalis) http://plantsinmotion.bio.indiana.edu/plantmotion/movements/tropism/tropisms.html (sunflower tracking)

  8. The molecular identity of the circadian clock is unknown http://www.ou.edu/wanglab/Circadian.html

  9. CCA1 is a transcription factor that regulates some photosynthetic genes. 25 28 31 34 37 40 43 46 49 52 55 57 http://www.mcdb.ucla.edu/Research/Tobin/research.html

  10. Overexpression of CCA1 in transgenic Arabidopsis plants abolished the circadian rhythms of several genes with dramatically different phases. http://www.mcdb.ucla.edu/Research/Tobin/research.html

  11. Plants were created that lack a functional CCA1 gene http://www.mcdb.ucla.edu/Research/Tobin/research.html

  12. With no CCA1 protein, phytochrome induction of Lhcb RNA is reduced to 60% of the normal level. http://www.mcdb.ucla.edu/Research/Tobin/research.html

  13. http://www.mcdb.ucla.edu/Research/Tobin/research.html

  14. http://www.mcdb.ucla.edu/Research/Tobin/research.html

  15. Plants overexpressing CCA1 had delayed flowering. Furthermore, leaf movement rhythms were abolished

  16. Hey, want toswap somepollen?

  17. I don’t haveany flowers.

  18. I guess I willhave to findanother plant.

  19. I hate whenthat happens. You give reallygood pollen.

  20. Plants use day length to synchronize flowering CB 39.22

  21. The critical period is actually night length CB 39.22

  22. Phytochrome regulates flowering time CB 39.23

  23. Hormonal regulation of flowering time Exposed to flower inducing photoperiod NOT exposed to flower inducing photoperiod CB 39.24

  24. CB 36.13 Water moves from the ground through roots into the shoot and out stomata in the leaves.

  25. What happened to this root? CB 39.28

  26. Bonus #2 is due F 3/21 • For W Fraken-plants (CB concept 38.4)

More Related