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Plant Responses to the Environment

Plant Responses to the Environment. Plants respond to many environmental stimuli. Plants respond to the direction of light. CB 39.0. Spectrum of light energy. CB 10.6. Photosynthesis: Plants can make sugar using energy from the sun, water from the ground, and CO 2 from the air. CB 10.5.

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Plant Responses to the Environment

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  1. Plant Responses to the Environment

  2. Plants respond to many environmental stimuli

  3. Plants respond to the direction of light CB 39.0

  4. Spectrum of light energy CB 10.6

  5. Photosynthesis: Plants can make sugar using energy from the sun, water from the ground, and CO2 from the air. CB 10.5

  6. Action spectrum of photosynthesis CB 10.9

  7. Seedling germination may depend on light CB 39.18

  8. Light quantity and quality in different environments

  9. Seedling germination may depend on light CB 39.18

  10. Phytochrome: a reversible receptor CB 39.20

  11. Shade Avoidance direct light shade

  12. Light quality is different in shade…more far-red direct light shade

  13. Why is phytochrome reversible?

  14. Light quality is different in shade…more far-red direct light shade

  15. Plants respond to many environmental stimuli

  16. Plants respond to touch CB 39.26

  17. Plants respond to touch touched not touched CB 39.26

  18. Another touch response CB 39.27

  19. Bad touch: Herbivory

  20. Bad touch: Herbivory sytemin

  21. Bad touch: Herbivory Jasmonic acid systemin

  22. Bad touch: Herbivory Protease Inhibitors Protease Inhibitors Protease Inhibitors Jasmonic acid Protease Inhibitors systemin Protease Inhibitors Protease Inhibitors

  23. Bad touch: Herbivory Protease Inhibitors Protease Inhibitors Protease Inhibitors Jasmonic acid Protease Inhibitors systemin Protease Inhibitors Protease Inhibitors I’ve got indigestion!

  24. Insect saliva can let plants know which insect is attacking

  25. Plants release several volatile chemicals to signal other organisms CB 39.29

  26. Plants release several volatile chemicals to signal other organisms Plant biology: Night moves of pregnant moths Clarence A. Ryan (29 March 2001) Nature 410, 530-531

  27. Moth type and time Plants release different volatiles depending on who and when they are being eaten. De Moraes C. M., Mescher M. C., Tumlinson J. H. Nature 410, 577-580 (2001)

  28. Plants release several volatile chemicals to signal other organisms Plant biology: Night moves of pregnant moths Clarence A. Ryan (29 March 2001) Nature 410, 530-531

  29. Marine Biology… http://youtube.com/watch?v=ucMLFO6TsFM

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