38-pldevresponsoutl

38-pldevresponsoutl - 1 discovered as 2 made in 3 effects a...

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Biology 3 Lecture: Control of Plant Growth (Ch 38) © copyright 2011 Marta de Jesus I. Plant movements A. tropisms 1. phototropism 2. gravitropism 3. thigmotropism 4. heliotropism B. nastic movements 1. Mimosa /sensitive plant 2. Venus fly trap aquaporins (2003 Nobel in Chem) II. Plant hormones A. general signal transduction pathway (similar to animals) a. reception b. transduction c. induction {Note: Fig 38-3 & section “Plant hormones act by signal transduction” won’t be on exam except what I’ve said in lecture} B. auxin 1. early experiments Darwins’ work Frits Went explanation 2. occurs in 3. effects a.
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b. c. d. e. f. g. used in agriculture/horticulture to: 1) 2) 3) 4) 5) C. gibberellin 1. originally discovered 2. found in 3. effects a. b. c. d. e. f. g. D. cytokinin 1. originally discovered in 2. found in 3. effects a. b.
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c. d. e. f. g. h. E. ethylene
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Unformatted text preview: 1. discovered as 2. made in 3. effects a. b. c. d. e. F. abscisic acid 1. made in 2. effects a. b. c. G. brassinosteroids (BRs) 1. 2. made in 3. involved in H. “florigen” = flowering hormone one recent model (2011) http://www.spring8.or.jp/en/news_publications/press_release/2011/110801 I. there are other chemicals that affect growth; some probably are hormones III. Light-related responses A. photoperiodism 1. flowering a. short-day b. long-day c. intermediate-day plants d. day-neutral plants B. main sensor is phytochrome 1. P r 2. P fr 3. P fr 4. involved in a. b. c. 5. involves C. cryptochrome D. circadian rhythm phenomena E. other biological clocks IV. Defenses A. hypersensitive response B. systemic acquired resistance (SAR) C. jasmonic acid D. salicylic acid...
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38-pldevresponsoutl - 1 discovered as 2 made in 3 effects a...

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