plant growth factors
DESCRIPTION
STUDYTRANSCRIPT
-
(N4.1) PGR = Pretty Girl Relationships?Regulation & Control
-
:: Objectives ::In this topic, well learn:(a)What is homeostasis(b)Detoxing the body the excretory system(c) (d)How inner plumbing *really* works(e) (f)Zap up to life the nervous system(g) (i)Are we that different from electrical wires?(j) (k)Do you feel the chemistry between us?(l) (m)Got spider senses? the hormone system(n)Controlling the *whee* sugar high!! (o) (r)Plants have feelings, too!!N4
-
:: Objectives ::Todays session, well learn:N4 Plant growth regulators(o) (r)Plants have feelings, too!! What are plant growth regulators Structure & function of i) Auxin(IAA) ii) Giberillin (GA) iii) Abscisic acid (ABA) iv) Others (cytokinin & ethene)
-
:: um, Pretty Girl Relationships :: Plants have communication systems, tooPlant nervous systemPlant hormone system
-
:: um, Pretty Girl Relationships :: Plants have communication systems, tooPlant nervous systemPlant hormone system
What are plant growth regulators (PGRs)? aka plant _________ secreted by specialized cells eg. ____________ move to other cells using _________ & _______________hormonesparenchymadiffusionactive transportaka plant growth regulators
-
:: oh, Plant Growth Regulators ::5 main PGRs Auxin / indoleacetic acid (IAA) ~ growth of ______ & ______ Cytokinin ~ growth of ______ Gibberillins / gibberillic acid (GA) ~ growth of ______ Ethene ~ growth of ______ Abscisic acid (ABA) ~ _________ of growthrootsrootsshootsfruitsinhibitionshoots
-
:: oh, Plant Growth Regulators ::5 main PGRs Auxin / indoleacetic acid (IAA) ~ growth of ______ & ______ Cytokinin ~ growth of ______ Gibberillins / gibberillic acid (GA) ~ growth of ______ Ethene ~ growth of ______ Abscisic acid (ABA) ~ _________ of growthrootsrootsshootsfruitsinhibitionshoots
-
:: auxin (IAA) ::Auxin / indoleacetic acid (IAA) Secretion ~ at _________ ie. _______ & _______ Direction of transport (_____________) ~ ______ from __________ Role(s) inPlant~ growth of ______ & ______ ~ apical ____________ ie. if at high [] at apical bud inhibits lateral buds ~ inhibits ________________(ABA)meristemrootsshootsactive transportawaymeristemrootsshootsdominanceabscisic acid
-
:: gibberellins (GA)::Gibberellins / gibberellic acid (GA) Secretion ~ in ___________ of young plants Direction of transport (_____________) Role(s) inPlant~ growth of ______ at _________ ~ growth of ______ at _________Seed~ breakdown of ____________ ie. if at high [] in seed breakdown aleurone layer synthesize amylase breakdown starch glucosechloroplastdiffusionsteminternodeleaflaminaendosperm
- :: abscisic acid (ABA) ::Abscisic acid (ABA) aka ______ PGR Secretion ~ in ___________ of mature plants Direction of transport (_____________) Role(s) inPlant~ closure of _________ ie. if at high [] in leaf close H+ & K+in channels outside s >> GC s outside
-
:: In concerto!! ::In spring, a seed sprouts from the ground ____~ breakdown of endosperm____~ growth of roots & shootsGAIAA
-
:: In concerto!! ::In spring, a seed sprouts from the ground ____~ breakdown of endosperm____~ growth of roots & shootsIn summer, the young plant begins to grow tall____ ~ growth of roots & shoots____ ~ growth of stem & leafGAIAAIAAGA
-
:: In concerto!! ::In spring, a seed sprouts from the ground ____~ breakdown of endosperm____~ growth of roots & shootsIn summer, the young plant begins to grow tall____ ~ growth of roots & shoots____ ~ growth of stem & leafIn autumn, the mature plant begins to fade____ ~ closure of stomataChlorophylls cease being produced____ ~ leaf abscissionGAIAAIAAGAABAABA
-
:: Recap ::Plant growth regulators (PGRs) aka plant hormonesAuxin / indoleacetic acid (IAA) ~ growth of roots & shootsGibberellins / gibberellin acid (GA) ~ growth of stem & leaf ~ breakdown of endospermAbscisic acid (ABA) ~ closure of stomata ~ leaf abscission
-
:: Homework :: Reading n/a (yay!) Revisionn/a (yay!):: Reference(s) :: Jones, Fosbery, Taylor & Gregory pg. 289-292 Toole & Toole pg. 132-135 Clegg & MacKean pg. 422-433 (a lot of details; useful for additional information)
***************