BICD120:Dr.Crawford Week 6
T A'.ZaraTabi(
[email protected]) AIM:ztabi06OH:ByemailAppt,
tothe ofcellsinresponse made by1group andreleased molecule signals Phgohormones-Small Introducinq... produce (growth, etc,) group movement, cells a response of to another received by meant to be ) environment requlator conditions){rowth hormonre {atphvsioloqical
Structure
Represses
Stimulates
Common Locations .Young Leaves . Embryos
. Phototropism; bud CellElongation . CellDivision "apical growthdominance" . Development: -Root lnitiation culture &shoot tissue (adventitious roots) cuttings tissue formation - Vascular
Derivative . Inplants, canbe fromtrporindole derived
(awayfromlight) (towards light)ornegative canbepositive - Phototropism: . Auxinis produced andistransported inthe cellelongation topromote . Bending ofauxin delivery dueto towards a lightsource ononesideis morerapid - Elongation
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transport - Auxin . Usesactive (apical) (ATP) fromshoot toroot(basal) tomoveauxin hansport . Transport proteins downwards tokeepflowmoving areneeded Structure
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Growth andCellDivision Hormone-Promotes Represses Stimulates Common Locations . CellDivision . RootTips . Seeds Differentiation(plantaging/ripening/death) Growth O
. Adenine Derivative inthe Produced Transport: - Cytokinin
andissentuptotheshoots
andCellDivision Growth Promotes Hormone Stimulates (Bolting) growth offlowers - Production . CellDivision & ExPansion Aletnfie -GAinseedgermination
. TheplantembrYo waitsuntilthe GA temp)beforeproducing ire met(light,moisture, - lnduces bythe production of - Induces
-tronrnt - 1ipld: - (vbs tnbvt4o
canbebroken carbs) ffiteins, for the metabolites plant! intousable down
endawerm plants
,0[ ) No areaffected andbolting Stemelongation -GAMutants. Howtoobtainthesetypesofmutants? ) Can'tmakeGAProPerlY mutant GA ) Can'tdetecUPerceive mutant . Howtodistinguish btwthetwo?)
SeedGermination Prevents hormone Represses Location Qtimrletaq Common Hesponses. GAresponses Stress Growth - Embryo . Closing . Seeds of ofHydrolases Release drought during . ColdHardening of - Production lipids - sYnthesize Proteins
Structure
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. Fruits . Germinating seeds
I Stimulates . Fruit . Senescence . "
seeds germinating . Disease Resistance . Derived from methionene
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with fordealing seed'smechanism - TripleResponse-Young . Three features:
towards soil'ssurface
ofthehypocotyls
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. Response of triggered bypresence in thelabtolookformutants - Canbereoroduced . TheETR1 foranETRIProtein Gene) Codes witha ofprotein Region domain- Protein Protein: - Structure of ETR1 F
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. ETR1partof mechanism inbacteria similarto system (i.e.ethylene) byan 1)Binding ofsignal Steps: group from_ ofthe ofa 2)Transfer domain totheAspofthe domain istriggered 3)Response
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