Week Blanked

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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

-'!..J-= 'f..

.^. \ higncrourinlJ'ltrt#t,

(Auv') *ffir#u:fu]ffit N{asftrc'|onprion

transport - Auxin . Usesactive (apical) (ATP) fromshoot toroot(basal) tomoveauxin hansport . Transport proteins downwards tokeepflowmoving areneeded Structure

:Jil}} 6fiN!)

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

a

I nnalinnq

. Fruits . Germinating seeds

I Stimulates . Fruit . Senescence . "

seeds germinating . Disease Resistance . Derived from methionene

ttil ' l

with fordealing seed'smechanism - TripleResponse-Young . Three features:

towards soil'ssurface

ofthehypocotyls

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ofhypocotyls HookCurvature

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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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