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Summary

Summary Plant Hormones - Life Sciences (Biology)

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Summary from Life science study guide by E Russell including a great explanation of the function and effect of Auxins , Gibberellins and Abscisic acid in plants as well as the different types of tropisms.

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12th Grade








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Uploaded on
January 22, 2024
Number of pages
3
Written in
2023/2024
Type
Summary

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GIBBERELLINS
Responding to intipsotrootsastemsaswellasinseeds

the environment PROMOTES CELL
ELONGATION
plant
OFINTERNODESOFSTEMS
t very
grows quickly
ViaHormones STIMULATES
ROOTGROWTH

reactionResponsetropism OFFlowers
DEVELOPMENT

GERMINATIONofseeds
rafter
been
Hormonesorganicchemical
substance thatproducedinsmallamounts dormant

translocatedthroughplant
inonepartotplant are OFBUDSafterbeendormant
SPROUTING

TFRUITSKE



AUXINS
tipsofstemstroutshgrowingleavestfruits highauxin fruitsseeds
sprooviedinleavesistems

about
Bring growth implantstropisms
reaction functions oripenfruitstinouse fruitfulwhen
ripe
promote obringaboutdormaniyotseedsinhibit
germination
qpupggoen.ge Loormancyotaplialbuos
CELL
DIVISIONMitosis

CELL
ELONGATION oleafabiassionwhenplantisstressedovetocold

responsible forApicalDominance lowlauxin
into then
Auxinsinapicalbuosotplants's produced droughtwater
shortage



y
translocateddownstem 4Absasicaciocarriedtoleavesicaviestomatatocio

Highlauxingattopotsteminhibit Gredvieswateriossbytranspiration

lateral
brostrom
growing i FUNCTIONS
lowerdownstemlowauxin 1 Promoteroot
d evelopment

movelateralbuds stimulatecelisofstemtogrow highauxin




i
shape
pyramid roots
adventitious shoots

Gardernswhowantthickhedges use
Horticulturists powder with
removeapicalbuostromplants syntheticauxintoencouragerootgrowth

OLEOFAUXINS INTROPISM 2 Inhibitleatfallabscission
www.mantgrowthhormonesaawmspwwwmanm growing
ooucedintipsofstemstrootshihoots leavesAsleavesagewhen
e nvironmental

wellknown indoleaceticacid Ian
most temporopovetoautumniwinter lessauxin

Auxinstimulatecurvatureofplant
organs produced
increasingauxinconientrations
ropismsgrowthmovementsofplant rabscissionlayeriformsatbaseof

petiole corkianer waterproof


Thinning
sponsiblefordiffeffectsindiffpautsotplants
leatdiesstalls

fruits
when ripe ayyy
wma
other
promote


if
auxininstemspromotegrowth promote genopment
y p
lelongation lowauxininhibitsgrowth withsynthetic
Latarmerssprayfruittrees


µ
hi
Lauxintinrootspromotes
growth
elongation highauxinrootsinhibitgrowth d ropping
premature

produceseedlesstruitiatruitwill
o
formtromanunpollinated
flower Timeindaystromendotwintertostartotspring
Disadvantagelimit
reproduction
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