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EEB 162 > Plant Growth Regulators > Flashcards

Plant Growth Regulators Flashcards

1
Q

Regulates apical dominance (suppresses lateral buds)

A

auxin

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2
Q

Regulates floral bud development and phyllotaxy

A

auxin

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3
Q

Promote formation of lateral and adventitious roots and inhibits elongation primary root

A

auxin

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4
Q

promotes fruit dev

A

auxin

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5
Q

induces vascular differentiation

A

auxin

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6
Q

delays onset of leaf abscission

A

auxin

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7
Q

Stimulate cell elongation and cell division; stem growth and root growth (increase extensibility and lower yield threshold)

A

gibberellins

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8
Q

Regulate transition from juvenile to adult

A

gibberellins

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9
Q

Mediate floral initiation and influence sex determination

A

gibberellins

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10
Q

Pollen development and formation of pollen tube

A

gibberellins

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11
Q

Fruit set (fruit growth following pollination) and fruit growth (even without seeds = parthenocarpy)

A

gibberellins

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12
Q

seed development and germination

A

giberellins

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13
Q

Regulate cell division and expansion

A

cytokinins

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14
Q

Modify apical dominance, promote lateral bud growth

A

cytokinins

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15
Q

Induce bud formation in moss (from protonema)

A

cytokinins

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16
Q

Delay leaf senescence

A

cytokinins

17
Q

Promote movement of nutrients into leaves

A

cytokinins

18
Q

Promote chloroplast development

A

cytokinins

19
Q

Break seed/bud dormancy

A

ethylene

20
Q

increase rate of leaf senescence

A

ethylene

21
Q

promote fruit ripening

A

ethylene

22
Q

Promote abscission

A

ethylene

23
Q

Hook formation in etiolated seedling

A

ethylene

24
Q

leaf epinasty (due to flooding)

A

ethylene

25
Q

Triple response (thick stem, shorter stem, horizontal root growth)

A

ethylene

26
Q

Induce formation of roots and root hairs

A

ethylene

27
Q

induce flowering in pineapples

A

ethylene

28
Q

Inhibits precocious germination and vivipary (sprouting of seeds on the plant)

A

ABA

29
Q

Promote seed storage reserve accumulation and seed desiccation tolerance

A

ABA

30
Q

As maturing seeds lose water, – (LEAs) accumulate, induced by ABA

A

late-embryogenesis-abundant proteins

31
Q

Promote bud and embryo dormancy

A

ABA

32
Q

Regulate seed dormancy by promoting desiccation tolerance

A

ABA

33
Q

Promote leaf senescence (stimulate ethylene production)

A

ABA

34
Q

During water stress, ABA

A

Inhibit shoot and promote root growth

Induce stomatal closure

35
Q

Balance of ABA and GA determines –

A

germination

36
Q

simulating process as computer algorithms

A

in silico experiments

EEB 162 (17 decks)

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