Plant Growth Regulators Flashcards Preview

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Flashcards in Plant Growth Regulators Deck (36):
1

Regulates apical dominance (suppresses lateral buds)

auxin

2

Regulates floral bud development and phyllotaxy

auxin

3

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

auxin

4

promotes fruit dev

auxin

5

induces vascular differentiation

auxin

6

delays onset of leaf abscission

auxin

7

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

gibberellins

8

Regulate transition from juvenile to adult

gibberellins

9

Mediate floral initiation and influence sex determination

gibberellins

10

Pollen development and formation of pollen tube

gibberellins

11

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

gibberellins

12

seed development and germination

giberellins

13

Regulate cell division and expansion

cytokinins

14

Modify apical dominance, promote lateral bud growth

cytokinins

15

Induce bud formation in moss (from protonema)

cytokinins

16

Delay leaf senescence

cytokinins

17

Promote movement of nutrients into leaves

cytokinins

18

Promote chloroplast development

cytokinins

19

Break seed/bud dormancy

ethylene

20

increase rate of leaf senescence

ethylene

21

promote fruit ripening

ethylene

22

Promote abscission

ethylene

23

Hook formation in etiolated seedling

ethylene

24

leaf epinasty (due to flooding)

ethylene

25

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

ethylene

26

Induce formation of roots and root hairs

ethylene

27

induce flowering in pineapples

ethylene

28

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

ABA

29

Promote seed storage reserve accumulation and seed desiccation tolerance

ABA

30

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

late-embryogenesis-abundant proteins

31

Promote bud and embryo dormancy

ABA

32

Regulate seed dormancy by promoting desiccation tolerance

ABA

33

Promote leaf senescence (stimulate ethylene production)

ABA

34

During water stress, ABA

Inhibit shoot and promote root growth
Induce stomatal closure

35

Balance of ABA and GA determines --

germination

36

simulating process as computer algorithms

in silico experiments