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Flashcards in Cytokinins Deck (21):
1

cytokinins control -- and central in plant growth and dev

cell division

2

plant cell that retain its nucleus at -- is capable of dividing

maturity

3

A. tumefaciens can invade wounds and cause plant tumors, --, via cytokinin response

crown galls

4

tissue removed from crown galls into culture media will grow as a mass of disorganized, relatively undifferentiated cells called --

callus tissue

5

isolated from autoclaved herring sperm DNA that promoted cell division -- (not naturally occurring)

kinetin

6

extracts from maize endosperm that promoted cell division

zeatin

7

causes lateral buds to grow in concert

witches broom

8

A. tumefasicens contain -- which is incorporated into the nuclear DNA of the host plant cell and which expresses a gene that drives cytokinin production

Ti plasmid

9

cytokinins are synthesized in --

root apical meristem

10

cytokinins move through -- into the shoot

xylem

11

zeatin increases the rate of --

cytokinesis

12

cytokinin -- root growth

suppresses

13

over expression of cytokinin oxidase leads to reduction in cell proliferation in the apical meristem and -- of root growth

enhancement

14

cytokinins also promote -- of cotyledons and leaves

expansion

15

cytokinins also increase the extensibility of cell walls but do not rely on -- like auxin

proton extrusion

16

cytokinin stimulate bud formation from the -- in mosses (filament of cells arising from the germination of moss spores)

protonema

17

detached leaves lose chlorophyll, RNA, lipids, and proteins

senescence

18

-- leaves produce cytokinin

young

19

mature leaves depend on -- cytokinins to postpone their senescence

root-derived

20

cytokinin influence the movement of nutrients into leaves

cytokinin-induced nutrient mobilization

21

in etiolated seedlings, chloroplasts don't mature but develop into

etioplasts