Flashcards in Ethylene and Abscissic acid Deck (16):
1
ethylene production increases during leaf --, flower senescence and fruit ripening
abscission
2
ethylene can be induced by wounding or --
stresses
3
fruit ripening includes softening of cell walls, hydrolysis of starch, sugar --, and disappearance of organic acids
accumulation
4
fruits that ripen in response to ethylene exhibit a rise in respiration before ripening called
climacteric
5
bananas, avocados, tomatos
climacteric
6
citrus and grapes
nonclimacteric
7
treating climacteric fruits with ethylene induces fruit to produce additional ethylene
autocatalytic
8
low O2, -- temp, and vacuum slow fruit ripening
low
9
ethylene induces -- flooding response in which leaves curve downward (upper side of petiole grow faster)
epinasty
10
ethylene changes directionality of plant cell expansion by causing the -- in cell wall to change orientation
cellulose microfibrils
11
hormone associated with dormancy and stress
ABA
12
ABA is -- in vascular plants
ubiquitous
13
ABA is a -- carbon compound with one ring
15
14
ABA is transported in the xylem and phloem but much more abundant in --
phloem sap
15
ABA content of seeds is -- in early embryogenesis
low
16