Lecture 14: Plant Mineral Nutrient 5

Question 1

t/f: micronutrients have a narrower optimal range than macronutrients

Answer 1

t

Question 2

optimal range of nutrients

Answer 2

area between deficiency and luxury where plants operate the best

Question 3

most micronutrients are ______ in plants

Answer 3

immobile

Question 4

what form of iron is soluble

Answer 4

Fe(II) or FE2+
Ferrous ion

Question 5

what form of iron is insoluble

Answer 5

Fe(III) or Fe3+
Ferric ion

Question 6

Fe is largely _______ and ______

Answer 6

oxidized, insoluble

Question 7

what is the characteristic symptom of iron deficiency

Answer 7

interveinal chlorosis

Question 8

what is chelation

Answer 8

the formation of bonds between 2 or more separate binding sites within a ligand and a single central atom

Question 9

how does Fe become solubilization in soil

Answer 9

organic acid (citrate) binds to Fe

Question 10

rhizosphere

Answer 10

soil area around the plant root

Question 11

transporters used in Fe transport of dicots

Answer 11

AHA2, FRO2, IRT1

Question 12

what form of iron do dicots take into plant

Answer 12

Fe 2

Question 13

what form of iron does monocot take into plant

Answer 13

Fe 3

Question 14

transporters used in Fe transport of monocots

Answer 14

TOM1 and YS/YSL

Question 15

siderophores

Answer 15

small metal-binding molecule generated from bacteria

Question 16

phytosiderophores

Answer 16

generated from plants