Definitions for lab exam

For lab exam

Chlorosis

general yellowing of leaf tissue

chlorotic spots

spotted yellowing of leaf tissue

mottling

mosaic-patterned yellowing of leaf tissue

interveinal chlorosis

yellowing between but not on veins

white chlorosis

complete loss of color of leaf tissue/whitening

anthocyanin accumulation (purple/red)

reddening of leaf veins (visible on leaf underside)

yellow-green, deep blue green

other discoloration

epinasty

curling or twisting of leaves

necrosis (necrotic spots, interveinal necrosis)

death of plant tissue

wilting

loss of turgidity of leaf/stem

stunting

less growth in stem length than the control

adventitious root formation

production of roots along stem

mobile element

Symptoms that appear on older portions of the plant

immobile element

symptoms that appear in younger regions of plant

sepal

leaflike, most outer part, protects bud before it opens

petals

leaflike around reproductive organ, attracts pollinators

stamen

male reproductive part produces pollen grain

filament

male, slender stalk that holds anthers

anthers

male, pollen-producing organ

carpel

female reproductive part

stigma

female, sticky tip that gets pollen

style

female, slender stalk

ovary

female, enlarges part at base of carpel, becomes fruit

ovules

female, produced female gametophyte/seeds