B3: Effect of TMV (and rose black spot) on plants Flashcards
1
Q
what are the symptoms of TMV
A
a mosaic patterend discolouration on leaves
2
Q
what process does it reduce
A
photosynthesis
3
Q
how does it reduce photosynthesis?
STEP one
A
ther are fewer chloroplasts, and chlorophyll is destroyed
4
Q
step 2 (after chlorophyll)
A
Less light is absorbed
5
Q
step 3 (after light)
A
thus there is less photosynthesis
6
Q
step four (after photosynthesis)
A
there is less glucose for respiration
7
Q
step 5 (after respiration)
A
there is less energy releasesd to convert glucose into protien (amino acids)
8
Q
final result
A
stunted growth
