A) nutrition uptaking
B) food manufacturing
C) disease resistance
D) disease prevention
Correct Answer: A
Solution :
Mycorrhiza is an mutualistic association between fungi and root of higher plants. Ectotrophic mycorrhizae are very common in nature on pines, oaks, hickories and beech and endotrophic ones occur in red maple and are common in roots and other tissues of many orchids and members of Ericaceae. Mycorrhiza helps in nutrition uptaking particularly for phosphorus. Green plants have the ability to synthesize the organic food in presence of light through photosynthesis. Some host genotypes possess the ability to prevent a pathogen strain from producing disease. Such host lines are called resistant, and this ability is called disease resistance.
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