Those fungi which can grow only on their living host and cannot be grown on available defined growth culture medium e.g. various mildews and most rust species are called_____________?
Correct answer: B. Obligate parasitic fungi
- A. Parasitic fungi
- B. Obligate parasitic fungi
- C. Facultative parasitic fungi
- D. All of these
Explanation
Obligate parasitic fungi must obtain nutrients from a living host and cannot normally complete growth on an artificial defined culture medium. Facultative parasites can also grow independently as saprotrophs, so that term does not fit fungi that require a living host.
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