Phytophthora infestans Quiz
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Questions and Answers

What type of organism is Phytophthora infestans?

  • Primary decomposer
  • Strict pathogen only
  • Facultative saprophyte (correct)
  • Obligate saprophyte only

    • Which of the following is true regarding conidia?

  • They germinate only through stomata.
  • They can germinate both directly and indirectly. (correct)
  • They only reproduce in the absence of moisture.
  • They can only develop directly into zoospores.

    • During the vegetative cycle, where do conidiophores emerge from?

  • From mature shoots
  • Directly from the tubers
  • Through the stomata (correct)
  • From root structures

    • What structure helps in the mating process of Phytophthora infestans?

    <p>Compatibility factor</p> Signup and view all the answers

    What is the characteristic feature of the antheridium in Phytophthora infestans?

    <p>It is collar-like and located at the base of the oogonium.</p> Signup and view all the answers

    What controls the sexual cycle mating in this organism?

    <p>Compatibility factor</p> Signup and view all the answers

    Which of the following statements about the organism's reproduction is true?

    <p>It may be heterothallic or facultative homothallic.</p> Signup and view all the answers

    Where is the antheridium located in relation to the oogonium?

    <p>At the base of the oogonium</p> Signup and view all the answers

    What is the shape description of the antheridium?

    <p>Collar-like</p> Signup and view all the answers

    How does the oogonium interact with the antheridium?

    <p>It pierces the antheridium and grows through it.</p> Signup and view all the answers

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