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GATE 2024 BT – Question 47

Plant, Animal and Microbial Biotechnology · Plants: Totipotency, organogenesis, regeneration, growth regulators, tissue and cell suspension culture, secondary metabolites · 2 marks · Multiple select

Which of the following is/are considered as biotic elicitor(s) in plant cell culture?

  1. Cellulase
  2. Chitin
  3. Chitosan
  4. Mercuric chloride

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Show answer and explanation

Correct answer: (A) Cellulase; (B) Chitin; (C) Chitosan

Explanation

Biotic elicitors come from living organisms: fungal cell wall components (chitin, chitosan) and enzymes such as cellulase. Mercuric chloride is a heavy metal and an abiotic elicitor.