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Question

What are phloem proteins?


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Solution

Phloem proteins:

  1. Phloem protein is another name for P-protein.
  2. P-protein aggregates at the sieve plate when the sieve element is disrupted, preventing the passage of phloem exudates.
  3. The sap-conducting sieve components of phloem tissue in plants contain substantial levels of P-protein (phloem protein).
  4. Its capacity to form a gel serves as a puncture repair substance, producing a plug at any location of damage in the sieve element and preventing food materials from being translocated by the phloem from being lost.
  5. The P-protein is mostly found lining the interior wall of a fully functional sieve element.

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