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单词 phloem necrosis
释义

WordReference Random House Unabridged Dictionary of American English © 2024
phloem necro′sis, [Plant Pathol.]
  1. Plant Diseasesa disease of the American elm caused by a mycoplasmalike organism, characterized by yellowing and necrosis of the foliage and yellowish-brown discoloration of the phloem.
  • 1920–25

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