单词 | macrosporogenesis |
释义 | macrosporogenesis [¦mak·rō¦spȯr·ō`jen·ǝ·sǝs] BOTANY In angiosperms, the formation of macrospores and the production of the embryo sac from one or occasionally several cells of the subepidermal cell layer within the ovule of a closed ovary. Also known as megasporogenesis. |
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