Megaspore-mother-cell



noun, Botany.
1.
a diploid cell in plants that undergoes meiosis to create four haploid megaspores.

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  • Megaspores

    [meg-uh-spawr, -spohr] /ˈmɛg əˌspɔr, -ˌspoʊr/ noun, Botany. 1. the larger of the two kinds of characteristically produced by seed plants and a few fern allies, developing into a female gametophyte. Compare . 2. the embryo sac of a flowering plant. /ˈmɛɡəˌspɔː/ noun 1. Also called macrospore. the larger of the two types of spore produced […]

  • Megasporocyte

    noun, Botany. 1. a diploid cell in plants that undergoes meiosis to create four haploid megaspores. megasporocyte (měg’ə-spôr’ə-sīt’) A diploid cell that undergoes meiosis to produce megaspores as part of megasporogenesis. Also called megaspore mother cell.



  • Megasporogenesis

    [meg-uh-spawr-uh-jen-uh-sis, -spohr-] /ˌmɛg əˌspɔr əˈdʒɛn ə sɪs, -ˈspoʊr-/ noun, Botany. 1. the formation and development of megaspores. megasporogenesis (měg’ə-spôr’ə-jěn’ĭ-sĭs) The formation of megaspores inside the ovules of seed plants. A diploid cell in the ovule, called a megasporocyte or a megaspore mother cell, undergoes meiosis and gives rise to four haploid megaspores. In most plants, […]

  • Megasporophyll

    [meg-uh-spawr-uh-fil, -spohr-] /ˌmɛg əˈspɔr ə fɪl, -ˈspoʊr-/ noun, Botany. 1. a producing megasporangia only. /ˌmɛɡəˈspɔːrəfɪl/ noun 1. a leaf on which the megaspores are formed: corresponds to the carpel of a flowering plant Compare microsporophyll megasporophyll (měg’ə-spôr’ə-fĭl’) A leaflike structure that bears megasporangia.



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