(Q101104951)

English

Microsporogenesis and the Development of Microgametophyte of Ammopiptanthus nanus

scholarly article in Journal of Tropical and Subtropical Botany, vol. 13 no. 4, 2005

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矮沙冬青小孢子发生和雄配子体发育的观察 (Chinese)
Microsporogenesis and the Development of Microgametophyte of Ammopiptanthus nanus (English)
对矮沙冬青(Ammopiptanthus nanus)小孢子发生及雄配子体发育过程进行了观察,结果表明:花药具4个花粉囊,花药壁发育为基本型,由表皮、药室内壁、中层(2-3层)和绒毡层组成,绒毡层为腺质型.小孢子母细胞减数分裂后胞质分裂为同时型,四分体为四面体型排列,成熟的花粉粒为二细胞型.在矮沙冬青小孢子发生及雄配子体发育过程中没有发现异常现象,认为矮沙冬青濒危不存在雄性生殖结构与发育过程异常的内在因素.. (Chinese)
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The anther of an endangered species, A mmopiptanthus nanus (M. Pop.) Cheng f., is tetrasporangiate. (English)
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