STUDIES OF THE DEVELOPMENT OF ZOSTERA MARINA L.: I. THE EMBRYO AND SEED
STUDIES OF THE DEVELOPMENT OF ZOSTERA MARINA L.: I. THE EMBRYO AND SEED
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大叶藻发育的研究：一、胚胎和种子
DOI：
10.1139/b57-042
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发表时间：
1957
期刊：
影响因子：
--
通讯作者：
A. Taylor
中科院分区：
文献类型：
--
作者：
A. Taylor
描述了小带草从原胚到成熟种子的发育过程。单子叶和茎尖从近球形的幼胚向外侧发育。不产生胚根；下胚轴发育为膨大的基部（原始胚团）和子叶和胚珠基部细胞分裂形成的细长轴部。子叶的生长部分是靠其顶端的细胞分裂。轴向下胚轴的弯曲主要是由细胞伸长不等引起的，而子叶的弯曲主要是由细胞数量增加不等引起的。单个原形成层链从下胚轴基部的柄端通过轴向部分分化成子叶和胚珠。羽状茎顶端在多层体上形成单层被膜。在休眠开始之前，它会产生三片叶片原基，其中一片有组织的空气空间。中脉原形成层从轴链向顶端分化为每片叶原基。
Development of Zostera marina L. is described from proembryo to mature seed. The single cotyledon and the stem apex develop laterally from the nearly spherical young embryo. No radicle is produced; the hypocotyl develops into a swollen basal part (the original embryonic mass) and an elongated axial part formed by cell divisions at the base of the cotyledon and plumule. The cotyledon grows in part by cell divisions at its apex. Curvature develops in the axial hypocotyl mainly by unequal elongation of cells, whereas curvature of the cotyledon is mainly by unequal increase in cell numbers. A single procambial strand differentiates from the suspensor end of the basal part of the hypocotyl through the axial part into the cotyledon and plumule. The plumular stem apex develops a single-layered tunica over a several-layered corpus. It produces three leaf primordia, one with air-spaces organized, before dormancy sets in. Mid-vein procambium differentiates acropetally from the axial strand into each leaf primordium...