内珠被
- 网络inner integument
![内珠被](../cache/1196207.jpg)
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开花授粉、授精后,珠被发育为种皮时,内珠被逐渐被吸收,大约在开花后2P天左右(5月上旬,子叶开始分化时),内珠被绝大部份被吸收。
The major part of the inner integument is absorbed after about 21 days of the blooming date ( the cotyledon begin to differentiate within the first ten days of May ) .
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而内珠被的外表皮细胞石质化,内珠被内的薄壁细胞迅速解体消失且仍残留有少量的薄壁细胞。
The exterior epidermis cells of inner integument are lithoid , and parenchyma cells of inner integument degenerate rapidly but remain few parenchyma cells .
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珠孔由内珠被和腹侧外珠被构成。
The micropyle is formed with inner integuments and partial outer integument .
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此时,外珠被发育形成外种皮,褐色肉质;内珠被形成内种皮,石质化、坚硬。
At this moment , the exterior integument develops the testa which is brown and fleshy ; the inner integument develops the endothelium which is hard . 2 .
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并发现供试种子半透层是由内珠被外侧细胞细胞壁加厚形成的,确定了各种禾草半透层形成的时期。
It was found that the semi-permeable layer was formed by the outer periclinal wall of the inner integument thicken and identified the formation time of this layer for all the seeds .
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雌蕊3心皮3室,子房下位,中轴胎座,每室2倒生胚珠,厚珠心,双珠被,内珠被独自形成珠孔。
Its pistil consists of three carpels , the inferior ovary has three locules and each locule has two ovules which are anatropous on axile placenta . The ovule is bitegminous and crassinucellate .
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雌蕊由5心皮组成,柱头、花柱分离,子房合生,1室,基生胎座,胚珠1个,拳卷型,双珠被,厚珠心,珠孔由内珠被形成。
The pistil was composed of five carpels , stigmas and styli separated , the ovary was coadnate , basal placenta , it had only one circinotropous ovule , the ovule was crassinucellate and had two layers of integument , the micropyle was formed by the inner integument .