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《Acta Botanica Boreali-Occidentalia Sinica》 1991-01
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Gao Delu Zhang Hemin Su Xiuzhen (Institute of Botany,Academia Sinica,Beijing 100044)  
This paper describes in detail the substructure of Sesbania conobina seeds by scanning electron microscopy.The seed consists of the seed coat,which contains leathery substance endosperm and cotyledon.The seed coat accounting for 20% of the seed weight is composed of epi- dermis formed from palisade cells and endosexine from sphericoly scle- renchyma cells.The endosperm below the seed coat takes up 30—33% of the weight of seed.The structure of endosperm cells is different at the stages of their development.The Sesbania gum is the endosperm after its synthesis is located within the cell.46.5--50% of that seed weight is taken up by the cotyledon and plumule,the latter is consti- tuted by the tong rectangle cells with rich starch grains and the short rectangle cells with rich proteinoplasts. Therefore,it provides the cytological data for complex utilization of the Sesbania Seeds.
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