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《Oceanologia Et Limnologia Sinica》 1994-01
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EFFECTS OF TRIPHENYLTIN CHLORIED (TPTC) ON ULTRASTRUCTURES OF CELL OF PLATYMONAS sp.

Chen Guowei; Li Yun; Jiang Ming; Liu Xiaoyun(Department of Biology, Ocean University of Qingdao, Qingdao 266003)(Centre of Analysis, Ocean University of Qingdao, Qingdao 266003)  
Electron microscope examination of treated cells of Platymonas sp. cultured in medium contamination by TPTC at concentration of 6.7 ×10-9 mol/L (EC50) revealed fine structure changes in that cells. The results were as follows: The mitochondria swelled up and its cristae were disintegrated in parts, the concentric membranous worls appeared in the matrix and it was bounded by double membranes; in the chloroplast the reticulate structure of photosynthetic lamellae were damaged and instead of lumping structure due to the lamellae were piled up; the pith of the pyrenoid distended and the starch shell splited up in the several polygonal starch plates around the pith; a large number of starch grains appeared in strome of chloroplast; the stigma moved from the position in the sub-middle of the cell to the bottom of it by the press of starch grains. The nucleus was not morphologically affected.The mitochondria and chloroplast were the most sensitive in their cytological response to TPTC in the cell; in most cases, the nucleus did not change at all.
【Fund】: 国家自然科学基金!48970274
【CateGory Index】: Q945
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