Abstract: The morphology and ultrastmcture of two alga species Isochrysis zhanjiangensis sp. nov and Isochrysis galban Parke were comparatively observed by scanning electron microscope （SEM） and transmission electron microscope （TEM）. The I. zhanjiangensis sp. nov was a little bigger in size than L galban though they both had two nearly equal, smooth flagella without body - hesion. I. zhanjiangensis sp. nov had the cellular surface covered with 2 - 4 layers of different shaped scales and higher ratio of flagella length to cellular length than I. galban. However, the cellular surface of I. galban was covered with small circular particles without scales. One cup - shaped chromatophore was situated in postmedian of I. zhanjiangensis sp. nov. The I. galban cell had two chloroplasts found in two sides of the cell, a few osmiophilic granules with median electron density in the chloroplasts. The pyrenoid was situated in chromatophore and pierced by one or several thylakoids. The nuclei were situated in the middle of the two Isochrysis cells, and one or two chrysolaminaraes were situated in the anterior cell. Mitochondria and Golgi body were in both of the cells. There were many global structures nearby the Golgi body cisternae coated with vesicles in both Isochrysis.
刘春凤, 吴雪, 高悦勉. 两种等鞭金藻外部形态与超微结构的观察比较[J]. 大连海洋大学学报, 2008, 23(4): 273-277.
LIU Chun-feng, WU Xue, GAO Yue-mian. The morphological observation and comparison of ultrastructure in two alga species Isochrysis zhanjiangensis sp. nov and Isochrysis galban Parke. Journal of Dalian Ocean University, 2008, 23(4): 273-277.
2008, Vol. 23 
