不利于生长的pH条件下蓝藻液泡的形成

被引：7

作者：

吴红艳

赵以军

郭厚良

祝海燕

程凯

许敏

机构：

[1] 华中师范大学生命科学学院,华中师范大学生命科学学院,武汉大学生命科学学院,华中师范大学生命科学学院,华中师范大学生命科学学院,华中师范大学生命科学学院武汉,武汉,武汉,武汉,武汉,武汉

来源：

自然科学进展 | 2001年 / 07期

关键词：

蓝藻; pH; 液泡;

D O I：

暂无

中图分类号：

X173 [环境植物学];

学科分类号：

摘要：

对鱼腥藻sp.595(Anabaena sp.595)、织线藻246(Plectonema boryanum 246)、伪枝藻248(Scytonema hofmanni 248)、念珠藻sp.96(Nostoc sp.96)、颤藻284(Oscilla-toria animlis 284)和极大螺旋藻438(Spirulina maxima 438)等6种蓝藻进行异常pH条件下的液泡化诱导.在pH5.0,6.5,7.0条件下,鱼腥藻sp.595和织线藻246藻细胞均出现液泡化.其中,鱼腥藻sp.595变化明显,其藻细胞膨大,两端变圆甚至球形化,液泡化程度高,且细胞不均等分裂现象普遍,织线藻246藻细胞稍有膨大,液泡化程度较轻.伪枝藻248表现较弱的敏感性,藻细胞仅在pH6.5时诱导液泡化.念珠藻sp.96、颤藻284和极大螺旋藻438在各种pH条件下均不能发生液泡化,对诱导不敏感.采用压片法检查到鱼腥藻sp.595和织线藻246诱导形成的液泡,在相差显微镜下液泡显示为圆球形,基本透明.结果说明,不利于生长的pH也能诱导蓝藻形成液泡.

引用

页码：91 / 95

页数：5

共 31 条

[1] Rapid transient growth at low pH in the cyanobacterium Synechococcus sp. Kallas T,et al. Journal of Bacteriology . 1982
[2] Internal pH and ATP-ADP pools in the cyanoacterium Synechococcus sp.During exposure to growth-inhibiting low pH. Kallas T,et al. Journal of Bacteriology . 1982
[3] Cytology of blue-green algae Ⅰ: The cells of Symploca muscorum. Pankratz H S,et al. American Journal of Botany . 1963
[4] Cytology of blue-green algae Ⅱ: Unusual inclusions in the cytoplasm. Jense J E,et al. Cytologia . 1970
[5] Electron microscope studies on blue-green algae. Ris Singh,R. N. J. Biophys. Biochem. Cytol . 1961
[6] The Biotogy of Blue-Green Algae. Carr N G,et al. London: Black Well Scientific Publications . 1973
[7] A lipid-phase separation model of low-temperature damage to biological membranes. Quinn P J. Cryobiology . 1985
[8] Lower pH limit for the existence of blue-green algae: evolutionary and ecological implications. Brock TD,et al. Science . 1973
[9] The effects of light intensity on the ultrastructure of Chlorogloea fritschi Mitra grown at high temperature. Findley D L,et al. Journal of Phycology . 1970
[10] Sodium chloride-induced volume changes of fresh water cyanobacterium Synechococcus sp.PCC 7942 cells can be probed by chlorphyll a fluorescence. Stamatakis K,et al. Archive of Biochemistry and Biophysics . 1999

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