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Notes on Two Marine Ciliates from the Yellow Sea,China:Placus salinus and Strombidium apolatum(Protozoa,Ciliophora) 被引量:3
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作者 XUDapeng SONGWeibo HUXiaozhong 《Journal of Ocean University of China》 SCIE CAS 2005年第2期137-144,共8页
The living morphology and infraciliature of two rare marine ciliates, Placussalinus Dietz, 1964 and Strombidium apolatum Wilbert and Song, 2005, collected from the coastalwaters near Qingdao, China, were investigated ... The living morphology and infraciliature of two rare marine ciliates, Placussalinus Dietz, 1964 and Strombidium apolatum Wilbert and Song, 2005, collected from the coastalwaters near Qingdao, China, were investigated by in vivo observation and protargol impregnationtechnique. The improved diagnosis for Placus salinus is as follows: medium-sized marine Placus, invivo (50-60) μm X (30-40) μm; cell elliptical to barrel-shaped; 28-31 somatic kineties; singlemacronucleus usually ellipsoid and one micronucleus located in the indention of the macronucleus;one contractile vacuole posteriorly positioned. Strombidium apolatum is characterized by: marinestrombidium (40-60) μm X (30-45) μm in vivo, cordiform in shape with somewhat pointed posteriorend and conspicuous apical protrusion; extrusomes prominent, about 15 μm in length and evenlyarranged along the circle kinety; about 16 collar and 5-6 buccal membranelles; one elongatemacronucleus and one micronucleus; circle and ventral kineties consisting of about 53 and 45dikinetids respectively. 展开更多
关键词 marine ciliates Placus salinus Strombidium apolatum
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Factors determining the average body size of geographically separated Arctodiaptomus salinus (Daday, 1885) populations 被引量:2
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作者 Elena V. Anufriieva 《Zoological Research》 CAS CSCD 北大核心 2014年第2期132-141,共10页
Arctodiaptomus salinus inhabits water bodies across Eurasia and North Africa. Based on our own data and that from the literature, we analyzed the influences of several factors on the intra- and inter-population variab... Arctodiaptomus salinus inhabits water bodies across Eurasia and North Africa. Based on our own data and that from the literature, we analyzed the influences of several factors on the intra- and inter-population variability of this species. A strong negative linear correlation between temperature and average body size in the Crimean and African populations was found, in which the parameters might be influenced by salinity. Meanwhile, a significant negative correlation between female body size and the altitude of habitats was found by comparing body size in populations from different regions. Individuals from environments with highly varying abiotic parameters, e.g. temporary reservoirs, had a larger body size than individuals from permanent water bodies. The changes in average body mass in populations were at 11.4 times, whereas, those in individual metabolic activities were at 6.2 times. Moreover, two size groups of A. salinus in the Crimean and the Siberian lakes were observed. The ratio of female length to male length fluctuated between 1.02 and 1.30. The average size of A. salinus in populations and its variations were determined by both genetic and environmental factors. However, the parities of these factors were unequal in either spatial or temporal scales. 展开更多
关键词 Copepoda Aretodiaptomus salinus Body size Sexual dimorphism VARIABILITY
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一株中度嗜盐菌的分离鉴定及特性研究 被引量:2
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作者 王宇 迟乃玉 +2 位作者 孙子羽 李兵 张庆芳 《生物技术》 CAS CSCD 北大核心 2010年第4期39-43,共5页
目的:从盘锦红海滩泥样中分离中度嗜盐菌,对其进行鉴定及特性研究。方法:CZ培养基分离纯化,通过形态学、生理生化实验、16SrDNA序列比对分析进行鉴定,吸光光度法测定生长特性。结果:分离得到一株中度嗜盐菌CNY0802,该菌革兰氏阳性反应,... 目的:从盘锦红海滩泥样中分离中度嗜盐菌,对其进行鉴定及特性研究。方法:CZ培养基分离纯化,通过形态学、生理生化实验、16SrDNA序列比对分析进行鉴定,吸光光度法测定生长特性。结果:分离得到一株中度嗜盐菌CNY0802,该菌革兰氏阳性反应,菌体杆状,宽度0.7μm~0.9μm,长度2μm~3μm,产芽孢,接触酶、酯酶、明胶液化和硝酸盐还原反应阳性,氧化酶、淀粉酶、MR和VP反应均为阴性。生长的盐度范围0.5%~25%(NaCl,W/V),最适盐度5%;温度范围10℃~45℃,最适温度30℃;pH范围4.0~12.0,最适pH8.0~10.0;不同的阴阳离子对CNY0802生长影响显著。经16S rDNA序列比对及系统发育树分析,与Halobacillus salinus亲缘关系最近。结论:该菌的分离鉴定对我国辽宁沿海地区极端环境微生物资源的开发研究有一定意义。 展开更多
关键词 红海滩 中度嗜盐菌 生长特性 16S RDNA 系统发育分析 Halobacillus salinus
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