کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2047156 | 1543321 | 2007 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microscopical observations on four marine Dysteria species (Ciliophora, Cyrtophorida)
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
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چکیده انگلیسی
Four interesting strains of marine ciliates belonging to the genus Dysteria, collected from the coastal area of Qingdao, China, were investigated using living observations and silver impregnation methods. New data are supplied in redefinitions of three poorly known species, all of which had two contractile vacuoles. D. crassipes Claparède and Lachmann, 1859 has a rectangular body about 65Ã35 μm in vivo, with a podite subcaudal on the ventral side and a dorsal spine on some specimens; it has four right kineties, the rightmost two of which extend dorso-apically; both plates of examined specimens had a covering of ectosymbiotic bacteria. D. semilunaris (Gourret and Roeser, 1886) Kahl, 1931 has an oval body about 30Ã16 μm in vivo, with a caudal podite and a groove on the left plate; it also has four right kineties, the rightmost two of which extend dorso-apically. D. pectinata (Nowlin, 1913) Kahl, 1931 also has an oval body and caudal podite, but is larger at about 85Ã40 μm in vivo; it has seven right kineties, the rightmost two of which extend dorso-apically and the leftmost one is short and posterior. The fourth strain was D. brasiliensis Faria et al., 1922, which was found to vary in both shape and the presence or absence of a dorsal spine, it also hosts numerous rod-shaped ectosymbiotic bacteria on both plates of the cell. Based on information available, a key to the marine species that have been investigated by silver impregnation is updated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Protistology - Volume 43, Issue 2, 2 July 2007, Pages 147-161
Journal: European Journal of Protistology - Volume 43, Issue 2, 2 July 2007, Pages 147-161
نویسندگان
Jun Gong, Weibo Song, Alan Warren, Xiaofeng Lin, David McL. Roberts,