SEPERATION OF MALLOMONAS DUERRSCHMIDTIAE SP. NOV. FROM M. CRASSISQUAMA AND M. PSEUDOCORONATA: IMPLICATIONS FOR PALEOLIMNOLOGICAL RESEARCH 1
SEPERATION OF MALLOMONAS DUERRSCHMIDTIAE SP. NOV. FROM M. CRASSISQUAMA AND M. PSEUDOCORONATA: IMPLICATIONS FOR PALEOLIMNOLOGICAL RESEARCH 1
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杜尔施密蒂亚马洛单胞菌的分离。
DOI：
10.1111/j.0022-3646.1990.00728.x
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发表时间：
1990
影响因子：
2.9
通讯作者：
H. Kling
中科院分区：
文献类型：
--
作者：
P. Siver;J. Hamer;H. Kling
一个新物种，Mallomonas duerrschmidtiae，具有与 Mallomonas crassisquama (Asmund) Fott 和 Mallomonas pseudocoronata Prescott 共同的特征，是在比电导率和总磷浓度较低的酸性湖泊中描述的。鳞片、刚毛和刺的特征有助于区分这三个类群。 M. duerrschmidtiae 的鳞片长度和面积显着大于 M. crassisquama，但小于 M. pseudocoronata。尽管M. duerrschmidtiae鳞片的前边缘下肋可能会延伸形成短翅，但鳞片缺乏M.假冠状鳞片特有的大的向前突出的前翅特征。 V 形肋骨和前缘下肋骨的圆顶和连接处的特征也有助于区分这三个物种。 M. duerrschmidtiae 的细胞在其后鳞上也具有长、光滑且粗的刺，并且缺乏盔状刚毛。 M. duerrschmidtiae 在 pH、温度、比电导、总磷和季节梯度方面的最大值与 M. crassisquama 或 M. fakecoronata 不同。基于九个形态特征的判别分析成功地对这三个物种的体鳞进行了分类。讨论了 M. duerrschmidtiae 作为生物指示剂在未来湖泊监测和古湖泊学推断研究中的重要性。
A new species, Mallomonas duerrschmidtiae, with characteristics common to both Mallomonas crassisquama (Asmund) Fott and Mallomonas pseudocoronata Prescott, is described from acidic lakes low in specific conductance and total phosphorus concentration. Characteristics of scales, bristles and spines serve to separate the three taxa. The length and area of scales of M. duerrschmidtiae are significantly larger than those of M. crassisquama but smaller than those of M. pseudocoronata. Although the anterior submarginal ribs of scales of M. duerrschmidtiae may become extended to form short wings, the scales lack the large forward projecting anterior wings characteristic of scales of M. pseudocoronata. Features of the dome and junction between the arms of the V‐rib and anterior submarginal ribs also serve to distinguish between the three species. Cells of M. duerrschmidtiae also possess long, smooth and thick spines on their posterior scales and lack helmet bristles. M. duerrschmidtiae has different maxima along pH, temperature, specific conductance, total phosphorus and seasonal gradients than either M. crassisquama or M. pseudocoronata. Discriminant analysis, based on nine morphological characters, was used to successfully classify body scales of the three species. The importance of M. duerrschmidtiae as a bioindicator in future lake monitoring and paleolimnological inference studies is discussed.