Three new limax amoebae isolated from marine surface sediments: Vahlkampfia caledonica n sp, Saccamoeba marina n sp, and Hartmannella vacuolata n sp
Three new limax amoebae isolated from marine surface sediments: Vahlkampfia caledonica n sp, Saccamoeba marina n sp, and Hartmannella vacuolata n sp
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DOI：
10.1111/j.1550-7408.1997.tb05688.x
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发表时间：
1997-01-01
影响因子：
2.2
通讯作者：
Hannah, F
中科院分区：
文献类型：
--
作者：
Anderson, OR;Rogerson, A;Hannah, F
三个新的limax变形虫，从海洋，表面沉积物样品中分离，利用光学显微镜和精细结构特征进行了描述。一个物种，其特征是Vahlkampfiidae科的典型爆发运动，被命名为Vahlkampfia caledonica（47.4 +/- 16.0 mu m x 12.1 +/- 3.2 mu m）。其他两种单足类动物以Hartmannellidae科特有的稳定运动方式移动。一种是囊变形虫，具有明显的后球状尿状体，含有突出晶体的空泡，具有杯状成分的糖萼，以及具有中央核仁的球形核。它被命名为Saccamoeba marina（72.5 +/- 14.9 mu m x 20.7 +/- 4.5 mu m）。另一种哈氏纤毛虫变形虫以稳定的运动方式移动，具有相当恒定的单足形式，缺乏尿状体，但偶尔有拖尾的细胞质团，糖萼中含有杯状结构，其特征是有许多空泡。基于后者的特征，它被命名为Hartmannella vacuolata（32.8 +/- 6.8 μ m x 8.5 +/- 1.8 μ m）。海洋环境中几乎没有描述过limax变形虫，这些数据提供了额外的证据，表明limax变形虫在海洋沉积物中可能比以前认识到的更丰富。
Three new limax amoebae, isolated from marine, surface sediment samples are described using light microscopic and fine structural features. One species, characterized by eruptive locomotion typical of the family Vahlkampfiidae, is assigned the name Vahlkampfia caledonica (47.4 +/- 16.0 mu m x 12.1 +/- 3.2 mu m). The other two monopodial species move with steady locomotion characteristic of the family Hartmannellidae. One is a Saccamoeba with a distinct posterior bulbous uroid, vacuoles containing prominent crystals, glycocalyx with cup-like components, and spherical nucleus with central nucleolus. It is assigned the name Saccamoeba marina (72.5 +/- 14.9 mu m x 20.7 +/- 4.5 mu m). The other hartmannellid limax amoeba moves by steady locomotion and has a rather constant monopodial form, lacks a uroid, but has occasional trailing masses of cytoplasm, contains cup-like structures in the glycocalyx, and is characterized by numerous vacuoles. Based on the latter characteristic, it is assigned the name Hartmannella vacuolata (32.8 +/- 6.8 mu m x 8.5 +/- 1.8 mu m). Few limax amoebae have been described from marine environments and these data provide additional evidence that limax amoebae may be more abundant in marine sediments than realized previously.