Species of Gonostomum and Paragonostomum (Ciliophora, Hypotrichida, Oxytrichidae) from the Valley of Flowers, India, with descriptions of Gonostomum singhii sp nov, Paragonostomum ghangriai sp nov and Paragonostomum minuta sp nov
Species of Gonostomum and Paragonostomum (Ciliophora, Hypotrichida, Oxytrichidae) from the Valley of Flowers, India, with descriptions of Gonostomum singhii sp nov, Paragonostomum ghangriai sp nov and Paragonostomum minuta sp nov
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DOI：
10.1007/s12088-008-0046-x
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发表时间：
2008-09-01
影响因子：
3
通讯作者：
Sapra, G. R.
中科院分区：
文献类型：
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作者：
Kamra, Komal;Kumar, Santosh;Sapra, G. R.
从印度喜马拉雅地区南达德维生物圈保护区（Nanda Devi Biosphere Reserve）的花卉谷采集的土壤样本显示，存在22种自由生活的纤毛虫。有一个优势的物种，表现出口腔纤毛和个体发育的Gonostomum模式。在Gonostomum属的四种中，G affine、G gonostomoida和G kuehnelti与描述种相似，Gonostomum singhii为新种。Paragonostomum属的两个物种，P minuta和P hangriai是新的。本文描述了这三个新种。所有这些物种都表现出明显的肥大纤毛结构。它们的口旁膜揭示了它们的位置，组成纤毛的数量和相邻纤毛之间的距离的特征差异。有人建议，这些物种的口旁膜的具体功能有一个轴承行使不同的食物生物的喜好，因为它们共存于许多网站。这一单一因素可能发挥了重要作用，在这组的物种多样性的hypotrichs在这个孤立的栖息地。
Soil samples taken from the Valley of Flowers, a component of the Nanda Devi Biosphere Reserve in the Himalayan regions of India showed the presence of twenty two free living species of ciliates. There is a preponderance of species which exhibit oral ciliature and ontogenesis in the Gonostomum pattern. Of the four species of the genus Gonostomum, three viz., G affine, G gonostomoida and G kuehnelti are similar to described species; Gonostomum singhii is new. The two species of genus Paragonostomum viz., P minuta and P ghangriai are new. The three new species are described in the present paper. All these species show prominent hypertrophied ciliary structures. Their paroral membranes reveal characteristic differences with respect to their position, number of constituent cilia and the distance between adjacent cilia. It is proposed that such species specific features of the paroral membrane have a bearing in exercising different food organism preferences as they co-exist at many sites. This single factor has possibly played an important role in species diversification of this group of hypotrichs in this isolated habitat.