{"title":"重新隔离和重新评估terricola Greeff的边界,1886年(Amoebozoa,Discosea,Thecamoebida),描述了Thecamoeba vicaria n.sp。","authors":"Yelisei Mesentsev , Alina Surkova , Oksana Kamyshatskaya , Elena Nassonova , Alexey Smirnov","doi":"10.1016/j.ejop.2023.126030","DOIUrl":null,"url":null,"abstract":"<div><p>We studied a large species of <em>Thecamoeba</em> found in a glass dish with soaked moss and obtained 18s rRNA gene sequence of this organism. Morphologically, the strain was most similar to <em>T. terricola</em> sensu Page, but had significant differences in cell size and nuclear morphology. A more complete similarity was found with the original description of “<span><em>Amoeba</em><em> terricola”</em></span> by Greeff, as well as with Penard’s descriptions and slides. The analysis of literature data shows that the strain described by Page in 1977 as a re-isolated <em>T. terricola</em> differs from the original description of this species provided by Greeff in 1866 and data by Penard published in 1902 and 1913. Based on our observations as well as on Greeff’s and Penard’s data, we reassessed the species boundaries of <em>T. terricola</em> and established <em>T. vicaria</em> n. sp. for the organism described by Page in 1977. The species <em>T. terricola</em> was defined according to its original description. The observations of amoebae on agar have shown that <em>T. terricola</em> cells can form the “standing amoeba” stage, previously described only for <span><em>Sappinia</em><em> pedata</em></span>. This and some other “behaviour” features of <em>T. terricola</em> may be associated with living conditions in terrestrial habitats.</p></div>","PeriodicalId":12042,"journal":{"name":"European journal of protistology","volume":"91 ","pages":"Article 126030"},"PeriodicalIF":1.9000,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Re-isolation and revaluation of boundaries of Thecamoeba terricola Greeff, 1886 (Amoebozoa, Discosea, Thecamoebida), with description of Thecamoeba vicaria n. sp.\",\"authors\":\"Yelisei Mesentsev , Alina Surkova , Oksana Kamyshatskaya , Elena Nassonova , Alexey Smirnov\",\"doi\":\"10.1016/j.ejop.2023.126030\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>We studied a large species of <em>Thecamoeba</em> found in a glass dish with soaked moss and obtained 18s rRNA gene sequence of this organism. Morphologically, the strain was most similar to <em>T. terricola</em> sensu Page, but had significant differences in cell size and nuclear morphology. A more complete similarity was found with the original description of “<span><em>Amoeba</em><em> terricola”</em></span> by Greeff, as well as with Penard’s descriptions and slides. The analysis of literature data shows that the strain described by Page in 1977 as a re-isolated <em>T. terricola</em> differs from the original description of this species provided by Greeff in 1866 and data by Penard published in 1902 and 1913. Based on our observations as well as on Greeff’s and Penard’s data, we reassessed the species boundaries of <em>T. terricola</em> and established <em>T. vicaria</em> n. sp. for the organism described by Page in 1977. The species <em>T. terricola</em> was defined according to its original description. The observations of amoebae on agar have shown that <em>T. terricola</em> cells can form the “standing amoeba” stage, previously described only for <span><em>Sappinia</em><em> pedata</em></span>. This and some other “behaviour” features of <em>T. terricola</em> may be associated with living conditions in terrestrial habitats.</p></div>\",\"PeriodicalId\":12042,\"journal\":{\"name\":\"European journal of protistology\",\"volume\":\"91 \",\"pages\":\"Article 126030\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2023-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"European journal of protistology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0932473923000755\",\"RegionNum\":2,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MICROBIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"European journal of protistology","FirstCategoryId":"99","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0932473923000755","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MICROBIOLOGY","Score":null,"Total":0}
Re-isolation and revaluation of boundaries of Thecamoeba terricola Greeff, 1886 (Amoebozoa, Discosea, Thecamoebida), with description of Thecamoeba vicaria n. sp.
We studied a large species of Thecamoeba found in a glass dish with soaked moss and obtained 18s rRNA gene sequence of this organism. Morphologically, the strain was most similar to T. terricola sensu Page, but had significant differences in cell size and nuclear morphology. A more complete similarity was found with the original description of “Amoeba terricola” by Greeff, as well as with Penard’s descriptions and slides. The analysis of literature data shows that the strain described by Page in 1977 as a re-isolated T. terricola differs from the original description of this species provided by Greeff in 1866 and data by Penard published in 1902 and 1913. Based on our observations as well as on Greeff’s and Penard’s data, we reassessed the species boundaries of T. terricola and established T. vicaria n. sp. for the organism described by Page in 1977. The species T. terricola was defined according to its original description. The observations of amoebae on agar have shown that T. terricola cells can form the “standing amoeba” stage, previously described only for Sappinia pedata. This and some other “behaviour” features of T. terricola may be associated with living conditions in terrestrial habitats.
期刊介绍:
Articles deal with protists, unicellular organisms encountered free-living in various habitats or as parasites or used in basic research or applications. The European Journal of Protistology covers topics such as the structure and systematics of protists, their development, ecology, molecular biology and physiology. Beside publishing original articles the journal offers a forum for announcing scientific meetings. Reviews of recently published books are included as well. With its diversity of topics, the European Journal of Protistology is an essential source of information for every active protistologist and for biologists of various fields.