Phylogenetic position of Nyctotherus teleacus isolated from a tortoise (Astrochelys radiata) and its electron microscopic features

被引：5

作者：

Suzuki, Jun ^{[1
]}

Kobayashi, Seiki ^{[2
]}

Yoshida, Naoko ^{[2
]}

Azuma, Yoshiyuki ^{[3
]}

Kobayashi-Ogata, Namiko ^{[4
]}

Kartikasari, Dwi Peni ^{[5
]}

Yanagawa, Yasuaki ^{[6
]}

Iwata, Satoshi ^{[2
]}

机构：

[1] Tokyo Metropolitan Inst Publ Hlth, Dept Microbiol, Div Food Microbiol, Shinjuku Ku, 3-24-1 Hyakunin Cho, Tokyo 1690073, Japan

[2] Keio Univ, Dept Infect Dis, Sch Med, Shinjuku Ku, 35 Shinanomachi, Tokyo 1608582, Japan

[3] Kitasato Univ, Lab Anim & Human Nutr Physiol, Sch Vet Med, 35-1 Higashi,23 Bancho, Towada, Aomori 0348628, Japan

[4] Kochi Univ, Ctr Adv Marine Core Res, 200 Mononobe Otsu, Nankoku, Kochi 7838502, Japan

[5] Univ Airlangga, Fac Med, Dept Parasitol, Kampus A UNAIR,Jl Prof Moestopo 47, Surabaya 60132, Indonesia

[6] Natl Ctr Global Hlth & Med, AIDS Clin Ctr, Shinjuku Ku, 1-21-1 Toyama, Tokyo 1628655, Japan

来源：

JOURNAL OF VETERINARY MEDICAL SCIENCE | 2020年 / 82卷 / 06期

关键词：

Astrochelys radiate; electron microscopic feature; genetic phylogeny; Nyctotheroides sp; Nyctotherus teleacus; MOLECULAR PHYLOGENY; ARMOPHOREA; MORPHOLOGY;

D O I：

10.1292/jvms.20-0004

中图分类号：

S85 [动物医学（兽医学）];

学科分类号：

0906 ;

摘要：

A commensal ciliate was isolated from the stool of a tortoise (Astrochelys radiata). The ciliate was classified as Nyctotherus teleacus, according to its basic morphological features. Electron microscopic observations using cultured N. teleacus (NictoT1 strain) revealed many spherical hydrogenosomes and methanogen-suspected bacteria, together with a characteristic triangular macronucleus containing many spherical chromosomes in the cytoplasm of NictoT1. The results of phylogenetic analysis showed that NictoT1 was included in the cluster of Nyctotheroides spp. (family Nyctotheridae). Nyctotheroides spp. commonly infest amphibians, which are taxonomically closely related to reptiles, including the tortoises evaluated in the present study.

引用

页码：699 / 703

页数：5

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