Kudoa prunusi n. sp. (Myxozoa: Multivalvulida) from the brain of Pacific bluefin tuna Thunnus orientalis (Temminck & Schlegel, 1844) cultured in Japan.
Kudoa prunusi n. sp. (Myxozoa: Multivalvulida) from the brain of Pacific bluefin tuna Thunnus orientalis (Temminck & Schlegel, 1844) cultured in Japan.
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Kudoa prunusi n. 樱桃
DOI：
10.1016/j.parint.2010.11.006
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发表时间：
2011
影响因子：
1.9
通讯作者：
Osamu Murata
中科院分区：
文献类型：
--
作者：
F. Meng;H. Yokoyama;S. Shirakashi;Daniel Grabner;Kazuo Ogawa;Katsuya Ishimaru;Yoshifumi Sawada;Osamu Murata
核桃叶蝉Kudoa prunusi n.sp.从日本养殖的太平洋蓝鳍金枪鱼的脑中描述了粘虫(粘虫；多瓣目)。在大脑和大脑中发现了许多白色的囊肿，大小可达0.5毫米。孢子有5个孢子瓣和5个极果，顶面看起来像五瓣樱花，侧面看是圆底圆锥形。平均孢子大小：宽9.63(8.5-10.3)μm，长7.5(6.7-8.6)μm。在孢子形态、18S rDNA序列和28S rDNA序列上有明显差异(分别相差0.3%和1.7%)，但其孢子大小与具5~6个孢子孔的Kudoa yasunagai ex Sillago ciliata相似。18S rDNA的系统发育分析表明，该种与侵染脑部的多瓣种K.yasunagai、K.chaetodoni、K.letherini和K.nephila聚在一起，而不是五瓣Kudoa spp.结合形态、分子和生物学上的差异，证明该种为一新种。
Kudoa prunusi n. sp. (Myxozoa; Multivalvulida) is described from the brain of Pacific bluefin tuna Thunnus orientalis cultured in Japan. Numerous white cysts, up to 0.5mm in size, were found on and in the brain. Spores having typically five spore valves and five polar capsules resembled a five-petal cherry blossom in apical view and were conical shape with a round bottom in side view. Average spore size was 9.63 (8.5–10.3)μm in width and 7.50 (6.7–8.6)μm in length. The spore dimensions of K. prunusi overlapped with those of Kudoa yasunagai ex Sillago ciliata having five to six spore valves, but they were clearly distinct in spore shape, 18S rDNA and 28S rDNA sequences (0.3% and 1.7% differences, respectively). Phylogenetic analysis of 18S rDNA revealed that K. prunusi grouped with the brain-infecting multivalvulid species, K. yasunagai, K. chaetodoni, K. lethrini and K. neurophila, rather than five-valved Kudoa spp. Combined with morphological, molecular and biological differences, K. prunusi was proven to be a new species.