Zoology Department, Faculty of Science, Cairo University, Giza, Egypt.
Parasitol Res. 2011 Jan;108(1):219-25. doi: 10.1007/s00436-010-2061-1. Epub 2010 Sep 24.
Out of 600 marine fish from the Red Sea belonging to three different species that were collected and examined for microsporidian parasites, 87 (14.5%) fish were found to be infected. The infection was recorded as cysts or xenomas embedded in the gut epithelium and the peritoneal cavity of the three fish species. The highest percent of infection with microsporidian parasites was recorded in Saurida tumbil 19.5% (39/200) followed by Pagrus pagrus 15% (45/300) and the lowest percent of infection was recorded in Epinephelus chlorostigma 3% (three out of 100). After rupture of the cysts, the spores were released and examined by light microscopy. Each spore was elongated to ellipsoidal in shape and possessed a posterior vacuole which is characteristic to phylum Microspora. They measure 1.6 ± 0.5 μm (1.5-2.4 μm) × 1.3 ± 0.1 μm (1.3-2.0 μm) in Saurida tumbil and Pagrus pagrus, respectively. The spores of Pleistophora sp recorded from E. chlorostigma were ovoid to pyriform in shape and measure 1.9 ± 0.5 μm (1.8-2.7 μm) × 1.6 ± 0.4 μm (1.5-2.4 μm).
从红海采集并检查的 600 种不同种属的海洋鱼类中，有 87 种（14.5%）鱼类被发现感染了微孢子虫寄生虫。感染记录为在三种鱼类的肠上皮和腹腔内嵌入的包囊或异生体。感染微孢子虫寄生虫的最高百分比记录在 Saurida tumbil 中为 19.5%（39/200），其次是 Pagrus pagrus 为 15%（45/300），感染率最低的是 Epinephelus chlorostigma 为 3%（100 条中有 3 条）。包囊破裂后，孢子被释放出来，并通过光学显微镜进行检查。每个孢子呈拉长的椭圆形，具有后囊泡，这是微孢子门的特征。它们在 Saurida tumbil 和 Pagrus pagrus 中的大小分别为 1.6±0.5μm（1.5-2.4μm）×1.3±0.1μm（1.3-2.0μm）。从 Epinephelus chlorostigma 中记录到的 Pleistophora sp 孢子呈卵圆体形至梨形，大小为 1.9±0.5μm（1.8-2.7μm）×1.6±0.4μm（1.5-2.4μm）。
