2007
An Ultrastructural Comparison of the Attachment Sites Between Gregarina steini and Cryptosporidium muris
VALIGUROVÁ, Andrea, Břetislav KOUDELA, Lada HOFMANNOVÁ a Jiří VÁVRAZákladní údaje
Originální název
An Ultrastructural Comparison of the Attachment Sites Between Gregarina steini and Cryptosporidium muris
Název česky
An Ultrastructural Comparison of the Attachment Sites Between Gregarina steini and Cryptosporidium muris
Autoři
VALIGUROVÁ, Andrea (703 Slovensko, garant), Břetislav KOUDELA (203 Česká republika), Lada HOFMANNOVÁ (203 Česká republika) a Jiří VÁVRA (203 Česká republika)
Vydání
The Journal of Eukaryotic Microbiology, 2007, 1802-128X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Kanada
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14310/07:00023367
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000251386300005
Klíčová slova anglicky
Epimerite; feeder organelle; gregarine; trophozoite; ultrastructure
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 15. 1. 2008 15:42, doc. RNDr. Andrea Bardůnek Valigurová, Ph.D.
V originále
Early developmental stages of Gregarina steini Berndt, 1902 from the intestine of Tenebrio molitor larvae were studied by transmission electron microscopy. The formation and structure of the eugregarine attachment site were compared with comparable features found on the feeder organelle of Cryptosporidium muris Tyzzer, 1907, from the stomach of experimentally infected rodents. The similarity of the attachment strategy between both organisms was revealed. The membrane fusion site in G. steini, formed by the trophozoite plasma membrane, host cell plasma membrane and a membrane-like structure limiting the cortical zone of the epimerite, resembles the Y-shaped membrane junction between the host cell plasma membrane, the trophozoite plasma membrane and membrane surrounding the anterior vacuole in C. muris. The anterior vacuole of C. muris appears to be the precursor of the feeder organelle and its structure is very similar to the epimeritic bud and the cortical zone of G. steini trophozoites. In both investigated organisms, the apical complex disappears early during cell invasion. The possibility of the epicellular location of Cryptosporidium on the surface of host cells is discussed.
Česky
Early developmental stages of Gregarina steini Berndt, 1902 from the intestine of Tenebrio molitor larvae were studied by transmission electron microscopy. The formation and structure of the eugregarine attachment site were compared with comparable features found on the feeder organelle of Cryptosporidium muris Tyzzer, 1907, from the stomach of experimentally infected rodents. The similarity of the attachment strategy between both organisms was revealed. The membrane fusion site in G. steini, formed by the trophozoite plasma membrane, host cell plasma membrane and a membrane-like structure limiting the cortical zone of the epimerite, resembles the Y-shaped membrane junction between the host cell plasma membrane, the trophozoite plasma membrane and membrane surrounding the anterior vacuole in C. muris. The anterior vacuole of C. muris appears to be the precursor of the feeder organelle and its structure is very similar to the epimeritic bud and the cortical zone of G. steini trophozoites. In both investigated organisms, the apical complex disappears early during cell invasion. The possibility of the epicellular location of Cryptosporidium on the surface of host cells is discussed.
Návaznosti
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