caa a22 4500 386400512 CHVBK 20180307112157.0 cr unu---uuuuu 161130e198906 xx s 000 0 eng 10.1017/S0031182000061473 doi S0031182000061473 pii (NATIONALLICENCE)cambridge-10.1017/S0031182000061473 Host—parasite relationships and cysts of Leptomonas lygaei (Trypanosomatidae) in Lygaeus pandurus (Hemiptera: Lygaeidae) [Elektronische Daten] A study of Leptomonas lygaei in Lygaeus pandurus is described. Flagellates with promastigote configuration were found in the midgut, ileum and rectum. Cysts and encysting stages (straphangers) were found in the rectum either attached to the flagella of promastigotes or free in the lumen. In the posterior midgut, the crypts were frequently filled with flagellates, but no attachment to host epithelium was observed. A close association between the flagellates and extracellular membrane layers was observed. In the rectum the flagellates frequently attached by hemidesmosomes to the cuticle of the gland cells and less frequently to the rest of the rectal wall. Interflagellar desmosomes between the expanded sheaths of flagella of adjacent parasites were also observed. Straphanger cysts attached to parental flagella by the formation of zonular desmosomes. Differences were apparent between the organelles of the encysting stages and the parental flagellates. In mature cysts, the cellular organelles were unrecognizable. A comparison between the cysts and flagellates of L. lygaei and Blastocrithidia familiaris is made. Copyright © Cambridge University Press 1989 Leptomonas lygaei nationallicence Lygaeus pandurus nationallicence cysts nationallicence flagellates nationallicence host-parasite relationships nationallicence Tieszen K. L. Department of Biological Sciences, University of Salford, Salford M5 4WT, UK Molyneux D. H. Department of Biological Sciences, University of Salford, Salford M5 4WT, UK Abdel-Hafez S. K. Department of Biological Sciences, Yarmouk University, Irbid, Jordan Parasitology Cambridge University Press 98/3(1989-06), 395-400 0031-1820 98:3<395 1989 98 PAR https://doi.org/10.1017/S0031182000061473 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0031182000061473 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tieszen K. L. Department of Biological Sciences, University of Salford, Salford M5 4WT, UK NATIONALLICENCE 700 1- Molyneux D. H. Department of Biological Sciences, University of Salford, Salford M5 4WT, UK NATIONALLICENCE 700 1- Abdel-Hafez S. K. Department of Biological Sciences, Yarmouk University, Irbid, Jordan NATIONALLICENCE 773 0- Parasitology Cambridge University Press 98/3(1989-06), 395-400 0031-1820 98:3<395 1989 98 PAR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge