Till sidans topp

Sidansvarig: Webbredaktion
Sidan uppdaterades: 2012-09-11 15:12

Tipsa en vän
Utskriftsversion

Identification, Location,… - Göteborgs universitet Till startsida
Webbkarta
Till innehåll Läs mer om hur kakor används på gu.se

Identification, Location, and Emergence of the Cercaria of Leuceruthrus micropteri (Trematoda: Azygiidae) Recovered from the Snail Pleurocera semicarinata (Gastropoda: Pleuroceridae) at North Elkhorn Creek, Kentucky

Artikel i vetenskaplig tidskrift
Författare R. Rosen
C. Peng
B. Traw
E. Blevins
B. Jovanovic
Aishe A. Sarshad
F. Zaki
Publicerad i Comparative Parasitology
Volym 86
Nummer/häfte 2
Sidor 142-148
ISSN 1525-2647
Publiceringsår 2019
Publicerad vid Institutionen för biomedicin, avdelningen för medicinsk kemi och cellbiologi
Sidor 142-148
Språk en
Länkar dx.doi.org/10.1654/1525-2647-86.2.1...
Ämnesord Leuceruthrus micropteri, cercaria, redia, Pleumcera semicarinata, histology, Kentucky, Azygiidae, proterometra-macrostoma, tail chamber, experimental infections, digenetic trematode, morphology, Parasitology, Zoology, tchell jb, 1980, international journal for parasitology, v10, p181, tchell jb, 1980, international journal for parasitology, v10, p75, ior dj, 1979, journal of experimental biology, v83, p239
Ämneskategorier Biologiska vetenskaper

Sammanfattning

We have encountered azygiid cercariae shed from the snail, Pleurocera semicarinata, at North Elkhorn Creek, Scott County, Kentucky, since 2004. Samples of these cercariae were frozen, and their DNA analyzed. The resulting alignment total length of 394 base pairs from partial 5.8S and 28S genes and the complete ribosomal internal transcribed spacer 2 (ITS2) confirmed our identification of the North Elkhorn Creek cercaria as Leuceruthrus micropteri. There was a 100% match to adult L. micropteri obtained from largemouth bass at Wheeler Reservoir, Alabama. Prevalence of infections by L. micropteri in snails was low at North Elkhorn Creek during 2004 (1.8% [7/400]) and 2017 (0.9% [4/432]). Quantitative data were obtained regarding cercarial emergence (daily and long-term patterns), site of infection of rediae, and functional morphology of the distome and tail stem. Most (96.1%) cercariae were released during the 12-hr light phase of a 12-hr light:12-hr dark cycle, and the average number of cercariae released per 7 snails per day over 21 d ranged between 0 and 2.3. Individual snails most frequently shed between 0 and 2 (range 0-6) cercariae per day. Snails shed cercariae for an average of 12.6 +/- 3.1 d of the 21-d sampling period. Histology revealed rediae in the bottom whorl of the snail within the perintestinal sinus separated from the mantle cavity and gills by a thin mantle membrane. Envelopment of the distome body by the tail stem in vitro required less than 2 min. The lip of the tail chamber moved forward over the distome body until the latter was completely enclosed.

Sidansvarig: Webbredaktion|Sidan uppdaterades: 2012-09-11
Dela:

På Göteborgs universitet använder vi kakor (cookies) för att webbplatsen ska fungera på ett bra sätt för dig. Genom att surfa vidare godkänner du att vi använder kakor.  Vad är kakor?