Abstract
Colony allorecognition assays (CAAs) were performed between colonies of the world-wide distributed tunicate Botryllus schlosseri, sampled from the Mediterranean coast of Israel (Is), from Monterey, California (Mon) and from Mutsu Bay, Japan (Ja). While all 48 Is vs Ja CAAs resulted in nonfusion responses, unexpectedly, 4.4% of the 45 Is vs Mon pairs and 12.0% of the 25 Ja vs Mon assays ended in colony fusions. Allogeneic effector mechanisms in all 3 populations were similar, except for the Ja population which was characterized additionally by the appearance of masses of bright yellow blood cells gathered in the tips of interacting ampullae. A total of 201 multiple CAAs on 24 Is vs Mon, 22 Is vs Ja and 21 Ja vs Mon rejecting pairs did not show an allospecific memory in the rejection phenomenon. Results are discussed in view of the accumulated data on allogeneic responses in 5 remote populations of B. schlosseri.
| Original language | English |
|---|---|
| Pages (from-to) | 989-994 |
| Number of pages | 6 |
| Journal | Zoological Science |
| Volume | 9 |
| Issue number | 5 |
| State | Published - 1992 |
| Externally published | Yes |
Keywords
- Allogenic effect
- Atlantic Ocean
- Blood cell
- Botryllus schlosseri
- Cellule sanguine
- Colonie
- Colony
- Effet allogénique
- Intraspecific recognition
- Invertebrata
- Japan Sea
- Marine environment
- Mediterranean Sea
- Mer Méditerranée
- Mer du Japon
- Milieu marin
- Océan Atlantique
- Océan Pacifique
- Pacific Ocean
- Prochordata
- Reconnaissance intraspécifique
- Urochordata
