Naslov
Loss of Wound Melanization Response in the Cave Shrimp Troglocaris

Autori
Fong, Daniel W. ; Bilandžija, Helena ; Laslo, Mara ; Porter, Megan L.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
9th International Crustacean Congress : abstract book / - , 2018, 21-21

Skup
9th International Crustacean Congress

Mjesto i datum
Washington D.C., Sjedinjene Američke Države, 22.05.2018. - 25.05.2018

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
wound healing ; melanization ; cave-adapted animal

Sažetak
Many species adapted to aphotic subterranean habitats have lost all body pigmentation. Yet, melanization is an important component of wound healing in arthropods. We amputated appendages in a variety of cave-adapted and surface-dwelling arthropods. A dark clot formed at the site of injury in most species tested, including even albino cave-adapted species. The dark coloration of the clots was due to melanin deposition. The speed of wound melanization was uncorrelated with a difference in metabolic rate between surface and cave populations of an amphipod. The chelicerate Limulus polyphemus, all isopod crustaceans tested, and the cave shrimp Troglocaris anophthalmus did not melanize wounds. The loss of wound melanization in T. anophthalmus was an apomorphy associated with adaptation to subterranean habitats, but in isopods it appeared to be a symplesiomorphy unrelated to colonization of subterranean habitats. We conclude that wound melanization i) is an important part of innate immunity because it was present in all major arthropod lineages, ii) is retained in most albino cave species, and iii) has been lost several times during arthropod evolution, indicating melanization is not an indispensable component of wound healing in arthropods.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA