MOLUSKUEN LISERI-GURUINEKO EPITELIOAREN ... - Euskara

Emaitzak eta eztabaida
Liseri-zelulen kopuru erlatiboaren murrizpen eta
kaltzio-zelulen, eta batez ere, iraizte-zelulen kopuru
erlatiboaren emendioaren berri, metalez
kutsatutako ingurunetan bizitako lehorreko bareen
liseri-guruinean ere eman da (Marigómez et al.
1998a). Ikerlan honek, zelula-moten osaketaren
aldaketok itzulgarriak direla erakutsi du,
laborategiko baldintzetan behintzat. Dena den,
ingurumen naturaletan animaliak beren bizitza
osoan zehar metal pean kronikoki egon daitezke,
eta beren erantzunak deskribatutakoen antzekoak
liratekeenentz argitu beharrean gaude oraindik ere
(Wang & Rainbow, 2005), hurrengo kapituluan
jorratuko denez.
Azkenik, zelula-moten osaketan metal-
esposizioak eragindako aldaketek, BSD-hedapena
gisako esposizio-biomarkatzaileen gainean eragina
izan ditzaketeenaren berri eman da muskuiluen
kasuan (Soto et al., 2002; 1. Kapitulua). Aitzitik, ez
dirudi Cd + keroseno esposizio eta ondoko arazte-
aldian zehar bareetan suertatutako aldaketek, BSD-
hedapena parametroaren gainean eragina izan
zutenik, Vv BSD aldaketak dosi eta denboraren
menpekoak baitziren. Arrazoia, magurioetan
gertatzen den moduan, bareen liseri-guruinaren
epitelioko ezaugarri berezietan datza, non
lisosomen barneko metalen neurketa
mikroskopikoak liseri-zelulen gainean zuzenean
egin baitaitezken (4. Kapitulua), liseri-zelula
kopurua basala izanik ere.
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