Haematological parameters in Umbrina cirrosa (Teleostei, Sciaenidae):: a comparison between diploid and triploid specimens

被引：65
作者：
Ballarin, L
Dall'Oro, M
Bertotto, D
Libertini, A
Francescon, A
Barbaro, A
机构：
[1] Univ Padua, Dipartimento Biol, I-35100 Padua, Italy
[2] CNR, Ist Sci Marine Biol Mare, Venice, Italy
来源：
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY | 2004年 / 138卷 / 01期
关键词：
Umbrina cirrosa; teleostei; sciaenidae; shi drum; triploidy; haematology; blood cells; enzymology;
D O I：
10.1016/j.cbpb.2004.02.019
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Haematological features were compared between diploid and triploid specimens of the ray-finned fish Umbrina cirrosa. No significant differences between diploids and triploids were reported in haematocrit and total haemoglobin concentration, but erythrocytes and thrombocytes were significantly greater in size in triploids. Glycaemia was significantly lower in diploids, whereas triploid erythrocytes were more resistant to osmotic stress. In triploids, a greater fraction of leukocytes was positive for alkaline phosphatase activity, when stimulated with Bacillus clausii spores, otherwise no significant increase of oxygen consumption was observed in triploid leukocytes after stimulation, based on assays for superoxide anions. Triploids were characterized by a lower concentration of circulating blood cells with a lower surface/volume ratio when compared with diploids. These features may lead to a general disadvantage of triploids in withstanding stress conditions: a situation that needs to be taken into account in aquaculture practice. (C) 2004 Elsevier Inc. All rights reserved.
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页码：45 / 51
页数：7
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