Structural changes in gill and kidney of juvenile grey mullet under different salinity
YU Na1,2, LI Jia-er1, OU You-jun1, WANG Yong-cui1,2, SU Hui1,2
1. Key Laboratory for Exploitation & Utilization of Marine Fisheries Resource in South China Sea, Ministry of Agriculture;South China Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China; 2. College of Fisheries and Life, Shanghai Ocean University, Shanghai 201306, China
The gill and kidney structure of juvenile grey mulletMugil cephalus was observed under different salinities by using the technology of histological photomicrography.The relationships between structural changes and osmitic regulation were also discussed.The results showed that as the salinity increased,gill lamellae gradually became narrower,and the spacing became smaller. A marked increase in the number and size of chloride cells was also observed.On the lamellae of these fish,chloride cells were generally centralizing to the base of lamellae,and spreading to both sides.At the high-salt group(S40),gill lamellae epithelial appeared to be separation and off.Structures of glomerular and tubular at all levels were shriveled at varying degrees as salinity increased.
于娜1,2, 李加儿1*, 区又君1, 王永翠1,2, 苏慧1,2. 不同盐度下鲻鱼幼鱼鳃和肾组织结构变化[J]. , 2012, 31(4): 424-428.
YU Na1,2, LI Jia-er1, OU You-jun1, WANG Yong-cui1,2, SU Hui1,2. Structural changes in gill and kidney of juvenile grey mullet under different salinity. , 2012, 31(4): 424-428.
[2] David H E,Peter M P,Keith P C.The multi-functional fish gill:dominant site of gas exchange osmoregulation,acid-base regulation,and excretion of nitrogenous waste[J].Pysiol Rev,2005,85(1):97-177.
[3] Dabom K,Cozzi R R F,Marshall W S.Dynamics of pavement cell-chloride cell interactions during abrupt salinity change in Fundulus heteroclitus[J].Exp Biol,2001,204:1889-1899.
[4] Rosa M M-A,Ana S,Manuel G-G,Alberto D,Julio D,Ramoón C,M.del V O-G,Amalia E M.Adaptive branchial mechanisisms in the sturgeon Acipenser naccarii during acclimation to saltwater[J].Comp.Biochem.Physiol,2006,Pair A,141(2):183-190.
[17] Camargo M M P,Martinez C B R.Histo-pathology of gills,kidney and liver of a neo-tropical fish caged in an urban stream[J].Neotrop.Ichthyo,2007,5(3):327-336.
[18] Shen A C Y,Leatherland J F.Histogenesis of the pituitary in rainbow trout(Salmo gairdneri)in different ambient salinities particular reference to the rostral pars distalis[J].Cell Tiss Res,1978,189(2):355-363.
[21] Carmona R,Garci-Gallego M,Sanz A,Domezaín A,Ostos-Garrido M V.Chloride cells and pave-ment cells in gill epithelia of Acipenser naccarii:ultrastructural modi-fications in sea water acclimated specimens[J].Fish Biol.,2004,64:553-566.
