caa a22 4500 477115969 CHVBK 20180405111622.0 cr unu---uuuuu 170330e19960101xx s 000 0 eng 10.1007/BF00000631 doi (NATIONALLICENCE)springer-10.1007/BF00000631 Morphological changes of integumental chloride cells to ambient cadmium during the early development of the teleost, Oreochromis mossambicus [Elektronische Daten] [Tsung-Han Lee, Pung-Pung Hwang, Hui-Chen Lin] Synopsis: Newly-hatched embryos of Oreochromis mossambicus were reared in freshwater and treated with 0 (control), 50 (low level) or 200 (high level) ppb cadmium for 4 days. Changes in the numbers and dimensions of chloride cell apical crypts on the skin of the free embryos were examined daily using scanning electron microscopy. The apical crypts of the chloride cells were rarely observed on the skin of the embryo trunk, and unevenly distributed on the surface of the yolksac. Two days after hatching, the chloride cells of the free embryos exposed to 50 ppb Cd were more ‘active' than those of the other two groups. Compared with the control group, the maximum dimensions of the developing apical crypts were stimulated by 50 ppb Cd and inhibited by 200 ppb Cd. The results indicated that the development of chloride cells in tilapia free embryos was provoked by low level Cd exposure and stunted by high level Cd exposure, suggesting the existence of structure/function relationships in which the activation of chloride cells may be related to the ionoregulatory mechanism in adaptation to Cd exposure. Kluwer Academic Publishers, 1996 Heavy metal nationallicence Free embryos nationallicence Tilapia nationallicence Scanning electron microscopy nationallicence Fish nationallicence Lee Tsung-Han Institute of Zoology, National Taiwan University, 107, Taipei, Taiwan, Republic of China aut Hwang Pung-Pung Institute of Zoology, Academia Sinica, 115, Nankang, Taipei, Taiwan, Republic of China aut Lin Hui-Chen Institute of Zoology, Academia Sinica, 115, Nankang, Taipei, Taiwan, Republic of China aut Environmental Biology of Fishes Kluwer Academic Publishers 45/1(1996-01-01), 95-102 0378-1909 45:1<95 1996 45 10641 https://doi.org/10.1007/BF00000631 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00000631 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lee Tsung-Han Institute of Zoology, National Taiwan University, 107, Taipei, Taiwan, Republic of China aut NATIONALLICENCE 700 1- Hwang Pung-Pung Institute of Zoology, Academia Sinica, 115, Nankang, Taipei, Taiwan, Republic of China aut NATIONALLICENCE 700 1- Lin Hui-Chen Institute of Zoology, Academia Sinica, 115, Nankang, Taipei, Taiwan, Republic of China aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Kluwer Academic Publishers 45/1(1996-01-01), 95-102 0378-1909 45:1<95 1996 45 10641 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer