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531.
Yoshiyasu Machida Hiroshi Takahashi Tetsuya Tsuruta Akira Goto 《Journal of fish biology》2023,102(2):516-519
The authors evaluated the adaptability of male nine-spined sticklebacks (Pungitius sinensis) at three salinity levels (0, 5 and 10 psu) by comparing nest building success rates with nest structures. Successful nest building decreased as salinity increased. In addition, nests built in fresh water (i.e., 0 psu) were glued together, whereas those built in brackish water (5 and 10 psu) broke easily and fell from the nest site to the gravel bottom. Based on these findings, the authors suggest that P. sinensis adapts to freshwater environments. 相似文献
532.
J Tsuruta T Yamamoto K Kozono T Kambara 《The journal of histochemistry and cytochemistry》1985,33(8):767-777
A new sophisticated method for enzyme-antibody conjugation developed in quantitative solid-phase enzyme immunoassay was revealed to be an applicable method for immunohistochemistry; one that offered several advantages over present methods. Using a new maleimide derivative as a coupling reagent, monomeric conjugate of horseradish peroxidase and Fab' antibody was easily prepared with high efficiency and reproducibility. Nonspecific staining was greatly reduced in the presence of this monomeric conjugate. Since the enzyme activity and antigen-binding activity were well preserved in the conjugate, the reaction was strong enough to analyze the antigen localization in intracellular organelles or in interstitial tissue space by both light and electron microscopy. The fate of plasma albumin was investigated in liver, skin, and kidney using the new method with rabbit anti-guinea pig albumin antibody, and satisfactory results were obtained. In the liver, the reaction products were observed in the rough and smooth endoplasmic reticulum and the Golgi apparatus in hepatocytes, which confirmed the synthesis of plasma albumin in hepatocytes of guinea pig. In a study of the distribution of albumin, reaction products were seen in the intercellular space of the epidermis, along the basement membranes of epidermis and of proximal convoluted tubules in kidney, and among the collagen fibers in interstitial tissue, particularly at papillary dermis, suggesting the wide distribution of plasma albumin in interstitial extravascular tissue spaces. In addition, positive reaction was obtained in the apical vesicles and the lysosomes of the proximal convoluted tubules and in the pinocytotic vesicles of the basal cells of epidermis, suggesting the reabsorption and destruction of albumin in the kidney and the skin. 相似文献