Dynamic mucus secretion in ventral surfaces of toe pads of the tree frog (Dryophytes japonica)  

作　　者：Jae-Uk SEOL Jung Su PARK Jae-Hong LIM Hyeon Su HWANG Eun-Bin KIM Seob-Gu KIM Jae-Il PARK Ha-Cheol SUNG Joon Heon KIM Eung-Sam KIM 

机构地区：[1]Department of Biological Sciences,School of Biological Sciences and Biotechnology,Chonnam National University,Gwangju,Republic of Korea [2]Advanced Photonics Research Institute,Gwangju Institute of Science and Technology,Gwangju,Republic of Korea [3]Pohang Accelerator Laboratory,Pohang,Gyeongbuk,Republic of Korea [4]Korea Basic Science Institute,Gwangju,Republic of Korea [5]Research Center of Ecomimetics,Institute of Sustainable Ecological Environment,Chonnam National University,Gwangju,Republic of Korea [6]Research Center of Next-Generation Sensors,Chonnam National University,Gwangju,Republic of Korea

出　　处：《Integrative Zoology》2024年第6期1076-1091,共16页整合动物学(英文版)

基　　金：supported by a National Research Foundation of Korea grant funded by the Korean government(MSIT)(Grant Nos.2022R1A2C1007366 and 2021R1A2C1008787).

摘　　要：The tree frog is a prominent amphibian among terrestrial vertebrates known for its ability to adhere to various surfaces through the capillary forces of water in the microchannels between micropillars on its disc-shaped toe pads,a phenomenon known as wet adhesion.However,the secretion pattern of mucus on the attachment surface of living tree frog toe pads and the distribution of active mucus pores(AMPs)have not yet been fully elucidated.In this study,we utilized synchrotron X-ray micro-computed tomography and interference reflection microscopy to obtain the spatial distribution of the entire population of ventral mucus glands on the toe pads of living tree frogs and the real-time mucus secretion patterns from the ventral mucus pores on the contact surface under different environmental conditions.We observed that the number and secretion frequency of AMPs on the toe pad are regulated according to environmental conditions.Such dynamic mucus secretion on the tree frog’s toe pad could contribute to the understanding of capillary force regulation for wet adhesion and the development of adhesive surfaces by mimicking the mucus-secreting toe pad.

关 键 词：interference reflection microscopy mucus pore mucus secretion synchrotron X-ray microtomography toe pad tree frog 

分 类 号：Q95[生物学—动物学]