关键词: 大熊猫, 松花竹, 细胞壁, 形态学

Abstract: Giant panda is an indigenous and endangered species in China.It was discussed that the utilization of cell wall of bamboo by giant panda at the morphological viewpoint. The structure of cell wall of Fargesia shoot in both food and feces of giant panda was studied by the ultrathin sectioning and electron microscope. The results showed that the morphological change of the cell wall of Fargesia occurred through giant panda's alimentary canal. The cell wall became thinner, and the rupture and loss of primary and secondary wall was observed. Therefore, it showed that giant panda has the ability to digest part of components of cell wall, such as pectin and semicellulose, etc. Furthermore, it is possible that giant panda can digest a little cellulose. The morphological method used in this study is a new idea for nutrition research. The ability of utilization of cell wall of bamboo by giant panda is unique in carnivore. It is adaptation to its phytophage.

Key words: giant panda (Ailuropoda melanoleuca), Fargesia, cell wall, morphology