Age-associated microbiome shows the giant panda lives on hemicelluloses, not on cellulose

作者：Zhang, Wenping^*; Liu, Wenbin; Hou, Rong; Zhang, Liang; Schmitz-Esser, Stephan; Sun, Huaibo; Xie, Junjin; Zhang, Yunfei; Wang, Chengdong; Li, Lifeng; Yue, Bisong; Huang, He; Wang, Hairui; Shen, Fujun; Zhang, Zhihe^*

来源：The ISME Journal, 2018, 12(5): 1319-1328.

DOI：10.1038/s41396-018-0051-y

• AILUROPODA-MELANOLEUCA
• GUT MICROBIOME
• BAMBOO
• EVOLUTION
• COMMUNITY
• RUMEN
• SHAPE
• DIET
• NOV

The giant panda feeds almost exclusively on bamboo, a diet highly enriched in lignin and cellulose, but is characterized by a digestive tract similar to carnivores. It is still large unknown if and how the giant panda gut microbiota contributes to lignin and cellulose degradation. Here we show the giant pandas' gut microbiota does not significantly contribute to cellulose and lignin degradation. We found that no operational taxonomic unit had a nearest neighbor identified as a cellulolytic species or strain with a significant higher abundance in juvenile than cubs, a very low abundance of putative lignin and cellulose genes existed in part of analyzing samples but a significant higher abundance of genes involved in starch and hemicellulose degradation in juveniles than cubs. Moreover, a significant lower abundance of putative cellulolytic genes and a significant higher abundance of putative alpha-amylase and hemicellulase gene families were present in giant pandas than in omnivores or herbivores.

• 出版日期2018-5
• 单位成都大熊猫繁育研究基地; 四川大学