Gut microbiota of giant panda
作者单位：Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan ProvinceSichuan Agricultural University
会议名称：《中国畜牧兽医学会动物微生态学分会第五届第十二次全国学术研讨会》
会议日期：2016年
学科分类：0907[农学-林学] 090705[农学-野生动植物保护与利用] 09[农学]
摘 要：The giant panda(Ailuropoda melanoleuca) is a highly vulnerable mammal(The IUCN Red List of Threatened Species,2016),whilst being the most iconic and flagship species for wildlife conservation *** giant panda,a member of family Ursidae and possessing a typical carnivore like short gastrointestinal tract,is an enigmatic species because it consumes nearly 12.5 kg of highly fibrous bamboo leaves and stems each day,and it became full-time bamboo eating species by the late Pliocene(2 Mya).Along with the threat of climate change,this bamboo specialist is at risk to extinction because of its sole reliance on large quantities of low-nutrition and low-energy content food from *** profound investigation of Panda’s genome has reported that it encodes all enzymes crucial for a carnivorous digestive system but lacks those required for digesting cellulose rich bamboo *** the excellent studies on Tas1r1pseudogenization(umami taste receptor gene) and appetite-reward system in the panda’s genome to understand the evolutionary consequences of dietary switch of the panda,there is still uncertainty about the underlying mechanisms and one question still remains unanswered;why pandas shifted to bamboo diet? Under such circumstances,it was believed that the giant panda is dependent on gut microbiota in order to adapt to highly fibrous bamboo ***,gastrointestinal disease is reported to be a primary cause of death in both wild and ***,it becomes most significant to understand,how gut microbiota impacts panda’s health and nutrition,and biology behind this *** metagenomic study found the Clostridium bacteria in giant panda gut contains genes known to code enzymes that digest cellulose(Zhu et al.,2011),which was opposed later by a current study with larger sample size of captive pandas which suggested that panda’s carnivore-like gut microbiota has not evolved to efficiently digest cellulose from a fibre-rich bamboo diet(Xue et al.201