Bacterial detoxification of saponins in the crop of the avian foregut fermenter Opisthocomus hoazin

摘要：

The hoatzin is a folivorous bird with microbial fermentation in the crop that consumes plants that contain saponins. We investigated detoxification activity of saponins by bacteria from the hoatzin crop, and how this activity was affected in the presence of methanogens. Strains and mixed cultures were grown in presence of 200 μg-ml-1 Quillaja saponins. Detoxification was determined as loss of haemolytic activity. The methanogenesis was inhibited added bromoethanesulphonic acid (BES). Mixed cultures showed higher rate of saponin detoxification than strains and it was reduced by BES. The hoatzin bacteria detoxify saponins, and methanogenic Archaea might act as a hydrogen sink.

关键词： bacteria saponins detoxification methanogens hoatzin

作者: M.A.Garcīa-Amado F.Michelangeli P.Gueneau M.E.Perez M.G.Domínguez-Bello

作者单位: Laboratory of Gastrointestinal Physiology, BBC,Venezuelan Institute of Scientific Research Caracas, Department of Mathematics, University of Puerto Rico San Juan PR00931, USA Laboratory of Gastrointestinal Physiology, BBC,Venezuelan Institute of Scientific Research Caracas,

会议类型: 国际会议

会议名称: The 7tb International Symposium on the Nutrition of Herbivores(ISNH-7)(第七届国际草食动物营养研讨会)

会议地点: 北京

会议语种:英文

页码: 582-585

在线出版日期: 2007-09-16（万方平台首次上网日期，不代表论文的发表时间）