Digestion of cellulose and xylan by symbiotic bacteria in the intestine of the Indian flying fox (Pteropus giganteus)
Digestion of cellulose and xylan by symbiotic bacteria in the intestine of the Indian flying fox (Pteropus giganteus)
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DOI：
10.1016/j.cbpb.2004.07.006
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发表时间：
2004-09-01
影响因子：
2.3
通讯作者：
Sripathi, K
中科院分区：
文献类型：
--
作者：
Anand, AAP;Sripathi, K
蝙蝠（翼手目）是一种广泛分布的哺乳动物。Pteropus spiriteus属于Suborder Megachiroptera。这种蝙蝠以水果和树叶为主要食物。纤维素和木聚糖是叶片的主要成分。当它们在饮食中消耗叶子时，它们的消化道必须含有纤维素分解和木聚糖分解细菌，这些细菌有助于纤维素和木聚糖的消化。在含纤维素和木聚糖的贝格琼脂培养基上分离筛选了纤维素分解菌和木聚糖分解菌。分离的细菌进行了生物化学表征，发现是普通变形杆菌，奇异变形杆菌，弗氏柠檬酸杆菌，产酸沙雷氏菌和产酸克雷伯氏菌。这些细菌有助于消化蝙蝠（P.acuteus）饮食中的纤维素和木聚糖。在这里，我们表明，树叶也被这些蝙蝠用作碳水化合物来源。食虫蝙蝠，蹄蝠fulvus，被用作对照，不具有纤维素分解和木聚糖分解细菌。(C)2004年爱思唯尔公司All rights reserved.
Bats (Order Chiroptera) are a widely distributed group of mammals. Pteropus giganteus belongs to the Suborder Megachiroptera. This bat consumes fruits and leaves as their major food. Cellulose and xylan are the major composition of leaves. As they consume leaves in their diet, their digestive tract must contain cellulolytic and xylanolytic bacteria which help in the digestion of cellulose and xylan. The cellulolytic and xylanolytic bacteria were isolated and screened on Berg's agar containing cellulose and xylan. The bacteria isolated were characterized biochemically and found to be Proteus vulgaris, Proteus mirabilis, Citrobacter freundii, Serratia liquefaciens and Klebsiella oxytoca. These bacteria help in digestion of cellulose and xylan in the diet of the bat, P. giganteus. Here we show that leaves are also used as a carbohydrate source by these bats. An insectivorous bat, Hipposideros fulvus, was used as a control and does not possess cellulolytic and xylanolytic bacteria. (C) 2004 Elsevier Inc. All rights reserved.