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林业科学 ›› 2006, Vol. 42 ›› Issue (1): 110-115.doi: 10.11707/j.1001-7488.20060120

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白蚁消化纤维素机理研究进展

杨天赐 莫建初 程家安   

  1. 浙江大学城市昆虫学研究中心,杭州310029
  • 收稿日期:2003-11-26 修回日期:1900-01-01 出版日期:2006-01-25 发布日期:2006-01-25

Advances in the Study on the Digestive Mechanism of Cellulose in Termites

Yang Tianci,Mo Jianchu,Cheng Jia'an   

  1. Urban Entomology Research Center, Zhejiang University Hangzhou 310029
  • Received:2003-11-26 Revised:1900-01-01 Online:2006-01-25 Published:2006-01-25

摘要:

白蚁利用自身及体内共生微生物分泌的纤维素酶降解食物中的纤维素成分,来满足新陈代谢需要。据美国国家生物技术信息中心GenBank数据库统计,目前已有4科6属9种白蚁及其体内共生物的纤维素酶基因被克隆测序。同源性分析表明,白蚁及其共生物编码内切β-1,4-葡聚糖酶的基因,在序列上有较高的相似性。

关键词: 白蚁, 纤维素酶, 共生微生物, 基因克隆, 基因序列

Abstract:

The degradation of cellulose in food of termites depends on cellulases, which were secreted by termite itself or its symbionts. The GenBank database established by the National Center for Biotechnology Information (NCBI) in U.S.A. showed that, the cellulase genes from nine species of termites, which belong to 6 genera, 4 families, have been cloned, and the sequences of these genes have been determined at present. The analysis of homology indicated that the sequence of genes encoding endo-1,4-β-D-glucanase from termites and its symbionts had high comparability.

Key words: termite, cellulase, symbiotic microorganism, gene clone, gene sequence