INTERACTIONS BETWEEN THE METHANOGEN METHANOSARCINA-BARKERI AND RUMEN HOLOTRICH CILIATE PROTOZOA

被引：24

作者：

HILLMAN, K

LLOYD, D

WILLIAMS, AG

机构：

[1] UNIV WALES UNIV COLL CARDIFF,DEPT MICROBIOL,CARDIFF CF2 1TA,S GLAM,WALES

[2] HANNAH RES INST,AYR KA6 5HL,SCOTLAND

来源：

LETTERS IN APPLIED MICROBIOLOGY | 1988年 / 7卷 / 03期

关键词：

Bacteria; -; Metabolism; Metabolites; Methanogens;

D O I：

10.1111/j.1472-765X.1988.tb01250.x

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Interspecies hydrogen transfer between rumen holotrich ciliate protoza and meth-anogenic bacteria has been demonstrated. As a result of the metabolic interaction with Methanosarcina barkeri, the metabolite profile of Isotricha spp. was altered and the production of butyrate and lactate was suppressed in the presence of the methanogen. Use of membrane-inlet mass spectrometry confirmed that the presence of rumen holotrich ciliates reduced the apparent sensitivity of methanogenesis to the inhibitory effects of oxygen; a gas phase concentration of 7-4 kPa oxygen was required to inhibit methanogenesis in the presence of protozoa, while in pure cultures of M. barkeri, methanogenesis was inhibited by a gas phase oxygen concentration of 1-OkPa. © 1988 Oxford University Press. All rights reserved.

引用

页码：49 / 53

页数：5

共 18 条

[1] CELLULOSE FERMENTATION BY A RUMEN ANAEROBIC FUNGUS IN BOTH THE ABSENCE AND THE PRESENCE OF RUMEN METHANOGENS [J].