双方向氢酶在Gunnera/Nostoc固氮共生体存在的证据  

THE EVIDENCE OF REVERSIBLE HYDROGENASE EXISTING IN THE GUNNERA / NOSTOC SYMBIOSIS

作　　者：苘辉民[1] Warwick B.Silvester 

机构地区：[1]莱阳农学院基础部 [2]维克多大学生物科学系

出　　处：《莱阳农学院学报》1993年第1期43-46,共4页Journal of Laiyang Agricultural College

摘　　要：结果表明:在Gunnera/Nostoc固氮共生体中存在有双方向氢酶,即此酶既可催化组织放H_2,又可催化氢的吸收利用。双方向氢酶的存在,对Gunnera/Nostoc固氮共生体而言是十分有利的,因此酶使固氮酶在固氮过程中具有了适应变化着的还原力供应状况(碳水化合物不足)及氧气环境变化的能力。The work was carried out in the Department of Biological sciences,university of waikato,New Zealang.The results showed that there existed a reversible hydrogenase in the Gunnera / Nostoc Symbiosis,Whichcould not only catalyze H_2evolution but also the consumption of H_2evolued.The reversible hydrogenase was very beneficial to the N_2-fixing proess in the Gunnera / Nostoc symbiosis and able to make the Gunnera / Nostoc symbiosis adapt itself to the changement of biological metabolism and environment.

关 键 词：氢酶 固氮 

分 类 号：S154.381[农业科学—土壤学]