Relationship Between Cellulase Secreted by Microdochium bolleyi and Total Organic Matter Degradation of Two Kinds of Lawn Grass Litter

doi:10.11733/j.issn.1007-0435.2011.06.012

›› 2011, Vol. 19 ›› Issue (6): 954-959.DOI: 10.11733/j.issn.1007-0435.2011.06.012

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Relationship Between Cellulase Secreted by Microdochium bolleyi and Total Organic Matter Degradation of Two Kinds of Lawn Grass Litter

LU Guang-xin^1,2, CHEN Xiu-rong¹, YANG Cheng-de¹, XUE Li¹

1. Pratacultural College, Gansu Agricultural University, Key Laboratory of Grassland Ecosystem Ministry of Education, Sino-U.S.Centers for Grazingland Ecosystem Sustainability, Agricultural University, Lanzhou, Gansu Province 730070, China;
2. Department of grassland science, Agriculture and Animal husbandry College, Qinghai University, Xining, Qinghai Province 810016, China

Received:2011-05-06 Revised:2011-06-07 Online:2011-12-15 Published:2012-07-09

真菌分泌纤维素酶与2种草坪草凋落物有机质降解相互关系的研究

芦光新^1,2, 陈秀蓉¹, 杨成德¹, 薛莉¹

1. 甘肃农业大学草业学院草业生态系统教育部重点实验室中-美草地畜牧业可持续发展研究中心, 甘肃兰州730070;
2. 青海大学农牧学院草业科学系, 青海西宁810016

通讯作者: 陈秀蓉,E-mail:chenxiurong@gsau.edu.cn
作者简介:芦光新(1974- ),男,青海湟中人,教授,博士研究生,研究方向为草地微生物多样性、功能微生物的开发及利用,E-mail:lugx74@qq.com
基金资助:
国家自然基金项目(30471232)资助

Abstract

Abstract: The dynamics of cellulolytic enzyme secreted by Microdochium bolleyi and total organic matter(TOM) degradation rates of perennial ryegrass(Lolium perenne L.) and White Clover(Trifolium repens L.) litter were investigated using flask liquid fermentation methods.Results showed that TOM degradation rate of perennial ryegrass litter was higher compared to White Clover(P<0.05).Filter paper enzyme(FPA) and carboxymethyl cellulose enzyme(CMCase) activity secreted by Microdochium bolleyi in perennial ryegrass litter was higher than those in White Clover litter(P<0.05).There are correlations between cellulase activity and TOM degradation rate.Higher TOM degradation rates of litter can induce higher FPA and CMCase activities secreted by Microdochium bolleyi.

Key words: Fungi, Cellulase activity, Lawn grass litter, Total organic matter degradation rate

摘要： 应用摇瓶液体发酵方法,分别以多年生黑麦草(Lolium perenne L.)和白三叶(Trifolium repens L.)凋落物为底物,对2种草坪草发酵过程中真菌(Microdochium bolleyi)分泌纤维素酶活力变化以及草坪草凋落物总有机质(TOM)降解率进行了研究。结果表明:黑麦草凋落物TOM降解率高于白三叶凋落物TOM降解率(P<0.05);黑麦草凋落物诱导真菌产生的滤纸酶(FPA)和羧甲基纤维素酶(CMCase)活力均高于白三叶凋落物诱导产生的酶活力(P<0.05)。真菌分泌纤维素酶活力与凋落物TOM降解率之间存在因果关系,能够诱导真菌产生高纤维素酶活力的凋落物其TOM降解率也高。

关键词: 真菌, 纤维素酶活力, 草坪草凋落物, 总有机质降解率

CLC Number:

S153.62

LU Guang-xin, CHEN Xiu-rong, YANG Cheng-de, XUE Li. Relationship Between Cellulase Secreted by Microdochium bolleyi and Total Organic Matter Degradation of Two Kinds of Lawn Grass Litter[J]. , 2011, 19(6): 954-959.

芦光新, 陈秀蓉, 杨成德, 薛莉. 真菌分泌纤维素酶与2种草坪草凋落物有机质降解相互关系的研究[J]. , 2011, 19(6): 954-959.

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Relationship Between Cellulase Secreted by Microdochium bolleyi and Total Organic Matter Degradation of Two Kinds of Lawn Grass Litter

真菌分泌纤维素酶与2种草坪草凋落物有机质降解相互关系的研究

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