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author:

刘心义 (刘心义.) [1] | 徐二华 (徐二华.) [2] | 陈继伟 (陈继伟.) [3] | 刘元刚 (刘元刚.) [4] | 汪少芸 (汪少芸.) [5] | 叶秀云 (叶秀云.) [6]

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Abstract:

利用硫酸铵沉降、离子交换色谱CM-Sephadex C-50、凝胶过滤色谱Sephadex G-75以及高效液相色谱(HPLC)Poros HS-20,从红豆种子中分离纯化出一种具有抗真菌活性的几丁质酶.SDS-PAGE显示还原与非还原状态下该蛋白分子质量分别为27.7和22.7 kDa,这表明该几丁质酶分子内含有二硫键.该酶比活为14.57 U/mg,最适反应pH为5.4,最适反应温度为50 ℃.它对棉花枯萎病菌、甜瓜枯萎病菌与瓜果腐霉病菌等真菌有明显的抑制作用.

Keyword:

几丁质酶 红豆 纯化 表征

Community:

  • [ 1 ] 福州大学生物工程研究所,福建福州350002

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Source :

福州大学学报:自然科学版

ISSN: 1000-2243

CN: 35-1337/N

Year: 2007

Issue: 4

Volume: 35

Page: 625-630

Cited Count:

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SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count: -1

30 Days PV: 3

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