| 青裸褐穗病菌的生物学特性 |
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| 引用本文： | 任宝仓,冯秀玲,杨成德.青裸褐穗病菌的生物学特性[J].草业科学,2014,31(7):1248-1253. |
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| 作者姓名： | 任宝仓 冯秀玲 杨成德 |
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| 作者单位： | 1.甘肃省农垦农业研究院,甘肃 武威 733006;
2.甘肃农业大学草业学院,甘肃 兰州730070 |
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| 摘 要： | 对青稞(Hordeum vulgare)褐穗病菌(Corticium rolfsii)的生物学特性及营养利用能力进行了研究。结果表明,青稞褐穗病菌担孢子萌发的温度范围为5～30 ℃,最适温度为20 ℃;在自由水中可以萌发,但在100％相对湿度中不萌发;pH为4.53～9.18时均可萌发,最适pH为5.59;48 h萌发率为76.5％;蔗糖、土壤浸渍液、青稞叶浸渍液和牛羊粪浸渍液4种营养液及光照处理对孢子萌发没有明显的促进作用。担孢子在温度15.5～21.0 ℃、相对湿度31％～71％下,最少能存活69 d。果糖培养基褐穗病菌菌丝生长显著高于对照(P<0.05),山梨糖、淀粉和乳糖有显著的抑制作用,硝酸铵和硫酸铵对褐穗病菌菌丝生长略有促进作用,但差异不显著(P＞0.05),而谷氨酸、酪氨酸、尿素和碳酸氨对菌丝生长有显著抑制作用。
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| 关 键 词： | 青稞 褐穗病 生物学特性 营养利用 |
| 收稿时间： | 2013-08-02 |
Biological characteristics and carbon source and nitogen source utilization ability of Corticium rolfsii |
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| REN Bao-cang,FENG Xiu-ling,YANG Cheng-de.Biological characteristics and carbon source and nitogen source utilization ability of Corticium rolfsii[J].Pratacultural Science,2014,31(7):1248-1253. |
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| Authors: | REN Bao-cang FENG Xiu-ling YANG Cheng-de |
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| Institution: | 1.Gansu State Farms Academy of Agricultural Research, Wuwei 733006, China;
2.Pratacultural College of Gansu Agricultural University, Lanzhou 730070, China |
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| Abstract: | In the present paper, the biological characteristics and nutrition utilization ability of Corticium rolfsii isolated from Hordeum vulgare were studied. The basidiospore of C.rolfsii can germinate at temperature range from 5 to 30 ℃ and pH range from pH 4.53 to pH 9.18. The optimal germination conditions were 20 ℃ and pH 5.59 which had 76.5% germination ratio after 48 hours. The basidiospore can germinate in free water, however, it cannot germinate at relative humidity 100%. The basidiospore germination rates did not significantly improve under both nutrient solutions including sucrose, soil and leaf and light treatment. Under 15.5～21.0 ℃ and relative humidity 31%～71% conditions, the basidiospore still can germinate even after 69 days. The mycelia of C.rolfsii grew normally on media with carbon source such as starch, glucose, sucrose, fructose, cellulose, maltose, lactose, sorbitol, galactose, mannose, and xylose and nitrogen source such as urea, tyrosine, ammonium nitrate, threonine, ammonium carbonate, ammonium sulfate and glutamate. The mycelia of C.rolfsii grow grew slowly on media with sorbose and ammonium carbonate . |
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| Keywords: | Hordeum vulgare Corticium rolfsii biological characteristics nutrition utilization ability |
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