中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 氮源对杜鹃花茵根真菌氮吸收及硝酸还原酶活性的影响 南京林业大学学报(自然科学版) 2014,38 (1) 175-178
Position: Home > Articles > Effects of different nitrogen sources on the nitrogen uptake and nitrate  reductase activities of ericoid mycorrhizal fungi Journal of Nanjing Forestry University(Natural Sciences Edition) 2014,38 (1) 175-178

氮源对杜鹃花茵根真菌氮吸收及硝酸还原酶活性的影响

作  者：
孙秋玲;张春英;戴思兰
关键词：
杜鹃花类菌根;氮源;氮吸收;硝酸还原酶
摘  要：
采用菌丝干重法、半微量凯氏定氮法和磺胺比色法分别测定了HDl9、ZTl3和D13个树粉孢属杜鹃花菌根真菌菌株在铵态氮、硝态氮和有机氮培养基中的生物量、含氮量和硝酸还原酶活性.结果表明:3个菌株在3种氮源培养基中生长良好,而且无机氮培养基中菌株生物量和氮吸收量均显著高于有机氮培养基;其中菌株HDl9在硝态氮培养基中氮吸收量显著高于铵态氮,而菌株ZTl3和D1在铵态氮培养基中氮吸收量较高;菌株在硝态氮培养基中硝酸还原酶活性均较高,说明树粉孢属杜鹃花菌根真菌不仅具有较好的利用硝态氮的能力,还可以吸收利用其他形态的氮源,外源硝态氮可以诱导该类真菌硝酸还原酶活性的提高.
译  名：
Effects of different nitrogen sources on the nitrogen uptake and nitrate  reductase activities of ericoid mycorrhizal fungi
关键词：
ericoid mycorrhiza fungi%nitrogen source%nitrogen uptake%nitrate reductase
摘  要：
In order to analyse the effects of nitrogen on the nitrogen uptake and nitrate reductase activities of ericoid my- corrhizal fungus, this study determined the mycelial biomass, nitrogen uptake and nitrate reduetase activities of three strains of Oidiodendron sp.cultured on ammonium, nitrate and organic nitrogen medium respectively. The resuhs showed that the three strains grew well in different nitrogen source medium, and the strain biomass and nitrogen uptake in inor- ganic nitrogen medium were significantly higher than that in organic nitrogen medium. The nitrogen uptake by HD19 in nitrate nitrogen medium was significantly greater than that in ammonium nitrogen medium, while the strain ZT13 and D1 had the opposite result. Nitrate reductase activities of the two strains were higher in nitrate nitrogen medium than other nitrogen source. This illustrated that the ericoid mycorrhizal fungi (Oidiodendron sp.) had the ability to utilize different nitrogen source. In all these nitrogen, the nitrate was a good one for ERM fungi growth, and it can also induce nitrate re- ductase activities of the ERM fungi.

相似文章

导出引用
计量
文章访问数: 31
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46