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| 根结线虫对黄瓜植株根、茎水势相关特性的影响 | |
| 引用本文： | 许华,蒋梦娇,魏宇昆.根结线虫对黄瓜植株根、茎水势相关特性的影响[J].中国农学通报,2011,27(27):308-311. |
| 作者姓名： | 许华 蒋梦娇 魏宇昆 |
| 作者单位： | 1. 北京师范大学珠海分校工程技术学院,广东珠海,519085 2. 中科院上海辰山植物科学研究中心,上海,201602 |
| 基金项目： | 国家“十一五”科技支撑项目（2006BAD07B03）和国家自然科学基金项目（30870415） |
| 摘 要： | 为探究黄瓜植株感染根结线虫后水分亏缺的原因，通过人工接种的方法研究根结线虫对黄瓜植株根、茎水势相关特性的影响。结果表明：根结线虫侵染黄瓜植株后导致植株根、茎水势和茎粗降低；根、茎可溶性蛋白和茎可溶性糖含量在接种量为6000个/株时显著增加；根系活力在接种量为2000个/株时有所升高，之后随着接种量的增加逐渐降低。茎水势仅与茎粗和根系活力显著相关，然而，除根可溶性糖外，其他所有指标均与根水势显著相关。黄瓜植株感染根结线虫后，根系活力、茎粗的降低和根系过度的渗透调节是根、茎水分亏缺的主要原因。 |
| 关 键 词： | 壳聚糖 壳聚糖 镉 罗非鱼 急性毒性 |
| 收稿时间： | 7/7/2011 12:00:00 AM |
| 修稿时间： | 2011/9/13 0:00:00 |
Effects of Root-knot Nematodes on the Related Characters of Water Potential in the Root and Shoot of Cucumber Plant |
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| Xu Hua,Jiang Mengjiao,Wei Yukun.Effects of Root-knot Nematodes on the Related Characters of Water Potential in the Root and Shoot of Cucumber Plant[J].Chinese Agricultural Science Bulletin,2011,27(27):308-311. | |
| Authors: | Xu Hua Jiang Mengjiao Wei Yukun |
| Institution: | Xu Hua 1,Jiang Mengjiao 1,Wei Yukun 2 (1 College of Engineering Technology,Beijing Normal University Zhuhai Campus,Zhuhai Guangdong 519085,2 Shanghai Chenshan Plant Science Research Center,Chinese Academy of Sciences,Shanghai 201602) |
| Abstract: | To explore the reasons of cucumber plant infected with root-knot nematodes (RKNs),the effects of RKNs on the related characters of water potentials in the root and shoot of cucumber plant were studied through artificial inoculation.The results showed that after RKNs infection,water potential in the root and shoot as well as shoot diameter of cucumber plant decreased.Soluble protein content in the root and shoot,as well as soluble sugar content in the shoot all rose significantly when inoculation rate was 60... |
| Keywords: | root-knot nematode cucumber water potential root activities osmotic regulation |
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