您好，欢迎访问山东省农业科学院文献资源数据库平台

Use of Lentinan To Control Sharp Eyespot of Wheat, and the Mechanism Involved

文献类型： 外文期刊

作者： Zhang, Zhongxiao 1 ; Wang, Hongyan 1 ; Wang, Kaiyun 1 ; Jiang, Lili 2 ; Wang, Dong 2 ;

作者机构： 1.Shandong Agr Univ, Dept Plant Protect, Tai An 271018, Shandong, Peoples R China

2.Shandong Agr Univ, Dept Agron, Tai An 271018, Shandong, Peoples R China

3.Shandong Acad Agr Sci, Shandong Inst Pomol, Tai An 271000, Shandong, Peoples R China

4.Shandong Acad Agr Sci, Cotton Res Ctr, Jinan 250100, Shandong, Peoples R China

关键词： wheat sharp eyespot; lentinan; seed treatment; induced resistance

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

ISSN： 0021-8561

年卷期： 2017 年 65 卷 50 期

页码：

收录情况： SCI

摘要： Lentinan (LNT), a complex polysaccharide with a-beta(1 -> 3)-linked backbone of D-glucose residues, has been reported to inhibit plant diseases. Our objective was to explore the efficacy and action mechanism of LNT used as a seed dressing to control sharp eyespot of wheat. Seed dressing promoted wheat growth. At control germination rates of 50%, 8g of LNT/100 kg of seeds of the Jimai 22, Shannong 23, and Luyuan 502 cultivars significantly increased seed germination to 54%, 52%, and 51%, respectively. Seven days after emergence, the heights and root activity - of wheat treated with LNT were significantly greater than those of controls. These effects were dose-dependent. At this time, the plant heights of Jimai 22, Shannong 23, and Luyuan 502 cultivars were 9.52, 8.52, and 10.52 cm, respectively, significantly higher than that of the controls. LNT prevented the developmet of wheat sharp eyespot. In the highly susceptible Jimai 22 cultivar, sharp eyespot development was reduced by 33.7%, 31.9%, and 30.4% at 7, 14, and 21 days after germination.J.NT some what increased' phenylalanine ammonia-lyase, peroxidase, and superoxide dismutase activity; reduced the malondialdehyde Content; increased chlorophyll a and b levels; and , enhanced the root vigor of wheat: The effects peaked 7 days after gerniination. LNT increased transcription of the genes encoding alternative oxidase '(AOX) and beta-1,3-glucanase (GLU), the salicylic acid signaling pathway-related gene NbPR1a, and the sharp eyeSpot resistance-related gene RS33. A significant dose-effect relationship was evident in terms of AOX transcription; We thus speculate that AOX may be the target gene.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：山东省农业科学院文献资源数据库平台

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台