文献类型： 外文期刊
作者： Na, Ren 1 ; Luo, Yanjie 5 ; Bo, Haoyu 1 ; Zhang, Jian 1 ; Jia, Ruifang 1 ; Meng, Qinglin 3 ; Zhou, Hongyou 1 ; Hao, Jianj 1 ;
作者机构： 1.Inner Mongolia Agr Univ, Dept Agron, Hohhot 010018, Peoples R China
2.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Shijiazhuang 050035, Hebei, Peoples R China
3.Heilongjiang Acad Agr Sci, Inst Plant Protect, Harbin 150000, Heilongjiang, Peoples R China
4.Univ Maine, Sch Food & Agr, Orono, ME 04469 USA
5.Agr & Agri Food Canada, London, ON N5V 4T3, Canada
关键词： Biochemical activity; Resistant mechanism; Sunflower; Sclerotinia sclerotiorum
期刊名称：PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY （ 影响因子：2.747； 五年影响因子：2.388 ）
ISSN： 0885-5765
年卷期： 2018 年 102 卷
页码：
收录情况： SCI
摘要： Sunflower (Helianthus annuus) can be infected by the fungal pathogen Sclerotinia sclerotiorum, but its susceptibility varies depending on the cultivars. The aim of this study was to characterize and compare the biochemical responses between the R and the S sunflower cultivars after inoculation with S. sclerotiorum. The biochemical activities were detected by measuring necrotic cell, callose deposition, soluble protein content, as well as ROS accumulation at the infection site. Antioxidant enzymatic activities, the transcripts of ROS related genes and marker genes in pathways of salicylic acid (SA) and jasmonic acid (JA) were also quantified to characterize the responses. Results showed that compared to the S cultivar, the R cultivar was characterized having reduced number of necrotic cell, more callose deposition on the cell wall, increased soluble protein content, higher levels of H2O2 and ROS scavenger enzyme activities, and upregulated transcript profile of marker genes of both SA and JA pathways. (C) 2017 Elsevier Ltd. All rights reserved.
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