Callose deposited at soybean sieve element inhibits long-distance transport of Soybean mosaic virus
文献类型： 外文期刊
作者： Zhang, Jie 1 ; Liu, Na 1 ; Yan, Aihua 1 ; Sun, Tianjie 1 ; Sun, Xizhe 1 ; Yao, Guibin 1 ; Xiao, Dongqiang 1 ; Li, Wenlong 1 ; Hou, Chunyan 1 ; Yang, Chunyan 2 ; Wang, Dongmei 1 ;
作者机构： 1.Hebei Agr Univ, State Key Lab North China Crop Improvement & Regu, Hebei Key Lab Plant Physiol & Mol Pathol, Coll Life Sci, Baoding 071001, Peoples R China
2.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Shijiazhuang 050035, Hebei, Peoples R China
关键词： Callose; Soybean mosaic virus; Grafting; Long-distance transport
期刊名称：AMB EXPRESS （ 影响因子：4.126； 五年影响因子：4.245 ）
ISSN： 2191-0855
年卷期： 2022 年 12 卷 1 期
页码：
收录情况： SCI
摘要： The function of callose and its deposition characteristics at phloem in the resistance to the long-distance transportation of Soybean mosaic virus (SMV) through phloem was studied. Two different methods of SMV inoculation were used in the study, one was direct friction of the virus on seedling leaves and the other was based on grafting scion and rootstock to create different resistance and sensitivity combinations. Veins, petioles of inoculated leaves and rootstock stems were stained with callose specific dye. Results from fluorescence microscope observation, pharmacological test, and PCR detection of SMV coat protein gene (SMV-CP) showed the role of callose in long-distance transportation of SMV through phloem during infection of soybean seedlings. When the inhibitor of callose synthesis 2-deoxy-D-glucose (2-DDG) was used, the accumulation of callose fluorescence could hardly be detected in the resistant rootstocks. These results indicate that callose deposition in phloem restricts the long-distance transport of SMV, and that the accumulation of callose in phloem is a main contributing factor for resistance to this virus in soybean.
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