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Exogenous application of salicylic acid improves eradication of apple stem grooving virus and apple chlorotic leaf spot virus in apple

文献类型： 外文期刊

作者： Ma, Xiao-Yan 1 ; Li, Jin-Wei 2 ; Li, Qing 2 ; Yan, Zi-Han 2 ; Cheng, Xi 2 ; Wang, Min-Rui 3 ; Hamborg, Zhibo 4 ; Bao, Lu 2 ; Zhang, Dong 2 ; Li, Min-Ji 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Forestry & Pomol, Beijing 100093, Peoples R China

2.Northwest A&F Univ, Coll Hort, Ctr Natl Ctr Apple Improvement, State Key Lab Yangling Sub, Yangling 712100, Shaanxi, Peoples R China

3.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, Danzhou 571737, Hainan, Peoples R China

4.Norwegian Inst Bioecon Res, Div Biotechnol & Plant Hlth, Hogskoleveien, N-1433 As, Norway

关键词： Viral diseases; Thermotherapy; Cryotherapy; Shoot tip culture

期刊名称：PLANT CELL TISSUE AND ORGAN CULTURE （ 影响因子：3.0； 五年影响因子：3.0 ）

ISSN： 0167-6857

年卷期： 2024 年 157 卷 3 期

页码：

收录情况： SCI

摘要： The presence of viral diseases poses a significant challenge to the high-quality, efficient, and sustainable production of apples. Virus eradication and the use of virus-free plants are currently the most crucial method for preventing viral diseases. Among the viruses affecting apples, apple stem grooving virus (ASGV) and apple chlorotic leaf spot virus (ACLSV) present particular challenges in efficient eradication from apples. This study investigated the effects of exogenous salicylic acid (SA) treatment on the efficient eradication of ASGV and ACLSV from apple cultivar 'Yanfu 8'. Shoots were excised from in vitro 4-week-old stock and cultured in shoot proliferation medium supplemented with 10 mu M SA combining thermotherapy with shoot tip culture or cryotherapy for ASGV and ACLSV eradication. The results showed that including of 10 mu M SA in thermotherapy significantly reduced the concentrations of ASGV and ACLSV by 33% and 14% in shoots compared to thermotherapy without SA. SA treatment also improved the shoot tips survival and regrowth after combining 2 or 4 weeks of thermotherapy followed by shoot tip culture or shoot tip cryotherapy, while maintaining the higher (75-100%) of virus eradication efficiencies. Therefore, the application of SA in combination with thermotherapy followed or not by cryotherapy proves to be a promising approach for enhancing the efficiency of virus eradication in apple.

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