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Efficiency of chemotherapy combined with thermotherapy for eliminating grapevine leafroll-associated virus 3 (GLRaV-3)
Scientia Horticulturae ( IF 3.9 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.scienta.2020.109462
Guojun Hu , Yafeng Dong , Zunping Zhang , Xudong Fan , Fang Ren

Abstract Grapevine leafroll-associated virus 3 (GLRaV-3) is distributed in all grapevine-growing regions worldwide, resulting in significant economic losses. In this study, ribavirin (15 and 25 μg/mL, R15 and R25), high temperature (37 °C, T), and a combined treatment (R15 + T and R25 + T) were used to eliminate the virus from in vitro GLRaV-3-infected Vitis champini plantlets. The phytotoxicity of ribavirin on plantlets was found in R15 and R25 lasted 30 days, but the damage of high temperature on grapevine plantlets was found in T, R15 + T and R25 + T at the beginning of treatment. Moreover, high temperature could enhance the growth of grapevine plantlets. The survival rate was lowest for the regenerated T plants (23.3%). In contrast, the survival rates for the regenerated plants that underwent the chemotherapy (R15 and R25) and the combined treatment (R15 + T and R25 + T) were 47.0% (31/66) and 41.0% (50/122), respectively. Reverse transcription polymerase chain reaction and quantitative real-time PCR assays were used to evaluate the efficiency of the GLRaV-3 elimination in the regenerated grapevine plants. The combined treatment was most effective for eliminating GLRaV-3. Specifically, GLRaV-3 was detected in all regenerated plants after the 40-day R15 and R25 treatments, whereas the virus elimination rates for the 20-day R15 + T and R25 + T treatments exceeded 80%. Additionally, the virus elimination rate for the regenerated T plants was 42.9% for the same treatment periods.

中文翻译:

化疗联合热疗消除葡萄卷叶相关病毒3(GLRaV-3)的效果

摘要 葡萄卷叶相关病毒3(GLRaV-3)广泛分布于全球所有葡萄产区,造成重大经济损失。在本研究中,利巴韦林(15 和 25 μg/mL,R15 和 R25)、高温(37 °C,T)和联合治疗(R15 + T 和 R25 + T)用于从体外消除病毒受 GLRaV-3 感染的香槟葡萄苗。利巴韦林对R15和R25植株的药害作用持续30天,但在处理开始时,T、R15+T和R25+T对葡萄植株的毒害作用主要集中在T、R15+T和R25+T。此外,高温可以促进葡萄苗的生长。再生T植物的存活率最低(23.3%)。相比之下,接受化疗(R15和R25)和联合处理(R15+T和R25+T)的再生植株存活率分别为47.0%(31/66)和41.0%(50/122)。逆转录聚合酶链反应和定量实时 PCR 测定用于评估再生葡萄树植物中 GLRaV-3 消除的效率。联合治疗对消除 GLRaV-3 最有效。具体而言,在 R15 和 R25 处理 40 天后,所有再生植物中均检测到 GLRaV-3,而 R15 + T 和 R25 + T 处理 20 天的病毒消除率超过 80%。此外,相同处理期的再生 T 植物的病毒消除率为 42.9%。逆转录聚合酶链反应和定量实时 PCR 测定用于评估再生葡萄树植物中 GLRaV-3 消除的效率。联合治疗对消除 GLRaV-3 最有效。具体而言,在 R15 和 R25 处理 40 天后,所有再生植物中均检测到 GLRaV-3,而 R15 + T 和 R25 + T 处理 20 天的病毒消除率超过 80%。此外,相同处理期的再生 T 植物的病毒消除率为 42.9%。逆转录聚合酶链反应和定量实时 PCR 测定用于评估再生葡萄树植物中 GLRaV-3 消除的效率。联合治疗对消除 GLRaV-3 最有效。具体而言,在 R15 和 R25 处理 40 天后,所有再生植物中均检测到 GLRaV-3,而 R15 + T 和 R25 + T 处理 20 天的病毒消除率超过 80%。此外,相同处理期的再生 T 植物的病毒消除率为 42.9%。R15和R25处理40天后,所有再生植株均检测到GLRaV-3,而R15+T和R25+T处理20天的病毒清除率超过80%。此外,相同处理期的再生 T 植物的病毒消除率为 42.9%。R15和R25处理40天后,所有再生植株均检测到GLRaV-3,而R15+T和R25+T处理20天的病毒清除率超过80%。此外,相同处理期的再生 T 植物的病毒消除率为 42.9%。
更新日期:2020-09-01
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