中文摘要：番茄黄化曲叶病毒（TYLCV）是最为有名的番茄感染的菜豆金色花叶病毒属病毒之一，由烟粉虱传播。先前已有报道有些RNA病毒由种子传播，但是尚未有TYLCV是种传病毒的报道。本研究于2013-2014年开展的实验发现，在没有烟粉虱作为病毒传播介体时，可在幼嫩番茄植株上检测到TYLCV，而这些幼嫩的番茄植株是由先前栽培的感染了TYLCV的番茄植株上掉落下来的番茄果实发芽、生长而来。此外，在因带毒烟粉虱介导传播和农杆菌接种法而感染了TYLCV的番茄植株种子及幼苗上也能检测到TYLCV-IL。研究结果表明，TYLCV-IL可经种子传播，由感染了TYLCV的种子发芽而来的番茄植株可作为TYLCV的接种源。本研究是关于番茄TYLCV可种传的首次报道。
外文摘要：Tomato yellow leaf curl virus (TYLCV) is one of the most well-known tomato-infecting begomoviruses and transmitted by Bemisia tabaci. Seed transmission has previously been reported for some RNA viruses, but TYLCV has not previously been described as a seed-borne virus. In 2013 and 2014, without whitefly-mediated transmission, TYLCV was detected in young tomato plants germinated from fallen fruits produced from TYLCV-infected tomato plants in the previous cultivation season. In addition, TYLCV-Israel (TYLCV-IL) was also detected in seeds and their seedlings of TYLCV-infected tomato plants that were infected by both viruliferous whitefly-mediated transmission and agro-inoculation. The seed infectivity was 20-100%, respectively, and the average transmission rate to seedlings was also 84.62% and 80.77%, respectively. TYLCV-tolerant tomatoes also produced TYLCV-infected seeds, but the amount of viral genome was less than seen in TYLCV-susceptible tomato plants. When tomato plants germinated from TYLCV-infected seeds, non-viruliferous whiteflies and healthy tomato plants were placed in an insect cage together, TYLCV was detected from whiteflies as well as receiver tomato plants six weeks later. Taken together, TYLCV-IL can be transmitted via seeds, and tomato plants germinated from TYLCV-infected seeds can be an inoculum source of TYLCV. This is the first report about TYLCV seed transmission in tomato.
 
作者：Kil, Eui-Joon；Kim, Sunhoo；Lee, Ye-Ji；等
作者单位：Sungkyunkwan Univ
期刊名称：SCIENTIFIC REPORTS
期刊影响因子：5.228
出版年份：2016
出版刊次：1
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