枯草酶VVISBT4.19 X1在葡萄防御反应中的病原相关特异性

IF 1.1 4区 农林科学 Q4 FOOD SCIENCE & TECHNOLOGY Ciencia E Tecnica Vitivinicola Pub Date : 2020-01-01 DOI:10.1051/ctv/20203501042
J. Figueiredo, J. Cunha, J. Eiras-Dias, M. S. Silva, A. Figueiredo
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引用次数: 4

摘要

葡萄藤(Vitis vinifera L.)是世界上栽培最多的果树之一,具有很高的经济价值。白粉病和灰霉菌病分别由赤霉和灰霉菌引起,属于最具破坏性的疾病,可通过在一个生长季节使用几种杀菌剂加以控制。一种更可持续、更环保的虫害防治方法与育种计划的发展有关,即将具有天然抗性的美洲和亚洲葡萄品种与易受真菌或卵菌病原体引起的疾病的葡萄品种杂交。因此,获得了既具有良好浆果品质又具有高度抗葡萄病原菌能力的葡萄新品种。其中一个例子是葡萄品种“丽晶”,它对E. necator和Plasmopara viticola具有很高的耐受性。为了确保育种计划中持久的抗性渗入,充分了解葡萄藤的防御机制至关重要。葡萄- p的研究进展。viticola的病理系统表明丝氨酸蛋白酶参与了两种生物之间相互作用的建立,VviSBT4.19 X1就是这种情况。这种枯草酶的基因表达在Regent接种葡萄假单胞菌6小时后增加了300倍。目前,尚无关于枯草酶参与葡萄对necator e和cinerea感染的反应的资料。本研究分析了VviSBT4.19 X1在“Regent”接种E. necator和B. cinerea后第1小时的基因表达谱,以了解其对不同病原体的反应。
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Pathogen-related specificity of subtilase VVISBT4.19 X1 in the Vitis vinifera defence response
Grapevine, Vitis vinifera L., is one of the most cultivated fruit plants worldwide with high economic value. Powdery mildew and gray mold diseases, caused by Erysiphe necator and Botrytis cinerea, respectively, are within the most devastating diseases, which are controlled by using several fungicide applications over a single growing season. A more sustainable and environmentally friendly alternative for pest control is associated to the development of breeding programs, in which American and Asian Vitis species, presenting natural resistance characteristics, are crossed with V. vinifera varieties that are susceptible to diseases caused by fungal or oomycete pathogens. As a result, new grapevine varieties that combine the good berry quality with a high degree of resistance to grapevine pathogens are obtained. One example is the Vitis vinifera cv ‘Regent’ that acquired high tolerance degree against E. necator and Plasmopara viticola. To ensure durable resistance introgression in breeding programs, a full understanding of grapevine defence mechanisms is crucial. Previous studies on grapevine-P. viticola pathosystem have suggested the participation of serine proteases in the establishment of the interaction between both organisms, which is the case of VviSBT4.19 X1. The gene expression of this subtilase increases up to 300-fold 6 hours after ‘Regent’ inoculation with P. viticola. Nowadays, no information is available about the participation of subtilases in grapevine response to E. necator and B. cinerea infection. In the present study, the gene expression profile of VviSBT4.19 X1 in the first hours of ‘Regent’ inoculation with E. necator and B. cinerea was analysed to understand its response towards different pathogenic agents.
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来源期刊
Ciencia E Tecnica Vitivinicola
Ciencia E Tecnica Vitivinicola Agricultural and Biological Sciences-Food Science
自引率
12.50%
发文量
5
期刊介绍: Ciência e Técnica Vitivinícola (Journal of Viticulture and Enology) is an international journal that publishes original articles, research notes and review articles, written in Portuguese or in English, on the various fields of the science and technology of vine and wine: Viticulture, Enology and Vitivinicultural economy.
期刊最新文献
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