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WHEAT STRIPE RUST AND INTEGRATION OF SUSTAINABLE CONTROL STRATEGIES IN CHINA
《农业科学与工程前沿(英文)》 2022年 第9卷 第1期 页码 37-51 doi: 10.15302/J-FASE-2021405
Stripe (yellow) rust caused by Puccinia striiformis f. sp. tritici occurs in almost all wheat-producing regions of the world. Severe countrywide epidemics in China have caused substantial yield losses. Growing resistant cultivars is the best strategy to control this disease but the pathogen can overcome resistance in wheat cultivars. The high variation in the virulence of the pathogen combined with the large areas of susceptible wheat cultivars enables the pathogen population to increase rapidly and disperse over long distances under favorable environmental conditions, resulting in severe pandemics within cropping seasons. Current stripe rust control measures are based on many years of research including the underlying epidemiology regarding year-to-year survival of the pathogen, pathways of pathogen dispersal within seasons and years, the role of P. striiformis sexual hybridization, the use of resistance sources in breeding programs, and year-round surveillance of national wheat crops that are present in different parts of the country throughout the year. All these strategies depend on accurate prediction of epidemics, more precise use of fungicides to meet national requirements and better deployment of resistance genes. New ideas with potential application in sustainable protection of stripe rust include negative regulatory gene editing, resistance gene overexpression and biological control based on microbiomes.
关键词: sustainable disease control / integrated control Puccinia striiformis / Triticum aestivum
Cytochrome P450 monooxygenase specific activity reduction in wheat
Kangxin HE,Qixing ZHOU
《环境科学与工程前沿(英文)》 2016年 第10卷 第2期 页码 270-275 doi: 10.1007/s11783-015-0813-y
关键词: roxithromycin toxic effect cytochrome P450 monooxygenase soil environment Triticum aestivum biomarker
Wenshuang LI,Shengnan ZHAI,Hui JIN,Weie WEN,Jindong LIU,Xianchun XIA,Zhonghu HE
《农业科学与工程前沿(英文)》 2016年 第3卷 第2期 页码 124-130 doi: 10.15302/J-FASE-2016094
Sridhar BHAVANI, David P. HODSON, Julio HUERTA-ESPINO, Mandeep S. RANDHAWA, Ravi P. SINGH
《农业科学与工程前沿(英文)》 2019年 第6卷 第3期 页码 210-224 doi: 10.15302/J-FASE-2019268
Races belonging to the Ug99 (TTKSK) lineage of the wheat stem rust fungus, carrying complex virulence combinations, and their migration to countries in Africa, Middle East and Asia continue to pose a significant threat to global wheat production. The rapid spread of additional races, e.g., TKTTF or the Digalu lineage, in several countries causing localized epidemics reminds us of the vulnerability of wheat germplasm to stem rust disease, a formidable foe referenced as early as biblical times. A global rust monitoring system reflecting increased surveillance efforts has identified 13 races within the Ug99 lineage in 13 countries and unrelated lineages are emerging, spreading and posing serious threats to wheat production. Race TKTTF has caused localized epidemics in Ethiopia and its variants have been recently implicated in stem rust outbreaks in Europe. Concerted research efforts have resulted in the identification of several new resistance (APR) genes and gene combinations for use in breeding. Combining multiple adult plant resistance genes in high-yielding backgrounds and discovery of new quantitative trait loci conferring stem rust resistance has progressed in the recent years, enhancing the durability of resistance. Effective gene stewardship and new generation breeding materials and cultivars that combine multiple race-specific or minor to intermediate effect APR genes, complemented by active surveillance and monitoring, have helped to limit major epidemics and increase grain yield potential in key target environments.
关键词: adult plant resistance black rust race-specific resistance Triticum aestivum
小麦- 偃麦草远缘杂交选育多年生小麦述评 Review
崔磊,任永康,Timothy D. Murray,闫文泽,郭庆,牛瑜琦,孙玉,李洪杰
《工程(英文)》 2018年 第4卷 第4期 页码 507-513 doi: 10.1016/j.eng.2018.07.003
偃麦草属植物(Thinopyrum spp.)是小麦(Triticum aestivum L.)的近缘植物,具有多年生生长习性,并且抗多种生物胁迫和非生物胁迫,
利用基因组特异性引物和Cas12a介导技术快速检测稻瘟菌小麦致病型 Article
康厚祥, 彭烨, Kangyu Hua, 邓雨飞, Maria Bellizzi, Dipali Rani Gupta, Nur Uddin Mahmud, Alfredo S. Urashima, Sanjoy Kumar Paul, Gary Peterson, 周益林, 周雪平, Md Tofazzal Islam, 王国梁
《工程(英文)》 2021年 第7卷 第9期 页码 1326-1335 doi: 10.1016/j.eng.2020.07.016
麦瘟病由稻瘟菌小麦致病型(MoT)引起,是一种存在于南美洲和孟加拉国的毁灭性病害。由于MoT通常不会在抽穗期之前使小麦显现染病症状,但在抽穗期其侵染会一直加剧,因此仅根据肉眼观察来使用杀菌剂是无效的。为了开发一种在苗期和营养期准确、灵敏检测MoT以控制病害蔓延的方法,我们对来自巴西的两个MoT分离株的基因组进行了测序,并确定了两个DNA片段:MoT-6098 和MoT-6099,它们存在于麦瘟病菌(MoT)基因组中,但不存在于感染稻瘟病菌(MoO)的水稻基因组中。利用聚合酶链反应(PCR),我们在来自南美洲和孟加拉国的53 株MoT和MoO分离株中证实了这两对标记引物的特异性。为了测试这两对标记引物的有效性,我们首先建立了一种环介导等温扩增(LAMP)方法。在等温条件下,这种方法在不使用常规PCR仪器的情况下也能检测MoT。随后,我们使用Cas12a 蛋白及导向RNA(gRNA)靶向MoT-6098 和MoT-6099 序列,两个靶标被识别后,均能激活Cas12a 非特异切割单链脱氧核糖核酸酶(ssDNAase)的活性,我们将依赖靶向Cas12a 激活ssDNase 活性,同时将重组酶聚合酶扩增(RPA)和核酸侧流免疫分析法(NALFIA)相结合,开发出一种准确、灵敏且经济高效地检测受感染小麦植株中MoT特异性DNA序列的方法。这种新技术可应用于田间麦瘟病和其他重要植物病害的快速检测。
标题 作者 时间 类型 操作
Genetic variation of carotenoids in Chinese bread wheat cultivars and the effect of the 1BL.1RS translocation
Wenshuang LI,Shengnan ZHAI,Hui JIN,Weie WEN,Jindong LIU,Xianchun XIA,Zhonghu HE
期刊论文
Progress in breeding for resistance to Ug99 and other races of the stem rust fungus in CIMMYT wheat germplasm
Sridhar BHAVANI, David P. HODSON, Julio HUERTA-ESPINO, Mandeep S. RANDHAWA, Ravi P. SINGH
期刊论文