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马铃薯X病毒(Potato virus X,PVX)又称马铃薯潜隐病毒(Potato latent virus)或马铃薯轻花叶病毒(Potato mild mosaic virus),是马铃薯X病毒属(Potexvirus)的模式成员,遍布于全世界马铃薯种植区。受侵染叶片呈花叶症状,田间常与其他病毒混合感染导致马铃薯的毁灭性减产。其病毒粒子为易弯曲的杆状颗粒,大小约为 相似文献
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Isolation and functional analysis of a strong specific promoter in photosynthetic tissues 总被引:2,自引:0,他引:2
Constitutive promoters such as CaMV (cauliflower mosaic virus) 35S and nos (nopaline syn-thase) have been used extremely as useful tools in many plant transgenic researches. Because of lacking temporal and spatial regulation, constitutive promoters have a number of potential drawbacks in genetically improved crops[1]. For example, constitutive expression of viral capsid proteins in plants may increase the risk of transvapsidation or viral recombination to generate new strains of phytopathogen… 相似文献
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