Department of Biochemistry, Rothamsted Experimental Station, Harpenden, Herts, UK.
Plant Mol Biol. 1983 Nov;2(6):317-20. doi: 10.1007/BF01578593.
Large amounts of pathogenesis-related (PR) proteins were found inNicotiana tabacum crown gall tissue, following transformation of normal tobacco cells withAgrobacterium tumefaciens. In contrast, PR proteins were not detected in leaves of grafted plants that had been recovered from crown gall tissue even though these plants were still transformed as shown by their inability to form roots and ability to produce octopine. No difference was observed in susceptibility to virus infection between untransformed and transformed plants grafted onto identical rootstocks. The results are discussed in relation to physiological factors controlling PR protein induction and virus resistance.
在将正常烟草细胞用根癌农杆菌转化后，烟草冠瘿组织中发现了大量与发病机理相关（PR）的蛋白质。相比之下，即使在已从冠瘿组织中恢复的嫁接植株的叶片中也未检测到 PR 蛋白，但这些植株仍然被转化，因为它们无法形成根且能够产生章鱼碱。在接种到相同砧木上的未转化和转化植株之间，对病毒感染的敏感性没有差异。该结果与控制 PR 蛋白诱导和病毒抗性的生理因素有关。
