Abstract Wound healing ability of potato tubers depends on cultivar. However, there are few researches on the wound healing dynamics of different potato cultivars and reports at biochemical and cellular level. In this study, the healing ability among four major potato cultivars, ‘Atlantic’, ‘Shepody’, ‘Desiree’ and ‘Favorite’ is compared after wounding the tubers artificially. The results indicated that during healing the wounded tubers ‘Atlantic’ had the lowest weight loss and disease index, compared with ‘Shepody’, ‘Desiree’ and ‘Favorita’ which was the highest. ‘Atlantic’ also had the largest accumulation of suberin poly phenolic and lignin at wounded sites of tubers during healing, followed by ‘Shepody’ and ‘Desiree’, and accumulation of ‘Favorita’ was the least. Moreover, ‘Atlantic’ had the highest phenylalanine ammonialyase and peroxidase activities, total phenols, flavonoid and lignin contents, and ABTS+ scavenging ability in the tissue of wound sites during healing, followed by ‘Shepody’, ‘Desiree’ and ‘Favorita’. It is suggested that wound healing ability of potato tubers of different cultivar is strongly affected by the activation of phenylpropanoid metabolism and peroxidase.

中文翻译：

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我国四种主要马铃薯块茎品种创面愈合能力比较

摘要 马铃薯块茎的伤口愈合能力取决于品种。然而，关于不同马铃薯品种伤口愈合动力学的研究以及生化和细胞水平的报道很少。在这项研究中，比较了四种主要马铃薯品种“大西洋”、“Shepody”、“Desiree”和“Favorite”在对块茎进行人工损伤后的愈合能力。结果表明，在愈合过程中，受伤的块茎“大西洋”的体重减轻和疾病指数最低，而“Shepody”、“Desiree”和“Favorita”则最高。'Atlantic' 在愈合过程中块茎受伤部位的木栓质多酚和木质素积累量也最大，其次是 'Shepody' 和 'Desiree'，'Favorita' 的积累最少。而且，'Atlantic' 在愈合过程中伤口部位组织中苯丙氨酸解氨酶和过氧化物酶活性、总酚、类黄酮和木质素含量以及 ABTS+ 清除能力最高，其次是 'Shepody'、'Desiree' 和 'Favorita'。提示不同品种马铃薯块茎的创面愈合能力受苯丙烷代谢和过氧化物酶激活的强烈影响。