Control of Enzymatic Browning in Potato (Solanum tuberosum L.) by Sense and Antisense RNA from Tomato Polyphenol Oxidase

摘要: Polyphenol oxidase (PPO) activity of Russet Burbank potato was inhibited by sense and antisense PPO RNAs expressed from a tomato cDNA under the control 35S promoter cauliflower mosaic virus. Transgenic plants 37 different lines were grown in field. level enzymatic browning measured tubers harvested Of 28 transgenic that sampled, 5 exhibited reduced browning. The correlated with reduction these lines. These results indicate expression RNA or orientation inhibits major commercial cultivar. Expression led to greatest decrease browning, possibly due cosuppression. suggest closely related heterologous genes can be used prevent wide variety food crops without application various additives.