کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1190087 | 963525 | 2010 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effect of grape genotype and tissue type on callus growth and production of resveratrols and their piceids after UV-C irradiation Effect of grape genotype and tissue type on callus growth and production of resveratrols and their piceids after UV-C irradiation](/preview/png/1190087.png)
Grape calli systems were used to study the relationships between stilbene production and: (1) four grape genotypes, (2) leaf, berry exocarp and seed tissues and (3) UV-C irradiation. All explants could be de-differentiated. However, subsequent callus growth depended mainly on genotype and tissue type. Non-embryogenic callus accumulated more resveratrols and piceids and had a higher growth index than pro-embryogenic and embryogenic calli. UV-C irradiation for 20 min was most efficient in promoting both the accumulation of resveratrols and piceids and callus growth index. There was dynamic production of resveratrols and piceids in UV-C-irradiated leaf-derived calli over a 72 h period, with optimum harvest time for the highest total stilbene content at 48 h. Accumulation of stilbenes in UV-C-irradiated calli depended upon genetic background and tissue type, with higher stilbene contents in two interspecific root stocks and leaf or exocarp explants.
Journal: Food Chemistry - Volume 122, Issue 3, 1 October 2010, Pages 475–481