کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8875184 | 1623297 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Impact of UV-B radiation on some biochemical changes and growth parameters in Echinacea purpurea callus and suspension culture
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم کشاورزی و بیولوژیک (عمومی)
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چکیده انگلیسی
The effects of UV-B light force, exposure time and incubation period on producing caffeic acid derivatives and growth parameters in Echinacea purpurea callus and suspension culture were assessed. UV-B led to an increment of all growth parameters and antioxidant activity in callus and cell suspension and caffeic acid derivatives in cell suspension by increasing incubation period. The reverse was true for G-POD activity in cell suspension and PAL activity in both types of cultures. Incubation period 2 weeks was more effective in caffeic acid, total phenols and G-POD activity in callus cells and incubation period one week only for total phenols in cell suspension. The two exposure times 2 and 4Â h increased antioxidant activity in the two types of cultures. Exposure time 2Â h led to increase caffeic acid and total phenols in callus cells. The maximum increase in caffeic acid, total phenols and PAL activity in cell suspension was achieved by 4Â h exposure time. Likewise, using 2 UV-B lamps for 2Â h was the most effective in creating more biochemical components than the other treatments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Agricultural Sciences - Volume 61, Issue 2, December 2016, Pages 207-216
Journal: Annals of Agricultural Sciences - Volume 61, Issue 2, December 2016, Pages 207-216
نویسندگان
Hossam H. Manaf, Kawthar A.E. Rabie, Mona S. Abd El-Aal,