کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6362790 | 1315696 | 2010 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adaptation to high light irradiances enhances the photosynthetic Cu2+ resistance in Cu2+ tolerant and non-tolerant populations of the brown macroalgae Fucus serratus
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
اقیانوس شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Adaptation to high light irradiances enhances the photosynthetic Cu2+ resistance in Cu2+ tolerant and non-tolerant populations of the brown macroalgae Fucus serratus Adaptation to high light irradiances enhances the photosynthetic Cu2+ resistance in Cu2+ tolerant and non-tolerant populations of the brown macroalgae Fucus serratus](/preview/png/6362790.png)
چکیده انگلیسی
The relationship between light acclimation and Cu2+ tolerance was studied in two populations of Fucus serratus known to be naturally non-tolerant and tolerant to Cu2+. Acclimation to high irradiances increased the photosynthetic tolerance to Cu2+. The xanthophyll cycle was apparently not involved in protecting the photosynthetic apparatus against Cu2+ toxicity, as results showed that Cu2+ did not induce dynamic photoinhibition. The higher photosynthetic Cu2+ resistance of high light algae did not result in increased growth. The excess energy acquired by high light-adapted algae appeared to be utilized in Cu2+ defense mechanisms in the Cu2+ non-tolerant population. The polyphenol content of the algae was reciprocal to the CuT content, suggesting that polyphenol may be the primary Cu2+ defense of non-tolerant low light algae, acting through secretion and extracellular chelating of Cu2+, while the compounds do not seem to be involved in the primary Cu2+ tolerance mechanism in Cu2+ tolerant algae.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 60, Issue 5, May 2010, Pages 710-717
Journal: Marine Pollution Bulletin - Volume 60, Issue 5, May 2010, Pages 710-717
نویسندگان
Hanne Dalsgaard Nielsen, Søren Laurentius Nielsen,