کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5518112 | 1543865 | 2017 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chrysanthemum morphology, photosynthetic efficiency and antioxidant capacity are differentially modified by light quality
ترجمه فارسی عنوان
مورفولوژی گل رز، عملکرد فتوسنتزی و ظرفیت آنتی اکسیدان با کیفیت نور تغییر می کند
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کلمات کلیدی
PPFDChlΦPSIINPQquantum yield of photosystem II electron transportFv/Fm - Fv / FmHydrogen peroxide - آب اکسیژنهChlorophyll - سبزینه یا کلروفیلphotosynthetic photon flux density - فتوسنتز تراکم شار فوتونFlavonoids - فلاونوئیدهاChlorophyll fluorescence - فلورسانس کلروفیلBlue light - نور آبیProline - پرولینRed light - چراغ قرمز
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
چکیده انگلیسی
The effect of light quality on leaf morphology, photosynthetic efficiency and antioxidant capacity of leaves that fully developed under a specific spectrum was investigated in Chrysanthemum cv. Four light treatments were applied at 100 μmol mâ2 sâ1 and a photoperiod of 14 h using light-emitting diodes, which were 100% red (R), 100% blue (B), 75% red with 25% blue (RB) and white (W), respectively. Intraspecific variation was investigated by studying the response of eight cultivars. Overall, red light significantly decreased the leaf area while the thinnest leaves were observed for W. Chlorophyll content and Chl a/b ratio was highest for W and lowest under R. B and RB resulted in the highest maximum quantum yield (Fv/Fm) and quantum efficiency (ΦPSII). A negative correlation between heat dissipation (NPQ) and ΦPSII was found. Blue light induced the highest hydrogen peroxide content, which is a proxy for total ROS generation, followed by W and RB while low contents were found under R. The antioxidative response was not always correlated with hydrogen content and differed depending on the light quality treatment. Blue light enhanced the proline levels, while carotenoids, total flavonoid and phenolic compounds were higher under W. Intraspecific variation in the responses were observed for most parameters with exception of leaf thickness; this intraspecific variation was most pronounced for total phenolic and flavonoid compounds.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Plant Physiology - Volume 213, June 2017, Pages 66-74
Journal: Journal of Plant Physiology - Volume 213, June 2017, Pages 66-74
نویسندگان
Liang Zheng, Marie-Christine Van Labeke,