PHOTOPROTECTION MECHANISMS IN WHEAT PLANTS UNDER HIGH LIGHT AND COLD TEMPERATURE CONDITIONS

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HABIBI GHADER; SERVATIAN NASRIN; ABEDINI MASUMEH

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Journal: Journal of Plant Biological Sciences Year:2017 | Volume:9 | Issue:31 Page(s): 59-72

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Information Journal Paper

Title

PHOTOPROTECTION MECHANISMS IN WHEAT PLANTS UNDER HIGH LIGHT AND COLD TEMPERATURE CONDITIONS

Author(s)

HABIBI GHADER | SERVATIAN NASRIN | ABEDINI MASUMEH | Issue Writer Certificate

Keywords

PHOTODAMAGEQ1

PHOTOPROTECTIONQ1

MAXIMAL QUANTUM YIELD OF PHOTOSYSTEM IIQ1

COLD STRESSQ2

ROS SCAVENGING SYSTEMQ1

Abstract

High light damages photosynthetic machinery, primarily photosystem II (PSII), and causes photoinhibition that can limit plant photosynthetic activity, growth and productivity. To address this issue, we investigated the basic PHOTOPROTECTION mechanisms including ROS scavenging activity and phenolic compounds production in wheat (Triticum aestivum L.), as a C3 plant, after treatment with low temperature (4oC) and high irradiance (450 and 850 mmol m-2 s-1). Results indicated that wheat plants showed more tolerance to low temperature. Increased tolerance in cold-treated plants was achieved through enhancement in antioxidant system activity. Plants treated with light intensity at 850 mmol m-2 s-1 showed the highest level of stress leading to lower MAXIMAL QUANTUM YIELD OF PHOTOSYSTEM II (PSII) (Fv/Fm) values. In contrast, the light intensity at 450 μmol m-2 s-1 did not reduce significantly the maximal quantum yield of PSII. This may be attributed to the enhancement of catalase (CAT) activity and anthocyanin synthesis (screening of photoradiation in epidermis cells), and consequently further protection of PSII from PHOTODAMAGE.

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APA: Copy

HABIBI, GHADER, SERVATIAN, NASRIN, & ABEDINI, MASUMEH. (2017). PHOTOPROTECTION MECHANISMS IN WHEAT PLANTS UNDER HIGH LIGHT AND COLD TEMPERATURE CONDITIONS. IRANIAN JOURNAL OF PLANT BIOLOGY, 9(31 ), 59-72. SID. https://sid.ir/paper/160063/en

Vancouver: Copy

HABIBI GHADER, SERVATIAN NASRIN, ABEDINI MASUMEH. PHOTOPROTECTION MECHANISMS IN WHEAT PLANTS UNDER HIGH LIGHT AND COLD TEMPERATURE CONDITIONS. IRANIAN JOURNAL OF PLANT BIOLOGY[Internet]. 2017;9(31 ):59-72. Available from: https://sid.ir/paper/160063/en

IEEE: Copy

GHADER HABIBI, NASRIN SERVATIAN, and MASUMEH ABEDINI, “PHOTOPROTECTION MECHANISMS IN WHEAT PLANTS UNDER HIGH LIGHT AND COLD TEMPERATURE CONDITIONS,” IRANIAN JOURNAL OF PLANT BIOLOGY, vol. 9, no. 31 , pp. 59–72, 2017, [Online]. Available: https://sid.ir/paper/160063/en

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