Chloroplast‐located flavonoids can scavenge singlet oxygen
نویسندگان
چکیده
منابع مشابه
Carbocisteine can scavenge reactive oxygen species in vitro.
BACKGROUND AND OBJECTIVE Reactive oxygen species (ROS) play an important role in the pathogenesis of various respiratory diseases. Carbocisteine, a mucoregulatory drug, is used in the treatment of several disease states but little information is available about its scavenger effects on ROS. The present study was designed to examine the scavenger effects of carbocisteine on ROS. METHODS The ox...
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Detection of singlet oxygen emission, λ(max) = 1270 nm, following laser excitation and steady-state methods were employed to measure the total reaction rate constant, k(T), and the reactive reaction rate constant, k(r), for the reaction between singlet oxygen and several flavonoids. Values of k(T) determined in deuterated water, ranging from 2.4×10(7) M(-1) s(-1) to 13.4×10(7) M(-1) s(-1), for ...
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Singlet oxygen (O2) is a higher energy state molecular oxygen species. It is one of the most active intermediates involved in chemical and biochemical reactions. To fully appreciate the reactivity of O2, it is necessary to understand its physical and chemical nature. This paper reviews the generation, quenching and detection of O2. Its properties, possible chemical reactions are presented as we...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 2007
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.2007.01986.x