ライフサイエンスコーパス: photoprotective

1 dical scavenging reactions, accounts for the photoprotective actions of beta-carotene.

2 ) signaling that coordinate biosynthetic and photoprotective activities required to poise the etiopla

3 C-terminal domain dynamically regulates the photoprotective activity of an otherwise constitutively

4 ogical properties, including antioxidant and photoprotective activity, and high intake has been linke

5 e strategy with high structural diversity as photoprotective agents, and their effect on UVA-induced

6 philic pigments synthesized by plants, exert photoprotective and antioxidant properties that are lost

7 in skin cells; this may be important in the photoprotective and other anti-inflammatory effects conf

8 onditions such as cold and high light and is photoprotective, as it reduces lipid peroxidation levels

9 sults are discussed in terms of the relative photoprotective benefit related to thermal dissipation o

10 any chemical filter molecule used in such a photoprotective capacity include a large absorption cros

11 The photoprotective capacity of kleptoplasts was compared to

12 In Myxococcus xanthus photoprotective carotenoids are produced in response to

13 ediates light-dependent gene regulation in a photoprotective cellular response.

14 artificial sources of UV radiation and using photoprotective clothing and sunscreens.

15 essential to the induction of genes encoding photoprotective components in Arabidopsis thaliana.

16 In addition to acting as photoprotective compounds, carotenoids also serve as pre

17 he switch between their light-harvesting and photoprotective conformations in vivo.

18 in the irradiance at which energy flux into photoprotective dissipation became greater than ETR was

19 both for maximum quantum efficiency and for photoprotective dissipation of excess excitation energy.

20 ngs reveal key control mechanisms underlying photoprotective dissipation, with implications for incre

21 acclimated but retained a high capacity for photoprotective down regulation and contributed up to 51

22 nt UVB dose (30 mJ/cm(2)/day) to examine the photoprotective effect and associated mechanisms of sili

23 CP29 and the mechanisms by which it exerts a photoprotective effect.

24 beta-Carotene is hypothesized to exert photoprotective effects by quenching singlet oxygen form

25 To document and quantify inducible photoprotective effects in human skin, explant cultures

26 spectively, thus potentially contributing to photoprotective effects of carotenoid-rich food.

27 light and dark irides is probably due to the photoprotective effects of pigmentation.

28 To evaluate photoprotective effects of Polypodium leucotomos extract

29 er layer could play an important role in the photoprotective effects of the macular carotenoids again

30 d the response to alpha-melanocortin and its photoprotective effects, evidenced by lack of functional

31 ically active natural compounds can increase photoprotective effects.

32 xtract supplementation affords the following photoprotective effects: p53 activation and reduction of

33 ns as both a sensor of light and effector of photoprotective energy dissipation in cyanobacteria.

34 The existence of a mechanism of photoprotective energy dissipation in plants lacking Psb

35 To dissect the role of xanthophylls in photoprotective energy dissipation in vivo, we isolated

36 lead to losses in absorbed energy usage, as photoprotective energy dissipation mechanisms can take m

37 as membrane stacking, photosystem II repair, photoprotective energy dissipation, state transitions an

38 r diffusion-dependent electron transport and photoprotective energy-dependent quenching.

39 posure to UVR increases the synthesis of the photoprotective eumelanin on activation of MC1R, a melan

40 he equator and led to the evolution of dark, photoprotective, eumelanin-rich pigmentation.

41 ated 3 (LHCSR3) is the protein essential for photoprotective excess energy dissipation (non-photochem

42 A photoprotective function for the beta-carotene was infer

43 Supporting a photoprotective function of carotenoids, carotenoid-free

44 plex phenomenon commonly believed to serve a photoprotective function through the generation and stra

45 Thus, OCP has dual and complementary photoprotective functions as an energy quencher and a si

46 ental importance to the light-harvesting and photoprotective functions essential to oxygenic photosyn

47 g against photooxidative stress, whereas the photoprotective functions of tocopherols have only recen

48 versible form(s) of NPQ and whether they are photoprotective, in part due to the lack of mutants.

49 ion of excess excitation energy, mediated by photoprotective isoprenoids, is an important defense mec

50 ns (Lhcfs) were up to 500% greater in LL and photoprotective LI818 proteins were 300% greater in HL.

51 d the ability to tan are considered the main photoprotective mechanism against sun-induced carcinogen

52 a key role in nonphotochemical quenching, a photoprotective mechanism for dissipation of excess exci

53 of excess excitation energy is an important photoprotective mechanism in photosynthetic organisms.

54 A primary photoprotective mechanism is thermal dissipation of exce

55 switching represents a simple and effective photoprotective mechanism of likely importance for photo

56 deficient in feedback de-excitation (qE), a photoprotective mechanism that causes the dissipation of

57 Cyanobacteria have developed a photoprotective mechanism that decreases the energy arri

58 Cyanobacteria have developed a photoprotective mechanism that decreases the energy arri

59 Because the photoprotective mechanism that has been altered is commo

60 Consequently, the photoprotective mechanism works effectively for closed r

61 or non-photochemical quenching (NPQ(max)), a photoprotective mechanism, was higher in a recently form

62 stem II (PSII) and possibly play a role as a photoprotective mechanism.

63 ated from strains that lack the OCP-mediated photoprotective mechanism.

64 Photoprotective mechanisms are of fundamental importance

65 in variable light conditions via a suite of photoprotective mechanisms called nonphotochemical quenc

66 traspecific variation in isoprenoid-mediated photoprotective mechanisms contributes to the adaptive p

67 Here, we show that antioxidant and photoprotective mechanisms in the lichen Cladonia vulcan

68 nce-specific variation in photosynthesis and photoprotective mechanisms mediated by essential and non

69 Under high-light conditions, photoprotective mechanisms minimize the damaging effects

70 To prevent damage, plants possess photoprotective mechanisms that dissipate excess excitat

71 in plants and green algae and is involved in photoprotective mechanisms that regulate the amount of e

72 Photosynthetic organisms use various photoprotective mechanisms to dissipate excess photoexci

73 The efficiency of photoprotective mechanisms, such as nonenzymatic and enz

74 and intensity of light on the modulation of photoprotective mechanisms.

75 th this stress, these organisms have evolved photoprotective mechanisms.

76 o-organization of complexes and induction of photoprotective mechanisms.

77 se results with the presence (or absence) of photoprotective mechanisms.

78 induced damage, cyanobacteria have developed photoprotective mechanisms.

79 Levels of photoprotective molecules (alpha-tocopherol, carotenoids

80 and may have evolved to respond to distinct photoprotective needs under particular environmental con

81 oxidation state of the xanthophyll cycle and photoprotective non-photochemical quenching (NPQ), and c

82 ns was found to correlate with the extent of photoprotective non-photochemical quenching, consistent

83 gy between utilization in photosynthesis and photoprotective non-radiative dissipation of the excess

84 All but one LLO strain possessed the photoprotective orange carotenoid protein (OCP).

85 (b) carotenoids, which function primarily as photoprotective pigments but can also participate in lig

86 m photosynthetic apparatus and the levels of photoprotective pigments under low R:FR, tomato plants r

87 VR effects, but human trials examining their photoprotective potential are scarce.

88 The photoprotective potential of this compound against UVA-i

89 novel, emerging technology for assessing the photoprotective "power" of NPQ and the important finding

90 r tanners may be more inclined to adopt poor photoprotective practices that further increase their ri

91 The engagement of photoprotective processes in chloroplast electron transp

92 ctuating light, showing that optimization of photoprotective processes is necessary for maximum photo

93 rtance of ascorbate in comparison with other photoprotective processes, such as specific xanthophylls

94 nzymes, and up-regulation/down-regulation of photoprotective processes.

95 We have investigated the photoprotective properties of induced pigmentation using

96 caffolds specifically confer uniquely robust photoprotective properties to natural eumelanins settles

97 ers to the skin its characteristic color and photoprotective properties.

98 I in the active, light-harvesting and in the photoprotective, quenched state.

99 These photoprotective reactions prevent formation of reactive

100 g in the nucleocytosolic compartment and the photoprotective regulation of photosynthetic activity in

101 f the tanning response, the major recognized photoprotective response of human skin.

102 and plays a role in switching off the OCP's photoprotective response through its interaction with th

103 n addition to tanning, pTpT induces a second photoprotective response, enhanced repair of UV-induced

104 that affects the kinetics and extent of the photoprotective response.

105 wo essential components of the cry1-mediated photoprotective response.

106 All provenances revealed uniform photoprotective responses to high solar radiation, inclu

107 oids, violaxanthin and zeaxanthin) has a key photoprotective role and is therefore a promising target

108 at besides qE, state transitions also play a photoprotective role during high light acclimation of th

109 In addition, we elucidated the photoprotective role of CP29 phosphorylation in reducing

110 d colleagues provide robust evidence for the photoprotective role of endogenous urocanic acid and reo

111 ids, which perform both light-harvesting and photoprotective roles essential to the photosynthetic pr

112 conformation from a light-harvesting into a photoprotective state, in which the excess and harmful e

113 to be preserved in the light-harvesting and photoprotective state.

114 single-molecule spectroscopy to uncover the photoprotective states and dynamics of the light-harvest

115 Photoprotective strategies initially focused on the more

116 l three senescing environments, indicating a photoprotective strategy divergent from the other specie

117 first characterization of a carotenoprotein photoprotective system in the chromatically acclimating

118 e alga tolerates only very dim light and its photoprotective system is only partially effective; with

119 ents (zeaxanthin and/or lutein) required for photoprotective thermal dissipation of excess excitation

120 ing the quantification of photosynthetic and photoprotective traits to produce repeatable and reliabl

121 electron transfer might be important in the photoprotective transfer of oxidative power away from P(

122 ation, including increased de-epoxidation of photoprotective xanthophyll cycle pigments and enhanced

123 chlorophyll-carotenoid ratios, pool sizes of photoprotective xanthophylls, beta-carotene, and stored

124 I-LHCI supercomplex: (1) the accumulation of photoprotective zeaxanthin in the LHCI antenna and the P