ライフサイエンスコーパス: photoprotective

1 We also evaluated the photoprotective ability of chloroplast movements both du

2 The photoprotective acclimation strategy was also contrastin

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

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

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

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

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

8 ne, has been reported to exhibit even better photoprotective and antioxidant properties than the most

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

10 ce of a Cu-only SOD, showing here coexisting photoprotective and chemoprotective functions.

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

12 t, antioxidant, anti-aging, neuroprotective, photoprotective, antidiabetic, wound-healing, and anti-H

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

14 The photoprotective behavior of hydrated magnesium sulfate c

15 Knowledge of sun protection and photoprotective behaviors was suboptimal but was superio

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

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

18 The photoprotective capacity of kleptoplasts was compared to

19 In Myxococcus xanthus photoprotective carotenoids are produced in response to

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

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

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

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

24 HCs and pave the way for in-depth studies of photoprotective conformations in photosynthetic systems.

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

26 al skeleton induces strong expression of the photoprotective coral host pigments.

27 hanced photosystem II efficiency and reduced photoprotective demand.

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

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

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

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

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

33 cassava starch-based films and verify their photoprotective effect on pigments and maintenance of li

34 The photoprotective effect was evaluated in food samples, re

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

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

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

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

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

40 To evaluate photoprotective effects of Polypodium leucotomos extract

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

42 However, the photoprotective effects of these nanoparticles have not

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

44 ically active natural compounds can increase photoprotective effects.

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

46 is, primarily providing light-harvesting and photoprotective energy dissipation functions within pigm

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

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

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

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

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

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

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

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

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

56 A photoprotective function for the beta-carotene was infer

57 This photoprotective function may be widespread, consistent w

58 Supporting a photoprotective function of carotenoids, carotenoid-free

59 ructural variations relate to changes in the photoprotective function of OCP.

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

61 ructures in balancing robust conservation of photoprotective function with adaptability of site-speci

62 in dynamic light environments, PR provides a photoprotective function.

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

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

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

66 sent more pigmented conjunctivae, suggesting photoprotective functions.

67 pigmented closer to the equator, suggesting photoprotective functions.

68 port, and carbon dioxide on induction of the photoprotective genes (LHCSR1, LHCSR3, and PSBS) during

69 avoid photodamage and trigger expression of "photoprotective" genes.

70 These colors derive from photoprotective green fluorescent protein (GFP)-like pig

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

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

73 ms, as well as the distribution of different photoprotective Lhcx proteins, differs from that of othe

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

75 For alpha, targets include changes in photoprotective machinery, ribulose bisphosphate carboxy

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

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

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

79 A primary photoprotective mechanism is thermal dissipation of exce

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

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

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

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

84 Because the photoprotective mechanism that has been altered is commo

85 Consequently, the photoprotective mechanism works effectively for closed r

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

87 of vibronic mixing to activate an oxidative photoprotective mechanism.

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

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

90 These photoprotective mechanisms are expected to contribute to

91 Photoprotective mechanisms are of fundamental importance

92 A number of photoprotective mechanisms assist in dissipating excess

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

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

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

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

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

98 This work highlights the diversity of photoprotective mechanisms present in algal systems, ind

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

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

101 Photosynthetic organisms use various photoprotective mechanisms to dissipate excess photoexci

102 otosynthetic organisms rely on sophisticated photoprotective mechanisms to prevent oxidative damage u

103 f alkali ions in plastid gene expression and photoprotective mechanisms, both prerequisites for plant

104 amage but benefits from a large diversity of photoprotective mechanisms, finely tuned to handle the d

105 In contrast, other photoprotective mechanisms, such as non-photochemical qu

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

107 It employs photoprotective mechanisms, such as state transitions (S

108 d management of such stress are performed by photoprotective mechanisms, which operate by cutting dow

109 exhibit some overlapping functionality with photoprotective mechanisms, while potentially conserving

110 odamage requires equally rapid regulation of photoprotective mechanisms.

111 ht energy absorbed in excess through several photoprotective mechanisms.

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

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

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

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

116 induced damage, cyanobacteria have developed photoprotective mechanisms.

117 Photoprotective melanins in the skin are synthesized by

118 hophyll cycle in N. oceanica as a short-term photoprotective memory system.

119 Levels of photoprotective molecules (alpha-tocopherol, carotenoids

120 act as the driving force to sort LHCII into photoprotective nanodomains in the thylakoid membrane.

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

122 On the other hand, photoprotective non-photochemical quenching (NPQ) is hyp

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

124 ition, which helps them to rapidly switch on photoprotective non-photochemical quenching of excitatio

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

126 d-type cells, causing a reduced capacity for photoprotective non-photochemical quenching.

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

128 S when light intensities are high to mediate photoprotective, non-photochemical quenching(3-6).

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

130 ight intensity boost the accumulation of the photoprotective pigment zeaxanthin (Zx).

131 Accumulation of photoprotective pigments and light-harvesting complex st

132 l variations in SIF yield capture changes in photoprotective pigments and photosystem II operating ef

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

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

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

136 The photoprotective potential of this compound against UVA-i

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

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

139 The engagement of photoprotective processes in chloroplast electron transp

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

141 Proof of principle now exists that major photoprotective processes such as non-photochemical quen

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

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

144 rvesting in photosynthesis is accompanied by photoprotective processes.

145 The photoprotective properties of < 100 nm TiO(2) and ZnO di

146 tion and composition, despite the additional photoprotective properties of increased melanin.

147 We have investigated the photoprotective properties of induced pigmentation using

148 SHERLOC analysis takes place, thanks to the photoprotective properties of magnesium sulfate.

149 atic molecules is a key to understanding the photoprotective properties of many biologically relevant

150 Consequently, due to the photoprotective properties of this mineral, after the ab

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

152 ntial source of MAAs with antioxidant and UV photoprotective properties, which could bear interest in

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

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

155 sition of a new, essential function, namely, photoprotective quenching of harmful (B)Chl triplets.

156 These photoprotective reactions prevent formation of reactive

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

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

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

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

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

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

163 thms in gene expression and metabolism shape photoprotective responses at different times of day.

164 To quantify forest photoprotective responses remotely, we developed a frame

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

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

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

168 In cyanobacteria, the photoprotective role is played by a specialized complex,

169 the less biologically active conformer, the photoprotective role of a carbon-based nanomaterial was

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

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

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

173 suggested to have the potential to act as a photoprotective safety valve for photosynthesis.

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

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

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

177 We show that tree photoprotective strategies can be quantified at multiple

178 Photoprotective strategies initially focused on the more

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

180 One was enriched in FCPs incorporating the photoprotective subunit Lhcx1, such as the newly identif

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

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

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

184 photochemical quenching (NPQ) is a proxy for photoprotective thermal dissipation processes that regul

185 lved higher investment in photosynthesis and photoprotective traits to better mitigate light stress.

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

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

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

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

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