ライフサイエンスコーパス: chlorophyll a

1 be slightly slower in chlorophyll B than in chlorophyll A.

2 b-bloom conditions of less than 20 mug L(-1) chlorophyll a.

3 deoxynucleosides and pheophytin derived from chlorophyll a.

4 erlap of the modified phycobiliproteins with chlorophyll a.

5 had lost most of their phycobiliproteins and chlorophyll a.

6 dation site (Q(p)) adjacent to haem b(p) and chlorophyll a.

7 ra of the complexes closely resemble that of chlorophyll a.

8 (i.e., El Nino) was associated with peaks in chlorophyll-a.

9 nzylimide methyl ester were synthesized from chlorophyll-a.

10 ined were for ascorbic acid (0.77 and 0.86), chlorophyll a (0.79 and 0.66), chlorophyll b (0.86 and 0

11 the levels of other phytochemicals, such as chlorophyll a (1 muM and 100 muM AA, 50 muM ABA); chloro

12 inter values were 43.2% of summer values for chlorophyll a, 15.8% of summer phytoplankton biovolume a

13 rption properties and cellular costs between chlorophyll a(2)/b(2) and phycobilisome antennas in exta

14 isomes, Prochlorococcus has evolved to use a chlorophyll a(2)/b(2) light-harvesting complex.

15 d values for total phosphorus (15 mug/L) and chlorophyll a (4 mug/L) concentrations under scenarios o

16 xpression resulted in a preferential loss of chlorophyll a, a lower steady state of Rubisco as measur

17 Correlations with whole-community chlorophyll a, a proxy for autotrophic biomass, suggest

18 oligotrophic waters, but contained levels of chlorophyll a, a proxy for phytoplankton biomass, charac

19 Also, minor amounts of chlorophyll a, a' and b can be observed in Opuntia peel

20 imary electron donor P700 (a special pair of chlorophyll a/a' molecules) to three iron-sulfur cluster

21 n and beta-carotene levels, but not those of chlorophyll a, accumulated in whole soybean sprouts and

22 Chlorophyll a (Adj. R(2) = 0.83, p < 0.0001) was equally

23 eing due to the 13(1) keto carbonyl group of chlorophyll a, again, most likely the 13(1) keto carbony

24 ted in the cell to levels exceeding those of chlorophyll a, although LHCII did not accumulate.

25 iations of fisheries yield parallel those of chlorophyll-a (an index of phytoplankton biomass).

26 e linked to rapid, 2- to 3-fold increases in chlorophyll a, an indicator of phytoplankton concentrati

27 ids and phenolic acids with small amounts of chlorophyll (a and b), lycopene and beta-carotene.

28 of the four LhcA subunits of LHCI include 52 chlorophyll a and 9 chlorophyll b molecules, as well as

29 p between the fluorescence emission bands of chlorophyll a and a probe.

30 r far-red light (FRL; >725 nm) contains both chlorophyll a and a small proportion of chlorophyll f.

31 re prepared to mimic varying compositions of chlorophyll a and b in nature for the application in foo

32 g1/i4g2 double mutant has reduced amounts of chlorophyll a and b suggesting a role in the expression

33 nd quantify two main chlorophyll components (chlorophyll a and b) present in their mixtures.

34 ponents present in high amounts are proline, chlorophyll A and B, all the essential amino acids and v

35 ECT-MP can both simultaneously retrieve leaf chlorophyll a and b, and also performs better than PROSP

36 Q(y) absorption bands at 672 and 812 nm from chlorophyll a and bacteriochlorophyll a, respectively.

37 The lipidic chlorophyll a and beta-carotene (beta-car) in cyanobacte

38 the substitution of the axial ligand of the chlorophyll a and chlorophyll a' molecules that form the

39 Chlorophyll a and chlorophyll b exhibit distinct spectra

40 ation of total plant-based chlorophylls into chlorophyll a and chlorophyll b is necessary for advance

41 ished based on correlation coefficients with chlorophyll a and often shared molecular features (eleme

42 ssor strains showed near-wild-type levels of chlorophyll a and photosystem I, yet the serine oxygen l

43 oautotrophically due to suppressed levels of chlorophyll a and photosystem I.

44 Our study utilised remotely-sensed data (chlorophyll a and sea surface temperature) coupled with

45 relations of FT-ICR-MS peak intensities with chlorophyll a and solar irradiation were used to define

46 on (UK) and exposure of air masses to marine chlorophyll a and to other source proxies.

47 Correlations between chlorophyll a and total phosphorus in freshwater ecosyst

48 data, whereas a direct relationship between chlorophyll a and total phosphorus is always supported,

49 koid membranes, and is correctly folded with chlorophyll a and xanthophylls but without chlorophyll b

50 , nitrate-N, dissolved inorganic phosphorus, chlorophyll-a and algal density).

51 hic vs. hypertrophic) on total phytoplankton chlorophyll-a and cyanobacterial abundance and compositi

52 ith remotely sensed sea surface temperature, chlorophyll-a and irradiance data, and modeled wave data

53 ed 2 degrees C warmer than normal, surf-zone chlorophyll-a and nutrients were 50% and 30% less than n

54 lation between genetic variation and surface chlorophyll-a and salinity, suggesting an important role

55 e total nitrogen and phosphorus, summer-time chlorophyll-a and summer-time Secchi depth have not been

56 om 1.2 to 4.3 times higher concentrations of chlorophylls a and b, carotenoids, alpha- and beta-carot

57 valuable targets given their resemblance to chlorophylls a and b, which bear 3-vinyl and 13-keto gro

58 A), and F(B) via acceptors A(0) (a monomeric chlorophyll a) and A(1) (phylloquinone).

59 rganic carbon (DOC), nutrient concentration, chlorophyll a), and human population density.

60 tions in standing stocks of total carbon and chlorophyll a, and a shift towards smaller phytoplankton

61 stuary in relation to temperature, salinity, chlorophyll a, and sediment concentrations of cadmium, c

62 elated negative-exponentially with mean SST, chlorophyll a, and SST rise.

63 ntration and the relationship between TP and chlorophyll a, and these indicate that spring phosphorus

64 o cyanobacteria than other pigments, such as chlorophyll-a, and to present an excellent linear correl

65 the plastid-encoded psaA (photosystem I P700 chlorophyll a apoprotein A1), psbA (photosystem II react

66 res (14.5 degrees C-17.5 degrees C) and high chlorophyll-a ( approximately 11 mg m(-3)).

67 Chlorophyll b was more stable than chlorophyll a at 70 degrees C, but both of them were hig

68 ts, FeCh possesses a conserved transmembrane chlorophyll a/b binding (CAB) domain that resembles the

69 -translational targeting of light harvesting chlorophyll a/b binding (LHC) proteins.

70 Peripheral chlorophyll a/b binding antenna of photosystem I (LHCI)

71 egulation of C1-beta-glucuronidase (GUS) and chlorophyll a/b binding protein (cab3)-GUS reporter gene

72 and the pseudo-response regulator TIMING OF CHLOROPHYLL A/B BINDING PROTEIN (TOC1/PRR1).

73 as engineered under the control of the cab1 (chlorophyll a/b binding protein 1) promoter, in order to

74 omycin-dependent changes in LIGHT HARVESTING CHLOROPHYLL A/B BINDING PROTEIN 1.1 expression were comp

75 of greening, and light-induced expression of CHLOROPHYLL A/B BINDING PROTEIN 3 and CHALCONE SYNTHASE.

76 enhanced 35S promoter) or a relatively weak (chlorophyll a/b binding protein promoter) promoter was u

77 n and epistasis analyses show that TIMING OF CHLOROPHYLL A/B BINDING PROTEIN1 (TOC1) expression is no

78 Oscillations of [Ca(2+)](cyt) and CHLOROPHYLL A/B BINDING PROTEIN2 (CAB2) promoter activit

79 SHB1 regulation of hypocotyl elongation and CHLOROPHYLL a/b BINDING PROTEIN3 or CHALCONE SYNTHASE ex

80 ALA1 (ASAP1) floral regulatory genes and the CHLOROPHYLL A/B BINDING PROTEIN9 (ASCAB9) photosynthetic

81 The structure of the major light-harvesting chlorophyll a/b complex (LHCII) was analyzed by pulsed E

82 ased chlorophyll b synthesis and a decreased chlorophyll a/b ratio in low light-grown as well as high

83 Furthermore, the chlorophyll a/b ratio of photosystem II core particles (

84 In addition to a low chlorophyll a/b ratio, the carotenoid pigments of seeds

85 Chlorophyll a/b ratios and the functional absorption cro

86 Values for Rubisco amount, chlorophyll a/b, and P(max) all declined from the top to

87 lix proteins resembling helices I and III of chlorophyll a/b-binding (Cab) antenna proteins from high

88 tion of its substrates, the light-harvesting chlorophyll a/b-binding (LHC) proteins, in the absence o

89 ivate expression of genes encoding the major chlorophyll a/b-binding protein (cab) in the dark.

90 t from the light-regulated mechanism for the chlorophyll a/b-binding protein (cab) or small subunit o

91 lational integration of the light-harvesting chlorophyll a/b-binding protein (LHCP) into thylakoid me

92 cpSRP43) that together bind light-harvesting chlorophyll a/b-binding protein (LHCP) to form a soluble

93 ted promoters, we identified elements in the chlorophyll a/b-binding protein 2 (CAB2) promoter that a

94 hydrate results in a significant decrease in chlorophyll a/b-binding protein and ribulose bisphosphat

95 nd abscisic acid leading to light-harvesting chlorophyll a/b-binding protein expression in etiolated

96 ased expression of a hexokinase gene (HXK1), chlorophyll a/b-binding protein gene (CAB1), ADP-glucose

97 nt, CO(2) assimilation, and LIGHT-HARVESTING CHLOROPHYLL a/b-BINDING PROTEIN transcription) is early

98 aining promoter fragment of light-harvesting chlorophyll a/b-binding protein2.4 (LHCB2.4).

99 sitioning of the Arabidopsis light-inducible chlorophyll a/b-binding proteins (CAB) locus from the nu

100 osystem II (PSII) subunits, light-harvesting chlorophyll a/b-binding proteins (LHCb), Rubisco large a

101 ost-translationally targets light-harvesting chlorophyll a/b-binding proteins (LHCP) to the thylakoid

102 y of membrane proteins, the light harvesting chlorophyll a/b-binding proteins (LHCPs), during their d

103 Amino acid residues of the light-harvesting chlorophyll a/b-binding proteins involved in pigment bin

104 o-ordinated synthesis of chlorophyll and the chlorophyll a/b-binding proteins is critical to the deve

105 yme of 5-aminolaevulinic acid formation, and chlorophyll a/b-binding proteins, respectively.

106 l transport of the abundant light-harvesting chlorophyll-a/b-binding proteins (LHCPs).

107 Considering variations in chlorophyll a:b ratio with leaf age and physiological st

108 Comparison of satellite-derived chlorophyll-a, backscatter, absorption and remote sensin

109 ft of the cytochrome f alpha-band and the Qy chlorophyll a band in the cyanobacterial complex and an

110 wo genes that encode key enzymes involved in chlorophyll a, biliverdin, and heme biosynthesis: acsFI/

111 nter trimer surrounded by 18 subunits of the chlorophyll a binding CP43'protein, encoded by the isiA

112 Chlorophyll-a binds on Au(111) via its porphyrin unit wh

113 sumers caused the greatest decrease in final chlorophyll a biomass and accrual rates the most in the

114 trends mirror those for chlorophyll b versus chlorophyll a but are of lesser magnitude.

115 Lake TP was a strong predictor of chlorophyll a, but the relationship was weaker at sites

116 itrogen and iron increased concentrations of chlorophyll a by up to approximately 40-fold, led to dia

117 A 75% decrease of the main fucoxanthin-chlorophyll a/c-binding proteins was identified in the a

118 ations for different model structures of the chlorophyll a(+) cation radical.

119 on photosynthetic attributes, such as Fv/Fm, chlorophyll a/cell, levels of D2 PSII subunits, or RbcL;

120 thod shows good applicability in mixtures of chlorophyll a (Chl a) and chlorophyll b (Chl b) with con

121 The oxidation of chlorophyll a (chl a) catalysed by peroxidase (POD) from

122 idely used empirical approach for estimating chlorophyll a (Chl) from satellites can be in error by a

123 employed to analyze the relationship between chlorophyll a (Chl-a) and the explanatory variables in t

124 triplicate 4 m(3) enclosures with equivalent chlorophyll a (Chl-a) under present and higher partial p

125 Spatial and temporal measures of SeaWiFS OC4 chlorophyll-a (Chl(RS)-a, mg m(-3)) were resolved across

126 We show that positive anomalies in chlorophyll-a (chl-a) at Palmer Station, occurring every

127 Analysis of a 10-year high resolution Chlorophyll-a (Chl-a) dataset, along with remotely-sense

128 trophication has been expressed as increased chlorophyll-a (chl-a) driven by accelerated nutrient loa

129 an half a century, the two satellite-derived chlorophyll-a (Chl-a) eras are linked to assess concurre

130 Often Chlorophyll-a (Chl-a) is used to track changes in phytop

131 Here, we use satellite-derived surface chlorophyll-a (Chl-a) observations, in conjunction with

132 Chlorella is a green microalga and contains chlorophyll-a (chl-a), which is the major light harvesti

133 caused by increased phytoplankton biomass as chlorophyll-a (chl-a).

134 highly eutrophic status [99 +/- 289 ug.L(-1) chlorophyll-a (Chl-a)].

135 Temperature and chlorophyll a (chla) concentration varied significantly

136 Fluorescence of chlorophyll a (Chla) is a noninvasive and very sensitive

137 PROSPECT-MP) that can combine the effects of chlorophyll a, chlorophyll b and carotenoids on leaf dir

138 ote sensing of leaf photosynthetic pigments (chlorophyll a, chlorophyll b and carotenoids) and for pr

139 levels of 12 key C and N metabolites, namely chlorophyll a, chlorophyll b, fructose, fumarate, glucos

140 d biochemical profiles (lipid production and chlorophyll a) comparable to the untreated control, cult

141 ocean biological productivity, inferred from chlorophyll a concentration (Chl a), has significantly c

142 Satellite sensors were used to measure chlorophyll a concentration (CHL) and sea surface temper

143 ompensate for the loading reduction, and the chlorophyll a concentration decreases substantially (by

144 oefficient (mu(s)) of the coral skeleton and chlorophyll a concentration of live coral tissue.

145 ive models to infer spatiotemporal trends of chlorophyll a concentration, sediment organic carbon con

146 xplanations based on the correlation between chlorophyll-a concentration (Chl-a) and climatic indices

147 treme events tended to coincide with reduced chlorophyll-a concentration at low and mid-latitudes.

148 ophyll Maxima (DCMs) are subsurface peaks in chlorophyll-a concentration that may coincide with peaks

149 system metabolism (dissolved oxygen, pH, and chlorophyll-a concentration) and to estimate gross prima

150 easured variables (dissolved oxygen, pH, and chlorophyll-a concentration) related to ecosystem metabo

151 st correlated to phosphorus availability and chlorophyll-a concentration.

152 m intensities evident as overall declines in chlorophyll a concentrations (DeltaChla = -2.8 +/- 0.5%y

153 tal variables (solar radiation, temperature, chlorophyll a concentrations among others), and these sh

154 cess were also strongly influenced by winter chlorophyll-a concentrations and sea-surface height anom

155 to capture local environmental forcings, as chlorophyll-a concentrations decreased at relatively sho

156 rations increased, whereas phytoplankton and chlorophyll-a concentrations decreased, directly corresp

157 = 0.5; n = 147) that successfully predicted chlorophyll-A concentrations from an external subset of

158 nchronized daily time-series data of surface chlorophyll-a concentrations from the NASA's MODIS satel

159 dity, and dissolved organic carbon (DOC) and chlorophyll-a concentrations in a wetland-influenced reg

160 nd declines in coral cover, and (ii) maximum chlorophyll-a concentrations, which were associated with

161 nd that the reef ecosystems with the highest chlorophyll-a concentrations; Jarvis, Howland, Baker, Pa

162 e complex shows that the fifth ligand of the chlorophyll a contains two water molecules.

163 germination in 'Pungsannamulkong' while the chlorophyll a content in whole sprouts was highly linked

164 The chlorophyll a content of the menG mutant strain was simi

165 rrelation between microplastic abundance and chlorophyll a content suggests vertical export via incor

166 The mutant displayed decreased chlorophyll a content.

167 While chlorophyll-a content (CHL) is commonly described as a p

168 y with water temperature and whole-community chlorophyll a Correlations with temperature point to the

169 time, we explored patterns in phosphorus and chlorophyll a data from 2008 to 2018 collected in wester

170 ment was detected for both cyanobacteria and chlorophyll-a demonstrating that ecological surprises ca

171 ence of reactions from pyropheophorbide-a (a chlorophyll-a derivative), was found to be a promising i

172 eactions have afforded 20-phenyl-substituted Chlorophyll a derivatives (ZCPh) in good yields and sign

173 tabolic changes of lutein, beta-carotene and chlorophyll a during germination are affected not only b

174 tabolic changes of lutein, beta-carotene and chlorophyll a during germination of the soybean (Glycine

175 gmentation (11 times the cellular content of chlorophyll a) enables glacier algae to tolerate extreme

176 ecessarily lead to good ecological status of chlorophyll-a, even though a dependency between the para

177 nsient suppression then recovered with total chlorophyll a exceeding that in the controls within 72-h

178 alysis of the carbonyl stretching region for chlorophyll a excitations indicates that the HliD binds

179 Reservoirs with higher epilimnetic [chlorophyll a] experienced larger increases in CH4 emiss

180 The ratio of chlorophyll a fluorescence (F685 nm/F730 nm) significant

181 We suggest that measurement of chlorophyll a fluorescence can be used to operationally

182 results of pulse-amplitude modulation-based chlorophyll a fluorescence emission measurements, oxygen

183 Chlorophyll a fluorescence emission was checked in treat

184 s vulgaris and homobaric Commelina communis, chlorophyll a fluorescence images showed dramatic declin

185 patches were quantified by gas exchange and chlorophyll a fluorescence imaging in different species

186 s with different anatomy by gas exchange and chlorophyll a fluorescence imaging using grease to block

187 ons evaluated at the same conditions such as chlorophyll a fluorescence indices, total, reducing suga

188 Here, we demonstrate that time-resolved chlorophyll a fluorescence is a unique tool to monitor b

189 Here we measured, in parallel, the chlorophyll a fluorescence lifetime and intensity to und

190 ither the fractional intensities of the PSII chlorophyll a fluorescence lifetime distributions or ste

191 Global analysis of the chlorophyll a fluorescence lifetime distributions reveal

192 ssure and changes in the fractional areas of chlorophyll a fluorescence lifetime distributions, but n

193 In this study, chlorophyll a fluorescence light response curves and gas

194 Using chlorophyll a fluorescence measurements, we found photos

195 Using chlorophyll a fluorescence measurements, we observed tha

196 photosynthetic apparatus in the mutants from chlorophyll a fluorescence parameters and their high lev

197 e function of photosystem II, the polyphasic chlorophyll a fluorescence rise and flash fluorescence i

198 tified Tcrit (high temperature where minimal chlorophyll a fluorescence rises rapidly and thus photos

199 row limits), in contrast to the more dynamic chlorophyll a fluorescence signal.

200 ere an educational review on the relation of chlorophyll a fluorescence transient to various processe

201 bservation that differences at the I step in chlorophyll a fluorescence transients from healthy and P

202 Leaf gas exchange, water potential, and chlorophyll a fluorescence were monitored during the ecl

203 Here, proxies for leaf cellular damage, chlorophyll a fluorescence, and electrolyte leakage were

204 (measured as non-photochemical quenching of chlorophyll a fluorescence, NPQ) to induce and relax mor

205 mbrane inlet mass spectrometry gas exchange, chlorophyll a fluorescence, P700 analysis, and inhibitor

206 e nonradiative dissipation and, thus, quench chlorophyll a fluorescence.

207 ement of a red light-stimulated quenching of chlorophyll a fluorescence.

208 to as NPQ, or nonphotochemical quenching of chlorophyll a fluorescence.

209 odified for greatly increased sensitivity to chlorophyll-a fluorescence, and we show high spectral co

210 Furthermore, we find that chlorophyll a has a prevalent role in the coordination o

211 dyl axial ligand to the Mg(2+) of the P(700) chlorophyll a has been changed to several different amin

212 (photosynthetic efficiency, coral whitening, chlorophyll a, host protein, algal symbiont counts, and

213 )-beflubutamid, as determined by analysis of chlorophyll a in 5-day-old leaves.

214 t chlorophyll b functionally substitutes for chlorophyll a in photosystem II.

215 that phytoplankton taxonomic data outperform chlorophyll a in terms of predictive importance.

216 ts of total lipids, total carbohydrates, and chlorophyll a in the cells of the microalga, indicating

217 chrome b 6 f complex, the role of the single chlorophyll a in the structure and function of the compl

218 crustaceans and 2.5-fold increase of summer chlorophyll-a in the Bay.

219 riochlorophyll at one station exceeded total chlorophyll-a in the overlying oxygenated portion of the

220 ve the H-bond to the 13(1)-keto group of the chlorophyll a' in Chlamydomonas reinhardtii.

221 hosphorus) and phytoplankton standing stock (chlorophyll a) in lakes was described about 30 years ago

222 n, the contents of lutein, beta-carotene and chlorophyll a increased from those in the seeds.

223 aring monthly time series of temperature and chlorophyll-a inside San Francisco Bay with those in adj

224 perature and the acid-driven demetalation of chlorophyll-a into pheophytin-a.

225 its it, supporting a gating function for the chlorophyll a involved in redox sensing.

226 almost complete transfer to chlorophyll f if chlorophyll a is pumped with a wavelength of 670 nm or 7

227 of light harvesting from the xanthophylls to chlorophyll a is relatively high and insensitive to the

228 peaked with a 16-fold increase (relative to chlorophyll-a) just after the major lysis event.

229 lticomponent nanoreactor (NR) that comprises chlorophyll a, l-ascorbic acid, and gold nanoparticles t

230 Chlorophyll a levels were positively related to krill li

231 asing sea surface temperature and increasing chlorophyll a levels.

232 thioglycolic acid were highly correlated to chlorophyll a, likely indicating an algal origin.

233 Under HL, each Deltapgl mutant had less chlorophyll, a lower photosystem I (PSI)/PSII ratio, mor

234 ed six components: Model 1 (pheophytin-A and chlorophyll-A), Model 2 (chlorophyll-B and chlorophyll-C

235 chlorophyll a species, most likely the A(0) chlorophyll a molecule that is in close proximity to A(1

236 ing the triplet excitation transfer from the chlorophyll a molecule to distant beta-carotene, is disc

237 e the mutant PS1 contained approximately one chlorophyll a' molecule per reaction center, indicating

238 is thought to provide a hydrogen bond to the chlorophyll-a' molecule of P700 (the two chlorophylls of

239 tructure of photosystem I (PS I) depicts six chlorophyll a molecules (in three pairs), two phylloquin

240 ion in the ensemble of excitonically coupled chlorophyll a molecules around P700 similar to what has

241 xcitations indicates that the HliD binds six chlorophyll a molecules in five non-equivalent binding s

242 ndscape comprising 96 PSI trimers and 27,648 chlorophyll a molecules.

243 Single chlorophyll-a molecules, a vital resource for the susten

244 of the axial ligand of the chlorophyll a and chlorophyll a' molecules that form the P(700) heterodime

245 The primary electron acceptor A(0) is a chlorophyll a monomer that could be one or both of the t

246 rength by the ground-state absorption of the chlorophyll a monomers from the excited-state absorption

247 the 13(1) keto carbonyl of chlorophyll a or chlorophyll a' of P700 on PsaB or PsaA absorbs at 1703.4

248 valuable targets given their resemblance to chlorophyll a or b, which contains the 13(1)-oxophorbine

249 HS(A676) mutant, the 13(1) keto carbonyl of chlorophyll a or chlorophyll a' of P700 on PsaB or PsaA

250 nt WSCP from cauliflower, reconstituted with chlorophyll a or chlorophyll b, gives excellent agreemen

251 r of spectral properties resembling those of chlorophyll a or its zinc analogue.

252 lls1 lesion mimic phenotype was delayed in a chlorophyll a oxygenase (CAO) mutant chlorina1 backgroun

253 This gene family includes chlorophyll a oxygenase (Cao), choline monooxygenase (Cm

254 e protein via a threonine residue, while the chlorophyll a (P(B)) does not have such a hydrogen bond.

255 eplacement of the axial ligand of the B-side chlorophyll a (P(B)), as well as the double mutant (PsaA

256 molecule of chlorophyll a' (P(A)) and one of chlorophyll a (P(B)).

257 a FR-chlorophyll and the secondary donor is chlorophyll-a (P(D1) of the central chlorophyll pair).

258 an asymmetric dimer made of one molecule of chlorophyll a' (P(A)) and one of chlorophyll a (P(B)).

259 structure of photosystem I reveals that the chlorophyll a' (P(A)) could be hydrogen-bonded to the pr

260 ich the histidine axial ligand of the A-side chlorophyll a' (P(A)) is replaced with glutamine, and Ps

261 contained 10.3 bacteriochlorophyll a(P), 6.4 chlorophyll a(PD), and 1.6 Zn-bacteriochlorophyll a(P)'

262 phetamine, there was up to 45% lower biofilm chlorophyll a per ash-free dry mass, 85% lower biofilm g

263 Two conformations of the chlorophyll a phytyl tail were resolved, one that preven

264 les are formed from pheophytin (demetallated chlorophyll), a pigment that is naturally consumed in hu

265 To enhance the stability of chlorophyll, a polymer encapsulation method was proposed

266 -equivalent binding sites, with at least one chlorophyll a presenting a slight distortion to its macr

267 cling (bacterial respiration and production, chlorophyll a, production to respiration ratio, and part

268 form (MFPCP) and high-salt (HSPCP) peridinin-chlorophyll a proteins from the dinoflagellate Amphidini

269 form (MFPCP) and high-salt (HSPCP) peridinin-chlorophyll a-proteins.

270 emtosecond excitation of the red edge of the chlorophyll a Q(Y) transition band in photosystem I (PSI

271 plants exhibited increased nonphotochemical chlorophyll a quenching during photosynthesis.

272 yl group substitutions on the side chains of chlorophyll a result in the different absorption propert

273 etween aerosol surfactant concentrations and chlorophyll-a seawater concentrations suggest a marine a

274 redictor variables included in the model are chlorophyll a, sediment type, dissolved oxygen, temperat

275 during leaf senescence include breakdown of chlorophyll, a shift to catabolism of energy reserves, a

276 nd is due to a 13(3) ester carbonyl group of chlorophyll a species, most likely the A(0) chlorophyll

277 on-photochemical quenching (NPQ) and maximum chlorophyll a-specific carbon fixation (Pmax ), but tran

278 , secchi-depth status is strongly related to chlorophyll-a status in three of the four study-areas.

279 yrophosphate, required for the final step in chlorophyll a synthesis.

280 partitioned into components predicted by pH, chlorophyll a, temperature, and water mass movements.

281 ly the 13(1) keto carbonyl group of the A(0) chlorophyll a that is close to A(1).

282 n growth, resulting in an extensive plume of chlorophyll a that was detectable by satellite.

283 state, shows that energy is transferred from chlorophyll a to a low-lying carotenoid excited state, i

284 deletion strains accumulated carotenoids and chlorophyll a to a significantly higher level than their

285 The equivalent ratio of chlorophyll a to b, in all treatments with conventional

286 -order rate constant for the demetalation of chlorophyll-a to pheophytin-a was experimentally determi

287 w a rapid subpicosecond energy transfer from chlorophyll-a to the long-wavelength chlorophylls-f/d Th

288 ake Huron, we examine the relationship among chlorophyll a, total phosphorus, and algal biomass measu

289 to develop forecasting models of odor using chlorophyll a, turbidity, total phosphorus, temperature,

290 ly, there was no correlation between monthly chlorophyll-a variability inside and outside the Bay.

291 Furthermore, chlorophyll a was a good discriminating factor between c

292 Chlorophyll a was converted into zinc methyl 3-ethylpyro

293 Interestingly, chlorophyll a was identified as a more robust and useful

294 nin, allophycocyanin-B/terminal emitter, and chlorophyll a was resolved.

295 In contrast, chlorophyll-a was greatest at reef ecosystems proximate

296 However, at the annual scale Bay chlorophyll-a was significantly correlated with the Spri

297 responsible for chlorophyll b synthesis from chlorophyll a, was introduced and expressed in a photosy

298 y observable and separated from that of bulk chlorophyll-a We present an ultrafast transient absorpti

299 containing vitamin B12 could further enhance chlorophyll a yields by up to threefold.

300 mpare phenological change for phytoplankton (chlorophyll a), zooplankton (Daphnia) and fish (perch, P