Abstract:
:A peptide ranging from residue 229 to 240 of the D1 protein of Photosystem (PS) II was synthesized and lanthanides were used as candidates of calcium. Fluorescence and FTIR spectroscopy were used to test the conformational adaptation after lanthanide additions. Fluorescence spectroscopy showed that the synthetic peptide provides lanthanide binding site, and that glutamic acids are involved in lanthanide binding. Resolution enhancement techniques were combined with band curve-fitting procedures to quantitate the FTIR spectral information from the amide 1 bands. The relative areas of these component bands indicate that lanthanide induced a substantial decrease in the amount of unordered structure and turns, while a corresponding increase in the amount of α-helix and 'open loop' was also observed. This indicates that a relatively compact structure of the synthetic peptide is formed if lanthanides are applied. The results may reflect on the physiological and biochemical function of calcium in PS II, including preventing D1 from trypsin digestion.
journal_name
Photosynth Resjournal_title
Photosynthesis researchauthors
Wang J,Zhang LX,Liu ZL,Liang HG,Yang L,Hu XYdoi
10.1007/BF00048603subject
Has Abstractpub_date
1995-06-01 00:00:00pages
297-302issue
3eissn
0166-8595issn
1573-5079journal_volume
44pub_type
杂志文章abstract::Fourier transform infrared (FTIR) spectroscopy probes the vibrational properties of amino acids and cofactors, which are sensitive to minute structural changes. The lack of specificity of this technique, on the one hand, permits us to probe directly the vibrational properties of almost all the cofactors, amino acid si...
journal_title:Photosynthesis research
pub_type: 杂志文章,评审
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更新日期:2009-08-01 00:00:00
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journal_title:Photosynthesis research
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doi:10.1007/BF02184142
更新日期:1994-07-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00041817
更新日期:1983-01-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1023/A:1006486307473
更新日期:2000-01-01 00:00:00
abstract::To investigate the impact of iron deficiency on bioenergetic pathways in Chlamydomonas, we compared growth rates, iron content, and photosynthetic parameters systematically in acetate versus CO(2)-grown cells. Acetate-grown cells have, predictably (2-fold) greater abundance of respiration components but also, counter-...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-010-9562-8
更新日期:2010-07-01 00:00:00
abstract::In this Minireview, we discuss a number of issues on the primary photosynthetic reactions of the green plant Photosystem II. We discuss the origin of the 683 and 679 nm absorption bands of the PS II RC complex and suggest that these forms may reflect the single-site spectrum with dominant contributions from the zero-p...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1023/A:1006468024245
更新日期:2000-01-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00030048
更新日期:1982-01-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1023/B:PRES.0000006914.52898.67
更新日期:2003-01-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-007-9253-2
更新日期:2008-02-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF02185435
更新日期:1993-07-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00047680
更新日期:1988-07-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章,评审
doi:10.1007/s11120-007-9178-9
更新日期:2007-07-01 00:00:00
abstract::Fluorescence and electron paramagnetic resonance measurements were used to study selenium influence on photosystem activity in rape seedlings affected by Cd stress. Water cultures containing Hoagland nutrients were supplemented with 400 microM of CdCl(2), 2 microM of Na(2)SeO(4) and a mixture of both CdCl(2) and Na(2)...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-010-9551-y
更新日期:2010-07-01 00:00:00
abstract::Chlorosomes, the light-harvesting apparatus of green bacteria, are a unique antenna system, in which pigments are organized in aggregates rather than associated with proteins. Isolated chlorosomes from the green sulphur bacterium Chlorobium tepidum contain 10 surface-exposed proteins. Treatment of chlorosomes from Chl...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-005-3757-4
更新日期:2005-11-01 00:00:00
abstract::As part of an ongoing investigation into the effects of long-term UV-B radiation exposure on the growth and morphology of woody perennials, the gas exchange and photosynthesis of five common deciduous tree species were measured. All five tree species had been exposed to UV-B radiation for 5 years, in the field, at an ...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1023/A:1010620228989
更新日期:2001-01-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00019060
更新日期:1994-10-01 00:00:00
abstract::A model is presented describing the relationship between chlorophyll fluorescence quenching and photoinhibition of Photosystem (PS) II-dependent electron transport in chloroplasts. The model is based on the hypothesis that excess light creates a population of inhibited PS II units in the thylakoids. Those units are su...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00042009
更新日期:1991-12-01 00:00:00
abstract::Solubilisation of thylakoid membranes from young leaves of Pisum sativum in the presence of Triton X-100 resulted in an almost complete loss of quenching of light-harvesting chlorophyll-protein (LHCP) fluorescence, as measured at 77°K. There were concomitant changes in the kinetics of light-saturation curves of electr...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00037130
更新日期:1986-01-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00118288
更新日期:1986-01-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00014592
更新日期:1994-03-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/BF00046751
更新日期:1993-01-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-020-00725-y
更新日期:2020-04-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-009-9516-1
更新日期:2010-06-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00046761
更新日期:1993-01-01 00:00:00
abstract::Using a novel, pulsed micro-second time-resolved photoacoustic (PA) instrument, we measured thermal dissipation and energy storage (ES) in the intact cells of wild type (WT) Chlamydomonas reinhardtii, and mutants lacking either PSI or PSII reaction centers (RCs). On this time scale, the kinetic contributions of the th...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-011-9682-9
更新日期:2011-09-01 00:00:00
abstract::Around 1960 experiments of Arnold and Clayton, Chance and Nishimura and Calvin and coworkers demonstrated that the primary photosynthetic electron transfer processes are not abolished by cooling to cryogenic temperatures. After a brief historical introduction, this review discusses some aspects of electron transfer in...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00041000
更新日期:1996-05-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00035537
更新日期:1992-03-01 00:00:00
abstract::The pigment composition of the light-harvesting complexes of Photosystem II (LHC II) has been determined for lettuce (Lactuca sativa). In common with other members of the composite, the photosynthetic tissues of this species may contain large amounts of the carotenoid lactucaxanthin (ε, ε-carotene-3,3'-diol) in additi...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00029940
更新日期:1995-03-01 00:00:00
abstract::With the discovery of targeted gene replacement, moss biology has been rapidly advancing over the last 10 years. This study demonstrates the usefulness of moss as a model organism for plant photosynthesis research. The two mosses examined in this study, Physcomitrella patens and Ceratodon purpureus, are easily culture...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-004-5577-3
更新日期:2005-01-01 00:00:00