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-intuitively, more chlorophyll on a per cell basis. We found that phototrophic cells are less impacted by iron deficiency and this correlates with their higher iron content on a per cell basis, suggesting a greater capacity/ability for iron assimilation in this metabolic state. Phototrophic cells maintain both photosynthetic and respiratory function and their associated Fe-containing proteins in conditions where heterotrophic cells lose photosynthetic capacity and have reduced oxygen evolution activity. Maintenance of NPQ capacity might contribute to protection of the photosynthetic apparatus in iron-limited phototrophic cells. Acetate-grown iron-limited cells maintain high growth rates by suppressing photosynthesis but increasing instead respiration. These cells are also able to maintain a reduced plastoquinone pool.
journal_name
Photosynth Resjournal_title
Photosynthesis researchauthors
Terauchi AM,Peers G,Kobayashi MC,Niyogi KK,Merchant SSdoi
10.1007/s11120-010-9562-8subject
Has Abstractpub_date
2010-07-01 00:00:00pages
39-49issue
1eissn
0166-8595issn
1573-5079journal_volume
105pub_type
杂志文章abstract::Cyanobacteria, algae, and plants produce dioxygen from water. Driven and clocked by light quanta, the catalytic Mn(4)Ca Tyrosine centre accumulates four oxidizing equivalents before it abstracts four electrons from water and liberates dioxygen and protons. Intermediates of this reaction cascade are short-lived (<100 m...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-008-9321-2
更新日期:2008-10-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00029385
更新日期:1994-02-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1023/A:1014915900644
更新日期:2002-01-01 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/s11120-014-0003-y
更新日期:2014-09-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1023/A:1016099228450
更新日期:2002-01-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-011-9712-7
更新日期:2012-02-01 00:00:00
abstract::The Soret absorption spectra of six synthetic rigid porphyrin dimers whose crystal structures have been determined are simulated using simple exciton theory. The objective is to test the validity of the point dipole and associated approximations; the electronic interaction parameters are thus calculated using data obt...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00048299
更新日期:1989-12-01 00:00:00
abstract::Pulse modulated fluorescence has increasingly been used as an ecological tool to examine changes in the vertical distribution of microphytobenthic cells within the upper layers of estuarine sediments (most often using the minimum fluorescence yield F(o)) as well as to indicate the health of the community (using the ma...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1023/B:PRES.0000028397.86495.b5
更新日期:2004-01-01 00:00:00
abstract::In appreciation of his contribution to the Photosystsem II research and commemoration of the book Photosystem II: The Light-Driven Water-Plastoquinone Oxido-Reductase, co-edited with Kimiyuki Satoh, I present here some of my recollections of Thomas John Wydrzynski and by several others with whom he has associated over...
journal_title:Photosynthesis research
pub_type: 传,历史文章,杂志文章
doi:10.1007/s11120-008-9341-y
更新日期:2008-10-01 00:00:00
abstract::The light response curves of the acceptor and donor side mechanisms of photoinhibition of Photosystem II were calculated, using Arabidopsis as a model organism. Acceptor-side photoinhibition was modelled as double reduction of QA, noting that non-photochemical quenching has the same effect on the quantum yield of QA d...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-004-7174-x
更新日期:2005-06-01 00:00:00
abstract::Free ribulose hisphosphate (RuBP(4-)) rather than its magnesium complex (RuBP-Mg(2-)) was the apparent substrate for spinach ribulose bisphosphate carboxylase/oxygenase. The apparent Km for total RuBP (pH 8.0 at 30° C) increased with increasing Mg(2+) concentrations from 11.6 μM at 13.33 mM Mg(2+) to 32.6 μM at 40.33 ...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00041806
更新日期:1983-01-01 00:00:00
abstract::Photosystem II (PSII) catalyzes the oxidation of water to O2 at the manganese-containing, oxygen-evolving complex (OEC). Photoexcitation of PSII results in the oxidation of the OEC; four sequential oxidation reactions are required for the generation and release of molecular oxygen. Therefore, with flash illumination, ...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-007-9147-3
更新日期:2007-06-01 00:00:00
abstract::In recent years the enzymes of the C3 photosynthetic carbon reduction (PCR) cycle have been studied using the techniques of molecular biology. In this review we discuss the primary protein sequences and structural predictions that have been made for a number of these enzymes, which, with the input of crystallographic ...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00029971
更新日期:1991-01-01 00:00:00
abstract::The role of the ferredoxin:thioredoxin system in the reversible light activation of chloroplast enzymes by thiol-disulfide interchange with thioredoxins is now well established. Recent fruitful collaboration between biochemists and structural biologists, reflected by the shared authorship of the paper, allowed to solv...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1023/B:PRES.0000017194.34167.6d
更新日期:2004-01-01 00:00:00
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journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00055123
更新日期:1987-01-01 00:00:00
abstract::Photosystem I particles containing 30-40 chlorophyll a molecules per primary electron donor P700 were subjected to 1.5 ps low density laser flashes at 610 nm resulting in excitation of the antenna chlorophyll a molecules followed by energy transfer to P700 and subsequent oxidation of P700. Absorbance changes were moni...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00047947
更新日期:1987-01-01 00:00:00
abstract::The temperature dependence of the partial reactions leading to turn-over of the UQH2:cyt c 2 oxidoreductase of Rhodobacter sphaeroides have been studied. The redox properties of the cytochrome components show a weak temperature dependence over the range 280-330 K, with coefficients of about 1 m V per degree; our resul...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00114768
更新日期:1989-01-01 00:00:00
abstract::In this article I review the history of research on the Fenna-Matthews-Olson (FMO) protein with emphasis on my contributions. The FMO protein, which transfers energy from the chlorosome to the reaction center in green sulfur bacteria, was discovered in 1962 and shown to contain bacteriochlorophyll a. From the absorpti...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1023/B:PRES.0000030428.36950.43
更新日期:2004-01-01 00:00:00
abstract::Two green algal species, Chlamydomonas reinhardtii and Scenedesmus obliquus, exhibited a relative maximum during the decay of luminescence, when adapted to low CO2 conditions that was not observed in high CO2 adapted cells.From the kinetics of transient changes in the level of dark fluorescence, after illumination and...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00034857
更新日期:1990-03-01 00:00:00
abstract::After a brief prologue on Otto Kandler's life, we describe briefly his pioneering work on photosynthesis (photophosphorylation and the carbon cycle) and his key participation in the discovery of the concept of three forms of life (Archaea, Prokarya, and Eukarya). With Otto Kandler's passing, both the international pho...
journal_title:Photosynthesis research
pub_type: 传,历史文章,杂志文章
doi:10.1007/s11120-018-0530-z
更新日期:2018-09-01 00:00:00
abstract::Dan Arnon, Bob Whatley, Mary Belle Allen, and their colleagues, were the first to obtain evidence for 'complete photosynthesis by isolated chloroplasts' albeit at rates which were 1% or less of those displayed by the intact leaf. By the 1960s, partly in the hope of confirming full functionality, there was a perceived ...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1023/A:1024962328483
更新日期:2003-01-01 00:00:00
abstract::In this paper we compared the pigment composition, photochemical activity, chloroplast ultrastructure, thylakoid membrane polypeptide composition and ribosomal content of wild-type and seven light-sensitive mutants of Chlamydomonas reinhardii.All the mutants had low chlorophyll and carotenoid content compared to wild-...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00032261
更新日期:1982-01-01 00:00:00
abstract::Oxygenic photosynthesis requires chlorophyll (Chl) for the absorption of light energy, and charge separation in the reaction center of photosystem I and II, to feed electrons into the photosynthetic electron transfer chain. Chl is bound to different Chl-binding proteins assembled in the core complexes of the two photo...
journal_title:Photosynthesis research
pub_type: 杂志文章,评审
doi:10.1007/s11120-015-0154-5
更新日期:2015-12-01 00:00:00
abstract::The psaA and psaB genes of the chloroplast genome in oxygenic photosynthetic organisms code for the major peptides of the Photosystem 1 reaction center. A heterodimer of the two polypeptides PsaA and PsaB is thought to bind the reaction center chlorophyll, P700, and the early electron acceptors A0, A1 and Fe-SX. Fe-SX...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00020438
更新日期:1995-11-01 00:00:00
abstract::The world is facing energy crisis and environmental issues due to the depletion of fossil fuels and increasing CO2 concentration in the atmosphere. Growing microalgae can contribute to practical solutions for these global problems because they can harvest solar energy and capture CO2 by converting it into biofuel usin...
journal_title:Photosynthesis research
pub_type: 杂志文章,评审
doi:10.1007/s11120-013-9828-z
更新日期:2013-11-01 00:00:00
abstract::To understand design principles for assembling photosynthetic biohybrids that incorporate precisely-controlled sites for electron injection into redox enzyme cofactor arrays, we investigated the influence of chirality in assembly of the photosensitizer ruthenium(II)bis(2,2'-bipyridine)(4-bromomethyl-4'-methyl-2,2'-bip...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-019-00697-8
更新日期:2020-02-01 00:00:00
abstract::The polypeptide composition of thylakoid membranes of the red alga Cyanidium caldarium was studied by PAGE in the presence of lithium dodecyl sulfate. The thylakoid membranes were shown to contain 65 polypeptides with mol wt from 110 to 10 kDa. PS I isolated from C. caldarium cells is composed of at least 5 components...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00035678
更新日期:1991-10-01 00:00:00
abstract::The study of the light-harvesting complex II (LHC-II) phosphatase activity has been difficult due to the membrane association of its substrate. Thylakoid membranes labeled with [γ-(32)P]ATP were incubated with chymotrypsin, releasing phosphopeptides which served as labeled substrates for LHC-II phosphatase. Utilizing ...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/BF00018301
更新日期:1995-05-01 00:00:00
abstract::The quantum yield for light-induced H2 generation was measured for a previously optimized bio-hybrid cytochrome c 6-crosslinked PSI(C13G)-1,8-octanedithiol-[FeFe]-H2ase(C97G) (PSI-H2ase) nanoconstruct. The theoretical quantum yield for the PSI-H2ase nanoconstruct is 0.50 molecules of H2 per photon absorbed, which equa...
journal_title:Photosynthesis research
pub_type: 杂志文章
doi:10.1007/s11120-014-0064-y
更新日期:2016-01-01 00:00:00