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 parallel to the luminescence maxima, it was concluded that the maximum in Scenedesmus was mainly related to a decrease in nonphotochemical quenching, whereas in Chlamydomonas the maximum was mainly related to a dark reduction of the primary PS II acceptor QA.ATP/ADP ratios from low CO2 adapted Scenedesmus showed transient high levels after a dark/light transition that was not observed in high CO2 adapted cells. After 30 s of illumination the ATP/ADP ratios however stabilized at the same steady state level as in high CO2 adapted cells.Dark addition of HCO3 (-) to low CO2 adapted cells of Chlamydomonas resulted in a rapid transient quenching of luminescence that was not observed in low CO2 adapted cells of neither species.It is concluded that the luminescence maxima present in both low CO2 adapted Scenedesmus and Chlamydomonas reflect adaptation of the cells to low CO2 conditions. It is further suggested that the difference in mechanistic origin of luminescence maxima in the two species reflects differences in adaptation.
journal_name
Photosynth Resjournal_title
Photosynthesis researchauthors
Sundblad LG,Samuelsson G,Wigge B,Gardeström Pdoi
10.1007/BF00034857subject
Has Abstractpub_date
1990-03-01 00:00:00pages
269-82issue
3eissn
0166-8595issn
1573-5079journal_volume
23pub_type
杂志文章abstract：:Biological water oxidation, performed by a single enzyme, photosystem II, is a central research topic not only in understanding the photosynthetic apparatus but also for the development of water splitting catalysts for technological applications. Great progress has been made in this endeavor following the report of a ...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-019-00648-3
更新日期：2019-10-01 00:00:00
abstract：:A synthetic fluorochromous lipid, rhodaminyl triglyceride (rhodaminyl TG), was intercalated into isolated thylakoid membranes of chloroplasts up to 30 molecules per 100 molecules of chlorophyll. As a result of fluorochrome presence, an absorption band appeared in a yellow-green spectrum region, its intensity being com...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00047079
更新日期：1990-11-01 00:00:00
abstract：:In polyploid plants the photosynthetic rate per cell is correlated with the amount of DNA per cell. The photosynthetic rate per unit leaf area is the product of the rate per cell times the number of photosynthetic cells per unit area. Therefore, the photosynthetic rate per unit leaf area will increase if there is a le...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00014744
更新日期：1993-02-01 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：: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：:Biogenesis of the photosynthetic apparatus in greening etiolated leaves of barley (Hordeum vulgare L) was investigated by an approach permitting investigation of this process under conditions that minimize differences in plastid development. Distributions of barley leaves greening for 24 h as to chlorophyll content an...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/A:1016093127057
更新日期：2002-01-01 00:00:00
abstract：:The major light-harvesting system in cyanobacteria, the phycobilisome, is an essential component of the photosynthetic apparatus that regulates the utilization of the natural light source-the Sun. Earlier works revealed that the thylakoid membrane composition and its physical properties might have an important role in...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-020-00776-1
更新日期：2020-08-01 00:00:00
abstract：:Chlorophyll fluorescence imaging has been used to analyse the response elicited in Phaseolus vulgaris after inoculation with Pseudomonas syringae pv. phaseolicola 1448A (compatible interaction) and P. syringae pv. tomato DC3000 (incompatible interaction). With the aim of modulating timing of symptom development, diffe...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-007-9278-6
更新日期：2008-04-01 00:00:00
abstract：:The D1/D2 heterodimer core is the heart of the photosystem II reaction center. A characteristic feature of this heterodimer is the differentially rapid, light-dependent degradation of the D1 protein. The D1 protein is possibly the most researched photosynthetic polypeptide, with aspects of structure-function, gene, me...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-008-9342-x
更新日期：2008-10-01 00:00:00
abstract：:Chlorophyll (Chl) b serves an essential function in accumulation of light-harvesting complexes (LHCs) in plants. In this article, this role of Chl b is explored by considering the properties of Chls and the ligands with which they interact in the complexes. The overall properties of the Chls, not only their spectral f...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-007-9181-1
更新日期：2007-11-01 00:00:00
abstract：:A pigment system containing carotenoids and oxidised reaction centre pigments is present in chromatophores of Rhodospirillum rubrum and this pigment system may cause fluorescence quenching when a still unidentified chromatophore component is in its oxidised state. Besides by its action spectrum, this pigment system is...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00018376
更新日期：1984-03-01 00:00:00
abstract：:A rapid procedure has been developed for the isolation of the photosystem two reaction centre complex (PS II RC) from a double mutant of Chlamydomonas reinhardtii, F54-14, which lacks the Photosystem one complex and the chloroplast ATPase. Thylakoid membranes are solubilised with 1.5% (w/v) Triton X-100 and the PS II ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00042974
更新日期：1995-02-01 00:00:00
abstract：:C4 photosynthesis is a complex trait that has a high degree of natural variation, involving anatomical and biochemical changes relative to the ancestral C3 state. It has evolved at least 66 times across a variety of lineages and the evolutionary route from C3 to C4 is likely conserved but not necessarily genetically i...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-013-9872-8
更新日期：2014-02-01 00:00:00
abstract：:Leaf variegation mutants constitute a unique group of chloroplast development mutants and are ideal genetic materials to dissect the regulation of chloroplast development. We have utilized the Arabidopsis yellow variegated (var2) mutant and genetic suppressor analysis to probe the mechanisms of chloroplast development...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-015-0195-9
更新日期：2016-03-01 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：:Cyanobacteria exhibit a novel form of non-photochemical quenching (NPQ) at the level of the phycobilisome. NPQ is a process that protects photosystem II (PSII) from possible highlight-induced photo-damage. Although significant advancement has been made in understanding the NPQ, there are still some missing details. Th...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-018-0498-8
更新日期：2018-08-01 00:00:00
abstract：:Peridinin-chlorophyll-protein (PCP), containing differently absorbing chlorophyll derivatives, are good models with which to study energy transfer among monomeric chlorophylls (Chls) by both bulk and single-molecule spectroscopy. They can be obtained by reconstituting the N-terminal domain of the protein (N-PCP) with ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-007-9277-7
更新日期：2008-02-01 00:00:00
abstract：:Thylakoids are complex sub-organellar membrane systems whose role in photosynthesis makes them critical to life. Thylakoids require the coordinated expression of both nuclear- and plastid-encoded proteins to allow rapid response to changing environmental conditions. Transport of cytoplasmically synthesized proteins to...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-018-0567-z
更新日期：2018-12-01 00:00:00
abstract：:In higher plants, photosystem II (PSII) is a multi-subunit pigment-protein complex embedded in the thylakoid membranes of chloroplasts, where it is present mostly in dimeric form within the grana. Its light-harvesting antenna system, LHCII, is composed of trimeric and monomeric complexes, which can associate in variab...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-016-0216-3
更新日期：2016-12-01 00:00:00
abstract：:Henrik Lundegårdh made major contributions in the field of ecology and plant physiology from 1912 to 1969. His early work at Hallands Väderö in the Kattegat pioneered quantitative approaches to plant ecology and laid the understanding of carbon dioxide exchange in natural communities which is still useful today in glo...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/A:1024980325118
更新日期：2003-01-01 00:00:00
abstract：:Chlorobaculum [Cba.] tepidum is known to grow optimally at 48-52 °C and can also be cultured at ambient temperatures. In this paper, we prepared constant temperature, temperature shift, and temperature shift followed by backshift cultures and investigated the intrinsic properties and spectral features of chlorosomes f...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-013-9800-y
更新日期：2013-05-01 00:00:00
abstract：:The previous work in our lab showed that the spinach chloroplast ATP synthase epsilon mutant with 3 amino acid residues deleted from the N-terminus had much lower ability to inhibit ATP hydrolysis and block proton leakage in comparison to a mutant with 1 or 2 residues deleted from the N-terminus. The present study aim...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-004-6554-6
更新日期：2005-01-01 00:00:00
abstract：:Ten strains from a collection of mutants ofSynechocystis 6803 defective in Photosystem II (PS II) function were transformed with chromosomal DNA of wild-type and mutant cells. Cross hybridization data allowed to identify four groups of PS II-mutants. Highly efficient transformation was observed between different mutan...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF02187472
更新日期：1993-08-01 00:00:00
abstract：:The chlorophyll content is an important experimental parameter in agronomy and plant biology research. In this report, we explore the feasibility of determining total concentration of extracts containing chlorophyll a and chlorophyll b by chlorophyll fluorescence. We found that an excitation at 457 nm results in the s...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-012-9777-y
更新日期：2012-10-01 00:00:00
abstract：:Energy storage measurements by modulated photothermal radiometry (PTR) were carried out on intact leaves to assess the value of the PTR method for photosynthesis research. In particular, correlations to the redox state of P700 under various conditions were examined. PTR monitors modulated light conversion to heat by s...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00035379
更新日期：1991-08-01 00:00:00
abstract：:Two-component regulatory systems that respond to changes in redox potential have recently been discovered in bacteria. 'Redox sensors' are defined as electron carriers which initiate control of gene expression upon oxidation or reduction. 'Redox response regulators' are defined as DNA-binding proteins which modify gen...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00016274
更新日期：1993-05-01 00:00:00
abstract：:Triplet state electron paramagnetic resonance (EPR) experiments have been carried out at X-band on Rb. sphaeroides R-26 reaction centers that have been reconstituted with the carotenoid, spheroidene, and exchanged with 13(2)-OH-Zn-bacteriochlorophyll a and [3-vinyl]-13(2)-OH-bacteriochlorophyll a at the monomeric, 'ac...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00032823
更新日期：1993-09-01 00:00:00
abstract：:Ongoing work has led to the identification of most of the biochemical steps in carotenoid biosynthesis in chlorophototrophic bacteria. In carotenogenesis, a relatively small number of modifications leads to a great diversity of carotenoid structures. This review examines the individual steps in the pathway, discusses ...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-008-9312-3
更新日期：2008-08-01 00:00:00
abstract：:Light-induced reaction dynamics of isolated photosynthetic membranes obtained from wild-type (WT) and reaction center (RC)-subunit deletion strains SPUHK1 (an H-subunit deletion mutant) and SK Delta LM (an (L+M) deletion mutant) of the purple non-sulphur bacterium Rhodospirillum rubrum have been investigated by femtos...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-009-9520-5
更新日期：2010-03-01 00:00:00
abstract：:Polyamines (PAs) are small metabolites that are produced and oxidized in chloroplasts with an obscure mode of action. Recently, we showed that qE is stimulated by PAs in higher plants (Nicotiana tabacum) and in genetically modified plants with elevated thylakoid-associated PAs (Ioannidis and Kotzabasis Biochim Biophys...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-010-9617-x
更新日期：2011-02-01 00:00:00
