Abstract：
:Previous investigations have shown that increased source strength as a result of elevated CO(2) can alter the timing of the phases of change that occur in photosynthetic rates during dicot leaf ontogeny [Miller et al. (1997) Plant Physiol 115: 1195-1200]. To evaluate the converse situation of decreased source strength, we examined leaf development in rbcS antisense mutants of tobacco. These mutants have depressed Rubisco levels and decreased rates of carbohydrate production. We found that antisense leaves are longer-lived than wild type leaves and that this appeared to be due to a prolongation of the senescence phase of development, as monitored by photosynthetic rates, chlorophyll content, and the abundance and activity of Rubisco. Declines in these parameters during leaf ontogeny in both the wild type and mutant plants were generally accompanied by coordinate reductions in the levels of rbcS mRNA and rbcL mRNA, as well as by reductions in chloroplast rRNA, chloroplast DNA and total protein. We suggest that the prolongation of senescence in the antisense leaves is due to an impact of source strength on leaf developmental programming that occurs, at least in part, at the level of transcript abundance of nuclear and chloroplast genes for chloroplast rRNAs and proteins. We hypothesize that plants are capable of sensing a range of source strength conditions to initiate and modulate leaf developmental programming.
journal_name
Photosynth Resjournal_title
Photosynthesis researchauthors
Miller A,Schlagnhaufer C,Spalding M,Rodermel Sdoi
10.1023/A:1006367719639subject
Has Abstractpub_date
2000-01-01 00:00:00pages
1-8issue
1eissn
0166-8595issn
1573-5079journal_volume
63pub_type
杂志文章abstract：:The linear, four-step oxidation of water to molecular oxygen by photosystem II requires cooperation between redox reactions driven by light and a set of redox reactions involving the S-states within the oxygen-evolving complex. The oxygenevolving complex is a highly ordered structure in which a number of polypeptides ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00037001
更新日期：1985-01-01 00:00:00
abstract：:The discovery of a new maize (Zea mays L.) transposon system, Mutator, and the cloning of the 1.4 kilobase transposon, Mul, have made feasible the isolation of nuclear photosynthetic genes which are recognized only by their mutant phenotype. Mutant maize plants which express a high chlorophyll fluorescent (hcf) phenot...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00042979
更新日期：1988-10-01 00:00:00
abstract：:The interaction of PsaC with the core heterodimer of Photosystem 1 was studied in wild type Synechocystis sp. PCC 6803 and the site-directed mutant R561E of PsaB. The mutant reaction center was much less stable in urea and the functional reconstitution of the mutant core using PsaC was impaired. However, the extent of...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00018261
更新日期：1994-12-01 00:00:00
abstract：:The dependence on temperature of tryptophan fluorescence lifetime in trimeric photosystem I (PSI) complexes from cyanobacteria Synechocystis sp. PCC 6803 during the heating of pre-frozen to - 180 °C in the dark or in the light-activated preparations has been studied. Fluorescence lifetime in samples frozen in the ligh...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-018-0595-8
更新日期：2019-03-01 00:00:00
abstract：:The chloroplast ATP synthase synthesizes ATP from ADP and free phosphate coupled by the electrochemical potential across the thylakoid membrane in the light. The light-dependent regulation of ATP synthase activity is carried out in part through redox modulation of a cysteine disulfide bridge in CF1 gamma-subunit. In o...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-008-9315-0
更新日期：2008-08-01 00:00:00
abstract：:The photosystem II (PSII) manganese-stabilizing protein (PsbO) is known to be the essential PSII extrinsic subunit for stabilization and retention of the Mn and Cl(-) cofactors in the oxygen evolving complex (OEC) of PSII, but its function relative to Ca(2+) is less clear. To obtain a better insight into the relations...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-011-9703-8
更新日期：2011-12-01 00:00:00
abstract：:Modulation of the efficiency with which leaves convert absorbed light to photochemical energy [intrinsic efficiency of open photosystem II (PSII) centers, as the ratio of variable to maximal chlorophyll fluorescence] as well as leaf xanthophyll composition (interconversions of the xanthophyll cycle pigments violaxanth...
journal_title：Photosynthesis research
pub_type： 杂志文章,评审
doi：10.1007/s11120-012-9761-6
更新日期：2012-09-01 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：:Electron transfer pathways in photosynthesis involve interactions between membrane-bound complexes such as reaction centres with an extrinsic partner. In this study, the biological specificity of electron transfer between the reaction centre-light-harvesting 1-PufX complex and its extrinsic electron donor, cytochrome ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-013-9812-7
更新日期：2014-05-01 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
abstract：:We present a theoretical study of excitation dynamics in the chlorosome antenna complex of green photosynthetic bacteria based on a recently proposed model for the molecular assembly. Our model for the excitation energy transfer (EET) throughout the antenna combines a stochastic time propagation of the excitonic wave ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-014-9978-7
更新日期：2014-06-01 00:00:00
abstract：:Chloroplasts of a chlorophyll (Chl) b-less barley mutant were solubilized with digitonin and fractionated by polyacrylamide gel electrophoresis with sodium deoxycholate in the running buffer. By this procedure, in contrast to using sodium dodecylsulfate (SDS) for solubilization, a Chl a-protein analogous to the major ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00018272
更新日期：1987-01-01 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：:Species in the Laxa and Grandia groups of the genus Panicum are adapted to low, wet areas of tropical and subtropical America. Panicum milioides is a species with C3 photosynthesis and low apparent photorespiration and has been classified as a C3/C4 intermediate. Other species in the Laxa group are C3 with normal phot...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00024189
更新日期：1986-01-01 00:00:00
abstract：:Tropical plants are sensitive to chilling temperatures above zero but it is still unclear whether photosystem I (PSI) or photosystem II (PSII) of tropical plants is mainly affected by chilling temperatures. In this study, the effect of 4 degrees C associated with various light densities on PSII and PSI was studied in ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-010-9539-7
更新日期：2010-03-01 00:00:00
abstract：:We have previously investigated the response mechanisms of photosystem II complexes from spinach to strong UV and visible irradiations (Wei et al J Photochem Photobiol B 104:118-125, 2011). In this work, we extend our study to the effects of strong light on the unusual cyanobacterium Acaryochloris marina, which is abl...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-013-9946-7
更新日期：2013-11-01 00:00:00
abstract：:The chloroplast genome of the highly neutral-lipid-producing marine pennate diatom Fistulifera sp. strain JPCC DA0580 was fully sequenced using high-throughput pyrosequencing. The general features and gene content were compared with three other complete diatom chloroplast genomes. The chloroplast genome is 134,918 bp ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-011-9622-8
更新日期：2011-09-01 00:00:00
abstract：:In order to evaluate genotypic variation, we measured leaf photosynthetic rate (Pn) and its associated factors for the rice diversity research set of germplasm (RDRS) selected from the Genebank in National Institute of Agrobiological Sciences (NIAS). Pn showed large genotypic variation from 11.9 to 32.1 micromol m(-2 ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-007-9208-7
更新日期：2007-10-01 00:00:00
abstract：:The authors present a study of the fluorescence and absorbance transients occurring in whole cells of purple nonsulfur bacterium Rhodobacter sphaeroides on the millisecond timescale under pulsed actinic illumination. The fluorescence induction curve is interpreted in terms of combination of effects of redox changes in...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-010-9569-1
更新日期：2010-08-01 00:00:00
abstract：:The photoenzymatic cycle of the light-dependent NADPH:protochlorophyllide oxidoreductase (LPOR) was investigated in situ during early stages of development of bean leaves under light-dark cycles (LDC). In the experimental system used in this study, prolamellar bodies developed during night periods and disappeared duri...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-007-9274-x
更新日期：2008-04-01 00:00:00
abstract：:A computer model comprising light reactions in PS II and PS I, electron-proton transport reactions in mesophyll and bundle sheath chloroplasts, all enzymatic reactions and most of the known regulatory functions of NADP-ME type C(4) photosynthesis has been developed as a system of differential budget equations for inte...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1023/A:1010695402963
更新日期：2000-01-01 00:00:00
abstract：:Recently, a number of techniques, some of them relatively new and many often used in combination, have given a clearer picture of the dynamic role of electron transport in Photosystem I of photosynthesis and of coupled cyclic photophosphorylation. For example, the photoacoustic technique has detected cyclic electron t...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00033035
更新日期：1993-06-01 00:00:00
abstract：:Phycobilisomes, comprised of both chromophoric (phycobiliproteins) and non-chromophoric (linker polypeptides) proteins, are light-harvesting complexes present in the prokaryotic cyanobacteria and the eukaryotic red algae. Many cyanobacteria exhibit complementary chromatic adaptation, a process which enables these orga...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00047680
更新日期：1988-07-01 00:00:00
abstract：:Structural analogues of the NADP(+) were studied as potential coenzymes and inhibitors for NADP(+) dependent malic enzyme from Zea mays L. leaves. Results showed that 1, N(6)-etheno-nicotinamide adenine dinucleotide phosphate (∈ NADP(+)), 3-acetylpyridine-adenine dinucleotide phosphate (APADP(+)), nicotinamide-hypoxan...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00033716
更新日期：1991-05-01 00:00:00
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 pepti...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00048603
更新日期：1995-06-01 00:00:00
abstract：:A recent publication (Esteban in New Phytol 217:341-342, 2018) describes how the use and citation of the assay of chlorophylls a and b extracted in aqueous 80% acetone by Arnon (Plant Physiol 2:1-15, 1949) is increasing, even in journals with high impact factors. This is a very disconcerting situation: the assay is ou...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/s11120-018-0579-8
更新日期：2019-05-01 00:00:00
abstract：:The nature of interaction of cytochrome b-559 high potential (HP) with electron transport on the reducing side of photosystem II was investigated by measuring the susceptibility of cytochrome b-559HP to 3-(3,4-dichlorophenyl)-1,1-dimethylurea (DCMU) under different conditions. Submicromolar DCMU concentrations decreas...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00035839
更新日期：1991-03-01 00:00:00
abstract：:With this Tribute, we remember and honor Thomas John (Tom) Wydrzynski. Tom was a highly innovative, independent and committed researcher, who had, early in his career, defined his life-long research goal. He was committed to understand how Photosystem II produces molecular oxygen from water, using the energy of sunlig...
journal_title：Photosynthesis research
pub_type： 传,历史文章,杂志文章
doi：10.1007/s11120-018-0606-9
更新日期：2019-06-01 00:00:00
abstract：:NADP:ferredoxin oxidoreductase (EC. 1.6.7.1.) isolated from a thermophilic blue-green alga, Synechococcus sp., was stable at temperatures up to 65°C. The diaphorase and cytochrome c reductase activities of the enzyme were low at 25°C but increased with elevated temperature to reach a maximum at about 60°C. The pH-prof...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00020595
更新日期：1980-09-01 00:00:00
abstract：:The linear dichroism of Photosystem I particles containing 10 chlorophylls per P700 has been investigated at 10 K. The particles were oriented by uniaxial squeezing of polyacrylamide gels. The oxidation state of P700 was altered either by incubation of the gels with redox mediators or by low temperature illumination. ...
journal_title：Photosynthesis research
pub_type： 杂志文章
doi：10.1007/BF00047172
更新日期：1989-07-01 00:00:00
