Abstract:
:Ribulose 1,5-diphosphate carboxylase (RUDPcase) from autotrophically grown Euglena gracilis was purified to homogeneity as measured by analytical ultracentrifugation, polyacrylamide gel electrophoresis, and immunoprecipitation reactions. The enzyme represented about 9% of total protein and 24% of soluble protein in the autotrophic cell. Light-grown, heterotrophic cells seemed to contain considerably less RUDPcase. Native carboxylase from autotrophic Euglena showed an s(20, w) at low protein concentrations of 17 to 17.5, suggesting a molecular weight of >500,000 daltons. Upon denaturation, the enzyme dissociated into two subunits having different amino acid compositions and molecular weights of 59,000 and 12,000 daltons. Based upon the amino acid mass ratios, a quaternary organization of 7 to 8 large and 8 to 10 small subunits per native enzyme molecule was indicated.The phylogenetic relationship of carboxylase from Euglena and from three higher plants was investigated. In general, the size, subunit formation, and quaternary structure of RUDPcase from the various sources seemed to be similar. A partial immunochemical reaction between anti-RUDPcase serum from Euglena and the enzymes from lettuce, cucumber, and New Zealand spinach suggested that the algal and higher plant carboxylases were related but not identical. This was borne out by amino acid analyses which showed a close correspondence between the large, but not the small, subunits of Euglena and lettuce.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Rabinowitz H,Reisfeld A,Sagher D,Edelman Mdoi
10.1104/pp.56.3.345subject
Has Abstractpub_date
1975-09-01 00:00:00pages
345-50issue
3eissn
0032-0889issn
1532-2548journal_volume
56pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::An NADP-dependent dehydrogenase catalyzing the conversion of l-sorbosone to l-ascorbic acid has been isolated from Phaseolus vulgaris L. and Spinacia oleracea L. and partially purified. It is stable at -20 degrees C for up to 8 months. Molecular masses, as determined by gel filtration, were 21 and 29 kilodaltons for b...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.94.3.1492
更新日期:1990-11-01 00:00:00
abstract::The temporal and spatial expression patterns of three 1-aminocyclopropane-1-carboxylate (ACC) synthase genes were investigated in pollinated orchid (Phalaenopsis spp.) flowers. Pollination signals initiate a cascade of development events in multiple floral organs, including the induction of ethylene biosynthesis, whic...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.116.1.419
更新日期:1998-01-01 00:00:00
abstract::The ionic specificity of IAA-induced acidification by Avena coleoptiles was studied, using zwitterionic, presumably impermeant buffers. The acidification was almost totally dependent on divalent cations with an order of effectiveness of Ca(2+) >/= Sr(2+) > Mn(2+), Mg(2+); whereas other polyvalent cations tested were i...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.57.3.347
更新日期:1976-03-01 00:00:00
abstract::Some properties of microsomal electron transfer chains, dependent for oxidase activity on addition of NADH or NADPH, duroquinone, and oxygen (L. De Luca et al., 1984, Plant Sci Lett 36: 93-98) are described. Activity is characterized by negatively cooperative kinetics toward reduced pyridine nucleotides, with limiting...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.80.2.384
更新日期:1986-02-01 00:00:00
abstract::Explants of genetic tumors, tumors initiated by Agrobacterium tumefaciens strains B-6 and T-37, and excised pith plugs from Nicotiana glauca, N. langsdorffii, and N. glauca-langsdorffii were cultured on Murashige and Skoog medium. All cultures, pith callus and tumors with the exception of N. langsdorffii pith grew on ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.44.7.1073
更新日期:1969-07-01 00:00:00
abstract::Glyceollin isomers I, II, and III are the major pathogen-elicited secondary metabolites (i.e. phytoalexins) of soybean (Glycine max) that, collectively with other 5-deoxyisoflavonoids, provide race-specific resistance to Phytophthora sojae. The NAC-family transcription factor (TF) GmNAC42-1 is an essential regulator o...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.19.01293
更新日期:2020-06-01 00:00:00
abstract::A physical analysis of water movement through elongating soybean (Glycine max L. Merr.) hypocotyls was made to determine why significant water potentials persist in growing tissues even though the external water potentials were zero and transpiration is virtually zero. The analysis was based on a water transport theor...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.62.3.423
更新日期:1978-09-01 00:00:00
abstract::The eukaryotic genome is duplicated exactly once per cell division cycle. A strategy that limits every replication origin to a single initiation event is tightly regulated by a multiprotein complex, which involves at least 20 protein factors. A key player in this regulation is the evolutionary conserved hexameric MCM2...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.105.074294
更新日期:2006-02-01 00:00:00
abstract::Germination of embryonic axes from dormant grain is inhibited by low concentrations of abscisic acid (ABA) compared with axes from nondormant grain. Incubation of dormant grain axes in 0.05 to 50 micromolar ABA caused the prolonged synthesis of a set of heat-stable proteins. Two of these proteins were identified as de...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.93.2.662
更新日期:1990-06-01 00:00:00
abstract::We report the molecular characterization and functional analysis of a gene (PsdeltaOAT) from Scots pine (Pinus sylvestris) encoding Orn-delta-aminotransferase (delta-OAT; EC 2.6.1.13), an enzyme of arginine metabolism. The deduced amino acid sequence contains a putative N-terminal signal peptide for mitochondrial targ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.108.122853
更新日期:2008-09-01 00:00:00
abstract::Despite ongoing research on carotenoid biosynthesis in model organisms, there is a paucity of information on pathway regulation operating in the grasses (Poaceae), which include plants of world-wide agronomic importance. As a result, efforts to either breed for or metabolically engineer improvements in carotenoid cont...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.039818
更新日期:2004-07-01 00:00:00
abstract::Analysis of extracts from 6300 (1.2 grams fresh weight) Phaseolus coccineus suspensors by combined gas chromatography-mass spectrometry has demonstrated the presence of five C(19)-gibberellins, GA(1), GA(4), GA(5), GA(6), GA(8), and one C(20)-GA, GA(44). The major GAs present were GA(1) and GA(8). Data are discussed i...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.82.1.298
更新日期:1986-09-01 00:00:00
abstract::To understand the mechanism and molecular properties of the tonoplast-type H(+)-translocating ATPase, we have studied the effect of Cl(-), NO(3) (-), and 4,4'-diisothiocyano-2,2'-stilbene disulfonic acid (DIDS) on the activity of the electrogenic H(+)-ATPase associated with low-density microsomal vesicles from oat roo...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.76.2.490
更新日期:1984-10-01 00:00:00
abstract::The activity of 1,3-beta-d-glucan synthase assayed in the presence of digitonin in a microsomal preparation from suspension-cultured cells of Glycine max can be fully inhibited by unsaturated fatty acids, trienoic acids being most effective. Lysophosphatidylcholine, platelet-activating factor, acylcarnitine, and Echin...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.80.1.7
更新日期:1986-01-01 00:00:00
abstract::A hybrid of sweet corn, Zea mays L. (;1720'; Rogers Brothers Seed Co.), was found to be comprised of glycinebetaine-positive and glycinebetaine-deficient individuals in a 1:1 mixture. This phenomenon was traced to segregation for a single, nuclear, dominant gene determining leaf glycinebetaine content within the femal...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.91.3.1112
更新日期:1989-11-01 00:00:00
abstract::The problem of determining gas exchange rates from flow system data under nonsteady state conditions is analyzed. A correction factor is presented for obtaining constant rates under nonsteady state conditions. A general formula for obtaining any rate under nonsteady state conditions is also given. Turnover time is def...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.56.5.680
更新日期:1975-11-01 00:00:00
abstract::Small GTP-binding proteins regulate diverse processes in eukaryotic cells such as signal transduction, cell proliferation, cytoskeletal organization, and intracellular membrane trafficking. These proteins function as molecular switches that cycle between "active" and "inactive" states, and this cycle is linked to the ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.013052
更新日期:2003-03-01 00:00:00
abstract::We have examined the effects of the substituted pyridazinone herbicide, 4-chloro-5-(dimethylamino)-2-phenyl-3(2H)pyridazinone (BASF 13-338, Sandoz 9785), on the desaturation of linoleic acid (18:2) on different molecular species of monogalactosyldiacylglycerol (MGDG) and phosphatidylcholine (PC) in leaf tissue of Arab...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.85.3.684
更新日期:1987-11-01 00:00:00
abstract::Experiments were designed to test the hypothesis that the labeled products recovered from plant tissue incubated with [(14)C]GA(12)-7-aldehyde ([(14)C]GA(12)ald) would serve as appropriate [(14)C]markers for the recovery of naturally-occurring gibberellins (GAs). The [(14)C]GA(12)ald (about 200 millicuries per millimo...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.81.4.984
更新日期:1986-08-01 00:00:00
abstract::Several genes encoding putative glutathione peroxidase have been isolated from a variety of plants, all of which show the highest homology to the phospholipid hydroperoxide isoform. Several observations suggest that the proteins are involved in biotic and abiotic stress responses. Previous studies on the regulation of...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.041921
更新日期:2004-07-01 00:00:00
abstract::This report examines the effect of anaerobic stress on the expression of sucrose synthase in maize (Zea mays L.). Following 24 hours of anaerobic treatment, alcohol dehydrogenase displayed the classical characteristics of induction: increased mRNA and protein levels. However, there was no detectable increase in sucros...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.87.2.542
更新日期:1988-06-01 00:00:00
abstract::We used three-dimensional structured illumination microscopy (3D-SIM) to obtain subdiffraction ("super-resolution") images of plasmodesmata (PD) expressing a green fluorescent protein-tagged viral movement protein (MP) in tobacco (Nicotiana tabacum). In leaf parenchyma cells, we were able to resolve individual compone...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.110.157941
更新日期:2010-08-01 00:00:00
abstract::Free protoplasts were prepared from the living bark tissue of the trunk of summer and winter black locust trees by enzymic digestion of thin slices of the tissue for 3 hours in a medium containing 2% Onozuka cellulase, 2% Rhozyme pectinase, and 2% Driselase in mannitol solutions using 0.4 molar mannitol for summer tis...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.63.4.722
更新日期:1979-04-01 00:00:00
abstract::Phaseolus vulgaris mitochondria incubated in sucrose swell rapidly upon the addition of phospholipase A. Bovine serum albumin inhibits the swelling. The release of free fatty acids as a result of phospholipase A action on the mitochondria is detected only in the presence of bovine serum albumin, which promotes the hyd...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.45.3.322
更新日期:1970-03-01 00:00:00
abstract::A high affinity cAMP-binding protein (cABP II) was purified to homogeneity from wheat germ. The apparent molecular weight of cABP II, as determined from gel exclusion chromatography, is 5.2 x 10(5) (at low ionic strength) and 2.8 x 10(5) (at high ionic strength). One polypeptide subunit (molecular weight, 80,000) was ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.68.3.577
更新日期:1981-09-01 00:00:00
abstract::When wheat (Triticum aestivum) seedlings are exposed to a cold temperature (2-4 degrees C) above 0 degrees C, sucrose accumulates and sucrose synthase activity increases. The effect of a cold period on the level of sucrose synthase (SS) was investigated. Using antibodies against wheat germ SS, Western blots studies sh...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.96.3.887
更新日期:1991-07-01 00:00:00
abstract::The ontogeny of seed structure and the accumulation of seed storage substances is the result of a determinant genetic program. Using RNA interference, the synthesis of soybean (Glycine max) glycinin and conglycinin storage proteins has been suppressed. The storage protein knockdown (SP-) seeds are overtly identical to...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.111.173807
更新日期:2011-05-01 00:00:00
abstract::Under normal field growth conditions, canola (Brassica napus) seeds produce chloroplasts during early seed development and then catabolize the photosynthetic machinery during seed maturation, producing mature seeds at harvest that are essentially free of chlorophyll (Chl). However, frost exposure early in canola seed ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.106.084483
更新日期:2006-09-01 00:00:00
abstract::A physiologically significant level of intracellular carbonic anhydrase has been identified in Chlamydomonas reinhardtii after lysis of the cell wall-less mutant, cw15, and two intracellular polypeptides have been identified which bind to anti-carbonic anhydrase antisera. The susceptibility of the intracellular activi...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.89.3.904
更新日期:1989-03-01 00:00:00
abstract::The treatment of a biological system with small molecules to specifically perturb cellular functions is commonly referred to as chemical biology. Small molecules are used commercially as drugs, herbicides, and fungicides in different systems, but in recent years they are increasingly exploited as tools for basic resea...
journal_title:Plant physiology
pub_type: 杂志文章,评审
doi:10.1104/pp.16.01805
更新日期:2017-05-01 00:00:00