Abstract:
:Upon illumination of dark-grown maize seedlings (5 days old) with incandescent light, there occurred a nearly simultaneous increase, after a certain lag period, in the activities of enzymes engaged in the C(4) pathway and the Calvin-Benson cycle. The light-induced biosynthesis of chlorophyll (a and b) precedes the increase in enzyme activities and proceeds without lag phase. A diphasic feature in the elevation of enzyme activities as a function of the intensities of light provided was observed; the increase in enzyme activities was enhanced by light intensities greater than 10(3) ergs per square centimeter per second in comparison with light of lower intensities. Under light intensities greater than 10(3) ergs per square centimeter per second, the simultaneous addition of levulinic acid, which inhibited chlorophyll formation, markedly reduced the increase of enzyme activities. However, neither the diphasic light effect nor the inhibitory effect of levulinic acid was observed with ribulose-1,5-bisphosphate carboxylase. The enzyme activities in the dark-grown maize seedlings were enhanced by a brief irradiation with the red light and the red light effect was reversed by the following far red light treatment. The red light-induced increase in the enzyme activities did not accompany chlorophyll synthesis, and was completely inhibited by cycloheximide, indicating that enzyme synthesis rather than activation might be involved. Light may play a dual role in enzyme induction; one is as an energy source through the photosystems at high intensities and the other is presumably as a signal mediated by phytochrome at low intensities.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Kobayashi H,Asami S,Akazawa Tdoi
10.1104/pp.65.2.198subject
Has Abstractpub_date
1980-02-01 00:00:00pages
198-203issue
2eissn
0032-0889issn
1532-2548journal_volume
65pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::The effect of applied nitrogen (N) on the growth, leaf expansion rate, biomass partitioning and leaf N levels of Chenopodium album (C(3)) and Amaranthus retroflexus (C(4)) were investigated. At a given applied N level, C. album had 50% greater leaf N per unit area (N(a)) than A. retroflexus. Nitrate accumulated at low...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.84.3.954
更新日期:1987-07-01 00:00:00
abstract::Callus cultures of peanut (Arachis hypogaea L. cv Valencia Tennessee Red) cotyledons grown on Linsmaier and Skoog medium containing normal levels of auxin and cytokinin do not synthesize either 4-methyl-eneglutamic acid or 4-methyleneglutamine, which nonprotein amino acids are normally found in significant amounts in ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.76.1.161
更新日期:1984-09-01 00:00:00
abstract::The Golgi apparatus consists of stacked cisternae filled with enzymes that facilitate the sequential and highly controlled modification of glycans from proteins that transit through the organelle. Although the glycan processing pathways have been extensively studied, the underlying mechanisms that concentrate Golgi-re...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.19.00310
更新日期:2019-06-01 00:00:00
abstract::Biochemical and electrophysiological studies on plant vacuolar transporters became feasible in the late 1970s and early 1980s, when methods to isolate large quantities of intact vacuoles and purified vacuolar membrane vesicles were established. However, with the exception of the H+-ATPase and H+-PPase, which could be ...
journal_title:Plant physiology
pub_type: 杂志文章,评审
doi:10.1104/pp.17.01481
更新日期:2018-02-01 00:00:00
abstract::Extraction of maize (Zea mays) leaves by progressive grinding under suitably protective conditions yields total carbonic anhydrase activities (4800 units per milligram chlorophyll) comparable to the activity in spinach (Spinacia oleracea) leaves. The total ribulose diphosphate carboxylase activity was also equal to or...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.50.3.336
更新日期:1972-09-01 00:00:00
abstract::Myrosinase is regarded as a defense-related enzyme in the Brassicaceae and is capable of hydrolyzing glucosinolates into various compounds, some of which are toxic. Several myrosinase isoenzymes exist, and some of them have been found in association with nonmyrosinase proteins. One of these associated proteins, myrosi...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.110.2.483
更新日期:1996-02-01 00:00:00
abstract::The location and changes in NAD(P)H have been monitored during oscillatory growth in pollen tubes of lily (Lilium formosanum) using the endogenous fluorescence of the reduced coenzyme (excitation, 360 nm; emission, >400 nm). The strongest signal resides 20 to 40 microm behind the apex where mitochondria (stained with ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.106.087882
更新日期:2006-12-01 00:00:00
abstract::The capacity of excised internode sections of pea to grow and secrete protons in response to indoleacetic acid (IAA) and Ca(2+) and K(+) treatments was examined. By incubating unpeeled and unabraded sections in rapidly flowing solutions, it was shown that acidification of the external medium in the presence or absence...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.68.1.59
更新日期:1981-07-01 00:00:00
abstract::Phase shifts of the circadian rhythm of K(+) uptake by Lemna gibba G3, caused by pulse administration of various amino acids analogs, were examined and compared. The various phase shifts were not due to any disturbance in the biosynthesis of amino acids, since the effective time of day and direction of the phase shift...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.90.4.1600
更新日期:1989-08-01 00:00:00
abstract::A beta-d-glucanase highly specific for glucans containing a linkage sequence ... Glc 1 --> 4 Glc 1 --> 3 Glc 1 --> 4 Glc ... has been isolated from several commercial preparations of Bacillus subtilis alpha-amylase including one purified by repeated crystallization. The beta-d-glucanase will not hydrolyze cellulose or...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.60.2.300
更新日期:1977-08-01 00:00:00
abstract::We have characterized transcripts for nine major intrinsic proteins (MIPs), some of which function as water channels (aquaporins), from the ice plant Mesembryanthemum crystallinum. To determine the cellular distribution and expression of these MIPs, oligopeptide-based antibodies were generated against MIP-A, MIP-B, MI...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.123.1.111
更新日期:2000-05-01 00:00:00
abstract::In higher plants, three subfamilies of sucrose nonfermenting-1 (Snf1)-related protein kinases have evolved. While the Snf1-related protein kinase 1 (SnRK1) subfamily has been shown to share pivotal roles with the orthologous yeast Snf1 and mammalian AMP-activated protein kinase in modulating energy and metabolic homeo...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.109.150789
更新日期:2010-05-01 00:00:00
abstract::Endogenous respiration of spores of the fungus Myrothecium verrucaria can be stimulated up to over-10 fold by diverse chemicals or by physical treatments. Greatest effects were caused by azide (12-fold at 250 mum) and by 2,4-dinitrophenol (7-fold at 300 mum). Marked stimulation was also caused by 10 mum silver (5-fold...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.50.4.425
更新日期:1972-10-01 00:00:00
abstract::Acyl carrier protein (ACP) is a small (9 kD) acidic protein that is an essential cofactor in plant fatty acid biosynthesis. Most plants have several isoforms of ACP, some of which are expressed constitutively and others that appear to be more tissue specific. Although the critical role of ACP in fatty acid biosynthesi...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.127.1.222
更新日期:2001-09-01 00:00:00
abstract::Barley (c.v. Himalaya) aleurone layers were incubated in [(3)H]gibberellin A(1) (GA(1)) at low temperatures. At 3 and 4 C, (3)H-activity was steadily accumulated in aleurone layers, and this accumulation was correlated with significant [(3)H]GA(1) metabolism. At 1 and 1.5 C, metabolism could not be detected, and at th...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.66.5.956
更新日期:1980-11-01 00:00:00
abstract::Cytokinin proved to be a controlling factor in sieve tube regeneration around wounded collateral bundles in an in vivo system in which the endogenous cytokinin level had been minimized. Both kinetin and zeatin were applied in aqueous solution to the bases of excised, mature internodes of Coleus blumei Benth. that had ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.93.3.982
更新日期:1990-07-01 00:00:00
abstract::(13)C nuclear magnetic resonance spectroscopy of intact leaves of Kalanchoë tubiflora was used to observe Crassulacean acid metabolism in vivo. (13)C signals from C-4 of malate were observed after overnight exposure of leaves to (13)CO(2). Illumination of the labeled leaves resulted in a gradual decrease in the malate...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.73.2.517
更新日期:1983-10-01 00:00:00
abstract::The structure of a glucuronoarabinoxylan in Zea mays L. (hybrid B73 x Mo17) shoot cell walls has been studied. The water-insoluble fraction of Zea shoot cell walls, pretreated with purified Bacillus subtilis (1 --> 3), (1 --> 4)-beta-d-glucan 4-glucanohydrolase, was treated with purified B. subtilis endo-(1 --> 4)-bet...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.75.3.759
更新日期:1984-07-01 00:00:00
abstract::The induction of a dissolved inorganic carbon (DIC) accumulating mechanism in the two algal species Scenedesmus obliquus (WT) and Chlamydomonas reinhardtii (137 c+) was physiologically characterized by monitoring DIC uptake kinetics at a low and constant DIC concentration (120-140 micromolar), after transfer from high...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.87.2.437
更新日期:1988-06-01 00:00:00
abstract::Elevated carbon dioxide (CO2) in leaves closes stomatal apertures. Research has shown key functions of the β-carbonic anhydrases (βCA1 and βCA4) in rapid CO2-induced stomatal movements by catalytic transmission of the CO2 signal in guard cells. However, the underlying mechanisms remain unclear, because initial studies...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.15.00646
更新日期:2015-10-01 00:00:00
abstract::Despite generating an obvious mutant phenotype, whether the Arabidopsis (Arabidopsis thaliana) proton gradient regulation5 (pgr5) mutation influences cyclic electron transport (CET) around PSI is a topic of debate. Results of electrochromic shift analysis show that proton conductivity across the thylakoid membrane (gH...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.20.00850
更新日期:2020-09-01 00:00:00
abstract::Ethylene at hormonally significant levels inhibited net photosynthesis of the cultivated peanut (Arachis hypogaea L.) as measured by gas analysis. Upon the removal of ethylene, the inhibition was naturally overcome at the concentration-exposure duration combinations tested. Increased length of exposure of 1 microliter...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.70.2.598
更新日期:1982-08-01 00:00:00
abstract::The emergence of sterile individuals in the hybrid backcross progeny of wild and cultivated rice limits the use of wild rice alleles for improving cultivated rice, but the molecular mechanisms underlying this sterility remain unclear. Here, we identified the semisterile introgression line YIL42, derived from a cross b...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.18.01374
更新日期:2019-05-01 00:00:00
abstract::The activity of the maize (Zea mays) florigen gene ZEA CENTRORADIALIS8 (ZCN8) is associated with the floral transition in both day-neutral temperate maize and short-day (SD)-requiring tropical maize. We analyzed transcription and chromatin modifications at the ZCN8 locus and its nearly identical paralog ZCN7 during th...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.15.00535
更新日期:2015-08-01 00:00:00
abstract::The Aurora B kinase, encoded by the AURORA 3 (AUR3) gene in Arabidopsis (Arabidopsis thaliana), is a key regulator of cell division in all eukaryotes. Aurora B has at least two central functions during cell division; it is essential for the correct, i.e. balanced, segregation of chromosomes in mitosis and meiosis by c...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.20.00344
更新日期:2020-08-01 00:00:00
abstract::Transgenic Nicotiana tabacum (cv Petit Havana SR1) containing high levels of mitochondrial alternative oxidase (AOX) protein due to the introduction of a sense transgene(s) of Aox1, the nuclear gene encoding AOX, were used to investigate mechanisms regulating AOX activity. After purification of leaf mitochondria, a la...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.109.2.353
更新日期:1995-10-01 00:00:00
abstract::Mitochondrial citrate synthase was purified from leaves of Pisum sativum L. cv Progress 9. A three step purification was employed using ATP-Sepharose affinity chromatography which resulted in a 600-fold enrichment. Enzyme activity was assayed spectrophotometrically during greening of etiolated leaves under constant wh...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.89.3.719
更新日期:1989-03-01 00:00:00
abstract::We have found nuclear, recessive mutants in Zea mays L. where assembly of the major chlorophyll (a/b) light-harvesting complex (LHC) was not delayed relative to most other thylakoid protein complexes during thylakoid biogenesis. This contrasts with the normal development of maize chloroplasts (NR Baker, R Leech 1977 P...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.77.4.795
更新日期:1985-04-01 00:00:00
abstract::As a step to understanding how the photoreceptor phytochrome acts to change the transcription of specific nuclear genes in Lemna gibba, we wish to compare promoter elements involved in negative regulation by phytochrome with those involved in positive regulation. We have isolated three genes negatively regulated by ph...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.101.3.915
更新日期:1993-03-01 00:00:00
abstract::The hypothesis of optimal stomatal conductance predicts conductance should vary with changes of the vapor pressure difference between leaf and air (VPD) to keep the partial derivative of transpiration rate (E) with respect to assimilation rate (A) constant ( partial differentialE/ partial differentialA = lambda). Stom...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.79.3.614
更新日期:1985-11-01 00:00:00