Abstract：
:Changes in acyl lipids and pigments during leaf development in a virescens barley mutant (M) and the normal (N) were studied. Apical 3-cm leaf segments were extracted with chloroform-methanol, the extracts were purified on Sephadex G-25 columns, and the polar lipids were separated on two-dimensional-thin layer chromatography silica gel plates. The pigment remaining on the Sephadex column was identified as flavonoids and a zone on the TLC plates which did not correspond to the usual standards was identified as gramine. Quantification of acyl lipids by either polar head group analysis or fatty acid analysis using heptadecanoate as an internal standard gave similar results. The per cent of the total lipid extract quantified for the M between 4 and 8 days ranged from 46 to 65% and that for the N ranged from 60 to 68%. Of these, acyl lipids represented 37 to 48% in the M and 43 to 50% in the N. By 8 days, mono- and digalacto-syldiglyceride (MG and DG) accounted for 45 and 25% of the total acyl lipid of both the M and N. For the period of study here, this represented a 4-fold increase in MG and a 2.5-fold increase in DG in the M but only a 1.8-fold increase for MG and DG in the N. These increases were closely correlated with the increases in chlorophyll. Chlorophyll increased sharply between 4 and 6 days for the N, whereas, in the M, it rose from 7 to 50% relative to the normal by 8 days. The proportions of the various fatty acids were unique for the lipid classes. The only major quantitative change for a fatty acid was for hexadecanoate in phosphatidylglycerol which increased from 5% at 4 days to 25 to 30% by 8 days. Relative to the N, the carotenoid content of the M increased from 14 to 50% between 4 and 8 days. In both the M and N, the increase in beta-carotene and chlorophyll were closely correlated.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Thomson LW,Zalik Sdoi
10.1104/pp.67.4.646subject
Has Abstractpub_date
1981-04-01 00:00:00pages
646-54issue
4eissn
0032-0889issn
1532-2548journal_volume
67pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract：:Small proteins have long been overlooked due to their poor annotation and the experimental challenges they pose. However, in recent years, their role in various processes has started to emerge, opening new research avenues. Here, we present the isolation and characterization of two allelic mutants, twisted seed1-1 (tw...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.16.00915
更新日期：2016-11-01 00:00:00
abstract：:LeCTR1 was initially isolated by both differential display reverse transcriptase-polymerase chain reaction screening for tomato (Lycopersicon esculentum) fruit ethylene-inducible genes and through homology with the Arabidopsis CTR1 cDNA. LeCTR1 shares strong nucleotide sequence homology with Arabidopsis CTR1, a gene a...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.009415
更新日期：2002-11-01 00:00:00
abstract：:Improving the performance of rice (Oryza sativa) under drought stress has the potential to significantly affect rice productivity. Here, we report that the ERF family transcription factor OsLG3 positively regulates drought tolerance in rice. In our previous work, we found that OsLG3 has a positive effect on rice grain...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.17.01492
更新日期：2018-09-01 00:00:00
abstract：:A decline in growth, flowering, and boll (fruit) retention is referred to as cutout in cotton (Gossypium hirsutum L.). Fruit load affects cutout, possibly through hormonal effects. Experiments were conducted to test the hypothesis that fruits are a source of abscisic acid (ABA) that moves into fruiting branches and gr...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.77.1.16
更新日期：1985-01-01 00:00:00
abstract：:Indoleacetic acid oxidase in tobacco callus tissues (Nicotiana tabacum L., cultivar White Gold) was resolved into seven anionic isoenzymes by polyacrylamide gel disc electrophoresis. Different concentrations of kinetin and zeatin in the presence of indoleacetic acid affected the level of this enzyme, particularly two ...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.47.2.181
更新日期：1971-02-01 00:00:00
abstract：:A synthetic green fluorescent protein (GFP) gene (pgfp) was constructed to improve GFP expression in plants. Corn and tobacco protoplast transient assays showed that pgfp gave about 20-fold brighter fluorescence than the wild-type gene (gfp). Replacement of the serine at position 65 with a threonine (S65Tpgfp) or a cy...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.112.3.893
更新日期：1996-11-01 00:00:00
abstract：:We used a small oxygen electrode and a grating monochromator of 10 mmu half-band width to determine light-saturation curves of photosynthesis for films of Chlorella pyrenoidosa no more than 1 cell thick. All curves were referenced to the lightsaturated rate observed in 5 mw/cm(2) of 680 mmu. To a close approximation (...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.41.1.90
更新日期：1966-01-01 00:00:00
abstract：:Orcinol O-methyltransferase (OOMT) 1 and 2 catalyze the last two steps of the biosynthetic pathway leading to the phenolic methyl ether 3,5-dimethoxytoluene (DMT), the major scent compound of many rose (Rosa x hybrida) varieties. Modern roses are descended from both European and Chinese species, the latter being produ...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.105.070961
更新日期：2006-01-01 00:00:00
abstract：:Suboptimal N or P availability and cool temperatures all decrease apparent hydraulic conductance (L) of cotton (Gossypium hirsutum L.) roots. The interaction between nutrient status and root temperature was tested in seedlings grown in nutrient solutions. The depression of L (calculated as the ratio of transpiration r...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.92.3.855
更新日期：1990-03-01 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：:Room temperature chlorophyll a fluorescence was used to determine the effects of developmental history, developmental stage, and leaf age on susceptibility of spinach to in vivo low temperature (5 degrees C) induced photoinhibition. Spinach (Spinacia oleracea cv Savoy) leaves expanded at cold hardening temperatures (5...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.99.3.1141
更新日期：1992-07-01 00:00:00
abstract：:We have purified homoserine dehydrogenase to homogeneity and subjected polypeptide fragments derived from digests of the protein to amino acid sequencing. The amino acid sequence of homoserine dehydrogenase from carrot (Daucus carota) indicates that in carrot both aspartokinase and homoserine dehydrogenase activities ...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.97.4.1323
更新日期：1991-12-01 00:00:00
abstract：:The transcription factors LEAFY (LFY) and APETALA1 (AP1), together with the AP1 paralog CAULIFLOWER (CAL), control the onset of flower development in a partially redundant manner. This redundancy is thought to be mediated, at least in part, through the regulation of a shared set of target genes. However, whether these...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.17.00098
更新日期：2017-06-01 00:00:00
abstract：:The low temperature exotherms (LTE) of 1-year-old twigs of Haralson apple (Malus pumila Mill.), shagbark hickory (Carya ovata [Mill.] K. Koch), green ash (Fraxinus pennsylvanica Marsh), honey locust (Gleditsia triacanthos L.), American chestnut (Castanea dentata [Marsh] Borkh.), and red oak (Quercus rubra L.) were det...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.66.1.40
更新日期：1980-07-01 00:00:00
abstract：:The effects of a severe water deficit on total root (L(t)) and axial (L(x)) hydraulic conductances and on the development of the hypodermis, endodermis, and xylem were studied in sorghum (Sorghum bicolor L.). Water deficit was imposed in the upper rooting zone while the lower zones were kept moist. L(t) and L(x) were ...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.99.1.203
更新日期：1992-05-01 00:00:00
abstract：:In vitro fatty acid transfer to form complex lipids was observed in crude cell extracts of Anabaena variabilis using [1-(14)C]palmitoyl-acyl carrier protein, [1-(14)C]stearoyl-acyl carrier protein, and [1-(14)C]oleoyl-acyl carrier protein substrates. The data indicated that there was a rapid transfer of the fatty acid...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.75.3.700
更新日期：1984-07-01 00:00:00
abstract：:Cyanobacteria are oxygenic photosynthetic prokaryotes that are the progenitors of the chloroplasts of algae and plants. These organisms harvest light using large membrane-extrinsic phycobilisome antenna in addition to membrane-bound chlorophyll-containing proteins. Similar to eukaryotic photosynthetic organisms, cyano...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.111.192849
更新日期：2012-04-01 00:00:00
abstract：:Spontaneous growth of isolated inner tissue from the etiolated sunflower (Helianthus annuus L.) hypocotyl growing zone was investigated. A new preparation technique allowed measurements starting 3 s after excision. Elongation with respect to the turgescent and plasmolized state was quantified in terms of relative grow...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.123.2.605
更新日期：2000-06-01 00:00:00
abstract：:Excised roots of the tomato species, Lycopersicon esculentum Mill. cv Walter (the commercial species) and of Lycopersicon cheesmanii ssp. minor (Hook.) C.H. Mull. (a wild species from the Galapagos Islands), were used in comparative studies of their absorption of K(+) and Na(+). Uptake of (86)Rb-labeled K(+) and (22)N...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.79.4.1064
更新日期：1985-12-01 00:00:00
abstract：:Enriched peribacteroid membranes were prepared from Phaseolus vulgaris nodules and, in the presence of metleghemoglobin and H(2)O(2), membranal lipid peroxidation was observed. The initial rate of the reaction was low and increased with time. Ferrous leghemoglobin was unable to induce this peroxidation with H(2)O(2). ...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.96.3.826
更新日期：1991-07-01 00:00:00
abstract：:The evolution of C4 photosynthesis in many taxa involves the establishment of a two-celled photorespiratory CO2 pump, termed C2 photosynthesis. How C3 species evolved C2 metabolism is critical to understanding the initial phases of C4 plant evolution. To evaluate early events in C4 evolution, we compared leaf anatomy,...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.113.221119
更新日期：2013-11-01 00:00:00
abstract：:The circadian RNA-binding protein CHLAMY1 from the green alga Chlamydomonas reinhardtii consists of two subunits named C1 and C3. Changes in the C1 level cause arrhythmicity of the phototaxis rhythm, while alterations in the level of C3 lead to acrophase shifts. Thus, CHLAMY1 is involved in maintaining period and phas...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.108.118570
更新日期：2008-08-01 00:00:00
abstract：:In this study, we generated transgenic Arabidopsis (Arabidopsis thaliana) plants overexpressing the Rieske FeS protein (PetC), a component of the cytochrome b6f (cyt b6f) complex. Increasing the levels of this protein resulted in concomitant increases in the levels of cyt f (PetA) and cyt b6 (PetB), core proteins of t...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.17.00622
更新日期：2017-09-01 00:00:00
abstract：:Adventitious root formation at the base of plant cuttings is an innate de novo organogenesis process that allows massive vegetative propagation of many economically and ecologically important species. The early molecular events following shoot excision are not well understood. Using whole-genome microarrays, we detect...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.109.137505
更新日期：2009-06-01 00:00:00
abstract：:Logarithmic growth rates (either fresh or dry weight basis) of tobacco callus tissues grown on 10(-4) to 10(-1) mum cytokinin are increased if gibberellic acid (10(-3)-2 mum) is incorporated into the medium. At higher (1-10 mum) cytokinin concentrations gibberellic acid has little effect on growth rate but extends the...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.46.1.113
更新日期：1970-07-01 00:00:00
abstract：:ADP-glucose pyrophosphorylase catalyzes the synthesis of ADP-glucose (ADP-Glc) from Glc-1-phosphate (G-1-P) and ATP. Kinetic studies were performed to define the nature of the reaction, both in the presence and absence of allosteric effector molecules. When 3-phosphoglycerate (3-PGA), the putative physiological activa...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.109.149450
更新日期：2010-02-01 00:00:00
abstract：:Anthers of Nicotiana tabacum cultivar Wisconsin 38 were treated with the mutagen ethyl methane sulfonate and cultured to obtain populations of haploid plants of high genetic variability. The selection of these populations by their photosynthetic efficiency was carried out in a hydroponic culture chamber with a CO(2) a...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.79.2.505
更新日期：1985-10-01 00:00:00
abstract：:Analysis of a mutation in cotton (Gossypium hirsutum), which is maternally inherited, revealed that the completely white sectors of leaves were deficient in the 70S class ribosomes, whereas the yellow sectors exhibited the same level of the latter as in the green leaves. ...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.51.6.1138
更新日期：1973-06-01 00:00:00
abstract：:Lipoxidase, in the cotyledons of squash (Cucurbita moscata) seedlings grown in the dark, reached its peak activity on the fifth day and then declined to its lowest activity on the eighth day. Under continuous irradiation, the rate of enzyme disappearance was accelerated by red (655 mmu) and was retarded by far-red (73...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.42.3.421
更新日期：1967-03-01 00:00:00
abstract：:Energy dispersive x-ray analysis was used to study the composition of certain protein body components in Cucurbita maxima cotyledons. The globoid crystal was rich in phosphorus, potassium, and magnesium. This elemental composition provides further evidence that the globoid crystal in squash cotyledon protein bodies is...
journal_title：Plant physiology
pub_type： 杂志文章
doi：10.1104/pp.55.5.913
更新日期：1975-05-01 00:00:00
