Abstract:
:Transgenic rice plants overexpressing a rice tyrosine decarboxylase (TyDC) exhibited a dwarf phenotype with a high level of tyramine accumulation. The height of transgenic rice was reduced on average to 35% of the wild-type height, whereas the number of tillers increased to 190% that of wild type. When judged by cellular distribution of tyramine and tyramine derivatives, the level of tyramine in soluble and insoluble fractions was higher than that of tyramine derivatives such as 4-coumaroyltyramine (CT) in the transgenic rice plants, suggesting that tyramine rather than its derivatives was a causative compound triggering the dwarf phenotype. Microscopic observation revealed that cell size in the transgenic lines was maintained, with a slightly irregular arrangement in the leaf mesophyll cells. When wild-type rice seeds were grown in the presence of tyramine, rice seedlings also showed stunted phenotypes in a dose-dependent manner. When these stunted seedlings were employed to measure the degree of cellular proliferation by bromodeoxyuridine incorporation, only small numbers of cells were found to retain labeled nuclei in shoot tips compared with the untreated control. These results show that the dwarf phenotype associated with tyramine accumulation in transgenic rice plants is attributable to a reduction in cell number rather than cell size. In addition, our dwarf phenotype caused by tyramine was not closely associated with known dwarf genes such as D88.
journal_name
Plantajournal_title
Plantaauthors
Kim YS,Park S,Kang K,Lee K,Back Kdoi
10.1007/s00425-010-1303-xsubject
Has Abstractpub_date
2011-02-01 00:00:00pages
251-60issue
2eissn
0032-0935issn
1432-2048journal_volume
233pub_type
杂志文章相关文献
PLANTA文献大全abstract::Hydraulic resistances to water flow have been determined in the cortex of hypocotyls of growing seedlings of soybean (Glycine max L. Merr. cv. Wayne). Data at the cell level (hydraulic conductivity, Lp; half-time of water exchange, T 1/2; elastic modulus, ɛ; diffusivity for the cell-to-cell pathway, D c) were obtained...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00396081
更新日期:1985-05-01 00:00:00
abstract::We have isolated a triazolopyrimidine-resistant mutant csrl-2, of Arabidopsis thaliana (L.) Heynh. Here, we compare csrl-2 with the previously isolated mutants csrl and csr1-1, and with wild-type Arabidopsis for responses to members of four classes of herbicides, namely, sulfonylureas, triazolopyrimidines, imidazolino...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00197040
更新日期:1992-11-01 00:00:00
abstract::Eucommia ulmoides Oliver is one of a few woody plants capable of producing abundant quantities of trans-polyisoprene rubber in their leaves, barks, and seed coats. One cDNA library each was constructed from its outer stem tissue and inner stem tissue. They comprised a total of 27,752 expressed sequence tags (ESTs) rep...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-012-1679-x
更新日期:2012-11-01 00:00:00
abstract::Nitrate-induced and phytochrome-modulated appearance of nitrate reductase (NR; EC 1.6.6.1) and nitrite reductase (NIR; EC 1.7.7.1) in the cotyledons of the mustard (Sinapis alba L.) seedling is strongly affected by externally supplied ammonium (NH 4 (+) ). In short-term experiments between 60 and 78 h after sowing it ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392112
更新日期:1986-12-01 00:00:00
abstract::The expansion growth of plant organs is inhibited at low water potentials (Ψ w), but the inhibition has not been compared in different organs of the same plant. Therefore, we determined elongation rates of the roots, stems, leaves, and styles (silks) of maize (Zea mays L.) as soil water was depleted. The Ψ w was measu...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00395973
更新日期:1985-07-01 00:00:00
abstract::Earlier experiments (T.D. Brock 1975, Planta124, 13-23) addressed the question whether the fungus of the lichen thallus might enable the algal component to function when moisture stress is such that the algal component would be unable to function under free-living conditions. It was concluded that the liberated phycob...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF02411401
更新日期:1990-10-01 00:00:00
abstract::Radioactive 2,000 g pellets (2KP) derived from lettuce (Lactuca sativa) hypocotyl sections incubated with [(3)H]gibberellin A1 ([(3)H]GA1) were subjected to a range of treatments to test the stability of labelling. The labelled association was stable in 0.1 M buffer at pH 3 and pH 9 and also in 1 M salt, organic solve...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387809
更新日期:1979-01-01 00:00:00
abstract::Etioplasts and chloroplasts isolated from Pisum sativum differ in lipid composition. The relative amounts of galactolipids, especially of MGD, are higher in the chloroplast. In contrast, the sulfo- and the phospholipids are already present in the etioplasts in higher concentrations. During the formation of the thylako...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00386274
更新日期:1973-06-01 00:00:00
abstract::Three-week-old protonemata of Funaria hygrometrica Hedw. cultivated in Petri dishes tolerate slow drying (24 h to complete dryness) but not rapid drying (1h to complete dryness). Slowly dried mosses show, on a dry-weight basis, a sixfold increase in abscisic-acid (ABA) contents during the drying process. Rehydrated, s...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00201503
更新日期:1991-12-01 00:00:00
abstract::We studied changes induced by cold on electron transfer pathways (linked to NADH or NADPH oxidation) in endoplasmic reticulum of rapeseed hypocotyls (Brassica napus L.) from a freezing-sensitive variety (ISL) and freezing-tolerant variety (Tradition). Plantlets were grown at 22 degrees C then submitted to a cold shock...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-008-0793-2
更新日期:2008-10-01 00:00:00
abstract::Leaves ofNerium oleander L. plants, which had been previously kept in a shaded glasshouse for at least two months, were fed 1 mM dithiothreitol (DTT) through their petioles, either for 12h in darkness (overnight) or for 2h in low light (28 μmol photons·m(-2)·s(-1)), in each case followed by a 3-h exposure to high ligh...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF02411406
更新日期:1989-12-01 00:00:00
abstract::The activity of phosphoenolpyruvate carboxylase (E.C. 4.1.1.31) strongly increased during the maturation of soybean (Glycine max L. Weber) root-nodules. By using a specific immune serum it was shown that this increase was the consequence of an elevated population of enzyme molecules whose appearance preceded the emerg...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00392314
更新日期:1986-10-01 00:00:00
abstract::In several plant species, ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) activase consists of two isoforms that are produced by alternative splicing of a pre-mRNA. Two forms of activase corresponding to the longer, redox-regulated alpha and the shorter, beta forms were detected immunologically in cotton (Go...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-002-0923-1
更新日期:2003-03-01 00:00:00
abstract::Influx and efflux of anions in leaves of Elodea canadensis were investigated. A major component of phosphate efflux was found to be a function of the external phosphate concentration in accord with saturation kinetics, i.e. it was found to be proportional to phosphate influx. This suggests that the transport structure...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387356
更新日期:1967-12-01 00:00:00
abstract::Some ionic relations of the filamentous green alga Mougeotia sp. have been analyzed under different light conditions. Data from influx and efflux measurements using (86)Rb(+) and (36)Cl(-) fit the model of three cellular compartments (cell wall, cytoplasm, vacuole) in series. This result is remarkable, since in a Moug...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00388390
更新日期:1974-06-01 00:00:00
abstract::Three cDNA clones encoding lipid transfer proteins (LTPs) were isolated by applying the rapid amplification of cDNA ends (RACE) protocol to imbibed seeds and germinating seedlings Brassica napus. The deduced amino-acid sequences show a great degree of homology and they exhibit the common features shared by all LTPs. T...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00196563
更新日期:1996-01-01 00:00:00
abstract::Photoheterotrophic and photoautotrophic cell suspension cultures were raised from a callus tissue derived from a Morinda lucida Benth. plant (Rubiaceae). The cultures were characterized with regard to fresh weight, dry weight, cell number, pH, chlorophyll and quinoid natural products. The amount of lipoquinones (phyll...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00391279
更新日期:1985-12-01 00:00:00
abstract::A manganese-containing superoxide dismutase (EC 1.15.1.1) was purified to homogeneity from a higher plant for the first time. The enzyme was isolated fromPisum sativum leaf extracts by thermal fractionation, ammonium sulfate salting out, ion-exchange and gel-filtration column chromatography, and preparative polyacryla...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00582359
更新日期:1980-01-01 00:00:00
abstract::Tubular evaginations of the plasmalemma of the scutellar epithelial cells of barley are described. The evaginations are similar to those present at other sites where solute flux occurs for a limited period only and wall development of the transfer-cell form has not occured. Differential uptake of the fluorescent dyes ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00393318
更新日期:1982-12-01 00:00:00
abstract:MAIN CONCLUSION:The triggers of genetic instability in barley homeotic double mutants are tweaky spike -type mutations associated with an auxin imbalance in separate spike phytomeres. Barley homeotic tweaky spike;Hooded (tw;Hd) double mutants are characterized by an inherited instability of spike and flower development...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-017-2802-9
更新日期:2018-02-01 00:00:00
abstract::Gibberellic acid (GA3) stimulates isocitrate lyase activity of the endosperm during germination of castor bean seeds. Isocitrate lyase from castor bean was purified and an antibody to it was prepared from rabbit serum. This antibody was used to measure the amounts of isocitrate lyase-mRNA using an in vitro translation...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387913
更新日期:1982-03-01 00:00:00
abstract::Increasing soil salinity reduces crop yields worldwide, with rice being particularly affected. We have examined the correlation between apoplastic barrier formation in roots, Na+ uptake into shoots and plant survival for three rice (Oryza sativa L.) cultivars of varying salt sensitivity: the salt-tolerant Pokkali, mod...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-009-0930-6
更新日期:2009-06-01 00:00:00
abstract::Alkaloid uptake into vacuoles isolated from a Fumaria capreolata L. cell suspension culture was investigated. The uptake is carrier-mediated as shown by its substrate saturation, its sensitivity to metabolic inhibitors and especially by its exclusive preference for the (S)-forms of reticuline and scoulerine while the ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00446367
更新日期:1986-01-01 00:00:00
abstract:MAIN CONCLUSION:Phloem production and structural development were interlinked with seasonal variation in the primary and secondary metabolites of phloem. Novel microtechniques provided new perspectives on understanding phloem structure and chemistry. To gain new insights into phloem formation in Norway spruce (Picea ab...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-015-2347-8
更新日期:2015-09-01 00:00:00
abstract::Seven endochitinases (EC 3.2.1.14) (relative molecular masses 23,000-28,000 and isoelectric points 10.3-10.4) were purified from nonembryogenic Citrus sinensis L. Osbeck cv. Valencia callus tissue. The basic chitinase/lysozyme from this tissue (BCLVC) exhibited lysozyme, chitinase and chitosanase activities and was de...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00200295
更新日期:1996-01-01 00:00:00
abstract::Carotenoids are converted by carotenoid cleavage dioxygenases that catalyze oxidative cleavage reactions leading to apocarotenoids. However, apocarotenoids can also be further truncated by some members of this enzyme family. The plant carotenoid cleavage dioxygenase 1 (CCD1) subfamily is known to degrade both caroteno...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-010-1205-y
更新日期:2010-08-01 00:00:00
abstract::Irradiation of buoyant, gas-vacuolate cells of the cyanobacteriumMicrocystis aeruginosa by 5·10(4) Wm(-2) of blue light for 1 h caused a 5% loss of extractable ribulose bisphosphate carboxylase activity compared to dark and red-light controls. Ribulose bisphosphate carboxylase activity was unaffected by blue light in ...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00571178
更新日期:1980-01-01 00:00:00
abstract::Synthesis of anthocyanin pigments in etiolated cabbage seedlings is influenced by ethylene at concentrations higher than 10 ppb, and etiolated seedlings produce sufficient ethylene to influence their anthocyanin synthesis. When escape of endogenous ethylene from this tissue is enhanced by means of hypobaric treatment,...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00387635
更新日期:1973-09-01 00:00:00
abstract:MAIN CONCLUSION:74 phytocyanin genes were identified in the Populus trichocarpa genome. Phylogenetic analysis grouped the PC proteins into four subfamilies (UCs, PLCs, SCs, and ENODLs). Closely related PC proteins share similar motifs, implying similar functions. Expression profiles of PtPC genes were analyzed in respo...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/s00425-018-2849-2
更新日期:2018-05-01 00:00:00
abstract::Dikegulac sodium 2,3:4,6 di-O-isopropylidene-2-keto-L-gulonate) is a translocatable agent used for chemically 'pinching' terminal buds to break apical dominance. It does not inhibit mature leaves. Cell culture systems were developed and used to ascertain whether or not it differentially inhibits green tissue and wheth...
journal_title:Planta
pub_type: 杂志文章
doi:10.1007/BF00385078
更新日期:1978-01-01 00:00:00