Endogenous cytokinins during embryogenesis in an anise cell culture (Pimpinella anisum L.).

abstract：:Changes in fatty-acid metabolism were studied in soybean (Glycine max Merr.) cotyledons during senescence as well as in cotyledons which had been caused to regreen by removal of the epicotyl from the seedling. The activities of the enzymes acetyl-CoA synthetase (EC 6.2.1.1) and fatty-acid synthetase in plastids isolat...

journal_title：Planta

authors： Place MA,Morgan MS,Rutkoski A,Newman DW,Jaworski JG

更新日期：1979-12-01 00:00:00

abstract：:Sucrose uptake into tonoplast vesicles, which were prepared from red beet (Beta vulgaris L.) vacuoles isolated by two different methods, was stimulated by MgATP. Using the same medium as for osmotic disruption of vacuoles, membrane vesicles were prepared from tissue homogenates of dormant red beet roots and separated ...

journal_title：Planta

authors： Getz HP

更新日期：1991-09-01 00:00:00

abstract：:Plastoglobules are lipid droplets present in all plastid types. In chloroplasts, they are connected to the thylakoid membrane by the outer lipid half-bilayer. The plastoglobule core is composed of neutral lipids most prominently the prenylquinones, triacylglycerols, fatty acid phytyl esters but likely also unknown com...

journal_title：Planta

authors： Besagni C,Kessler F

更新日期：2013-02-01 00:00:00

abstract：:A gibberellin (GA) C-20 hydroxylase that catalyses the conversion of GA53 to GA44 was purified from developing pea embryos by ammonium-sulfate precipitation, gel filtration and anion-exchange column chromatography. The purification was about 270-fold and 15% of the enzymic activity was recovered. The relative molecula...

journal_title：Planta

authors： Lange T,Graebe JE

更新日期：1989-09-01 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

authors： Luo S,Hu W,Wang Y,Liu B,Yan H,Xiang Y

更新日期：2018-05-01 00:00:00

abstract：:Numerical values which define the relative limitation of photosynthesis by light and CO2 were computed from the slopes of light-and CO2-response curves of photosynthesis. This method offers an easy approach for the characterization of photosynthesis of leaves. ...

journal_title：Planta

authors： Dietz KJ

更新日期：1986-02-01 00:00:00

abstract：:Bean cells habituated to grow in the presence of dichlobenil exhibited reduced cellulose and hemicellulose content and an increase in pectic polysaccharides. Furthermore, following the extraction of pectins and hemicelluloses, a large amount of neutral sugars was released. These sugars were found to be part of a solub...

journal_title：Planta

authors： Alonso-Simón A,Encina AE,Seyama T,Kondo T,García-Angulo P,Álvarez JM,Acebes JL,Hayashi T

更新日期：2013-06-01 00:00:00

abstract：:Main conclusion Variations in gene expression can partially explain the difference of carotenoid accumulation in secondary phloem and xylem of fleshy carrot roots. The carrot root is well divided into two different tissues separated by vascular cambium: the secondary phloem and xylem. The equilibrium between these two...

journal_title：Planta

authors： Perrin F,Hartmann L,Dubois-Laurent C,Welsch R,Huet S,Hamama L,Briard M,Peltier D,Gagné S,Geoffriau E

更新日期：2017-04-01 00:00:00

abstract：:Immunomodulation is a means to modulate an organism's function by antibody production to capture either endogenous or exogenous antigens. We have recently succeeded in obtaining gibberellin (GA)-deficient phenotypes in Arabidopsis thaliana by using anti-bioactive GA antibodies. In this study, a single-chain antibody (...

journal_title：Planta

authors： Urakami E,Yamaguchi I,Asami T,Conrad U,Suzuki Y

更新日期：2008-10-01 00:00:00

abstract：:Conductivity changes in the medium of cultured soybean (Glycine max L.) cells were shown to be strictly correlated with nitrate uptake and growth of the cultures. A continuous record of the conductivity was used as a simple and reliable method of determining specific growth stages and concomitant peaks in the activiti...

journal_title：Planta

authors： Hahlbrock K,Ebel J,Oaks A,Auden J,Liersch M

更新日期：1974-03-01 00:00:00

abstract：MAIN CONCLUSION:Simultaneous nitrogen depletion and 3,4-dichlorophenol addition induce a bioenergetic microalgal reprogramming, through strong Cyt b 6 f synthesis, that quench excess electrons from dichlorophenol's biodegradation to an overactivated photosynthetic electron flow and H 2 -productivity. Cellular energy ma...

journal_title：Planta

authors： Papazi A,Korelidou A,Andronis E,Parasyri A,Stamatis N,Kotzabasis K

更新日期：2018-03-01 00:00:00

abstract：:D-threo chloramphenicol (CAP) at 5×10(-5) M, given continuously during a 24-hr aging period and subsequent post-age treatment with 2,4-dichlorophenoxyacetic acid (2,4-D)±kinetin markedly depressed cell expansion in Jerusalem artichoke (Helianthus tuberosus) tuber slices. Both the rate and total amount of expansion wer...

journal_title：Planta

authors： Setterfield G

更新日期：1970-03-01 00:00:00

abstract：:De-etiolation involves a number of phenotypic changes as the plants shift from a dark-grown (etiolated) to a light-grown (de-etiolated) morphology. Whilst these light-induced, morphological changes are thought to be mediated by plant hormones, the precise mechanism/s are not yet fully understood. Here we provide furth...

journal_title：Planta

authors： Symons GM,Smith JJ,Nomura T,Davies NW,Yokota T,Reid JB

更新日期：2008-04-01 00:00:00

abstract：MAIN CONCLUSION:Bignoniaceae species have conserved chloroplast structure, with hotspots of nucleotide diversity. Several genes are under positive selection, and can be targets for evolutionary studies. Bignoniaceae is one of the most species-rich family of woody plants in Neotropical seasonally dry forests. Here we re...

journal_title：Planta

authors： Sobreiro MB,Vieira LD,Nunes R,Novaes E,Coissac E,Silva-Junior OB,Grattapaglia D,Collevatti RG

更新日期：2020-10-24 00:00:00

abstract：:As previously found, both the level of ether-extractable auxin (presumably indole-3-acetic acid) and the root-forming ability of B.xcheimantha leaves are increased under long-day conditions by high temperature, whereas the capacity for adventitious bud formation is reduced. However, this relation is present under rela...

journal_title：Planta

authors： Heide OM

更新日期：1968-06-01 00:00:00

abstract：:The ontogenetic change taking place in the facultative photoperiodic response of A. retroflexus to inductive short-day (SD) conditions was studied by exposing plants to continuous induction after different initial exposures to long-days (LD), and comparing the kinetics of their developmental responses (cumulative numb...

journal_title：Planta

authors： Koller D,Kigel J,Ovadiah S

更新日期：1977-01-01 00:00:00

abstract：:The profile of (14)C, that is the plot of log (radioactivity) against distance, down the stem of Helianthus seedlings was studied over the course of the first hour after feeding (14)C to a leaf. These seedlings are shown to accumulate a large proportion of the total (14)C present in the stem in an ethanol insoluble fo...

journal_title：Planta

authors： Whittle CM

更新日期：1970-09-01 00:00:00

abstract：:Five major soluble nuclear proteins associated with cell proliferation were identified in Allium cepa L. root cells. One of them, of 64 kDa, was revealed by Western blotting with anti-mammalian nucleolin antibodies. A polyclonal antibody raised against this protein, which we have named NopA64, localised it in the nucl...

journal_title：Planta

authors： de Cárcer G,Cerdido A,Medina FJ

更新日期：1997-01-01 00:00:00

abstract：:Single cell sap sampling and analysis were used to measure the longitudinal and radial distribution of sucrose, glucose and fructose in the apical cell division zone and in the basal, elongated zone of the Ricinus hypocotyl. Sucrose and hexose increased in concentration from the apex to the base of the seedling axis. ...

journal_title：Planta

authors： Verscht J,Tomos D,Komor E

更新日期：2006-11-01 00:00:00

abstract：:Palatinose (isomaltulose, 6-O-alpha-D-glucopyranosyl-D-fructose) is a structural isomer of sucrose which is produced from sucrose by some bacterial strains as a reserve material during periods of low carbon availability. The ability to synthesise palatinose is not only advantageous for the bacteria but is also of indu...

journal_title：Planta

authors： Börnke F,Hajirezaei M,Heineke D,Melzer M,Herbers K,Sonnewald U

更新日期：2002-01-01 00:00:00

abstract：:The first hours of seed germination are characterized by an increase in the rate of RNA synthesis. Although this change is most easily accounted for by changes in the ribonucleotide pool sizes, we investigated two other aspects of rRNA synthesis which are likely to contribute to the phenomenon. Using isolated radish e...

journal_title：Planta

authors： Aspart L,Cooke R,Michaux-Ferriere N,Delseny M

更新日期：1980-02-01 00:00:00

abstract：:We have screened a cDNA library prepared from tomato (Lycopersicon esculentum Mill. cv. VFNT Cherry) shoot tips for homeobox-containing clones. The isolated cDNA clone THOM1 (tomato homeobox gene 1) contains a homeobox, a leucine zipper motif and and an acidic region. These features support the hypothesis that the THO...

journal_title：Planta

authors： Meissner R,Theres K

更新日期：1995-01-01 00:00:00

abstract：:Active Cl(-) uptake by Chlorella fusca was examined by using (36)Cl as a label. Under light/air conditions chloride influx from a 2.4·10(-5) M solution was 4.0±0.04 nmol m(-2)s(-1). After 70±10 min a stationary 380±40 fold accumulation was reached. In dark/air and dark/argon influx and accumulation were reduced to 25±...

journal_title：Planta

authors： Doblinger R,Tromballa HW

更新日期：1982-11-01 00:00:00

abstract：:Hypocotyls of dark-grown seedlings of Arabidosis thaliana exhibit a strong negative gravitropism, which is reduced by red and also by long-wavelength, far-red light treatments. Light treatments using phytochrome A (phyA)- and phytochrome B (phyB)-deficient mutants showed that this response is controlled by phyB in a r...

journal_title：Planta

authors： Poppe C,Hangarter RP,Sharrock RA,Nagy F,Schäfer E

更新日期：1996-01-01 00:00:00

abstract：:In compound leaves, leaflet primordia are initiated directionally along the lateral sides. Our understanding of the molecular basis of leaflet initiation has improved, but the regulatory mechanisms underlying spatio-temporal patterns remain unclear. In this study, we investigated the mechanisms of acropetal (from the ...

journal_title：Planta

authors： Ikeuchi M,Igarashi H,Okada K,Tsukaya H

更新日期：2014-07-01 00:00:00

abstract：:Gibberellins A1, A8, A20 and A29 were identified by capillary gas chromatography-mass spectrometry in the pods and seeds from 5-d-old pollinated ovaries of pea (Pisum sativum cv. Alaska). These gibberellins were also identified in 4-d-old non-developing, parthenocarpic and pollinated ovaries. The level of gibberellin ...

journal_title：Planta

authors： Garcia-Martinez JL,Sponsel VM,Gaskin P

更新日期：1987-01-01 00:00:00

abstract：MAIN CONCLUSION:Physical properties of wheat coleoptile segments decreased after treatment with hemicellulose-degrading enzymes, indicating that hemicellulosic polysaccharides function to control the strength of primary cell walls. Changes in the physical properties of plant cell walls, a viscoelastic structure, are th...

journal_title：Planta

authors： Takahashi M,Yamamoto R,Sakurai N,Nakano Y,Takeda T

更新日期：2015-02-01 00:00:00

abstract：:Late-formed metaphloem sieve-elements in the vascular bundles of the leaf and pedicels of Zea differ from the typical sieve elements by having thicker cell walls and larger, elongate plastids. The plastids contain a quasi-crystalline structure which is different from that observed in the spherical plastids of sieve el...

journal_title：Planta

authors： Walsh MA

更新日期：1974-01-01 00:00:00

abstract：:Seed clusters, with adhering fibres, from individual locules of 36-d-old fruit capsules of Gossypium arboreum L. were fed with [(14)C]sucrose in vitro. The fibres synthesised, under standard conditions, (1→3)-β-D-glucan (callose) and (1→4)-β-D-glucan (cellulose) in the ratio of approx. 2:1. Under a great variety of di...

journal_title：Planta

authors： Pillonel C,Meier H

更新日期：1985-07-01 00:00:00

abstract：:Mannans are hemicellulosic polysaccharides in the plant primary cell wall (CW). Mature seeds, specially their endosperm cells, have CWs rich in mannan-based polymers that confer a strong mechanical resistance for the radicle protrusion upon germination. The rupture of the seed coat and endosperm are two sequential eve...

journal_title：Planta

authors： Iglesias-Fernández R,Rodríguez-Gacio MC,Barrero-Sicilia C,Carbonero P,Matilla A

更新日期：2011-01-01 00:00:00