abstract：:Ethylene and gibberellins (GAs) are known to influence plant growth by mutual cross-talk and by interaction with other hormones. Transcript meta-analysis shows that GA and ethylene metabolism genes are expressed in the majority of plant organs. Both GAs and the ethylene precursor 1-amino-cyclopropane-1-carboxylic acid...

journal_title：Journal of experimental botany

authors： Dugardeyn J,Vandenbussche F,Van Der Straeten D

更新日期：2008-01-01 00:00:00

abstract：:Although recent studies have established a significant regulatory role for abscisic acid (ABA) and ethylene response factor (ERF) proteins in plant pathogen resistance, it is not clear whether and how ABA performs this role. Previously, it was reported that an ERF protein, TSRF1, activates the expression of GCC box-co...

journal_title：Journal of experimental botany

authors： Zhou J,Zhang H,Yang Y,Zhang Z,Zhang H,Hu X,Chen J,Wang XC,Huang R

更新日期：2008-01-01 00:00:00

abstract：:Enzymes that reduce the aldehyde chemical grouping (i.e. H-C=O) to its corresponding alcohol are probably crucial in maintaining plant health during stress. Succinic semialdehyde (SSA) is a mitochondrially-generated intermediate in the metabolism of gamma-aminobutyrate (GABA), which accumulates in response to a variet...

journal_title：Journal of experimental botany

authors： Allan WL,Simpson JP,Clark SM,Shelp BJ

更新日期：2008-01-01 00:00:00

abstract：:Whole apple fruit (Malus domestica Borkh.) widely differing in pigment content and composition has been examined by recording its chlorophyll fluorescence excitation and diffuse reflection spectra in the visible and near UV regions. Spectral bands sensitive to the pigment concentration have been identified, and linear...

journal_title：Journal of experimental botany

authors： Merzlyak MN,Melø TB,Naqvi KR

更新日期：2008-01-01 00:00:00

abstract：:At present and more so in the future, irrigated agriculture will take place under water scarcity. Insufficient water supply for irrigation will be the norm rather than the exception, and irrigation management will shift from emphasizing production per unit area towards maximizing the production per unit of water consu...

journal_title：Journal of experimental botany

authors： Fereres E,Soriano MA

更新日期：2007-01-01 00:00:00

abstract：:Cytophotometry of individual nuclei was used to examine the level of endoreduplication in epidermal cells from the upper and lower parts of the ovary during Ornithogalum umbellatum flower and fruit development. An increase in DNA content from 2-4C to 2-8C in both parts of the ovary was observed, while the epidermal ce...

journal_title：Journal of experimental botany

authors： Kwiatkowska M,Poplonska K,Kazmierczak A,Stepinski D,Rogala K,Polewczyk K

更新日期：2007-01-01 00:00:00

abstract：:The typical isohydric plant response to low relative humidity involves stomatal closure, followed by long-term responses like adjustment of shoot-to-root ratios. Little information is available on the early responses of the root system to exposure of shoots to low humidity, nor is it clear to what extent responses of ...

journal_title：Journal of experimental botany

authors： Levin M,Lemcoff JH,Cohen S,Kapulnik Y

更新日期：2007-01-01 00:00:00

abstract：:The feedback regulation of ethylene biosynthesis in banana [Musa sp. (AAA group, Cavendish subgroup) cv. Grand Nain] fruit was investigated in an attempt to clarify the opposite effect of 1-methylcyclopropene (1-MCP), an ethylene action inhibitor, before and after the onset of ripening. 1-MCP pre-treatment completely ...

journal_title：Journal of experimental botany

authors： Inaba A,Liu X,Yokotani N,Yamane M,Lu WJ,Nakano R,Kubo Y

更新日期：2007-01-01 00:00:00

abstract：:Phytopathogen infection leads to changes in secondary metabolism based on the induction of defence programmes as well as to changes in primary metabolism which affect growth and development of the plant. Therefore, pathogen attack causes crop yield losses even in interactions which do not end up with disease or death ...

journal_title：Journal of experimental botany

authors： Berger S,Sinha AK,Roitsch T

更新日期：2007-01-01 00:00:00

abstract：:Ethylene, or its precursor 1-aminocyclopropane-1-carboxylic acid (ACC), can stimulate hypocotyl elongation in the light. It is questioned whether gibberellins (GAs) play a role in this response. Tests with light of different wavelengths demonstrated that the ethylene response depends on blue light and functional crypt...

journal_title：Journal of experimental botany

authors： Vandenbussche F,Vancompernolle B,Rieu I,Ahmad M,Phillips A,Moritz T,Hedden P,Van Der Straeten D

更新日期：2007-01-01 00:00:00

abstract：:To understand the mechanisms of ion homeostasis in salt-tolerant and salt-sensitive plants, cDNAs for a high-affinity K(+) transporter PhaHKT1 were isolated from salt-sensitive (Utsunomiya) and salt-tolerant (Nanpi, Enchi) reed plants. A cDNA of Utsunomiya (PhaHKT1-u) contained two insertions in the region correspondi...

journal_title：Journal of experimental botany

authors： Takahashi R,Liu S,Takano T

更新日期：2007-01-01 00:00:00

abstract：:Antisense- or RNAi-mediated suppression of the biosynthesis of nutritionally inferior storage proteins is a promising strategy for improving the amino acid profile of seeds. However, the potential pleiotropic effects of this on interconnected pathways and the agronomic quality traits need to be addressed. In the curre...

journal_title：Journal of experimental botany

authors： Hansen M,Lange M,Friis C,Dionisio G,Holm PB,Vincze E

更新日期：2007-01-01 00:00:00

abstract：:An alkaline proteinase activity is present in quiescent seeds and up to the 24th day of development of Canavalia ensiformis DC (L.) plants. By a simple protocol consisting of cation exchange chromatography, followed by an anion exchange column, a serine proteinase (Q-SP) was purified to homogeneity from quiescent seed...

journal_title：Journal of experimental botany

authors： Demartini DR,Wlodawer A,Carlini CR

更新日期：2007-01-01 00:00:00

abstract：:The hypersensitive response (HR) is one mechanism of the resistance of plants to pathogen infection. It involves the generation of reactive oxygen species (ROS) which have crucial roles in signal transduction or as toxic agents leading to cell death. Often, ROS generation is accompanied by an ultraweak photon emission...

journal_title：Journal of experimental botany

authors： Kobayashi M,Sasaki K,Enomoto M,Ehara Y

更新日期：2007-01-01 00:00:00

abstract：:Bud break in raspberry (Rubus idaeus L.) is often poor and uneven, with many of the subapical buds remaining in a dormant state. In order to determine the dormancy status of raspberry buds, an empirical measure of bud burst in a growth-permissive environment following exposure to chilling (4 degrees C cold storage) wa...

journal_title：Journal of experimental botany

authors： Mazzitelli L,Hancock RD,Haupt S,Walker PG,Pont SD,McNicol J,Cardle L,Morris J,Viola R,Brennan R,Hedley PE,Taylor MA

更新日期：2007-01-01 00:00:00

abstract：:Voltage dependence of ionic currents and ion fluxes in a walled, turgor-regulating cell were measured in Neurospora crassa. The hyphal morphology of the model organism Neurospora simplifies cable analysis of ionic currents to determine current density for quantitative comparisons with ion fluxes. The ion fluxes were m...

journal_title：Journal of experimental botany

authors： Lew RR

更新日期：2007-01-01 00:00:00

abstract：:The structure of arabinan and galactan domains in association with cellulose microfibrils was investigated using enzymatic and alkali degradation procedures. Sugar beet and potato cell wall residues (called 'natural' composites), rich in pectic neutral sugar side chains and cellulose, as well as 'artificial' composite...

journal_title：Journal of experimental botany

authors： Zykwinska A,Thibault JF,Ralet MC

更新日期：2007-01-01 00:00:00

abstract：:Several types of small, endogenous signal peptides are now known to induce a wide range of local and systemic responses in plants, but how such signal peptide activity is transported over long distances remains unclear. In particular, the possible occurrence and root-to-shoot transport of signal peptide activity in th...

journal_title：Journal of experimental botany

authors： Neumann PM

更新日期：2007-01-01 00:00:00

abstract：:Protein kinases and phosphatases are the foremost agents which take part in cell cycle regulation in both plants and other eukaryotes. Protein kinases are a very well examined group of proteins with respect to chemical structure and function. Nowadays protein phosphatases, including PP1 and PP2A belonging to the PSP f...

journal_title：Journal of experimental botany

authors： Polit JT,Kazmierczak A

更新日期：2007-01-01 00:00:00

abstract：:The present study assesses light-induced variations in phenolic compounds in leaves of saplings of two co-occurring temperate species (Acer platanoides L., and Fraxinus excelsior L.) along a light gradient using a new non-invasive optical method (Dualex). The Dualex-derived UV absorbance of leaf epidermis (the sum of ...

journal_title：Journal of experimental botany

authors： Barthod S,Cerovic Z,Epron D

更新日期：2007-01-01 00:00:00

abstract：:Plants are equipped with a range of defence mechanisms against herbivorous insects. In cruciferous species, jasmonic acid, salicylic acid, and ethylene along with glucosinolates and their hydrolysis products play important roles in plant protection and plant-insect communication. In turn, a number of herbivores have a...

journal_title：Journal of experimental botany

authors： Kusnierczyk A,Winge P,Midelfart H,Armbruster WS,Rossiter JT,Bones AM

更新日期：2007-01-01 00:00:00

abstract：:Understanding and diagnosing plant responses to stress will benefit greatly from three-dimensional (3D) measurement and analysis of plant properties because plant responses are strongly related to their 3D structures. Light detection and ranging (lidar) has recently emerged as a powerful tool for direct 3D measurement...

journal_title：Journal of experimental botany

authors： Omasa K,Hosoi F,Konishi A

更新日期：2007-01-01 00:00:00

abstract：:Sorghum is an important source of food, feed, and biofuel, especially in the semi-arid tropics because this cereal is well adapted to harsh, drought-prone environments. Post-flowering drought adaptation in sorghum is associated with the stay-green phenotype. Alleles that contribute to this complex trait have been mapp...

journal_title：Journal of experimental botany

authors： Harris K,Subudhi PK,Borrell A,Jordan D,Rosenow D,Nguyen H,Klein P,Klein R,Mullet J

更新日期：2007-01-01 00:00:00

abstract：:Emergent aquatic macrophytes growing in waterlogged anaerobic sediments overlain by deep water require particularly efficient ventilating systems. In Phragmites australis (Cav.) Trin. ex Steud, pressurized gas flows, generated by humidity-induced diffusion of air into leaf sheaths, enhance oxygen transport to below-gr...

journal_title：Journal of experimental botany

authors： Afreen F,Zobayed SM,Armstrong J,Armstrong W

更新日期：2007-01-01 00:00:00

abstract：:A major QTL affecting root traits and leaf ABA concentration was identified in maize (Zea mays L.) and named root-ABA1. For this QTL, back-cross-derived lines (BDLs) homozygous either for the (+) or for the (-) allele increasing or decreasing, respectively, root size and leaf ABA concentration, were developed. This st...

journal_title：Journal of experimental botany

authors： Landi P,Sanguineti MC,Liu C,Li Y,Wang TY,Giuliani S,Bellotti M,Salvi S,Tuberosa R

更新日期：2007-01-01 00:00:00

abstract：:Most of the carbon used for starch biosynthesis in cereal endosperms is derived from ADP-glucose (ADP-Glc) synthesized by extra-plastidial AGPase activity, and imported directly across the amyloplast envelope. The properties of the wheat endosperm amyloplast ADP-Glc transporter were analysed with respect to substrate ...

journal_title：Journal of experimental botany

authors： Bowsher CG,Scrase-Field EF,Esposito S,Emes MJ,Tetlow IJ

更新日期：2007-01-01 00:00:00

abstract：:Nitrogen-fixing bacteria have been isolated from sugarcane in an endophytic and beneficial interaction that promotes plant growth. In this work, for the first time, the involvement of ethylene signalling in this interaction was investigated by molecular characterizing members of this pathway in sugarcane. The expressi...

journal_title：Journal of experimental botany

authors： Cavalcante JJ,Vargas C,Nogueira EM,Vinagre F,Schwarcz K,Baldani JI,Ferreira PC,Hemerly AS

更新日期：2007-01-01 00:00:00

abstract：:Zinc (Zn), an essential nutrient in cells, plays a vital role in controlling cellular processes such as growth, development, and differentiation. Although the mechanisms of Zn translocation in rice plants (Oryza sativa) are not fully understood, it has recently received increased interest. OsZIP4 is a Zn transporter t...

journal_title：Journal of experimental botany

authors： Ishimaru Y,Masuda H,Suzuki M,Bashir K,Takahashi M,Nakanishi H,Mori S,Nishizawa NK

更新日期：2007-01-01 00:00:00

abstract：:Changes in root hydraulic resistance in response to alterations in nitrate supply were explored in detail as a potential mechanism that allows plants to respond rapidly to changes in their environment. Sunflower (Helianthus annuus cv. Holiday) plants grown hydroponically with limited nitrate availability (200 micromol...

journal_title：Journal of experimental botany

authors： Gloser V,Zwieniecki MA,Orians CM,Holbrook NM

更新日期：2007-01-01 00:00:00

abstract：:Transgenic Arabidopsis plants overexpressing the wheat vacuolar Na(+)/H(+) antiporter TNHX1 and H(+)-PPase TVP1 are much more resistant to high concentrations of NaCl and to water deprivation than the wild-type strains. These transgenic plants grow well in the presence of 200 mM NaCl and also under a water-deprivation...

journal_title：Journal of experimental botany

authors： Brini F,Hanin M,Mezghani I,Berkowitz GA,Masmoudi K

更新日期：2007-01-01 00:00:00

abstract：:Leaf gas exchange and temperature response were measured to assess temperature acclimation within a tree canopy in climatically contrasting genotypes of Acer rubrum L. Over the course of two 50 d continuous periods, growth temperature was controlled within tree crowns and the steady-state rate of leaf gas exchange was...

journal_title：Journal of experimental botany

authors： Bauerle WL,Bowden JD,Wang GG

更新日期：2007-01-01 00:00:00

abstract：:Here the isolation and characterization of CitAMT1 cDNA from citrange Troyer (Citrus sinensis L. OsbeckxPoncirus trifoliata Blanco) is reported, suggesting that this belongs to the AMT gene family, which is involved in the high-affinity transport system (HATS). Results show that in Citrus plants, the HATS is much more...

journal_title：Journal of experimental botany

authors： Camañes G,Cerezo M,Primo-Millo E,Gojon A,García-Agustín P

更新日期：2007-01-01 00:00:00

abstract：:Vivipary, the germination of seeds before they are shed from the parent plant, is a rare event in angiosperms involving complex ecophysiological processes. Pseudovivipary and cryptovivipary occur in approximately 30 (2%) species of the cactus family. A remarkable case of vivipary in Epiphyllum phyllanthus is described...

journal_title：Journal of experimental botany

authors： Cota-Sánchez JH,Abreu DD

更新日期：2007-01-01 00:00:00

abstract：:The control of sugar beet (Beta vulgaris L.) germination by plant hormones was studied by comparing fruits and seeds. Treatment of sugar beet fruits and seeds with gibberellins, brassinosteroids, auxins, cytokinins, and jasmonates or corresponding hormone biosynthesis inhibitors did not appreciably affect radicle emer...

journal_title：Journal of experimental botany

authors： Hermann K,Meinhard J,Dobrev P,Linkies A,Pesek B,Hess B,Machácková I,Fischer U,Leubner-Metzger G

更新日期：2007-01-01 00:00:00

abstract：:The C4 photosynthetic pathway uses water more efficiently than the C3 type, yet biogeographical analyses show a decline in C4 species relative to C3 species with decreasing rainfall. To investigate this paradox, the hypothesis that the C4 advantage over C3 photosynthesis is diminished by drought was tested, and the un...

journal_title：Journal of experimental botany

authors： Ripley BS,Gilbert ME,Ibrahim DG,Osborne CP

更新日期：2007-01-01 00:00:00

abstract：:The possible role of photorespiration as a general stress protection mechanism, and in C(4) plant metabolism, is controversial. In particular, the potential involvement of photorespiration in the acquisition of desiccation tolerance in 'resurrection' plants is unknown. An investigation was carried out into whether pho...

journal_title：Journal of experimental botany

authors： Martinelli T,Whittaker A,Masclaux-Daubresse C,Farrant JM,Brilli F,Loreto F,Vazzana C

更新日期：2007-01-01 00:00:00

abstract：:Images taken at different spectral bands are increasingly used for characterizing plants and their health status. In contrast to conventional point measurements, imaging detects the distribution and quantity of signals and thus improves the interpretation of fluorescence and reflectance signatures. In multispectral fl...

journal_title：Journal of experimental botany

authors： Lenk S,Chaerle L,Pfündel EE,Langsdorf G,Hagenbeek D,Lichtenthaler HK,Van Der Straeten D,Buschmann C

更新日期：2007-01-01 00:00:00

abstract：:A cDNA that encodes a transporter from the NHAD family was identified in Physcomitrella patens. Computer-based searches using the amino acid sequence of PpNHAD1 revealed that, in addition to being expressed in flowering plants, highly conserved transporters of this family are expressed in red algae, green algae, mosse...

journal_title：Journal of experimental botany

authors： Barrero-Gil J,Rodríguez-Navarro A,Benito B

更新日期：2007-01-01 00:00:00

abstract：:The measurement of the response of net photosynthesis to leaf internal CO2 (i.e. A-Ci curves) is widely used for ecophysiological studies. Most studies did not consider CO2 exchange between the chamber and the surrounding air, especially at the two extremes of A-Ci curves, where large CO2 gradients are created, leadin...

journal_title：Journal of experimental botany

authors： Flexas J,Díaz-Espejo A,Berry JA,Cifre J,Galmés J,Kaldenhoff R,Medrano H,Ribas-Carbó M

更新日期：2007-01-01 00:00:00

abstract：:Plants resistant to aluminium (Al) stress were isolated from Arabidopsis thaliana enhancer-tagged mutant lines. Compared with the parental Col-7 control line, one of the resistant candidates, #355-2, showed a higher expression of the F9E10.5 gene (At1g75100) on chromosome 1, a lower Al content in whole roots, and a sh...

journal_title：Journal of experimental botany

authors： Ezaki B,Kiyohara H,Matsumoto H,Nakashima S

更新日期：2007-01-01 00:00:00