Biosensor reporting of root exudation from Hordeum vulgare in relation to shoot nitrate concentration.

abstract：:In the Arabidopsis mutant sdd1-1, a point mutation in a single gene (SDD1) causes specific alterations in stomatal density and distribution. In comparison to the wild type (C24), abaxial surfaces of sdd1-1 rosette leaves have about 2.5-fold higher stomatal densities. This mutant was used to study the consequence of st...

journal_title：Journal of experimental botany

authors： Schlüter U,Muschak M,Berger D,Altmann T

更新日期：2003-02-01 00:00:00

abstract：:Iron is an essential element for all living organisms due to its ubiquitous role in redox and other enzymes, especially in the context of respiration and photosynthesis. The iron uptake and storage systems of terrestrial/higher plants are now reasonably well understood, with two basic strategies for iron uptake being ...

journal_title：Journal of experimental botany

authors： Böttger LH,Miller EP,Andresen C,Matzanke BF,Küpper FC,Carrano CJ

更新日期：2012-10-01 00:00:00

abstract：:Plants of Lolium perenne were grown in sterile solution culture. 15N-labelled glycine (Gly) coupled with gas chromatograph mass spectrometry was used to prove that non-mycorrhizal plants of L. perenne are capable of acquiring N in the form of intact Gly. It was estimated that a minimum of 80% of Gly-N uptake, over a 3...

journal_title：Journal of experimental botany

authors： Thornton B

更新日期：2001-06-01 00:00:00

abstract：:A gene encoding a RING zinc finger ankyrin repeat protein (MjXB3), a putative E3 ubiquitin ligase, is highly expressed in petals of senescing four o'clock (Mirabilis jalapa) flowers, increasing >40,000-fold during the onset of visible senescence. The gene has homologues in many other species, and the Petunia homologue...

journal_title：Journal of experimental botany

authors： Xu X,Jiang CZ,Donnelly L,Reid MS

更新日期：2007-01-01 00:00:00

abstract：:The possible involvement of apoplastic reactive oxygen species produced by the oxidation of free polyamines in the leaf growth of salinized maize has been studied here. Salt treatment increased the apoplastic spermine and spermidine levels, mainly in the leaf blade elongation zone. The total activity of polyamine oxid...

journal_title：Journal of experimental botany

authors： Rodríguez AA,Maiale SJ,Menéndez AB,Ruiz OA

更新日期：2009-01-01 00:00:00

abstract：:Rutin is an antioxidant with many interesting pharmacological effects. It can also be found in buckwheat (Fagopyrum esculentum Moench). UV radiation stimulates the activity of enzymes of the phenylpropanoid pathway and there is some evidence that it influences the rutin content in plants. The aim of the present resear...

journal_title：Journal of experimental botany

authors： Kreft S,Strukelj B,Gaberscik A,Kreft I

更新日期：2002-08-01 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：:Many legumes have the capacity to enter into a symbiotic association with soil bacteria generically called 'rhizobia' that results in the formation of new lateral organs on roots called nodules within which the rhizobia fix atmospheric nitrogen (N). Up to 200 million tonnes of N per annum is fixed by this association....

journal_title：Journal of experimental botany

authors： Djordjevic MA,Mohd-Radzman NA,Imin N

更新日期：2015-08-01 00:00:00

abstract：:HYL1 is an important regulator of microRNA (miRNA) biogenesis. A loss-of-function mutation of HYL1 causes the reduced accumulation of some miRNAs but fails to display the miRNA-deficient phenotypes of these miRNAs. In Arabidopsis, miR156 mediates phase transition through repression of SQUAMOSA PROMOTER-BINDING PROTEIN...

journal_title：Journal of experimental botany

authors： Li S,Yang X,Wu F,He Y

更新日期：2012-04-01 00:00:00

abstract：:Plants show varied cellular responses to salinity that are partly associated with maintaining low cytosolic Na(+) levels and a high K(+)/Na(+) ratio. Plant metabolites change with elevated Na(+), some changes are likely to help restore osmotic balance while others protect Na(+)-sensitive proteins. Metabolic responses ...

journal_title：Journal of experimental botany

authors： Widodo,Patterson JH,Newbigin E,Tester M,Bacic A,Roessner U

更新日期：2009-01-01 00:00:00

abstract：:The relative role of the maternal source and the filial sink in controlling the composition of maize (Zea mays L.) kernels is unclear and may be influenced by the genotype and the N supply. The objective of this study was to determine the influence of assimilate supply from the vegetative source and utilization of ass...

journal_title：Journal of experimental botany

authors： Seebauer JR,Singletary GW,Krumpelman PM,Ruffo ML,Below FE

更新日期：2010-01-01 00:00:00

abstract：:In taproot of oilseed rape (Brassica napus L.), a 23 kDa polypeptide has been recently identified as a putative vegetative storage protein (VSP) because of its accumulation during flowering and its specific mobilization to sustain grain filling when N uptake is strongly reduced. The objectives were to characterize thi...

journal_title：Journal of experimental botany

authors： Rossato L,Le Dantec C,Laine P,Ourry A

更新日期：2002-02-01 00:00:00

abstract：:Plants have evolved elaborate mechanisms for sensing and responding to sub-optimal environmental conditions. Abiotic stresses caused by these conditions trigger a wide range of local and long-distance signals which must be co-ordinated and integrated into whole-plant processes, such as development, in order for the pl...

journal_title：Journal of experimental botany

authors： Zwack PJ,Rashotte AM

更新日期：2015-08-01 00:00:00

abstract：:This work examines the involvement of haem oxygenase-1 (HO-1) in salicylic acid (SA)-induced alleviation of oxidative stress as a result of cadmium (Cd) stress in alfalfa (Medicago sativa L.) seedling roots. CdCl(2) exposure caused severe growth inhibition and Cd accumulation, which were potentiated by pre-treatment w...

journal_title：Journal of experimental botany

authors： Cui W,Li L,Gao Z,Wu H,Xie Y,Shen W

更新日期：2012-09-01 00:00:00

abstract：:Understanding the genetic architecture of grain size is a prerequisite to manipulating grain development and improving the potential crop yield. In this study, we conducted a whole genome-wide quantitative trait locus (QTL) mapping of grain-size-related traits by constructing a high-density genetic map using 109 recom...

journal_title：Journal of experimental botany

authors： Yu K,Liu D,Chen Y,Wang D,Yang W,Yang W,Yin L,Zhang C,Zhao S,Sun J,Liu C,Zhang A

更新日期：2019-09-24 00:00:00

abstract：:Improving photosynthesis is considered a promising way to increase crop yield to feed a growing population. Realizing this goal requires non-destructive techniques to quantify photosynthetic variation among crop cultivars. Despite existing remote sensing-based approaches, it remains a question whether solar-induced fl...

journal_title：Journal of experimental botany

authors： Fu P,Meacham-Hensold K,Siebers MH,Bernacchi CJ

更新日期：2020-12-19 00:00:00

abstract：:ERECTA family genes encode leucine-rich repeat receptor-like kinases that control multiple aspects of plant development such as elongation of aboveground organs, leaf initiation, development of flowers, and epidermis differentiation. These receptors have also been implicated in responses to biotic and abiotic stress, ...

journal_title：Journal of experimental botany

authors： Villagarcia H,Morin AC,Shpak ED,Khodakovskaya MV

更新日期：2012-11-01 00:00:00

abstract：:During the Green Revolution, substantial increases in wheat (Triticum aestivum) yields were realized, at least in part, through the introduction of the Reduced height (Rht)-B1b and Rht-D1b semi-dwarfing alleles. In contrast to Rht-B1b and Rht-D1b, the Rht-B1c allele is characterized by extreme dwarfism and exceptional...

journal_title：Journal of experimental botany

authors： Van De Velde K,Chandler PM,Van Der Straeten D,Rohde A

更新日期：2017-01-01 00:00:00

abstract：:Axenically grown Arabidopsis thaliana plants were analysed for the occurrence of trehalose. Using gas chromatography-mass spectrometry (GC-MS) analysis, trehalose was unambiguously identified in extracts from Arabidopsis inflorescences. In a variety of organisms, the synthesis of trehalose is catalysed by trehalose-6-...

journal_title：Journal of experimental botany

authors： Vogel G,Fiehn O,Jean-Richard-dit-Bressel L,Boller T,Wiemken A,Aeschbacher RA,Wingler A

更新日期：2001-09-01 00:00:00

abstract：:The relationship between photosynthetic energy conservation and thermal dissipation of light energy is considered, with emphasis on organisms which tolerate full desiccation without suffering photo-oxidative damage in strong light. As soon as water becomes available to dry poikilohydric organisms, they resume photosyn...

journal_title：Journal of experimental botany

authors： Heber U,Lange OL,Shuvalov VA

更新日期：2006-01-01 00:00:00

abstract：:Nitrogen (N) management is a promising agronomic strategy to minimize cadmium (Cd) contamination in crops. However, it is unclear how N affects Cd uptake by plants. Wild-type and iron uptake-inefficient tomato (Solanum lycopersicum) mutant (T3238fer) plants were grown in pH-buffered hydroponic culture to investigate t...

journal_title：Journal of experimental botany

authors： Luo BF,Du ST,Lu KX,Liu WJ,Lin XY,Jin CW

更新日期：2012-05-01 00:00:00

abstract：:Natural vegetation is predicted to suffer from extreme heat events as a result of global warming. In this study, we focused on the immediate response to heat stress. Photosynthesis and volatile emissions were measured in the leaves of tobacco (Nicotiana tabacum cv. Wisconsin 38) after exposure to heat shock treatments...

journal_title：Journal of experimental botany

authors： Turan S,Kask K,Kanagendran A,Li S,Anni R,Talts E,Rasulov B,Kännaste A,Niinemets Ü

更新日期：2019-09-24 00:00:00

abstract：:Groundnuts (Arachis hypogaea L.) are an important crop of the semi-arid tropics where they are often exposed to maximum temperatures of > 40 degrees C for short periods during the growing season. The objectives of this study were to determine: (i) the effects of short periods of exposure to high temperature on flower ...

journal_title：Journal of experimental botany

authors： Prasad PV,Craufurd PQ,Summerfield RJ,Wheeler TR

更新日期：2000-04-01 00:00:00

abstract：:Recovery of photosynthesis in rehydrating desiccated leaves of the poikilochlorophyllous desiccation-tolerant plant Xerophyta scabrida was investigated. Detached leaves were remoistened under 12 h light/dark cycles for 96 h. Water, chlorophyll (Chl), and protein contents, Chl fluorescence, photosynthesis-CO(2) concent...

journal_title：Journal of experimental botany

authors： Pérez P,Rabnecz G,Laufer Z,Gutiérrez D,Tuba Z,Martínez-Carrasco R

更新日期：2011-01-01 00:00:00

abstract：:Classical and recently found phytohormones play an important role in plant growth and development, but plants additionally control these processes through small signalling peptides. Over 1000 potential small signalling peptide sequences are present in the Arabidopsis genome. However, to date, a mere handful of small s...

journal_title：Journal of experimental botany

authors： Czyzewicz N,Yue K,Beeckman T,De Smet I

更新日期：2013-12-01 00:00:00

abstract：:We simulated pre-breeding in evolving gene banks - populations of exotic and crop types undergoing optimal contribution selection for long-term genetic gain and management of population genetic diversity. The founder population was based on crosses between elite crop varieties and exotic lines of field pea (Pisum sati...

journal_title：Journal of experimental botany

authors： Cowling WA,Li L,Siddique KHM,Henryon M,Berg P,Banks RG,Kinghorn BP

更新日期：2017-04-01 00:00:00

abstract：:Ureides dramatically accumulate in shoots of N(2)-fixing soybean (Glycine max L. Merr.) under water deficit and this accumulation is higher in cultivars that have N(2) fixation that is sensitive to water deficit. One possible explanation is that ureide accumulation is associated with a feedback inhibition of nitrogena...

journal_title：Journal of experimental botany

authors： Vadez V,Sinclair TR

更新日期：2000-08-01 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：:Mitogen-activated protein kinase (MAPK) cascades are involved in various processes from plant growth and development to biotic and abiotic stress responses. MAPK kinases (MAPKKs), which link MAPKs and MAPKK kinases (MAPKKKs), play crucial roles in MAPK cascades to mediate a variety of stress responses in plants. Howev...

journal_title：Journal of experimental botany

authors： Zhang L,Li Y,Lu W,Meng F,Wu CA,Guo X

更新日期：2012-06-01 00:00:00

abstract：:Previous studies documented that metal hyperaccumulation armours plants with direct defences against pathogens. In the present study, it was found that high leaf Mn concentrations (<2500 µg g(-1)) induced grapevine resistance to powdery mildew [Uncinula necator (Schw.) Burr]. Manganese delayed pathogen spreading after...

journal_title：Journal of experimental botany

authors： Yao YA,Wang J,Ma X,Lutts S,Sun C,Ma J,Yang Y,Achal V,Xu G

更新日期：2012-09-01 00:00:00