abstract：:Leaf senescence is a programmed developmental process governed by various endogenous and exogenous factors, such as the plant developmental stage, leaf age, phytohormone levels, darkness, and exposure to stresses. It was found that, in addition to its well-documented role in the enhancement of plant frost tolerance, o...

journal_title：Journal of experimental botany

authors： Sharabi-Schwager M,Lers A,Samach A,Guy CL,Porat R

更新日期：2010-01-01 00:00:00

abstract：:Stomatal responses to leaf-to-air vapour pressure deficit (LVPD), leaf water potential components, and cuticular properties were characterized for Douglas-fir (Pseudotsuga menziesii) foliage collected from tree tops along a height gradient from 5 m to 58 m in order to explore height-related trends in stomatal sensitiv...

journal_title：Journal of experimental botany

authors： Woodruff DR,Meinzer FC,McCulloh KA

更新日期：2010-01-01 00:00:00

abstract：:Carnivorous plants inhabit nutrient-poor environments, where prominent targets of prey capture are organic nitrogen and phosphorus. Some carnivorous plants also acquire carbon from their victims. A new report focusing on Utricularia, the bladderwort, demonstrates that carbon assimilated from photosynthesis is paradoxi...

journal_title：Journal of experimental botany

authors： Albert VA,Jobson RW,Michael TP,Taylor DJ

更新日期：2010-01-01 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：:The rootless, aquatic Utricularia species belong to the largest and most cosmopolitan carnivorous plant genus. Populations of Utricularia plants are an important component of many standing, nutrient-poor, and humic waters. Carbon (C) allocation is an aspect of Utricularia's ecophysiology that has not been studied prev...

journal_title：Journal of experimental botany

authors： Sirová D,Borovec J,Santrůcková H,Santrucek J,Vrba J,Adamec L

更新日期：2010-01-01 00:00:00

abstract：:Novel genes that function in the conversion of indole-3-acetamide (IAM) into indole-3-acetic acid (IAA), which were previously thought to exist only in the bacterial genome, have been isolated from plants. The finding of the AtAMI1 gene in Arabidopsis thaliana and the NtAMI1 gene in Nicotiana tabacum, which encode ind...

journal_title：Journal of experimental botany

authors： Mano Y,Nemoto K,Suzuki M,Seki H,Fujii I,Muranaka T

更新日期：2010-01-01 00:00:00

abstract：:A recent analysis of the hexokinase (HXK) gene family from Arabidopsis revealed that three hexokinase-like (HKL) proteins lack catalytic activity, but share about 50% identity with the primary glucose (glc) sensor/transducer protein AtHXK1. Since the AtHKL1 protein is predicted to bind glc, although with a relatively ...

journal_title：Journal of experimental botany

authors： Karve A,Moore BD

更新日期：2009-01-01 00:00:00

abstract：:Transient responses of sap flow to step changes in wind speed were experimentally investigated in a wind tunnel. A Granier-type sap flow sensor was calibrated and tested in a cylindrical tube for analysis of its transient time response. Then the sensor was used to measure the transient response of a well-watered Pachi...

journal_title：Journal of experimental botany

authors： Chu CR,Hsieh CI,Wu SY,Phillips NG

更新日期：2009-01-01 00:00:00

abstract：:Chilling injury (CI) symptoms in avocado (Persea americana Mill.) fruit, expressed as mesocarp discoloration, were found to be associated with embryo growth and ethylene production during cold storage. In cvs Ettinger and Arad most mesocarp discoloration was located close to the base of the seed and was induced by eth...

journal_title：Journal of experimental botany

authors： Hershkovitz V,Friedman H,Goldschmidt EE,Pesis E

更新日期：2009-01-01 00:00:00

abstract：:CO(2) faces a series of resistances while diffusing between the substomatal cavities and the sites of carboxylation within chloroplasts. The absence of techniques to measure the resistance of individual steps makes it difficult to define their relative importance. Resistance to diffusion through intercellular airspace...

journal_title：Journal of experimental botany

authors： Evans JR,Kaldenhoff R,Genty B,Terashima I

更新日期：2009-01-01 00:00:00

abstract：:Rice glutelin is synthesized as a precursor in the endosperm endoplasmic reticulum and then deposited within the protein storage vacuole protein body-II (PB-II) as an aggregate, with a high degree of polymerized higher-order structure comprising mature acidic and basic subunits after post-translation processing cleava...

journal_title：Journal of experimental botany

authors： Wakasa Y,Yang L,Hirose S,Takaiwa F

更新日期：2009-01-01 00:00:00

abstract：:Theobroma cacao (cacao) is cultivated in tropical climates and is exposed to drought stress. The impact of the endophytic fungus Trichoderma hamatum isolate DIS 219b on cacao's response to drought was studied. Colonization by DIS 219b delayed drought-induced changes in stomatal conductance, net photosynthesis, and gre...

journal_title：Journal of experimental botany

authors： Bae H,Sicher RC,Kim MS,Kim SH,Strem MD,Melnick RL,Bailey BA

更新日期：2009-01-01 00:00:00

abstract：:The efficient exclusion of excess Na from the cytoplasm and vacuolar Na(+) accumulation are the main mechanisms for the adaptation of plants to salt stress. This is typically carried out by transmembrane transport proteins that exclude Na(+) from the cytosol in exchange for H(+), a secondary transport process which is...

journal_title：Journal of experimental botany

authors： Queirós F,Fontes N,Silva P,Almeida D,Maeshima M,Gerós H,Fidalgo F

更新日期：2009-01-01 00:00:00

abstract：:Cell wall apposition (CWA) formation is one of the first lines of defence used by plants to halt invading fungi such as powdery mildew. Lignin is a complex polymer of hydroxylated and methoxylated phenylpropane units (monolignols) and lignification renders the cell wall more resistant to pathogen attack. The role of m...

journal_title：Journal of experimental botany

authors： Bhuiyan NH,Selvaraj G,Wei Y,King J

更新日期：2009-01-01 00:00:00

abstract：:BRCA2 is a breast tumour susceptibility factor with functions in maintaining genome stability through ensuring efficient double-strand DNA break (DSB) repair via homologous recombination. Although best known in vertebrates, fungi, and higher plants also possess BRCA2-like genes. To investigate the role of Arabidopsis ...

journal_title：Journal of experimental botany

authors： Abe K,Osakabe K,Ishikawa Y,Tagiri A,Yamanouchi H,Takyuu T,Yoshioka T,Ito T,Kobayashi M,Shinozaki K,Ichikawa H,Toki S

更新日期：2009-01-01 00:00:00

abstract：:The nature and effect of the stresses on root growth in crops subject to drying is reviewed. Drought is a complex stress, impacting on plant growth in a number of interacting ways. In response, there are a number of ways in which the growing plant is able to adapt to or alleviate these stresses. It is suggested that t...

journal_title：Journal of experimental botany

authors： Whitmore AP,Whalley WR

更新日期：2009-01-01 00:00:00

abstract：:L-ascorbate (the reduced form of vitamin C) participates in diverse biological processes including pathogen defence mechanisms, and the modulation of plant growth and morphology, and also acts as an enzyme cofactor and redox status indicator. One of its chief biological functions is as an antioxidant. L-ascorbate inta...

journal_title：Journal of experimental botany

authors： Ioannidi E,Kalamaki MS,Engineer C,Pateraki I,Alexandrou D,Mellidou I,Giovannonni J,Kanellis AK

更新日期：2009-01-01 00:00:00

abstract：:Numerous studies have revealed the extent of genetic and phenotypic variation between both species and cultivars of tomato. Using a series of tomato lines resulting from crosses between a cherry tomato and three independent large fruit cultivar (Levovil, VilB, and VilD), extensive profiling of both central primary met...

journal_title：Journal of experimental botany

authors： Zanor MI,Rambla JL,Chaïb J,Steppa A,Medina A,Granell A,Fernie AR,Causse M

更新日期：2009-01-01 00:00:00

abstract：:Radial oxygen loss (ROL) and root porosity of rice (Oryza sativa L.) plants grown in either aerated or deoxygenated (stagnant) conditions were combined for the first time with extensive histochemical and biochemical studies of the apoplastic barriers in the roots' peripheral cell layers. Growth in stagnant solution si...

journal_title：Journal of experimental botany

authors： Kotula L,Ranathunge K,Schreiber L,Steudle E

更新日期：2009-01-01 00:00:00

abstract：:(13)C discrimination in organic matter with respect to atmospheric CO(2) (Delta(13)C) is under tight genetic control in many plant species, including the pedunculate oak (Quercus robur L.) full-sib progeny used in this study. Delta(13)C is expected to reflect intrinsic water use efficiency, but this assumption require...

journal_title：Journal of experimental botany

authors： Roussel M,Dreyer E,Montpied P,Le-Provost G,Guehl JM,Brendel O

更新日期：2009-01-01 00:00:00

abstract：:Very long chain aliphatic compounds occur in the suberin polymer and associated wax. Up to now only few genes involved in suberin biosynthesis have been identified. This is a report on the isolation of a potato (Solanum tuberosum) 3-ketoacyl-CoA synthase (KCS) gene and the study of its molecular and physiological rele...

journal_title：Journal of experimental botany

authors： Serra O,Soler M,Hohn C,Franke R,Schreiber L,Prat S,Molinas M,Figueras M

更新日期：2009-01-01 00:00:00

abstract：:Changes of stem diameter were continuously monitored during winter in two field-grown poplar clones, using automatic point dendrometers. The objective of this study was to find an analytical solution to seasonal synchronization of stem diameter oscillations and low air temperatures. The study identified to what extent...

journal_title：Journal of experimental botany

authors： Cocozza C,Lasserre B,Giovannelli A,Castro G,Fragnelli G,Tognetti R

更新日期：2009-01-01 00:00:00

abstract：:The garden pea has been a model for the genetics of flowering for several decades and numerous flowering loci have been identified, but until recently little was known about the molecular nature of these loci. This paper presents an update on recent work on the molecular genetics of flowering in pea, outlining progres...

journal_title：Journal of experimental botany

authors： Weller JL,Hecht V,Liew LC,Sussmilch FC,Wenden B,Knowles CL,Vander Schoor JK

更新日期：2009-01-01 00:00:00

abstract：:The majority of proteins in eukaryotic cells are modified according to highly regulated mechanisms to fulfill specific functions and to achieve localization, stability, and transport. Protein ubiquitination is one of the major post-translational modifications occurring in eukaryotic cells. To obtain the proteomic data...

journal_title：Journal of experimental botany

authors： Igawa T,Fujiwara M,Takahashi H,Sawasaki T,Endo Y,Seki M,Shinozaki K,Fukao Y,Yanagawa Y

更新日期：2009-01-01 00:00:00

abstract：:Sugar beet is spring-sown for sugar production in most sugar beet-growing countries. It is grown as a vegetative crop and it accumulates yield (sugar) from very early in its growth cycle. As long as the sugar beet plants do not flower, the sugar accumulation period is indefinite and yield continues to increase. This p...

journal_title：Journal of experimental botany

authors： Jaggard KW,Qi A,Ober ES

更新日期：2009-01-01 00:00:00

abstract：:Mechanistic inter-relationships in sinks between sucrose compartmentation/metabolism and phloem unloading/translocation are poorly understood. Developing grain legume seeds provide tractable experimental systems to explore this question. Metabolic demand by cotyledons is communicated to phloem unloading and ultimately...

journal_title：Journal of experimental botany

authors： Zhou Y,Chan K,Wang TL,Hedley CL,Offler CE,Patrick JW

更新日期：2009-01-01 00:00:00

abstract：:The impact of sulphur limitation on the remobilization of endogenous S compounds during the rosette stage of oilseed rape, and the interactions with N availability on these processes, were examined using a long-term (34)SO(4)(2-) labelling method combined with a study of leaf senescence progression (using SAG12/Cab as...

journal_title：Journal of experimental botany

authors： Dubousset L,Abdallah M,Desfeux AS,Etienne P,Meuriot F,Hawkesford MJ,Gombert J,Ségura R,Bataillé MP,Rezé S,Bonnefoy J,Ameline AF,Ourry A,Le Dily F,Avice JC

更新日期：2009-01-01 00:00:00

abstract：:The accumulation of the pathogenesis-related (PR) proteins beta-1,3-glucanase and chitinase and structural defence responses were studied in leaves of wheat either resistant or susceptible to the hemibiotrophic pathogen Septoria tritici. Resistance was associated with an early accumulation of beta-1,3-glucanase and ch...

journal_title：Journal of experimental botany

authors： Shetty NP,Jensen JD,Knudsen A,Finnie C,Geshi N,Blennow A,Collinge DB,Jørgensen HJ

更新日期：2009-01-01 00:00:00

abstract：:An investigation aimed at a better understanding of the molecular adaptation mechanisms of salt stress was carried out in 7-d-old tomato Solanum lycopersicum (L.) Mill cultivars Patio and 'F144', using a proteomic approach. Total proteins were extracted from radicles and hypocotyls collected from both non-saline contr...

journal_title：Journal of experimental botany

authors： Chen S,Gollop N,Heuer B

更新日期：2009-01-01 00:00:00

abstract：:A maize mutant defective in the synthesis of phytic acid during seed maturation was used as a tool to study the consequences of the lack of this important reserve substance on seed survival. Data on germinability, free iron level, free radical relative abundance, protein carbonylation level, damage to DNA, degree of l...

journal_title：Journal of experimental botany

authors： Doria E,Galleschi L,Calucci L,Pinzino C,Pilu R,Cassani E,Nielsen E

更新日期：2009-01-01 00:00:00

abstract：:Rice grain filling is a process of conversion of sucrose into starch catalysed by a series of enzymes. Sucrose synthase (SUS) is considered as a key enzyme regulating this process. This study investigated the possible roles of sucrose and abscisic acid (ABA) in mediating the activity and expression of SUS protein of g...

journal_title：Journal of experimental botany

authors： Tang T,Xie H,Wang Y,Lü B,Liang J

更新日期：2009-01-01 00:00:00

abstract：:Shipping of peaches to distant markets and storage require low temperature; however, cold storage affects fruit quality causing physiological disorders collectively termed 'chilling injury' (CI). In order to ameliorate CI, different strategies have been applied before cold storage; among them heat treatment (HT) has b...

journal_title：Journal of experimental botany

authors： Lara MV,Borsani J,Budde CO,Lauxmann MA,Lombardo VA,Murray R,Andreo CS,Drincovich MF

更新日期：2009-01-01 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：:The composition of carotenoids, along with anthocyanins and chlorophyll, accounts for the distinctive range of colour found in the Actinidia (kiwifruit) species. Lutein and beta-carotene are the most abundant carotenoids found during fruit development, with beta-carotene concentration increasing rapidly during fruit m...

journal_title：Journal of experimental botany

authors： Ampomah-Dwamena C,McGhie T,Wibisono R,Montefiori M,Hellens RP,Allan AC

更新日期：2009-01-01 00:00:00

abstract：:In C(3) plants, diffusion of CO(2) into leaves is restricted by stomata and subsequently by the intercellular airspaces and liquid phase into chloroplasts. While considerable information exists on the effect of environmental conditions on stomatal conductance (g(s)), little is known on whether the mesophyll conductanc...

journal_title：Journal of experimental botany

authors： Tazoe Y,von Caemmerer S,Badger MR,Evans JR

更新日期：2009-01-01 00:00:00

abstract：:In Crocus vernus, a spring bulbous species, prolonged growth at low temperatures results in the development of larger perennial organs and delayed foliar senescence. Because corm growth is known to stop before the first visual sign of leaf senescence, it is clear that factors other than leaf duration alone determine f...

journal_title：Journal of experimental botany

authors： Lundmark M,Hurry V,Lapointe L

更新日期：2009-01-01 00:00:00

abstract：:The initiation of tomato fruit growth, fruit set, is very sensitive to environmental conditions. Therefore, an understanding of the mechanisms that regulate this process can facilitate the production of this agriculturally valuable fruit crop. Over the years, it has been well established that tomato fruit set depends ...

journal_title：Journal of experimental botany

authors： de Jong M,Mariani C,Vriezen WH

更新日期：2009-01-01 00:00:00

abstract：:Charles Darwin made extensive observations of the pollination biology of a wide variety of plants. He carefully documented the consequences of self-pollination and described species that were self-sterile but that could easily be crossed with other plants of the same species. He believed that compatibility was control...

journal_title：Journal of experimental botany

authors： McClure B

更新日期：2009-01-01 00:00:00

abstract：:Plants are known to produce NO via the reduction of nitrite. Oxidative NO production in plants has been considered only with respect to a nitric oxide synthase (NOS). Here it is shown that tobacco cell suspensions emitted NO when hydroxylamine (HA) or salicylhydroxamate (SHAM), a frequently used AOX inhibitor, was add...

journal_title：Journal of experimental botany

authors： Rümer S,Gupta KJ,Kaiser WM

更新日期：2009-01-01 00:00:00

abstract：:A cDNA clone encoding a 64-amino acid type 3 metallothionein protein, designated GhMT3a, was isolated from cotton (Gossypium hirsutum) by cDNA library screening. Northern blot analysis indicated that mRNA accumulation of GhMT3a was up-regulated not only by high salinity, drought, and low temperature stresses, but also...

journal_title：Journal of experimental botany

authors： Xue T,Li X,Zhu W,Wu C,Yang G,Zheng C

更新日期：2009-01-01 00:00:00