Global crop improvement networks to bridge technology gaps.

Abstract:

:To ensure future food security, there is an urgent need for improved co-ordination of agricultural research. While advances in biotechnology hold considerable promise, significant technology gaps exist that may reduce their impact. Examples include an incomplete knowledge of target breeding environments, a limited understanding and/or application of optimal crop management practices, and underfunded extension services. A better co-ordinated and more globalized approach to agricultural research through the implementation of Global Crop Improvement Networks (GCIN) is proposed. Such networks could underpin agricultural research and development by providing the following types of services: (i) increased resolution and precision of environmental information, including meteorological data, soil characteristics, hydrological data, and the identification of environmental 'hotspots' for a range of biotic, abiotic, and socio-economic constraints; (ii) augmented research capacity, including network-based variety and crop management trials, faster and more comprehensive diagnosis of emerging constraints, timely sharing of new technologies, opportunities to focus research efforts better by linking groups with similar productivity constraints and complementary skills, and greater control of experimental variables in field-based phenotyping; and (iii) increased communication and impacts via more effective dissemination of new ideas and products, the integration of information globally to elicit well-timed local responses to productivity threats, an increased profile, and the publicity of threats to food security. Such outputs would help target the translation of research from the laboratory into the field while bringing the constraints of rural communities closer to the scientific community. The GCIN could provide a lens which academia, science councils, and development agencies could use to focus in on themes of common interest, and working platforms to integrate novel research approaches on crop adaptation and rural development.

journal_name

J Exp Bot

authors

Reynolds MP,Hellin J,Govaerts B,Kosina P,Sonder K,Hobbs P,Braun H

doi

10.1093/jxb/err241

subject

Has Abstract

pub_date

2012-01-01 00:00:00

pages

1-12

issue

1

eissn

0022-0957

issn

1460-2431

pii

err241

journal_volume

63

pub_type

杂志文章,评审
  • bHLH92 from sheepgrass acts as a negative regulator of anthocyanin/proanthocyandin accumulation and influences seed dormancy.

    abstract::LcbHLH92, a pleiotropic gene from sheepgrass, negatively regulates anthocyanins/proanthocyandins and reduces seed dormancy in transgenic Arabidopsis. ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ery335

    authors: Zhao P,Li X,Jia J,Yuan G,Chen S,Qi D,Cheng L,Liu G

    更新日期:2019-01-01 00:00:00

  • Functional inactivation of UDP-N-acetylglucosamine pyrophosphorylase 1 (UAP1) induces early leaf senescence and defence responses in rice.

    abstract::Plant leaf senescence and defence responses are important biological processes, but the molecular mechanisms involved are not well understood. This study identified a new rice mutant, spotted leaf 29 (spl29). The SPL29 gene was identified by map-based cloning, and SPL29 was confirmed as UDP-N-acetylglucosamine pyropho...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eru456

    authors: Wang Z,Wang Y,Hong X,Hu D,Liu C,Yang J,Li Y,Huang Y,Feng Y,Gong H,Li Y,Fang G,Tang H,Li Y

    更新日期:2015-02-01 00:00:00

  • Speedy small stomata?

    abstract::Recent work has made progress in relating the size of stomata to stomatal functioning and, in particular, the speed of opening and closing and its implications. Calculations of the influence of stomatal size on the potential rate of osmolarity increase, assuming size-independent ion influx rate per unit area of guard ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eru032

    authors: Raven JA

    更新日期:2014-04-01 00:00:00

  • The beneficial endophyte Trichoderma hamatum isolate DIS 219b promotes growth and delays the onset of the drought response in Theobroma cacao.

    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

    pub_type: 杂志文章

    doi:10.1093/jxb/erp165

    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

  • The Arabidopsis ascorbate peroxidase 3 is a peroxisomal membrane-bound antioxidant enzyme and is dispensable for Arabidopsis growth and development.

    abstract::Ascorbate peroxidase (APX) exists as several isoforms that are found in various compartments in plant cells. The cytosolic and chloroplast APXs appear to play important roles in antioxidation metabolism in plant cells, yet the function of peroxisomal APX is not well studied. In this study, the localization of a putati...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erl060

    authors: Narendra S,Venkataramani S,Shen G,Wang J,Pasapula V,Lin Y,Kornyeyev D,Holaday AS,Zhang H

    更新日期:2006-01-01 00:00:00

  • Ethylene-induced Arabidopsis hypocotyl elongation is dependent on but not mediated by gibberellins.

    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

    pub_type: 杂志文章

    doi:10.1093/jxb/erm288

    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

  • Location and effects of long-term NaCl stress on superoxide dismutase and ascorbate peroxidase isoenzymes of pea (Pisum sativum cv. Puget) chloroplasts.

    abstract::The present work describes the intrachloroplast localization and the changes that took place in the thylakoid and stroma-located superoxide dismutases (SOD, EC 1.15.1.1) and ascorbate peroxidases (APX, EC 1.11.1.11), in response to long-term NaCl stress in Pisum sativum L. cv. Puget plants. Native PAGE using high chlo...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erh013

    authors: Gomez JM,Jimenez A,Olmos E,Sevilla F

    更新日期:2004-01-01 00:00:00

  • The mitochondrial pentatricopeptide repeat protein EMP12 is involved in the splicing of three nad2 introns and seed development in maize.

    abstract::Plant mitochondrial genes contain cis- and trans-group II introns that must be spliced before translation. The mechanism by which these introns are spliced is not well understood. Several families of proteins have been implicated in the intron splicing, of which the pentatricopeptide repeat (PPR) proteins are proposed...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ery432

    authors: Sun F,Xiu Z,Jiang R,Liu Y,Zhang X,Yang YZ,Li X,Zhang X,Wang Y,Tan BC

    更新日期:2019-02-05 00:00:00

  • Interactive effects of elevated CO2, warming, and drought on photosynthesis of Deschampsia flexuosa in a temperate heath ecosystem.

    abstract::Global change factors affect plant carbon uptake in concert. In order to investigate the response directions and potential interactive effects, and to understand the underlying mechanisms, multifactor experiments are needed. The focus of this study was on the photosynthetic response to elevated CO(2) [CO2; free air CO...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/err133

    authors: Albert KR,Ro-Poulsen H,Mikkelsen TN,Michelsen A,van der Linden L,Beier C

    更新日期:2011-08-01 00:00:00

  • Differential coupling of gibberellin responses by Rht-B1c suppressor alleles and Rht-B1b in wheat highlights a unique role for the DELLA N-terminus in dormancy.

    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

    pub_type: 杂志文章

    doi:10.1093/jxb/erw471

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

    更新日期:2017-01-01 00:00:00

  • Expression pattern, genomic structure, and promoter analysis of the gene encoding stilbene synthase from Chinese wild Vitis pseudoreticulata.

    abstract::The gene encoding stilbene synthase (STS) plays a central role in many biochemical and physiological actions, and its metabolite resveratrol possesses broad-spectrum resistance to pathogens, as well as diverse pharmacological properties, notably an anticancer effect. Here, we report the expression analysis of the gene...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erq447

    authors: Xu W,Yu Y,Zhou Q,Ding J,Dai L,Xie X,Xu Y,Zhang C,Wang Y

    更新日期:2011-05-01 00:00:00

  • Zygnema circumcarinatum UTEX 1559 chloroplast and mitochondrial genomes provide insight into land plant evolution.

    abstract::The complete chloroplast and mitochondrial genomes of Charophyta have shed new light on land plant terrestrialization. Here, we report the organellar genomes of the Zygnema circumcarinatum strain UTEX 1559, and a comparative genomics investigation of 33 plastomes and 18 mitogenomes of Chlorophyta, Charophyta (includin...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eraa149

    authors: Orton LM,Fitzek E,Feng X,Grayburn WS,Mower JP,Liu K,Zhang C,Duvall MR,Yin Y

    更新日期:2020-06-11 00:00:00

  • Endomembrane architecture and dynamics during secretion of the extracellular matrix of the unicellular charophyte, Penium margaritaceum.

    abstract::The extracellular matrix (ECM) of many charophytes, the assemblage of green algae that are the sister group to land plants, is complex, produced in large amounts, and has multiple essential functions. An extensive secretory apparatus and endomembrane system are presumably needed to synthesize and secrete the ECM, but ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eraa039

    authors: Domozych DS,Sun L,Palacio-Lopez K,Reed R,Jeon S,Li M,Jiao C,Sørensen I,Fei Z,Rose JKC

    更新日期:2020-06-11 00:00:00

  • A genetic map of candidate genes and QTLs involved in tomato fruit size and composition.

    abstract::In order to screen for putative candidate genes linked to tomato fruit weight and to sugar or acid content, genes and QTLs involved in fruit size and composition were mapped. Genes were selected among EST clones in the TIGR tomato EST database (http://www.tigr.org/tdb/tgi/lgi/) or corresponded to genes preferentially ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erh207

    authors: Causse M,Duffe P,Gomez MC,Buret M,Damidaux R,Zamir D,Gur A,Chevalier C,Lemaire-Chamley M,Rothan C

    更新日期:2004-08-01 00:00:00

  • Darwin's foundation for investigating self-incompatibility and the progress toward a physiological model for S-RNase-based SI.

    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

    pub_type: 历史文章,杂志文章,评审

    doi:10.1093/jxb/erp024

    authors: McClure B

    更新日期:2009-01-01 00:00:00

  • Characterization of ADP-glucose transport across the cereal endosperm amyloplast envelope.

    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

    pub_type: 杂志文章

    doi:10.1093/jxb/erl297

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

    更新日期:2007-01-01 00:00:00

  • Soluble methionine enhances accumulation of a 15 kDa zein, a methionine-rich storage protein, in transgenic alfalfa but not in transgenic tobacco plants.

    abstract::With the general aim of elevating the content of the essential amino acid methionine in vegetative tissues of plants, alfalfa (Medicago sativa L.) and tobacco plants, as well as BY2 tobacco suspension cells, were transformed with a beta-zein::3HA gene under the 35S promoter of cauliflower mosaic virus encoding a rumen...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eri237

    authors: Amira G,Ifat M,Tal A,Hana B,Shmuel G,Rachel A

    更新日期:2005-09-01 00:00:00

  • Transcriptional reprogramming and enhanced photosynthesis drive inducible salt tolerance in sugarcane mutant line M4209.

    abstract::Sugarcane (Saccharum officinarum) is a globally cultivated cash crop whose yield is negatively affected by soil salinity. In this study, we investigated the molecular basis of inducible salt tolerance in M4209, a sugarcane mutant line generated through radiation-induced mutagenesis. Under salt-contaminated field condi...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eraa339

    authors: Negi P,Pandey M,Dorn KM,Nikam AA,Devarumath RM,Srivastava AK,Suprasanna P

    更新日期:2020-10-07 00:00:00

  • Tomato SlDREB gene restricts leaf expansion and internode elongation by downregulating key genes for gibberellin biosynthesis.

    abstract::Plants have evolved and adapted to different environments. Dwarfism is an adaptive trait of plants that helps them avoid high-energy costs under unfavourable conditions. The role of gibberellin (GA) in plant development has been well established. Several plant dehydration-responsive element-binding proteins (DREBs) ha...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ers295

    authors: Li J,Sima W,Ouyang B,Wang T,Ziaf K,Luo Z,Liu L,Li H,Chen M,Huang Y,Feng Y,Hao Y,Ye Z

    更新日期:2012-11-01 00:00:00

  • Evidence for the presence of photorespiration in desiccation-sensitive leaves of the C4 'resurrection' plant Sporobolus stapfianus during dehydration stress.

    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

    pub_type: 杂志文章

    doi:10.1093/jxb/erm247

    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

  • A chlorophyll fluorescence-based method for the integrated characterization of the photophysiological response to light stress.

    abstract::This work introduces a new experimental method for the comprehensive description of the physiological responses to light of photosynthetic organisms. It allows the integration in a single experiment of the main established manipulative chlorophyll fluorescence-based protocols. It enables the integrated characterizatio...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erw492

    authors: Serôdio J,Schmidt W,Frankenbach S

    更新日期:2017-02-01 00:00:00

  • Seed response to strigolactone is controlled by abscisic acid-independent DNA methylation in the obligate root parasitic plant, Phelipanche ramosa L. Pomel.

    abstract::Seed dormancy release of the obligate root parasitic plant, Phelipanche ramosa, requires a minimum 4-day conditioning period followed by stimulation by host-derived germination stimulants, such as strigolactones. Germination is then mediated by germination stimulant-dependent activation of PrCYP707A1, an abscisic acid...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erv119

    authors: Lechat MM,Brun G,Montiel G,Véronési C,Simier P,Thoiron S,Pouvreau JB,Delavault P

    更新日期:2015-06-01 00:00:00

  • The nuclear envelope protein KAKU4 determines the migration order of the vegetative nucleus and sperm cells in pollen tubes.

    abstract::A putative component protein of the nuclear lamina, KAKU4, modulates nuclear morphology in Arabidopsis thaliana seedlings, but its physiological significance is unknown. KAKU4 was highly expressed in mature pollen grains, each of which has a vegetative cell and two sperm cells. KAKU4 protein was highly abundant on the...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eraa367

    authors: Goto C,Tamura K,Nishimaki S,Maruyama D,Hara-Nishimura I

    更新日期:2020-10-22 00:00:00

  • Heat stress increases the use of cytosolic pyruvate for isoprene biosynthesis.

    abstract::The increasing occurrence of heatwaves has intensified temperature stress on terrestrial vegetation. Here, we investigate how two contrasting isoprene-emitting tropical species, Ficus benjamina and Pachira aquatica, cope with heat stress and assess the role of internal plant carbon sources for isoprene biosynthesis in...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erz353

    authors: Yáñez-Serrano AM,Mahlau L,Fasbender L,Byron J,Williams J,Kreuzwieser J,Werner C

    更新日期:2019-10-24 00:00:00

  • Naphthylphthalamic acid and the mechanism of polar auxin transport.

    abstract::Our current understanding of how plants move auxin through their tissues is largely built on the use of polar auxin transporter inhibitors. Although the most important proteins that mediate auxin transport and its regulation have probably all been identified and the mapping of their interactions is well underway, mech...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/erx323

    authors: Teale W,Palme K

    更新日期:2018-01-04 00:00:00

  • The strategy of the wheat plant in acclimating growth and grain production to nitrogen availability.

    abstract::Two cultivars of spring wheat (Triticum aestivum L.) were grown to maturity in hydroponic cultures. Nitrogen accumulation was controlled by daily growth-limiting additions of nitrate together with all other nutrients in excess. Six different curves of N accumulation were used, with the same relative changes from day t...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jexbot/51.352.1921

    authors: Oscarson P

    更新日期:2000-11-01 00:00:00

  • Emissions of putative isoprene oxidation products from mango branches under abiotic stress.

    abstract::Although several per cent of net carbon assimilation can be re-released as isoprene emissions to the atmosphere by many tropical plants, much uncertainty remains regarding its biological significance. In a previous study, we detected emissions of isoprene and its oxidation products methyl vinyl ketone (MVK) and methac...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ert202

    authors: Jardine KJ,Meyers K,Abrell L,Alves EG,Yanez Serrano AM,Kesselmeier J,Karl T,Guenther A,Chambers JQ,Vickers C

    更新日期:2013-09-01 00:00:00

  • Phytic acid prevents oxidative stress in seeds: evidence from a maize (Zea mays L.) low phytic acid mutant.

    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

    pub_type: 杂志文章

    doi:10.1093/jxb/ern345

    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

  • A comparison of manual and automated systems for soil CO2 flux measurements: trade-offs between spatial and temporal resolution.

    abstract::Soil respiration is affected by distributions of roots and soil carbon substrates and by temperature and soil water content, all of which vary spatially and temporally. The objective of this paper was to compare a manual system for measuring soil respiration in a temperate forest, which had a greater spatial distribut...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erg121

    authors: Savage KE,Davidson EA

    更新日期:2003-03-01 00:00:00

  • Expression of a cyanobacterial sucrose-phosphate synthase from Synechocystis sp. PCC 6803 in transgenic plants.

    abstract::Sucrose-phosphate synthase (SPS) from the cyanobacterium Synechocystis sp. PCC 6803 lacks all of the Ser residues known to be involved in the regulation of higher plant SPS by protein phosphorylation. The Synechocystis SPS is also not allosterically regulated by glucose 6-phosphate or orthophosphate. To investigate th...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erg023

    authors: Lunn JE,Gillespie VJ,Furbank RT

    更新日期:2003-01-01 00:00:00