Small RNA activity and function in angiosperm gametophytes.


:Small non-coding RNAs are key post-transcriptional and transcriptional regulators of plant gene expression in angiosperm sporophytes. In recent years, gametophytic small RNAs have also been investigated, predominantly in Arabidopsis male gametophytes, revealing features in common with the sporophyte as well as some surprising differences. Transcriptomic and deep-sequencing studies confirm that multiple small RNA pathways operate in male gametophytes, with over 100 miRNAs detected throughout development. Trans-acting siRNA pathways that are associated with novel phased transcripts in pollen, and the nat-siRNA pathway have important roles in pollen maturation and gamete function. Moreover, a role for siRNA-triggered silencing of transposable elements in male and female germ cells has been established, a feature in common with the role of piRNAs in animal germlines. Current evidence supports an integral role for small RNAs in angiosperm gametophyte development and it can be anticipated that novel small RNAs with significant roles in germline development and genome integrity await discovery.


J Exp Bot


Le Trionnaire G,Grant-Downton RT,Kourmpetli S,Dickinson HG,Twell D




Has Abstract


2011-03-01 00:00:00














  • 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 und...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审


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

    更新日期:2012-01-01 00:00:00

  • The evolution of reactive oxygen species metabolism.

    abstract::Reactive oxygen species (ROS) play a key role in the regulation of many biological processes in plants. Nonetheless, they are considered highly reactive and toxic to cells. Owing to their toxicity, as well as their important role in signaling, the level of ROS in cells needs to be tightly regulated. The ROS gene netwo...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审


    authors: Inupakutika MA,Sengupta S,Devireddy AR,Azad RK,Mittler R

    更新日期:2016-11-01 00:00:00

  • Interactions between cytokinin signalling and abiotic stress responses.

    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

    pub_type: 杂志文章,评审


    authors: Zwack PJ,Rashotte AM

    更新日期:2015-08-01 00:00:00

  • Mechanical properties of cuticles and their primary determinants.

    abstract::Cuticles envelope primary surfaces of the above-ground portion of plants. They function as barriers to water movement and to gas exchange, and in pathogen defense. To serve as a barrier on growing organs, cuticles must remain intact but at the same time must accommodate ongoing growth. Minimizing cuticle failure has s...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审


    authors: Khanal BP,Knoche M

    更新日期:2017-11-09 00:00:00

  • A model for intracellular movement of Cauliflower mosaic virus: the concept of the mobile virion factory.

    abstract::The genomes of many plant viruses have a coding capacity limited to <10 proteins, yet it is becoming increasingly clear that individual plant virus proteins may interact with several targets in the host for establishment of infection. As new functions are uncovered for individual viral proteins, virologists have reali...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审


    authors: Schoelz JE,Angel CA,Nelson RS,Leisner SM

    更新日期:2016-03-01 00:00:00

  • Pine and mistletoes: how to live with a leak in the water flow and storage system?

    abstract::The mistletoe, Viscum album, living on Scots pine (Pinus sylvestris) has been reported barely to regulate its transpiration and thus heavily to affect the gas exchange of its host. The extent of this mistletoe effect and its underlying mechanism has, so far, only been partially analysed. In this study, pine branches w...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Zweifel R,Bangerter S,Rigling A,Sterck FJ

    更新日期:2012-04-01 00:00:00

  • Evolving gene banks: improving diverse populations of crop and exotic germplasm with optimal contribution selection.

    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

    pub_type: 杂志文章


    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

  • Role of HSP101 in the stimulation of nodal root development from the coleoptilar node by light and temperature in maize (Zea mays L.) seedlings.

    abstract::Nodal roots (NRs) constitute the prevalent root system of adult maize plants. NRs emerge from stem nodes located below or above ground, and little is known about their inducing factors. Here, it is shown that precocious development of NRs at the coleoptilar node (NRCNs) occurred in maize seedlings when: (i) dark grown...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: López-Frías G,Martínez LM,Ponce G,Cassab GI,Nieto-Sotelo J

    更新日期:2011-08-01 00:00:00

  • Arabinogalactan proteins as molecular markers in Arabidopsis thaliana sexual reproduction.

    abstract::Some of the most important changes that occur in plants during sexual reproduction involve the transition from a sporophytic to a gametophytic type of development. In this paper, these changes were evaluated for Arabidopsis thaliana. The results obtained clearly show differences in the pattern of distribution of speci...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Coimbra S,Almeida J,Junqueira V,Costa ML,Pereira LG

    更新日期:2007-01-01 00:00:00

  • The role of VuMATE1 expression in aluminium-inducible citrate secretion in rice bean (Vigna umbellata) roots.

    abstract::Aluminium (Al)-activated citrate secretion plays an important role in Al resistance in a number of plant species, such as rice bean (Vigna umbellata). This study further characterized the regulation of VuMATE1, an aluminium-activated citrate transporter. Al stress induced VuMATE1 expression, followed by the secretion ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Liu MY,Chen WW,Xu JM,Fan W,Yang JL,Zheng SJ

    更新日期:2013-04-01 00:00:00

  • Hydraulic conductance as well as nitrogen accumulation plays a role in the higher rate of leaf photosynthesis of the most productive variety of rice in Japan.

    abstract::An indica variety Takanari is known as one of the most productive rice varieties in Japan and consistently produces 20-30% heavier dry matter during ripening than Japanese commercial varieties in the field. The higher rate of photosynthesis of individual leaves during ripening has been recognized in Takanari. By using...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Taylaran RD,Adachi S,Ookawa T,Usuda H,Hirasawa T

    更新日期:2011-07-01 00:00:00

  • Marker-based crop model assisted ideotype design to improve avoidance of abiotic stress in bread wheat.

    abstract::Wheat phenology allows escaping from seasonal abiotic stresses including frosts and high temperatures, the latter being forecasted to increase with climate change. The use of marker-based crop models to identify ideotypes has been proposed to select genotypes adapted to specific weather and management conditions and a...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Bogard M,Hourcade D,Piquemal B,Gouache D,Deswartes JC,Throude M,Cohan JP

    更新日期:2020-10-17 00:00:00

  • Capitalizing on deliberate, accidental, and GM-driven environmental change caused by crop modification.

    abstract::The transgenic traits associated with the majority of commercial genetically modified crops are focused on improving herbicide and insecticide management practices. The use of the transgenic technology in these crops and the associated chemistry has been the basis of studies that provide evidence for occasional improv...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Knox OG,Walker RL,Booth EJ,Hall C,Crossan AN,Gupta VV

    更新日期:2012-01-01 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


    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

  • Identification of woolliness response genes in peach fruit after post-harvest treatments.

    abstract::Woolliness is a physiological disorder of peaches and nectarines that becomes apparent when fruit are ripened after prolonged periods of cold storage. This disorder is of commercial importance since shipping of peaches to distant markets and storage before selling require low temperature. However, knowledge about the ...

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    pub_type: 杂志文章


    authors: González-Agüero M,Pavez L,Ibáñez F,Pacheco I,Campos-Vargas R,Meisel LA,Orellana A,Retamales J,Silva H,González M,Cambiazo V

    更新日期:2008-01-01 00:00:00

  • Salivary secretions by aphids interacting with proteins of phloem wound responses.

    abstract::Successful phloem feeding requires overcoming a number of phloem-related plant properties and reactions. The most important hurdle is formed by the phloem wound responses, such as coagulating proteins in the phloem sieve elements of the plant and in the capillary food canal in the insect's mouth parts, i.e. the stylet...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审


    authors: Tjallingii WF

    更新日期:2006-01-01 00:00:00

  • PbrMYB169 positively regulates lignification of stone cells in pear fruit.

    abstract::Stone cells negatively affect fruit quality because of their firm and lignified cell walls, so are targets for reduction in pear breeding programmes. However, there is only limited knowledge of the molecular mechanisms underlying the formation of stone cells. Here, we show that PbrMYB169, an R2R3 MYB transcription fac...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Xue C,Yao JL,Xue YS,Su GQ,Wang L,Lin LK,Allan AC,Zhang SL,Wu J

    更新日期:2019-03-27 00:00:00

  • Functional characterization of barley betaglucanless mutants demonstrates a unique role for CslF6 in (1,3;1,4)-β-D-glucan biosynthesis.

    abstract::(1,3;1,4)-β-D-glucans (mixed-linkage glucans) are found in tissues of members of the Poaceae (grasses), and are particularly high in barley (Hordeum vulgare) grains. The present study describes the isolation of three independent (1,3;1,4)-β-D-glucanless (betaglucanless; bgl) mutants of barley which completely lack (1,...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Taketa S,Yuo T,Tonooka T,Tsumuraya Y,Inagaki Y,Haruyama N,Larroque O,Jobling SA

    更新日期:2012-01-01 00:00:00

  • The roles of pleiotropy and close linkage as revealed by association mapping of yield and correlated traits of wheat (Triticum aestivum L.).

    abstract::Grain yield (GY) of bread wheat (Triticum aestivum L.) is quantitatively inherited. Correlated GY-syndrome traits such as plant height (PH), heading date (HD), thousand grain weight (TGW), test weight (TW), grains per ear (GPE), and ear weight (EW) influence GY. Most quantitative genetics studies assessed the multiple...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Schulthess AW,Reif JC,Ling J,Plieske J,Kollers S,Ebmeyer E,Korzun V,Argillier O,Stiewe G,Ganal MW,Röder MS,Jiang Y

    更新日期:2017-07-10 00:00:00

  • Meiotic cytology and chromosome behaviour in wild-type Arabidopsis thaliana.

    abstract::This article reviews the historical development of cytology and cytogenetics in Arabidopsis, and summarizes recent developments in molecular cytogenetics, with special emphasis on meiotic studies. Despite the small genome and small chromosomes of Arabidopsis, considerable progress has been made in developing appropria...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审


    authors: Armstrong SJ,Jones GH

    更新日期:2003-01-01 00:00:00

  • Integrating modelling and phenotyping approaches to identify and screen complex traits: transpiration efficiency in cereals.

    abstract::Following advances in genetics, genomics, and phenotyping, trait selection in breeding is limited by our ability to understand interactions within the plant and with the environment, and to identify traits of most relevance to the target population of environments. We propose an integrated approach that combines insig...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Chenu K,Van Oosterom EJ,McLean G,Deifel KS,Fletcher A,Geetika G,Tirfessa A,Mace ES,Jordan DR,Sulman R,Hammer GL

    更新日期:2018-06-06 00:00:00

  • Enhancing cytokinin synthesis by overexpressing ipt alleviated drought inhibition of root growth through activating ROS-scavenging systems in Agrostis stolonifera.

    abstract::Drought stress limits root growth and inhibits cytokinin (CK) production. Increases in CK production through overexpression of isopentenyltransferase (ipt) alleviate drought damages to promote root growth. The objective of this study was to investigate whether CK-regulated root growth was involved in the alteration of...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Xu Y,Burgess P,Zhang X,Huang B

    更新日期:2016-03-01 00:00:00

  • Overexpression of SIPK in tobacco enhances ozone-induced ethylene formation and blocks ozone-induced SA accumulation.

    abstract::Ozone induces rapid activation of SIPK, a mitogen-activated protein kinase (MAPK) in tobacco. Through transgenic manipulation it has previously been shown that overexpression of SIPK leads to enhanced ozone-induced lesion formation with concomitant accumulation of ROS. In spite of this hypersensitive phenotype, the ef...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Samuel MA,Walia A,Mansfield SD,Ellis BE

    更新日期:2005-08-01 00:00:00

  • The influence of cytosolic phosphorylating glyceraldehyde 3-phosphate dehydrogenase (GAPC) on potato tuber metabolism.

    abstract::The aim of this work was to investigate the importance of cytosolic phosphorylating glyceraldehyde 3-phosphate dehydrogenase (GAPC) in potato carbohydrate metabolism. For this purpose, the cytosolic isoform of phosphorylating GAPC was cloned and used for an antisense approach to generate transgenic potato plants that ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Hajirezaei MR,Biemelt S,Peisker M,Lytovchenko A,Fernie AR,Sonnewald U

    更新日期:2006-01-01 00:00:00

  • Selective transcriptional down-regulation of anther invertases precedes the failure of pollen development in water-stressed wheat.

    abstract::Water deficit during male meiosis in wheat (Triticum aestivum L.) causes pollen sterility. With a view to identifying the internal trigger for this failure, it was found that water stress specifically impairs the activities of vacuolar and cell-wall invertases in anthers prior to the arrest of pollen development. The ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Koonjul PK,Minhas JS,Nunes C,Sheoran IS,Saini HS

    更新日期:2005-01-01 00:00:00

  • A role for jasmonates in the release of dormancy by cold stratification in wheat.

    abstract::Hydration at low temperatures, commonly referred to as cold stratification, is widely used for releasing dormancy and triggering germination in a wide range of species including wheat. However, the molecular mechanism that underlies its effect on germination has largely remained unknown. Our previous studies showed th...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Xu Q,Truong TT,Barrero JM,Jacobsen JV,Hocart CH,Gubler F

    更新日期:2016-05-01 00:00:00

  • Iron deficiency differently affects peroxidase isoforms in sunflower.

    abstract::The response of both specific (ascorbate peroxidase, APX) and unspecific (POD) peroxidases and H(2)O(2) content of sunflower plants (Helianthus annuus L. cv. Hor) grown hydroponically with (C) or without (-Fe) iron in the nutrient solution were analysed to verify whether iron deficiency led to cell oxidative status. I...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Ranieri A,Castagna A,Baldan B,Soldatini GF

    更新日期:2001-01-01 00:00:00

  • Mutational analysis of functional domains within plant K+ uptake channels.

    abstract::Site-directed mutations have been generated in the pore and voltage sensor regions of the inwardly rectifying potassium channels KAT1 and KST1. The properties of mutant channels have been analysed in Xenopus oocytes, and give insights into the structure-function relations of these channels. ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Hoth S,Dreyer I,Hedrich R

    更新日期:1997-03-01 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


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

    更新日期:2007-01-01 00:00:00

  • Early changes in membrane permeability, production of oxidative burst and modification of PAL activity induced by ergosterol in cotyledons of Mimosa pudica.

    abstract::Ergosterol (a fungal membrane component) was shown to induce transient influx of protons and membrane hyperpolarization in cotyledonary cells of Mimosa pudica L. By contrast, chitosan (a fungal wall component with known elicitor properties) triggered membrane depolarization. In the processes induced by ergosterol, a s...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章


    authors: Rossard S,Luini E,Pérault JM,Bonmort J,Roblin G

    更新日期:2006-01-01 00:00:00