A correlative microscopy approach relates microtubule behaviour, local organ geometry, and cell growth at the Arabidopsis shoot apical meristem.

Abstract:

:Cortical microtubules (CMTs) are often aligned in a particular direction in individual cells or even in groups of cells and play a central role in the definition of growth anisotropy. How the CMTs themselves are aligned is not well known, but two hypotheses have been proposed. According to the first hypothesis, CMTs align perpendicular to the maximal growth direction, and, according to the second, CMTs align parallel to the maximal stress direction. Since both hypotheses were formulated on the basis of mainly qualitative assessments, the link between CMT organization, organ geometry, and cell growth is revisited using a quantitative approach. For this purpose, CMT orientation, local curvature, and growth parameters for each cell were measured in the growing shoot apical meristem (SAM) of Arabidopsis thaliana. Using this approach, it has been shown that stable CMTs tend to be perpendicular to the direction of maximal growth in cells at the SAM periphery, but parallel in the cells at the boundary domain. When examining the local curvature of the SAM surface, no strict correlation between curvature and CMT arrangement was found, which implies that SAM geometry, and presumed geometry-derived stress distribution, is not sufficient to prescribe the CMT orientation. However, a better match between stress and CMTs was found when mechanical stress derived from differential growth was also considered.

journal_name

J Exp Bot

authors

Burian A,Ludynia M,Uyttewaal M,Traas J,Boudaoud A,Hamant O,Kwiatkowska D

doi

10.1093/jxb/ert352

subject

Has Abstract

pub_date

2013-12-01 00:00:00

pages

5753-67

issue

18

eissn

0022-0957

issn

1460-2431

pii

ert352

journal_volume

64

pub_type

杂志文章
  • StMYB44 negatively regulates phosphate transport by suppressing expression of PHOSPHATE1 in potato.

    abstract::Phosphorus is an important macronutrient for plant growth, but often deficient in soil. To understand the molecular basis of the complex responses of potato (Solanum tuberosum L.) to phosphate (Pi) deficiency stress, the RNA-Seq approach was taken to identify genes responding to Pi starvation in potato roots. A total ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erx026

    authors: Zhou X,Zha M,Huang J,Li L,Imran M,Zhang C

    更新日期:2017-02-01 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

    doi:10.1093/jxb/erj088

    authors: Tjallingii WF

    更新日期:2006-01-01 00:00:00

  • Quantification of insect nitrogen utilization by the venus fly trap Dionaea muscipula catching prey with highly variable isotope signatures.

    abstract::Dionaea is a highly specialized carnivorous plant species with a unique mechanism for insect capture. The leaf is converted into an osmotically driven trap that closes when an insect triggers sensory trichomes. This study investigates the significance of insect capture for growth of Dionaea at different successional s...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jexbot/52.358.1041

    authors: Schulze W,Schulze ED,Schulze I,Oren R

    更新日期:2001-05-01 00:00:00

  • An AGAMOUS MADS-box protein, SlMBP3, regulates the speed of placenta liquefaction and controls seed formation in tomato.

    abstract::AGAMOUS (AG) MADS-box transcription factors have been shown to play crucial roles in floral organ and fruit development in angiosperms. Here, we isolated a tomato (Solanum lycopersicum) AG MADS-box gene SlMBP3 and found that it is preferentially expressed in flowers and during early fruit developmental stages in the w...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ery418

    authors: Zhang J,Wang Y,Naeem M,Zhu M,Li J,Yu X,Hu Z,Chen G

    更新日期:2019-02-05 00:00:00

  • CO2 efflux, CO2 concentration and photosynthetic refixation in stems of Eucalyptus globulus (Labill.).

    abstract::In spite of the importance of respiration in forest carbon budgets, the mechanisms by which physiological factors control stem respiration are unclear. An experiment was set up in a Eucalyptus globulus plantation in central Portugal with monoculture stands of 5-year-old and 10-year-old trees. CO(2) efflux from stems u...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ern272

    authors: Cerasoli S,McGuire MA,Faria J,Mourato M,Schmidt M,Pereira JS,Chaves MM,Teskey RO

    更新日期:2009-01-01 00:00:00

  • Post-translational control of tetrapyrrole biosynthesis in plants, algae, and cyanobacteria.

    abstract::The tetrapyrrole biosynthetic pathway provides the vital cofactors and pigments for photoautotrophic growth (chlorophyll), several essential redox reactions in electron transport chains (haem), N- and S-assimilation (sirohaem), and photomorphogenic processes (phytochromobilin). While the biochemistry of the pathway is...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/err437

    authors: Czarnecki O,Grimm B

    更新日期:2012-02-01 00:00:00

  • Maternal control of seed size in plants.

    abstract::Seed size is a key determinant of evolutionary fitness, and is also one of the most important components of seed yield. In angiosperms, seed development begins with double fertilization, which leads to the formation of a diploid embryo and a triploid endosperm. The outermost layer of the seed is the seed coat, which d...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/eru549

    authors: Li N,Li Y

    更新日期:2015-02-01 00:00:00

  • Modification of tomato growth by expression of truncated ERECTA protein from Arabidopsis thaliana.

    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

    pub_type: 杂志文章

    doi:10.1093/jxb/ers305

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

    更新日期:2012-11-01 00:00:00

  • ABA-dependent control of GIGANTEA signalling enables drought escape via up-regulation of FLOWERING LOCUS T in Arabidopsis thaliana.

    abstract::One strategy deployed by plants to endure water scarcity is to accelerate the transition to flowering adaptively via the drought escape (DE) response. In Arabidopsis thaliana, activation of the DE response requires the photoperiodic response gene GIGANTEA (GI) and the florigen genes FLOWERING LOCUS T (FT) and TWIN SIS...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erw384

    authors: Riboni M,Robustelli Test A,Galbiati M,Tonelli C,Conti L

    更新日期:2016-12-01 00:00:00

  • Brefeldin A affects adhesion of zoospores of the green alga Enteromorpha.

    abstract::Primary adhesion of zoospores of the green macroalga Enteromorpha to substrata involves a massive release of adhesive glycoproteins from Golgi-derived, membrane-bounded vesicles in the anterior region of the spore, followed by rapid curing. This process is sensitive to low concentrations (5-10 microg x ml(-1)) of the ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jexbot/52.360.1409

    authors: Callow ME,Crawford S,Wetherbee R,Taylor K,Finlay JA,Callow JA

    更新日期:2001-07-01 00:00:00

  • Trehalose metabolism in Arabidopsis: occurrence of trehalose and molecular cloning and characterization of trehalose-6-phosphate synthase homologues.

    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

    pub_type: 杂志文章

    doi:10.1093/jexbot/52.362.1817

    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

  • Overexpression of a putative Arabidopsis BAHD acyltransferase causes dwarfism that can be rescued by brassinosteroid.

    abstract::Plant growth and development are ensured through networks of complex regulatory schemes. Genetic approaches have been invaluable in dissecting these regulatory pathways. This study reports the isolation of a semi-dominant dwarf mutant designated abnormal shoot1-1 dominant (abs1-1D) through an Arabidopsis T-DNA activat...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ers227

    authors: Wang M,Liu X,Wang R,Li W,Rodermel S,Yu F

    更新日期:2012-10-01 00:00:00

  • Non-coding RNA may be associated with cytoplasmic male sterility in Silene vulgaris.

    abstract::Cytoplasmic male sterility (CMS) is a widespread phenomenon in flowering plants caused by mitochondrial (mt) genes. CMS genes typically encode novel proteins that interfere with mt functions and can be silenced by nuclear fertility-restorer genes. Although the molecular basis of CMS is well established in a number of ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erx057

    authors: Stone JD,Koloušková P,Sloan DB,Štorchová H

    更新日期:2017-03-01 00:00:00

  • PacCYP707A2 negatively regulates cherry fruit ripening while PacCYP707A1 mediates drought tolerance.

    abstract::Sweet cherry is a non-climacteric fruit and its ripening is regulated by abscisic acid (ABA) during fruit development. In this study, four cDNAs (PacCYP707A1-4) encoding 8'-hydroxylase, a key enzyme in the oxidative catabolism of ABA, were identified in sweet cherry fruits using tobacco rattle virus-induced gene silen...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erv169

    authors: Li Q,Chen P,Dai S,Sun Y,Yuan B,Kai W,Pei Y,He S,Liang B,Zhang Y,Leng P

    更新日期:2015-07-01 00:00:00

  • Involvement of brassinosteroid signals in the floral-induction network of Arabidopsis.

    abstract::The transition to flowering is known to be regulated by numerous interacting endogenous and environmental cues, of which brassinosteroids (BRs), a group of polyhydroxylated steroid phytohormones, appear to be linked to the regulation of flowering time. In Arabidopsis, BR biosynthetic det2 mutants exhibited delayed flo...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章,评审

    doi:10.1093/jxb/erq241

    authors: Li J,Li Y,Chen S,An L

    更新日期:2010-10-01 00:00:00

  • Calcium deprivation disrupts enlargement of Chara corallina cells: further evidence for the calcium pectate cycle.

    abstract::Pectin is a normal constituent of cell walls of green plants. When supplied externally to live cells or walls isolated from the large-celled green alga Chara corallina, pectin removes calcium from load-bearing cross-links in the wall, loosening the structure and allowing it to deform more rapidly under the action of t...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ers089

    authors: Proseus TE,Boyer JS

    更新日期:2012-06-01 00:00:00

  • Activity of tonoplast proton pumps and Na+/H+ exchange in potato cell cultures is modulated by salt.

    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

    pub_type: 杂志文章

    doi:10.1093/jxb/erp011

    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

  • CIRCADIAN CLOCK ASSOCIATED 1 and ATAF2 differentially suppress cytochrome P450-mediated brassinosteroid inactivation.

    abstract::Brassinosteroids (BRs) are a group of steroid hormones regulating plant growth and development. Since BRs do not undergo transport among plant tissues, their metabolism is tightly regulated by transcription factors (TFs) and feedback loops. BAS1 (CYP734A1, formerly CYP72B1) and SOB7 (CYP72C1) are two BR-inactivating c...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erz468

    authors: Peng H,Neff MM

    更新日期:2020-01-23 00:00:00

  • Molecular phylogeny and forms of photosynthesis in tribe Salsoleae (Chenopodiaceae).

    abstract::While many C4 lineages have Kranz anatomy around individual veins, Salsoleae have evolved the Salsoloid Kranz anatomy where a continuous dual layer of chlorenchyma cells encloses the vascular and water-storage tissue. With the aim of elucidating the evolution of C4 photosynthesis in Salsoleae, a broadly sampled molecu...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erw432

    authors: Schüssler C,Freitag H,Koteyeva N,Schmidt D,Edwards G,Voznesenskaya E,Kadereit G

    更新日期:2017-01-01 00:00:00

  • Demonstration of a diel trend in sensitivity of Gossypium to ozone: a step toward relating O₃ injury to exposure or flux.

    abstract::Plant injury by ozone (O3) occurs in three stages, O3 entrance through stomata, overcoming defences, and attack on bioreceptors. Concentration, deposition, and uptake of O3 are accessible by observation and modelling, while injury can be assessed visually or through remote sensing. However, the relationship between O3...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/ert032

    authors: Grantz DA,Vu HB,Heath RL,Burkey KO

    更新日期:2013-04-01 00:00:00

  • Metabolic routes affecting rubber biosynthesis in Hevea brasiliensis latex.

    abstract::The cytosolic mevalonate (MVA) pathway in Hevea brasiliensis latex is the conventionally accepted pathway which provides isopentenyl diphosphate (IPP) for cis-polyisoprene (rubber) biosynthesis. However, the plastidic 2-C-methyl-D-erythritol 4-phosphate (MEP) pathway may be an alternative source of IPP since its more ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/err363

    authors: Chow KS,Mat-Isa MN,Bahari A,Ghazali AK,Alias H,Mohd-Zainuddin Z,Hoh CC,Wan KL

    更新日期:2012-03-01 00:00:00

  • A nitric oxide burst precedes apoptosis in angiosperm and gymnosperm callus cells and foliar tissues.

    abstract::Leaves and callus of Kalanchoë daigremontiana and Taxus brevifolia were used to investigate nitric oxide-induced apoptosis in plant cells. The effect of nitric oxide (NO) was studied by using a NO donor, sodium nitroprusside (SNP), a nitric oxide-synthase (NOS) inhibitor, N:(G)-monomethyl-L-arginine (NMMA), and centri...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jexbot/51.347.1027

    authors: Pedroso MC,Magalhaes JR,Durzan D

    更新日期:2000-06-01 00:00:00

  • Large variation in the Rubisco kinetics of diatoms reveals diversity among their carbon-concentrating mechanisms.

    abstract::While marine phytoplankton rival plants in their contribution to global primary productivity, our understanding of their photosynthesis remains rudimentary. In particular, the kinetic diversity of the CO2-fixing enzyme, Rubisco, in phytoplankton remains unknown. Here we quantify the maximum rates of carboxylation (k c...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erw163

    authors: Young JN,Heureux AM,Sharwood RE,Rickaby RE,Morel FM,Whitney SM

    更新日期:2016-05-01 00:00:00

  • Variation in the shoot calcium content of angiosperms.

    abstract::This study describes the variation in the mean relative shoot Ca content within the angiosperms at the ordinal level. Data were derived from studies in the literature in which the shoot Ca content of two or more species had been compared, and from a hydroponic experiment in which plants were selected to represent the ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erg143

    authors: Broadley MR,Bowen HC,Cotterill HL,Hammond JP,Meacham MC,Mead A,White PJ

    更新日期:2003-05-01 00:00:00

  • A defence-related Olea europaea β-glucosidase hydrolyses and activates oleuropein into a potent protein cross-linking agent.

    abstract::Oleuropein, the major secoiridoid compound in olive, is involved in a sophisticated two-component defence system comprising a β-glucosidase enzyme that activates oleuropein into a toxic glutaraldehyde-like structure. Although oleuropein deglycosylation studies have been monitored extensively, an oleuropein β-glucosida...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erv002

    authors: Koudounas K,Banilas G,Michaelidis C,Demoliou C,Rigas S,Hatzopoulos P

    更新日期:2015-04-01 00:00:00

  • Xylem tension affects growth-induced water potential and daily elongation of maize leaves.

    abstract::Diurnal rates of leaf elongation vary in maize (Zea mays L.) and are characterized by a decline each afternoon. The cause of the afternoon decline was investigated. When the atmospheric environment was held constant in a controlled environment, and water and nutrients were adequately supplied to the soil or the roots ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erm371

    authors: Tang AC,Boyer JS

    更新日期:2008-01-01 00:00:00

  • Cadmium-induced changes in the growth and oxidative metabolism of pea plants.

    abstract::The effect of growing pea (Pisum sativum L.) plants with CdCl(2) (0-50 microM) on different plant physiological parameters and antioxidative enzymes of leaves was studied in order to know the possible involvement of this metal in the generation of oxidative stress. In roots and leaves of pea plants Cd produced a signi...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jexbot/52.364.2115

    authors: Sandalio LM,Dalurzo HC,Gómez M,Romero-Puertas MC,del Río LA

    更新日期:2001-11-01 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

    doi:10.1093/jxb/erw382

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

    更新日期:2016-11-01 00:00:00

  • Mutations in the Arabidopsis SWC6 gene, encoding a component of the SWR1 chromatin remodelling complex, accelerate flowering time and alter leaf and flower development.

    abstract::Mutations affecting the Arabidopsis SWC6 gene encoding a putative orthologue of a component of the SWR1 chromatin remodelling complex in plants have been characterized. swc6 mutations cause early flowering, shortened inflorescence internodes, and altered leaf and flower development. These phenotypic defects resemble t...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/erm332

    authors: Lázaro A,Gómez-Zambrano A,López-González L,Piñeiro M,Jarillo JA

    更新日期:2008-01-01 00:00:00

  • Bridging old and new: diversity and evaluation of high iron-associated stress response of rice cultivated in West Africa.

    abstract::Adoption of rice varieties that perform well under high iron-associated (HIA) stress environments can enhance rice production in West Africa. This study reports the genetic characterization of 323 rice accessions and breeding lines cultivated in West Africa using genotyping-by-sequencing and their phenotypic response ...

    journal_title:Journal of experimental botany

    pub_type: 杂志文章

    doi:10.1093/jxb/eraa182

    authors: Diop B,Wang DR,Drame KN,Gracen V,Tongoona P,Dzidzienyo D,Nartey E,Greenberg AJ,Djiba S,Danquah EY,McCouch SR

    更新日期:2020-07-06 00:00:00