Abstract:
:C-TERMINALLY ENCODED PEPTIDEs (CEPs) control root system architecture in a non-cell-autonomous manner. In Medicago truncatula, MtCEP1 affects root development by increasing nodule formation and inhibiting lateral root emergence by unknown pathways. Here, we show that the MtCEP1 peptide-dependent increase in nodulation requires the symbiotic signaling pathway and ETHYLENE INSENSITIVE2 (EIN2)/SICKLE (SKL), but acts independently of SUPER NUMERIC NODULES. MtCEP1-dependent inhibition of lateral root development acts through an EIN2-independent mechanism. MtCEP1 increases nodulation by promoting rhizobial infections, the developmental competency of roots for nodulation, the formation of fused nodules, and an increase in frequency of nodule development that initiates at proto-phloem poles. These phenotypes are similar to those of the ein2/skl mutant and support that MtCEP1 modulates EIN2-dependent symbiotic responses. Accordingly, MtCEP1 counteracts the reduction in nodulation induced by increasing ethylene precursor concentrations, and an ethylene synthesis inhibitor treatment antagonizes MtCEP1 root phenotypes. MtCEP1 also inhibits the development of EIN2-dependent pseudonodule formation. Finally, mutants affecting the COMPACT ROOT ARCHITECTURE2 (CRA2) receptor, which is closely related to the Arabidopsis CEP Receptor1, are unresponsive to MtCEP1 effects on lateral root and nodule formation, suggesting that CRA2 is a CEP peptide receptor mediating both organogenesis programs. In addition, an ethylene inhibitor treatment counteracts the cra2 nodulation phenotype. These results indicate that MtCEP1 and its likely receptor, CRA2, mediate nodulation and lateral root development through different pathways.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Mohd-Radzman NA,Laffont C,Ivanovici A,Patel N,Reid D,Stougaard J,Frugier F,Imin N,Djordjevic MAdoi
10.1104/pp.16.00113subject
Has Abstractpub_date
2016-08-01 00:00:00pages
2536-48issue
4eissn
0032-0889issn
1532-2548pii
pp.16.00113journal_volume
171pub_type
杂志文章相关文献
PLANT PHYSIOLOGY文献大全abstract::The chloroplastic and cytosolic forms of spinach (Spinacia oleracea cv Long Standing Bloomsdale) leaf NADH:dihydroxyacetone phosphate (DHAP) reductase were separated and partially purified. The chloroplastic form was stimulated by dithiothreitol, reduced thioredoxin, dihydrolipoic acid, 6-phosphogluconate, and phospha...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.87.2.379
更新日期:1988-06-01 00:00:00
abstract::The concentrations of indole-3-acetic acid (IAA), naphthaleneacetic acid (NAA) and 2,4-dichlorophenoxyacetic acid (2,4-D) were followed for 35 days in cell-free liquid medium containing 100, 50, or 0% Murashige-Skoog (MS) salt base. Although the concentrations of NAA or 2,4-D remained constant the level of IAA decreas...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.81.3.934
更新日期:1986-07-01 00:00:00
abstract::Lipase (triacylglycerol acylhydrolase [EC 3.1.1.3.]) was extracted from the microsomal fraction of cotyledons of dark grown seedlings of Canola (Brassica napus L. cv Westar) by treatment with Triton X-100. The enzyme was partially purified by chromatography on Sephacryl S-300 and DEAE Bio-Gel and was stable when store...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.91.4.1303
更新日期:1989-12-01 00:00:00
abstract::We identified a T-DNA-generated mutation in the chaperonin-60alpha gene of Arabidopsis that produces a defect in embryo development. The mutation, termed schlepperless (slp), causes retardation of embryo development before the heart stage, even though embryo morphology remains normal. Beyond the heart stage, the slp m...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.126.2.717
更新日期:2001-06-01 00:00:00
abstract::The activity of 1,3-beta-d-glucan synthase assayed in the presence of digitonin in a microsomal preparation from suspension-cultured cells of Glycine max can be fully inhibited by unsaturated fatty acids, trienoic acids being most effective. Lysophosphatidylcholine, platelet-activating factor, acylcarnitine, and Echin...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.80.1.7
更新日期:1986-01-01 00:00:00
abstract::We investigated the function of cell wall hydroxyproline-rich glycoproteins by observing the effects of a selective inhibitor of prolyl hydroxylase, 3,4-dehydro-L-proline (Dhp), on wall regeneration by Nicotiana tabacum mesophyll cell protoplasts. Protoplasts treated with micromolar concentrations of Dhp do not develo...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.104.2.747
更新日期:1994-02-01 00:00:00
abstract::The role of iron in regulating light harvesting and photochemical energy conversion processes was examined in the marine unicellular chlorophyte Dunaliella tertiolecta and the marine diatom Phaeodactylum tricornutum. In both species, iron limitation led to a reduction in cellular chlorophyll concentrations, but an inc...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.100.2.565
更新日期:1992-10-01 00:00:00
abstract::This work was undertaken in an effort to reconcile the conflicting proline-accumulating responses of the barley (Hordeum vulgare L.) cultivars, Excelsior and Proctor, reported by Singh et al. (1972) and Hanson et al. (1976). It deals with the effects of different vapor pressure deficits (VPD) during growth and subsequ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.98.2.716
更新日期:1992-02-01 00:00:00
abstract::Electron transport activity at the cell surface of intact oat seedlings (Avena sativa L. cv Garry) was examined by measuring the oxidation and/or reduction of agents in the medium bathing the roots. Oxidation of NADH with or without added electron acceptors and reduction of ferricyanide by an endogenous electron donor...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.76.2.386
更新日期:1984-10-01 00:00:00
abstract::This report examines the effect of anaerobic stress on the expression of sucrose synthase in maize (Zea mays L.). Following 24 hours of anaerobic treatment, alcohol dehydrogenase displayed the classical characteristics of induction: increased mRNA and protein levels. However, there was no detectable increase in sucros...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.87.2.542
更新日期:1988-06-01 00:00:00
abstract::A double pressure probe technique was used to measure simultaneously water flows and hydraulic parameters of individual cells and of excised roots of young seedlings of maize (Zea mays L.) in osmotic experiments. By following initial flows of water at the cell and root level and by estimating the profiles of driving f...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.95.1.305
更新日期:1991-01-01 00:00:00
abstract::While the importance of cell type specificity in plant adaptive responses is widely accepted, only a limited number of studies have addressed this issue at the functional level. We have combined electrophysiological, imaging, and biochemical techniques to reveal the physiological mechanisms conferring higher sensitivi...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.16.01347
更新日期:2016-12-01 00:00:00
abstract::The effect of controlled trypsin digestion of a calmodulin-stimulated Ca2+-ATPase in low-density intracellular membranes from cauliflower (Brassica oleracea L.) inflorescences was investigated. Ca2+ uptake into vesicles was measured either continuously with the fluorescent Ca2+ indicator Calcium Green-5N or with a rad...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.110.3.913
更新日期:1996-03-01 00:00:00
abstract::Five recombinant inbred lines (RILs) of Arabidopsis (Arabidopsis thaliana), previously selected from the Bay-0 x Shahdara RIL population on the basis of differential leaf senescence phenotypes (from early senescing to late senescing) when cultivated under nitrogen (N)-limiting conditions, were analyzed to monitor meta...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.108.119040
更新日期:2008-07-01 00:00:00
abstract::Maximizing light capture by light-harvesting pigment optimization represents an attractive but challenging strategy to improve photosynthetic efficiency. Here, we report that loss of a previously uncharacterized gene, HIGH PHOTOSYNTHETIC EFFICIENCY1 (HPE1), optimizes light-harvesting pigments, leading to improved phot...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.16.00698
更新日期:2016-11-01 00:00:00
abstract::The cyanobacterial CO2-concentrating mechanism (CCM) allows photosynthesis to proceed in CO2-limited aquatic environments, and its activity is modulated in response to inorganic carbon (Ci) availability. Real-time reverse transcriptase-PCR analysis was used to examine the transcriptional regulation of more than 30 CCM...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.103.029728
更新日期:2003-12-01 00:00:00
abstract::Two cDNAs encoding functional carbonic anhydrase (CA) enzymes were recently isolated from a non-photosynthetic, cotyledon library of cotton (Gossypium hirsutum) seedlings with putative plastid-targeting sequences (GenBank accession nos. AF132854 and AF132855). Relative CA transcript abundance and enzyme activity incre...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.010879
更新日期:2002-04-01 00:00:00
abstract::Auxin biosynthesis was analyzed in a maize (Zea mays) kernel culture system in which the seeds develop under physiological conditions similar to the in vivo situation. This system was modified for precursor feeding experiments. Tryptophan (Trp) is efficiently incorporated into indole-3-acetic acid (IAA) with retention...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.123.3.1109
更新日期:2000-07-01 00:00:00
abstract::The plant hormone jasmonic acid (JA) plays a pivotal role in plant-insect interactions. Herbivore attack usually elicits dramatic increases in JA concentrations, which in turn activate the accumulation of metabolites that function as defenses against herbivores. Although almost all enzymes involved in the biosynthesis...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.112.199018
更新日期:2012-08-01 00:00:00
abstract::In characterizing the enzymes involved in the formation of very long-chain fatty acids (VLCFAs) in the Brassicaceae, we have generated a series of mutants of Arabidopsis thaliana that have reduced VLCFA content. Here we report the characterization of a seed lipid mutant, AS11, which, in comparison to wild type (WT), h...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.108.1.399
更新日期:1995-05-01 00:00:00
abstract::Here, we investigated the physiological role of Arabidopsis (Arabidopsis thaliana) AtNUDX6, the gene encoding ADP-ribose (Rib)/NADH pyrophosphohydrolase, using its overexpressor (Pro35S:AtNUDX6) or disruptant (KO-nudx6). The level of NADH in Pro35S:AtNUDX6 and KO-nudx6 plants was decreased and increased, respectively,...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.110.153569
更新日期:2010-04-01 00:00:00
abstract::Pectin methylesterase (PME) controls the methylesterification status of pectins and thereby determines the biophysical properties of plant cell walls, which are important for tissue growth and weakening processes. We demonstrate here that tissue-specific and spatiotemporal alterations in cell wall pectin methylesterif...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.114.247429
更新日期:2015-01-01 00:00:00
abstract::Diethylstibestrol (DES) inhibited noncompetitively the ATPase in the plasma membrane fraction from Avena sativa L. cv. Goodfield roots when assayed in the presence of MgSO(4) or MgSO(4) plus KCl. In the presence of MgSO(4), 7.1x10(-5) molar DES inhibited the enzyme 50%; whereas in the presence of MgSO(4) and KCl, 1.3x...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.63.1.48
更新日期:1979-01-01 00:00:00
abstract::This work tested one aspect of the relations between membrane permeability and fruit ripening. Membrane permeability was measured as [(3)H]water efflux rate from preloaded fruit pericarp disks. Different stages of fruit development were compared between two tomato (Lycopersicon esculentum Mill) strains: the normal Rut...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.56.6.813
更新日期:1975-12-01 00:00:00
abstract::Response regulators of two-component systems play pivotal roles in the transcriptional regulation of responses to environmental signals in bacteria. Rre37, an OmpR-type response regulator, is induced by nitrogen depletion in the unicellular cyanobacterium Synechocystis species PCC 6803. Microarray and quantitative rea...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.113.232025
更新日期:2014-04-01 00:00:00
abstract::Enzymes dissociated from corn (hybrid B73 x Mo17) seedling cell walls by solutions of high ionic strength possess the capacity to degrade Avena caryopsis glucan. Inhibitor studies disclosed that both endo- and exoenzyme activities were involved and that the reaction sequence paralleled the autolytic solubilization of ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.65.5.768
更新日期:1980-05-01 00:00:00
abstract::Dimethylallyl diphosphate (DMADP) and geranyl diphosphate (GDP) are the last precursors of isoprene and monoterpenes emitted by leaves, respectively. DMADP and GDP pools were measured in leaves of plants emitting isoprene (Populus alba), monoterpenes (Quercus ilex and Mentha piperita), or nonemitting isoprenoids (Prun...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.105.073213
更新日期:2006-06-01 00:00:00
abstract::The phytochrome (phy) family of sensory photoreceptors (phyA-phyE in Arabidopsis thaliana) induces changes in target-gene expression upon light-induced translocation to the nucleus, where certain members interact with selected members of the constitutively nuclear basic helix-loop-helix transcription factor family, su...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.107.105601
更新日期:2007-11-01 00:00:00
abstract::Side chains of sugar beet (Beta vulgaris) pectins, which are mainly composed of arabinose (Ara) and galactose (Gal) residues, are esterified by ferulic acid units. Enzymatic hydrolysis of beet cell walls yielded several feruloylated oligosaccharides, which were separated by hydrophobic interaction chromatography. Two ...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.103.035311
更新日期:2004-03-01 00:00:00
abstract::Plasmodesmata act as key elements in intercellular communication, coordinating processes related to plant growth, development, and responses to environmental stresses. While many of the developmental, biotic, and abiotic signals are primarily perceived at the plasma membrane (PM) by receptor proteins, plasmodesmata al...
journal_title:Plant physiology
pub_type: 杂志文章
doi:10.1104/pp.19.00473
更新日期:2019-09-01 00:00:00