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The WAK-like protein RFO1 acts as a sensor of the pectin methylation status in Arabidopsis cell walls to modulate root growth and defense

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Molecular Plant 2023年第5期16卷 865-881页

作者： Apolonio I.Huerta Gloria Sancho-Andre´s Juan Carlos Montesinos Javier Silva-Navas Sole`ne Bassard Corinne Pau-Roblot Christopher Kesten Rudolf Schlechter Susanne Dora temurkhan ayupov Je´rome Pelloux^ Julia Santiago Clara Sa´nchez-Rodrı´guez ETH Zurich Institute of Molecular Plant Biology(D-BIOL)ZurichSwitzerland University of Lausanne Department of Plant Molecular BiologyLausanneSwitzerland UMRT INRAE 1158 BioEcoAgro–BIOPI Biologie des Plantes et Innovation Universite´de Picardie33 Rue St Leu80039 AmiensFrance Present address:Lonza AG VispVisSwitzerland Present address:Institute of Microbiology Freie Universitat BerlinBerlinGermany Present address:Institute of Molecular and Clinical Ophthalmology-Basel BaselSwitzerland Present address:Centro de Biotecnologı´a y Geno´mica de Plantas Universidad Polite´cnica de Madrid(UPM)–Instituto Nacional de Investigacio´n y Tecnologı´a Agraria y Alimentaria(INIA/CSIC)Campus de Montegancedo UPM28223 Pozuelo de Alarco´nSpain

Most organisms adjust their development according to the environmental conditions.For the majority,this implies the sensing of alterations to cell walls caused by different cues.Despite the relevance of this process,few molecular players involved in cell wall sensing are known and characterized.Here,we show that the wall-associated kinase-like protein RESISTANCE TO FUSARIUM OXYSPORUM 1(RFO1)is required for plant growth and early defense against Fusarium oxysporum and functions by sensing changes in the pectin methylation levels in the cell wall.The RFO1 dwell time at the plasma membrane is affected by the pectin methylation status at the cell wall,regulating MITOGEN-ACTIVATED PROTEIN KINASE and gene expression.We show that the extracellular domain of RFO1 binds de-methylated pectin in vitro,whose distribution in the cell wall is altered during F.oxysporum infection.Further analyses also indicate that RFO1 is required for the BR-dependent plant growth alteration in response to inhibition of pectin de-methyl-esterase activity at the cell wall.Collectively,our work demonstrates that RFO1 is a sensor of the pectin methylation status that plays a unique dual role in plant growth and defense against vascular pathogens.

关键词： alterations walls pectin

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The Classification of Filiform Leibniz Superalgebras of Nilindex n+m

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Acta Mathematica Sinica,English Series 2009年第2期25卷 171-190页

作者： Sh.A.ayupov B.A.OMIROV A.Kh.KHUDOYBERDIYEV Institute of Mathematics and Information Technologies of Academy Sciences of Uzbekistan Department of Mathematics National University of Uzbekistan

In this work the classification of filiform Leibniz superalgebras of nilindex n ＋ m, where n and m （m≠0） are dimensions of even and odd parts, respectively, is obtained.

关键词： Lie superalgebras Leibniz superalgebras nilpotency characteristic sequence

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