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Temperature changes in the root ecosystem affect plant functionality

Plant Communications 2023年第3期4卷 197-214页

作者： mary paz gonzález-garcía Carlos M.Conesa Alberto Lozano-Enguita Victoria Baca-gonzález Bárbara Simancas Sara Navarro-Neila María Sánchez-Bermúdez Isai Salas-gonzález Elena Caro Gabriel Castrillo Juan C.del Pozo Centro de Biotecnología y Genómica de Plantas(UPM-INIA/CSIC) Universidad Politécnica de Madrid(UPM)-Instituto Nacional de Investigación y Tecnología Agrariay Alimentaria-CSIC(INIA/CSIC)Campus Montegancedo28223 Pozuelo de Alarcón(Madrid)Spain Departamento de Biotecnología-Biología Vegetal Escuela Técnica Superior de Ingeniería AgronómicaAlimentaria y de BiosistemasUniversidad Politécnica de Madrid(UPM)28040 MadridSpain Undergraduate Program in Genomic Sciences Center for Genomics SciencesUniversidad Nacional Autonóma de MéxicoAv.Universidad s/n.Col.ChamilpaCuernavaca 62210MorelosMéxico Future Food Beacon of Excellence&School of Biosciences University of NottinghamSutton BoningtonUK

Climate change is increasing the frequency of extreme heat events that aggravate its negative impact on plant development and agricultural *** experiments designed to study plant adaption to heat stress apply homogeneous high temperatures to both shoot and ***,this treatment does not mimic the conditions in natural fields,where roots grow in a dark environment with a descending temperature *** high temperatures severely decrease cell division in the root meristem,compromising root growth,while increasing the division of quiescent center cells,likely in an attempt to maintain the stem cell niche under such harsh ***,we engineered the TGRooZ,a device that generates a temperature gradient for in vitro or greenhouse growth *** root systems of plants exposed to high shoot temperatures but cultivated in theTGRooZ grow efficiently and maintain their functionality to sustain proper shoot growth and ***,gene expression and rhizosphere or root microbiomecomposition are significantly less affected in TGRooZ-grown roots than in high-temperature-grown roots,correlating with higher root *** data indicate that use of the TGRooZ in heat-stress studies can improve our knowledge of plant response to high temperatures,demonstrating its applicability from laboratory studies to the field.

关键词： heat stress root temperature gradient nutrition gene expression microbiome

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CD5 expression promotes IL-10 production through activation of the MAPK/Erk pathway and upregulation of TRPC1 channels in B lymphocytes

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Cellular & Molecular Immunology 2018年第2期15卷 158-170页

作者： Soizic Garaud Taher E Taher Marjolaine Debant Miguel Burgos Sarra Melayah Christian Berthou Kaushal Parikh Jacques-Olivier Pers Damien Luque-paz Gilles Chiocchia Maikel Peppelenbosch David A Isenberg Pierre Youinou Olivier Mignen Yves Renaudineau Rizgar A Mageed INSERM ERI29/EA2216 réseau epigenetique and réseau canaux ioniques du Cancéropôle Grand OuestBrest University Medical SchoolBrest29609France Centre for Experimental Medicine and Rheumatology William Harvey Research InstituteBarts and the London School of Medicine and DentistryQueen Mary University of LondonLondonEC1M 6BQUK Canalopathy and Calcium Signaling INSERM UMR1078Brest29238France Centre for Experimental and Molecular Medicine Academic Medical CenterMeibergdreef 9Amsterdam1105 AZThe Netherlands Laboratory of Immunology and Immunotherapy CHU MorvanBrest29609France Institut Cochin INSERM U567Paris75014France Department of Gastroenterology and Hepatology Erasmus MCGravendijkwal 230Rotterdam015 CERotterdamThe Netherlands Centre for Rheumatology University College LondonLondonWC1E 6JFUK

CD5 is constitutively expressed on T cells and a subset of mature normal and leukemic B cells in patients with chronic lymphocytic leukemia(CLL).Important functional properties are associated with CD5 expression in B cells,including signal transducer and activator of transcription 3 activation,IL-10 production and the promotion of B-lymphocyte survival and ***,the pathway(s)by which CD5 influences the biology of B cells and its dependence on B-cell receptor(BCR)co-signaling remain *** this study,we show that CD5 expression activates a number of important signaling pathways,including Erk1/2,leading to IL-10 production through a novel pathway independent of BCR *** pathway is dependent on extracellular calcium(Ca2+)entry facilitated by upregulation of the transient receptor potential channel 1(TRPC1)*** also show that Erk1/2 activation in a subgroup of CLL patients is associated with TRPC1 *** this subgroup of CLL patients,small inhibitory RNA(siRNA)for CD5 reduces TRPC1 ***,siRNAs for CD5 or for TRPC1 inhibit IL-10 *** findings provide new insights into the role of CD5 in B-cell biology in health and disease and could pave the way for new treatment strategies for patients with B-CLL.

关键词： B cells calcium CD5 MAPK/Erk TRPC1

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