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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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Role of double-balloon enteroscopy in malignant small bowel tumors

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World Journal of Gastrointestinal Endoscopy 2015年第6期7卷 652-658页

作者： Enrique Pérez-Cuadrado Robles Pilar Esteban Delgado Paloma Bebia conesa Blanca Martínez Andrés Milivoj Franulic Guggiana Eduardo Alcaraz Mateos Mariana Fernández Caballero José luis Rodrigo Agudo Silvia Chacón Martínez Rafael latorre Federico Soria Juan Manuel Herrerías Gutiérrez Enrique Pérez-Cuadrado Martínez Department of Gastroenterology Morales Meseguer Hospital Department of Radiology Morales Meseguer Hospital Department of Pathology Morales Meseguer Hospital Department of Hematology and Oncology Morales Meseguer Hospital Department of Anatomy University of Murcia Centre Jesus Usón Hospital Universitario Virgen Macarena

AIM: To assess the double-balloon enteroscopy(DBE) role in malignant small bowel tumors(MSBT).METHODS: This is a retrospective descriptive study performed in a single center. All consecutive patients who underwent a DBE with final diagnosis of a malignant neoplasm from 2004 to 2014 in our referral center were included. Patient demographic and clinical pathological characteristics were recorded and reviewed. MSBT diagnosis was achieved either by DBE directed biopsy with multiple tissue sampling, endoscopic findings or histological analysis of surgical specimen. We have analyzed double-balloon enteroscopy impact in outcome and clinical course of these patients. RESUlTS: Of 627 patients, 28(4.5%)(mean age = 60 ± 17.3 years) underwent 30 procedures(25 anterograde, 5 retrograde) and were diagnosed of a malignant tumor. Patients presented with obscure gastrointestinal bleeding(n = 19, 67.9%), occlusion syndrome(n = 7, 25%) and diarrhea(n = 1, 3.6%). They were diagnosed by DBE biopsy(n = 18, 64.3%), histological analysis of surgical specimen(n = 7, 25%) and unequivocal endoscopic findings(n = 2, 7.1%). Gastrointestinal stromal tumor(n = 8, 28.6%), adenocarcinoma(n = 7, 25%), lymphoma(n = 4, 14.3%), neuroendocrine tumor(n = 4, 14.3%), metastatic(n = 3, 10.7%) and Kaposi sarcoma(n = 1, 3.6%) were identified. DBE modified outcome in 7 cases(25%), delaying or avoiding emergency surgery(n = 3), modifying surgery approach(n = 2) and indicating emergency SB partial resection instead of elective approach(n = 2).COnClUSIOn: DBE may be critical in the management of MSBT providing additional information that may be decisive in the clinical course of these patients.

关键词： Double balloon enteroscopy Malignantsmall bowel tumors Obscure gastrointestinal bleeding Gastrointestinal stromal tumor Occlusion syndrome

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