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Ammonium (NH4+) stress has multiple effects on plant physiology, therefore, plant responses are complex, and multiple mechanisms are involved in NH4+ sensitivity and tolerance in plants. Root growth inhibition is an important quantitative readout of the effects of NH4+ stress on plant physiology, and cell elongation appear as the principal growth inhibition target. We recently proposed autophagy as a relevant physiological mechanisms underlying NH4+
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dc.contributor.author | Robert, German | |
dc.contributor.author | Yagyu, Mako | |
dc.contributor.author | Lascano, Hernan Ramiro | |
dc.contributor.author | Masclaux-Daubresse, Céline | |
dc.contributor.author | Yoshimoto, Kohki | |
dc.date.accessioned | 2021-09-10T12:20:05Z | |
dc.date.available | 2021-09-10T12:20:05Z | |
dc.date.issued | 2021-05-06 | |
dc.identifier.issn | 1559-2316 | |
dc.identifier.issn | 1559-2324 (online) | |
dc.identifier.other | https://doi.org/10.1080/15592324.2021.1924977 | |
dc.identifier.uri | http://hdl.handle.net/20.500.12123/10225 | |
dc.identifier.uri | https://www.tandfonline.com/doi/abs/10.1080/15592324.2021.1924977 | |
dc.description.abstract | Ammonium (NH4+) stress has multiple effects on plant physiology, therefore, plant responses are complex, and multiple mechanisms are involved in NH4+ sensitivity and tolerance in plants. Root growth inhibition is an important quantitative readout of the effects of NH4+ stress on plant physiology, and cell elongation appear as the principal growth inhibition target. We recently proposed autophagy as a relevant physiological mechanisms underlying NH4+ sensitivity response in Arabidopsis. In a brief overview, the impaired macro-autophagic flux observed under NH4+ stress conditions has a detrimental impact on the cellular energetic balance, and therefore on the energy-demanding plant growth. In contrast to its inhibitory effect on the autophagosomes flux to vacuole, NH4+ toxicity induced a micro-autophagy-like process. Consistent with the reduced membrane flux to the vacuole related to macro-autophagy inhibition and the increased tonoplast degradation due to enhanced micro-autophagy, the vacuoles of the root cells of the NH4+-stressed plants showed lower tonoplast content and a decreased perimeter/area ratio. As the endosome-to-vacuole trafficking is another important process that contributes to membrane flux toward the vacuole, we evaluated the effects of NH4+ stress on this process. This allows us to propose that autophagy could contribute to vacuole development as well as possible avenues to follow for future studies. | eng |
dc.format | application/pdf | es_AR |
dc.language.iso | eng | es_AR |
dc.publisher | Taylor and Francis | es_AR |
dc.relation | info:eu-repograntAgreement/INTA/2019-PD-E6-I116-001/2019-PD-E6-I116-001/AR./Identificación y análisis funcional de genes o redes génicas de interés biotecnológico con fin agropecuario, forestal, agroalimentario y/o agroindustrial. | es_AR |
dc.rights | info:eu-repo/semantics/restrictedAccess | es_AR |
dc.source | Plant Signaling & Behavior 16 (9): e1924977 (2021) | es_AR |
dc.subject | Endocytosis | eng |
dc.subject | Vacuoles | eng |
dc.subject | Morphology | eng |
dc.subject | Cell Elongation | eng |
dc.subject | Arabidopsis | eng |
dc.subject | Endocitosis | |
dc.subject | Vacúola | |
dc.subject | Morfología | |
dc.subject | Elongación Celular | |
dc.subject.other | Ammonium Toxicity | eng |
dc.subject.other | Endomembrane Trafficking | eng |
dc.subject.other | Macroautophagy | eng |
dc.subject.other | Microautophagy | eng |
dc.title | A proposed role for endomembrane trafficking processes in regulating tonoplast content and vacuole dynamics under ammonium stress conditions in Arabidopsis root cells | es_AR |
dc.type | info:ar-repo/semantics/artículo | es_AR |
dc.type | info:eu-repo/semantics/article | es_AR |
dc.type | info:eu-repo/semantics/publishedVersion | es_AR |
dc.description.origen | Instituto de Fisiología y Recursos Genéticos Vegetales | es_AR |
dc.description.fil | Fil: Robert, German. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina | es_AR |
dc.description.fil | Fil: Robert, German. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina | es_AR |
dc.description.fil | Fil: Robert, German. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentina | es_AR |
dc.description.fil | Fil: Yagyu, Mako. Meiji University. School of Agriculture. Department of Life Sciences; Japón | es_AR |
dc.description.fil | Fil: Lascano, Hernán Ramiro. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentina | es_AR |
dc.description.fil | Fil: Lascano, Hernán Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina | es_AR |
dc.description.fil | Fil: Lascano, Hernán Ramiro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales. Argentina | es_AR |
dc.description.fil | Fil: Masclaux-Daubresse, Céline. Université Paris-Saclay. AgroParisTech. Institut Jean-Pierre Bourgin. Francia | es_AR |
dc.description.fil | Fil: Yoshimoto, Kohki. Meiji University. School of Agriculture. Department of Life Sciences; Japón | es_AR |
dc.subtype | cientifico |
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