In vivo metabolic regulation of alternative oxidase under nutrient deficiency-interaction with arbuscular mycorrhizal fungi and Rhizobium bacteria
Ortíz, José (Universidad de Concepción. Departamento de Botánica (Chile))
Sanhueza, Carolina (Universidad de Concepción. Departamento de Botánica (Chile))
Romero Munar, Antònia (Centro de Estudios Avanzados en Fruticultura (Chile))
Hidalgo Castellanos, Javier (Universidad de Granada. Departamento de Fisiología Vegetal)
Castro, Catalina (Universidad de Concepción. Departamento de Botánica (Chile))
Bascuñán Godoy, Luisa (Universidad de Concepción. Departamento de Botánica (Chile))
Coba de la Peña, Teodoro (Centro de Estudios Avanzados en Zonas Áridas (Chile))
López Gómez, Miguel (Universidad de Granada. Departamento de Fisiología Vegetal)
Florez-Sarasa, Igor (Centre de Recerca en Agrigenòmica)
Fernández Del-Saz, Néstor (Universidad de Concepción. Departamento de Botánica (Chile))

Date:	2020
Abstract:	The interaction of the alternative oxidase (AOX) pathway with nutrient metabolism is important for understanding how respiration modulates ATP synthesis and carbon economy in plants under nutrient deficiency. Although AOX activity reduces the energy yield of respiration, this enzymatic activity is upregulated under stress conditions to maintain the functioning of primary metabolism. The in vivo metabolic regulation of AOX activity by phosphorus (P) and nitrogen (N) and during plant symbioses with Arbuscular mycorrhizal fungi (AMF) and Rhizobium bacteria is still not fully understood. We highlight several findings and open questions concerning the in vivo regulation of AOX activity and its impact on plant metabolism during P deficiency and symbiosis with AMF. We also highlight the need for the identification of which metabolic regulatory factors of AOX activity are related to N availability and nitrogen-fixing legume-rhizobia symbiosis in order to improve our understanding of N assimilation and biological nitrogen fixation.
Grants:	European Commission 753301
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Alternative oxidase ; Arbuscular mycorrhizal fungi ; Nitrogen and phosphorus nutrition ; Rhizobium ; Plant primary metabolism
Published in:	International journal of molecular sciences, Vol. 21, Issue 12 (June 2020) , art. 4201, ISSN 1422-0067

DOI: 10.3390/ijms21124201
PMID: 32545597

20 p, 1.5 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > CRAG (Centre for Research in Agricultural Genomics)
Articles > Research articles
Articles > Published articles