GENOMES UNCOUPLED1-independent retrograde signaling targets the ethylene pathway to repress photomorphogenesis
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Autor/a
Gommers, Charlotte M. M.
Ruiz-Sola, María Águila
Ayats, Alba
Pereira, Lara
Pujol, Marta
Monte, Elena
Fecha de publicación
2020-11-19ISSN
0032-0889
Resumen
When germinating in the light, Arabidopsis (Arabidopsis thaliana) seedlings undergo photomorphogenic development, characterized by short hypocotyls, greening, and expanded cotyledons. Stressed chloroplasts emit retrograde signals to the nucleus that induce developmental responses and repress photomorphogenesis. The nuclear targets of these retrograde signals are not yet fully known. Here, we show that lincomycin-treated seedlings (which lack developed chloroplasts) show strong phenotypic similarities to seedlings treated with ethylene (ET) precursor 1-aminocyclopropane-1-carboxylic acid, as
both signals inhibit cotyledon separation in the light. We show that the lincomycin-induced phenotype partly requires a functioning ET signaling pathway, but could not detect increased ET emissions in response to the lincomycin treatment.
The two treatments show overlap in upregulated gene transcripts, downstream of transcription factors ETHYLENE INSENSITIVE3 and EIN3-LIKE1. The induction of the ET signaling pathway is triggered by an unknown retrograde signal acting independently of GENOMES UNCOUPLED1. Our data show how two apparently different stress responses converge to optimize photomorphogenesis.
Tipo de documento
Artículo
Versión del documento
Versión aceptada
Lengua
Inglés
Materias (CDU)
633 - Cultivos y producciones
Páginas
1
Publicado por
American Society of Plant Biologists
Publicado en
Plant Physiology
Citación
Gommers, Charlotte M. M., María Águila Ruiz-Sola, Alba Ayats, Lara Pereira, Marta Pujol, and Elena Monte. 2020. "GENOMES UNCOUPLED1-Independent Retrograde Signaling Targets The Ethylene Pathway To Repress Photomorphogenesis". Plant Physiology. American Society of Plant Biologists. doi:10.1093/plphys/kiaa015.
Número del acuerdo de la subvención
MINECO-FEDER/Programa Estatal de fomento de la investigación científica y técnica de excelencia/BIO2015-68460-P/ES/COMUNICACION INTERORGANELO EN LA REGULACION POR LUZ DEL DESARROLLO DE LAS PLANTAS/
MICIU-FEDER/Programa Estatal de generación del conocimiento y fortalecimiento científico y tecnológico del sistema I+D+I/PGC2018-099987-B-I00/ES/LA SEÑALIZACION RETROGRADA EN FOTOPROTECCION/
MINECO/Programa Estatal de promoción del talento y su empleabilidad en I+D+I/FJCI-2016-30876/ES/ /
MINECO/Programa Estatal de fomento de la investigación científica y técnica de excelencia/SEV-2015-0533/ES/ /
Program
Genòmica i Biotecnologia
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