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The chimeric repressor version of an Ethylene Response Factor (ERF) family member, Sl-ERF.B3, shows contrasting effects on tomato fruit ripening.

TitoloThe chimeric repressor version of an Ethylene Response Factor (ERF) family member, Sl-ERF.B3, shows contrasting effects on tomato fruit ripening.
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2014
AutoriLiu, Mingchun, Diretto Gianfranco, Pirrello Julien, Roustan Jean-Paul, Li Zhengguo, Giuliano Giovanni, Regad Farid, and Bouzayen Mondher
RivistaThe New phytologist
Volume203
Paginazione206-18
Data di pubblicazione2014 Jul
ISSN1469-8137
Parole chiavebeta carotene, Carotenoid, Carotenoids, Ethylene, ethylene derivative, Ethylenes, fruit, functional role, Gene expression, gene expression profiling, gene expression regulation, Genetically Modified, genetics, lycopene, Lycopersicon esculentum, maturation, metabolism, Phenotype, physiology, Plant, Plant Proteins, Plants, pleiotropy, repressor protein, Repressor Proteins, ripening, Tomato, transcription factor, Transcription Factors, transgenic plant, vegetable protein
Abstract

Fruit ripening involves a complex interplay between ethylene and ripening-associated transcriptional regulators. Ethylene Response Factors (ERFs) are downstream components of ethylene signaling, known to regulate the expression of ethylene-responsive genes. Although fruit ripening is an ethylene-regulated process, the role of ERFs remains poorly understood. The role of Sl-ERF.B3 in tomato (Solanum lycopersicum) fruit maturation and ripening is addressed here using a chimeric dominant repressor version (ERF.B3-SRDX). Over-expression of ERF.B3-SRDX results in a dramatic delay of the onset of ripening, enhanced climacteric ethylene production and fruit softening, and reduced pigment accumulation. Consistently, genes involved in ethylene biosynthesis and in softening are up-regulated and those of carotenoid biosynthesis are down-regulated. Moreover, the expression of ripening regulators, such as RIN, NOR, CNR and HB-1, is stimulated in ERF.B3-SRDX dominant repressor fruits and the expression pattern of a number of ERFs is severely altered. The data suggest the existence of a complex network enabling interconnection between ERF genes which may account for the pleiotropic alterations in fruit maturation and ripening. Overall, the study sheds new light on the role of Sl-ERF.B3 in the transcriptional network controlling the ripening process and uncovers a means towards uncoupling some of the main ripening-associated processes.

Note

cited By 43

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84901633834&doi=10.1111%2fnph.12771&partnerID=40&md5=ceb9906b42514065e8f33e9cf84d880d
DOI10.1111/nph.12771
Citation Key4715