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EnglishFruits result from complex biological processes that begin soon after fertilization. Among these processes are cell division and expansion, accumulation of secondary metabolites and increase in carbohydrate biosynthesis. Later fruit ripening is accomplished by chlorophyll degradation and cell wall lysis. Fruit maturation is an essential step to optimise seed dispersal, and is controlled by a complex network of transcription factors and genetic regulators that are strongly influenced by phytohormones. Abscisic acid (ABA) and ethylene are the major regulators of ripening and senescence both in dry and fleshy fruits, as demonstrated by numerous ripening defective mutants, effects of exogenous hormone application and transcriptome analyses. While ethylene is the best characterised player in the final step of a fruit's life, ABA also has a key regulatory role, promoting ethylene production and acting as a stress-related hormone in response to drought and pathogen attack. In this review, we illustrate and clarify the role of ABA and ethylene in relation to the interconnected biotic and abiotic phenomena that affect ripening and senescence. We integrate and discuss the most recent data available regarding these biological processes, which are crucial for post-harvest fruit conservation and for food safety.
Fruit ripening: the role of hormones, cell wall modifications and their intersection with pathogens / S. Forlani, S. Masiero, C. Mizzotti. - In: JOURNAL OF EXPERIMENTAL BOTANY. - ISSN 0022-0957. - 70:11(2019 May 15), pp. 2993-3006.
| Titolo: | Fruit ripening: the role of hormones, cell wall modifications and their intersection with pathogens | |
| Autori: | FORLANI, SARA (Primo) MASIERO, SIMONA (Secondo) MIZZOTTI, CHIARA (Ultimo) (Corresponding) | |
| Parole Chiave: | ripening; senescence; hormones; pathogens; cell wall; dry fruit; fleshy fruit; climacteric fruit; non-climacteric fruit | |
| Settore Scientifico Disciplinare: | Settore BIO/01 - Botanica Generale Settore BIO/04 - Fisiologia Vegetale | |
| Progetto: | Investigating Self Incompatibility DEterminants in fruit trees (ISIDE) | |
| Data di pubblicazione: | 15-mag-2019 | |
| Rivista: | ||
| Tipologia: | Article (author) | |
| Data ahead of print / Data di stampa: | 11-mar-2019 | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1093/jxb/erz112 | |
| Appare nelle tipologie: | 01 - Articolo su periodico |
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