Deregulation of ζ-carotene desaturase in Arabidopsis and tomato exposes a unique carotenoid-derived redundant regulation of floral meristem identity and function

Ryan P. McQuinn; J. Leroux; J. Sierra; L. Escobar-Tovar; S. Frusciante; E.J. Finnegan; G. Diretto; G. Giuliano; J.J. Giovannoni; P. León; B.J. Pogson

doi:10.1111/tpj.16168

Deregulation of ζ-carotene desaturase in Arabidopsis and tomato exposes a unique carotenoid-derived redundant regulation of floral meristem identity and function

Ryan P. McQuinn, J. Leroux, J. Sierra, L. Escobar-Tovar, S. Frusciante, E.J. Finnegan, G. Diretto, G. Giuliano, J.J. Giovannoni, P. León, B.J. Pogson

Western Sydney University

Research output: Contribution to journal › Article › peer-review

Abstract

A level of redundancy and interplay among the transcriptional regulators of floral development safeguards a plant's reproductive success and ensures crop production. In the present study, an additional layer of complexity in the regulation of floral meristem (FM) identity and flower development is elucidated linking carotenoid biosynthesis and metabolism to the regulation of determinate flowering. The accumulation and subsequent cleavage of a diverse array of ζ-carotenes in the chloroplast biogenesis 5 (clb5) mutant of Arabidopsis results in the reprogramming of meristematic gene regulatory networks establishing FM identity mirroring that of the FM identity master regulator, APETALA1 (AP1). The immediate transition to floral development in clb5 requires long photoperiods in a GIGANTEA-independent manner, whereas AP1 is essential for the floral organ development of clb5. The elucidation of this link between carotenoid metabolism and floral development translates to tomato exposing a regulation of FM identity redundant to and initiated by AP1 and proposed to be dependent on the E class floral initiation and organ identity regulator, SEPALLATA3 (SEP3).

Original language	English
Pages (from-to)	783-804
Number of pages	22
Journal	Plant Journal
Volume	114
Issue number	4
DOIs	https://doi.org/10.1111/tpj.16168
Publication status	Published - May 2023

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© 2023 The Authors. The Plant Journal published by Society for Experimental Biology and John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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10.1111/tpj.16168

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McQuinn, R. P., Leroux, J., Sierra, J., Escobar-Tovar, L., Frusciante, S., Finnegan, E. J., Diretto, G., Giuliano, G., Giovannoni, J. J., León, P., & Pogson, B. J. (2023). Deregulation of ζ-carotene desaturase in Arabidopsis and tomato exposes a unique carotenoid-derived redundant regulation of floral meristem identity and function. Plant Journal, 114(4), 783-804. https://doi.org/10.1111/tpj.16168

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title = "Deregulation of ζ-carotene desaturase in Arabidopsis and tomato exposes a unique carotenoid-derived redundant regulation of floral meristem identity and function",

abstract = "A level of redundancy and interplay among the transcriptional regulators of floral development safeguards a plant's reproductive success and ensures crop production. In the present study, an additional layer of complexity in the regulation of floral meristem (FM) identity and flower development is elucidated linking carotenoid biosynthesis and metabolism to the regulation of determinate flowering. The accumulation and subsequent cleavage of a diverse array of ζ-carotenes in the chloroplast biogenesis 5 (clb5) mutant of Arabidopsis results in the reprogramming of meristematic gene regulatory networks establishing FM identity mirroring that of the FM identity master regulator, APETALA1 (AP1). The immediate transition to floral development in clb5 requires long photoperiods in a GIGANTEA-independent manner, whereas AP1 is essential for the floral organ development of clb5. The elucidation of this link between carotenoid metabolism and floral development translates to tomato exposing a regulation of FM identity redundant to and initiated by AP1 and proposed to be dependent on the E class floral initiation and organ identity regulator, SEPALLATA3 (SEP3).",

author = "McQuinn, {Ryan P.} and J. Leroux and J. Sierra and L. Escobar-Tovar and S. Frusciante and E.J. Finnegan and G. Diretto and G. Giuliano and J.J. Giovannoni and P. Le{\'o}n and B.J. Pogson",

year = "2023",

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doi = "10.1111/tpj.16168",

language = "English",

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pages = "783--804",

journal = "Plant Journal",

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McQuinn, RP, Leroux, J, Sierra, J, Escobar-Tovar, L, Frusciante, S, Finnegan, EJ, Diretto, G, Giuliano, G, Giovannoni, JJ, León, P & Pogson, BJ 2023, 'Deregulation of ζ-carotene desaturase in Arabidopsis and tomato exposes a unique carotenoid-derived redundant regulation of floral meristem identity and function', Plant Journal, vol. 114, no. 4, pp. 783-804. https://doi.org/10.1111/tpj.16168

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AU - McQuinn, Ryan P.

AU - Leroux, J.

AU - Sierra, J.

AU - Escobar-Tovar, L.

AU - Frusciante, S.

AU - Finnegan, E.J.

AU - Diretto, G.

AU - Giuliano, G.

AU - Giovannoni, J.J.

AU - León, P.

AU - Pogson, B.J.

PY - 2023/5

Y1 - 2023/5

N2 - A level of redundancy and interplay among the transcriptional regulators of floral development safeguards a plant's reproductive success and ensures crop production. In the present study, an additional layer of complexity in the regulation of floral meristem (FM) identity and flower development is elucidated linking carotenoid biosynthesis and metabolism to the regulation of determinate flowering. The accumulation and subsequent cleavage of a diverse array of ζ-carotenes in the chloroplast biogenesis 5 (clb5) mutant of Arabidopsis results in the reprogramming of meristematic gene regulatory networks establishing FM identity mirroring that of the FM identity master regulator, APETALA1 (AP1). The immediate transition to floral development in clb5 requires long photoperiods in a GIGANTEA-independent manner, whereas AP1 is essential for the floral organ development of clb5. The elucidation of this link between carotenoid metabolism and floral development translates to tomato exposing a regulation of FM identity redundant to and initiated by AP1 and proposed to be dependent on the E class floral initiation and organ identity regulator, SEPALLATA3 (SEP3).

AB - A level of redundancy and interplay among the transcriptional regulators of floral development safeguards a plant's reproductive success and ensures crop production. In the present study, an additional layer of complexity in the regulation of floral meristem (FM) identity and flower development is elucidated linking carotenoid biosynthesis and metabolism to the regulation of determinate flowering. The accumulation and subsequent cleavage of a diverse array of ζ-carotenes in the chloroplast biogenesis 5 (clb5) mutant of Arabidopsis results in the reprogramming of meristematic gene regulatory networks establishing FM identity mirroring that of the FM identity master regulator, APETALA1 (AP1). The immediate transition to floral development in clb5 requires long photoperiods in a GIGANTEA-independent manner, whereas AP1 is essential for the floral organ development of clb5. The elucidation of this link between carotenoid metabolism and floral development translates to tomato exposing a regulation of FM identity redundant to and initiated by AP1 and proposed to be dependent on the E class floral initiation and organ identity regulator, SEPALLATA3 (SEP3).

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DO - 10.1111/tpj.16168

M3 - Article

SN - 0960-7412

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SP - 783

EP - 804

JO - Plant Journal

JF - Plant Journal

IS - 4

ER -

Deregulation of ζ-carotene desaturase in Arabidopsis and tomato exposes a unique carotenoid-derived redundant regulation of floral meristem identity and function

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