Meitha, K, Agudelo-Romero, P, Signorelli, S et al. (4 more authors) (2018) Developmental control of hypoxia during bud burst in grapevine. Plant, Cell and Environment, 41 (5). pp. 1154-1170. ISSN 0140-7791
Abstract
Dormant or quiescent buds of woody perennials are often dense, and in the case of grapevine (Vitis vinifera L.) have a low tissue oxygen status. The precise timing of the decision to resume growth is difficult to predict, but once committed the increase in tissue oxygen status is rapid and developmentally regulated. Here we show that more than a third of the grapevine homologues of widely conserved hypoxia-responsive genes, and nearly a fifth of all grapevine genes possessing a plant hypoxia-responsive promoter element were differentially regulated during bud burst, in apparent harmony with resumption of meristem identity and cell-cycle gene regulation. We then investigated the molecular and biochemical properties of the grapevine ERF-VII homologues, which in other species are oxygen labile and function in transcriptional regulation of hypoxia-responsive genes. Each of the three VvERF-VIIs were substrates for oxygen-dependent proteolysis in vitro, as a function of the N-terminal cysteine. Collectively these data support an important developmental function of oxygen-dependent signalling in determining the timing and effective coordination bud burst in grapevine. In addition, novel regulators, including GASA-, TCP-, MYB3R-, PLT- and WUS-like transcription factors, were identified as hallmarks of the orderly and functional resumption of growth following quiescence in buds.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2018 John Wiley & Sons Ltd. This is the peer reviewed version of the following article: 'Meitha, K, Agudelo-Romero, P, Signorelli, S et al (2018). Developmental control of hypoxia during bud burst in grapevine. Plant, Cell and Environment,' which has been published in final form at [https://doi.org/10.1111/pce.13141]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. |
Keywords: | cell cycle; ethylene response factor; meristem; N-end rule proteolysis; quiescence; redox; transcriptome; woody perennial plant |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Biological Sciences (Leeds) > School of Biology (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 30 Jan 2018 15:46 |
Last Modified: | 15 Jan 2019 01:38 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1111/pce.13141 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:126775 |