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Plant Cell & Environment
Article
License: CC BY
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Plant Cell & Environment
Article . 2018 . Peer-reviewed
License: Wiley Online Library User Agreement
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Developmental control of hypoxia during bud burst in grapevine

Authors: Karlia Meitha; Patricia Agudelo‐Romero; Santiago Signorelli; Daniel J. Gibbs; John A. Considine; Christine H. Foyer; Michael J. Considine;

Developmental control of hypoxia during bud burst in grapevine

Abstract

AbstractDormant 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 3 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.

Country
United Kingdom
Keywords

Meristem, Gene Expression Regulation, Developmental, Plant Dormancy, meristem, Oxygen, redox, woody perennial plant, cell cycle, quiescence, Vitis, ethylene response factor, N-end rule proteolysis, Promoter Regions, Genetic, transcriptome, Plant Proteins, Transcription Factors

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    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
51
Top 10%
Top 10%
Top 10%
Green
hybrid