Differences in respiration between dormant and non-dormant buds suggest the involvement of ABA in the development of endodormancy in grapevines

Parada, Francisco; Noriega, Ximena; Dantas, Débora; Bressan-Smith, Ricardo; Pérez, Francisco J.

doi:10.1016/j.jplph.2016.07.007

Cited by 38 publications

(32 citation statements)

References 37 publications

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“…The increase of ABA content and the transient plateau/peak is consistent with findings for poplar, which report an upregulation of critical enzymes (NCED3, ABA1, and ABA2) for ABA biosynthesis at 3 to 4 weeks of short days [9]. In grape [15], bud dormancy is also induced by the short day photoperiod and both the ABA content and the expression of ABA biosynthesis genes (VvNCED1 and VvNCED2) increased during the induction and maintenance of endodormancy. ABA inhibits respiration in non-dormant buds and down-regulates the expression of respiration-related genes such as VvaNAD, VvCYTC and VvCOX6, thus providing a molecular mechanism by which ABA induces bud endodormancy.…”

Section: Role Of Aba and Sugars During Dormancysupporting

confidence: 88%

Identification of Endodormancy Release for Cherries (Prunus Avium L.) by Abscisic Acid and Sugars

Fm¹,

Kp²,

Homann³

et al. 2017

J Hortic

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Section: Role Of Aba and Sugars During Dormancysupporting

confidence: 88%

Identification of Endodormancy Release for Cherries (Prunus Avium L.) by Abscisic Acid and Sugars

Fm¹,

Kp²,

Homann³

et al. 2017

J Hortic

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“…The experiment was performed 4 times using samples collected between late February and early June 2016 (southern hemisphere). The observed response was consistent, with the exception that the time to 50% bud burst decreased as the year progressed, as previously shown in other studies (Or et al , 2002; Parada et al , 2016). The data presented here represent the explants planted on the 2 nd May 2017.…”

Section: Methodssupporting

confidence: 92%

Physiological regulation of bud burst in grapevine

Signorelli

Shaw

Hermawaty

et al. 2018

Preprint

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Supplementary Movies: 1. 34 2 Word count: 7794 35 36 Highlights 37• The apoplastic pore size between the grapevine bud and the mother vine is 38 dynamically regulated in the transition to bud burst. 39• The molecular exclusion size of the apoplastic connection between the bud and cane 40 is calculated 2.1 nm prior to the initiation of bud burst. 41• The structural heterogeneity of the bud explains the spatial variance in tissue oxygen 42 status, and the meristematic core is oxygenated during the initiation of bud burst. 43• Long distance maternal signals are not a requirement for bud burst. 44 45Abstract 46 The physiological constraints on bud burst in woody perennials, including the prerequisite for 47 vascular development remain unresolved. Both light and tissue oxygen status have emerged 48 as important cues for vascular development in other systems, however, light requirement 49 appears to be facultative in grapevine, and the information related to the spatial variability of 50 oxygen in buds is unclear. Here, we analysed apoplastic development at early stages of 51 grapevine bud burst and combined molecular modelling with histochemical techniques to 52 determine the pore size of cell walls in grapevine buds. The data demonstrate that quiescent 53 grapevine buds were impermeable to apoplastic dyes (acid fuchsin and eosin Y) until after 54 bud burst was established. The molecular exclusion size was calculated to be 2.1 nm, which 55 would exclude most macromolecules except simple sugars and phytohormones. In vivo 56 experiments show that grapevine buds were able to resume growth even following excision 57 from the cane, and that the outer scales of grapevine buds may participate in the biochemical 58 repression of bud burst. Furthermore, we demonstrate that the tissue oxygen partial pressure 59 data correlated well with structural heterogeneity within the bud and differences in tissue 60 density. These data consolidate evidence that the meristematic core becomes rapidly 61 oxygenated during bud burst. Taken together, and when put in the context of earlier studies, 62 these data provide solid evidence that the physiological and biochemical events that initiate 63 bud burst reside within the bud, and question the role of long distance signalling in this 64 developmental transition. 65 66

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“…During winter, respiration converts stored NSC into energy. While respiration increases exponentially with temperature according to the Arrhenius law, its rate and slope decreases with the buds' depth of dormancy (Parada et al, 2016). Whether a similar respiration acclimation response during dormancy exists in other perennial organs, especially the roots, is still an open question that has implications for local NSC consumption (van der Schoot and Rinne, 2011;Keller, 2015).…”

Section: Effects Of Temperature On Winter and Spring Nsc Managementmentioning

confidence: 99%

Non-structural Carbohydrates in Dormant Woody Perennials; The Tale of Winter Survival and Spring Arrival

Tixier

Gambetta

Godfrey

et al. 2019

Front. For. Glob. Change

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Woody perennials' reliance on nonstructural carbohydrates (NSC) reserves for the resumption of spring growth necessitates an accumulation of NSC prior to dormancy. It is assumed that during dormancy temperature-regulated biological activities gauge the progression of winter and affect the metabolic rates and physiology of NSC reserves. Thus, changes in temperature signal the arrival of spring and determine the amount of reserves available for growth resumption. As woody perennials are dependent on dispersed storage of NSC during spring, they need an integrated remobilization and redistribution for synchronous and effective development of photosynthetic and reproductive organs. However, it is not known how storage compartments interact at the whole plant level, when NSC reserves are mobilized, or how local and distal storage compartments influence the biology of spring growth resumption. The goal of this mini-review is to shift the focus of winter biology from bud-centric to the whole plant. We discuss winter NSC management in the context of climate change with a special emphasis on how projected mild winters may affect the carbon budget, transport, and allocation during winter. We look at three aspects of NSC regulation underlying dormancy (I) the molecular regulation of dormancy (II) temperature dependent winter NSC metabolism, and (III) spring NSC remobilization and redistribution processes.

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Differences in respiration between dormant and non-dormant buds suggest the involvement of ABA in the development of endodormancy in grapevines

Cited by 38 publications

References 37 publications

Identification of Endodormancy Release for Cherries (Prunus Avium L.) by Abscisic Acid and Sugars

Identification of Endodormancy Release for Cherries (Prunus Avium L.) by Abscisic Acid and Sugars

Physiological regulation of bud burst in grapevine

Non-structural Carbohydrates in Dormant Woody Perennials; The Tale of Winter Survival and Spring Arrival

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