The Influence of Substances Related to Ethylene Biosynthesis on Breaiking Bud Dormancy in Grapevines.

Tohbe, Mitsunobu; Mochioka, Ryosuke; Horiuchi, Shosaku; Ogata, Takanari; Shiozaki, Shuji; Kurooka, Hiroshi

doi:10.2503/jjshs.67.902

Cited by 11 publications

(8 citation statements)

References 10 publications

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“…Past as well as recent studies have also shown that HCN may activate the flower bud and the flower opening in Lemna paucicostata and grapevine (Tanaka et al, 1983; Tohbe et al, 1998). …”

Section: Resultsmentioning

confidence: 91%

“…As previously mentioned, HCN may be produced and metabolized during flower bud development, indicated by a decrease in CNglc levels. Past as well as recent studies have also shown that HCN may activate the flower bud and the flower opening in Lemna paucicostata and grapevine ( Tanaka et al, 1983 ; Tohbe et al, 1998 ).…”

Section: Resultsmentioning

confidence: 91%

“…Hydrogen cyanide has been implicated in seed germination ( Zagórski and Lewak, 1983 ; Bogatek et al, 1991 ; Bethke et al, 2006 ; Oracz et al, 2009 ) and bud dormancy release ( Tohbe et al, 1998 ). Hydrogen cyanide release has been measured in different reproductive tissues of Eucalyptus cladocalyx (F. Muell).…”

Section: Introductionmentioning

confidence: 99%

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Cyanogenic Glucosides and Derivatives in Almond and Sweet Cherry Flower Buds from Dormancy to Flowering

et al. 2017

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Almond and sweet cherry are two economically important species of the Prunus genus. They both produce the cyanogenic glucosides prunasin and amygdalin. As part of a two-component defense system, prunasin and amygdalin release toxic hydrogen cyanide upon cell disruption. In this study, we investigated the potential role within prunasin and amygdalin and some of its derivatives in endodormancy release of these two Prunus species. The content of prunasin and of endogenous prunasin turnover products in the course of flower development was examined in five almond cultivars – differing from very early to extra-late in flowering time – and in one sweet early cherry cultivar. In all cultivars, prunasin began to accumulate in the flower buds shortly after dormancy release and the levels dropped again just before flowering time. In almond and sweet cherry, the turnover of prunasin coincided with increased levels of prunasin amide whereas prunasin anitrile pentoside and β-D-glucose-1-benzoate were abundant in almond and cherry flower buds at certain developmental stages. These findings indicate a role for the turnover of cyanogenic glucosides in controlling flower development in Prunus species.

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“…Past as well as recent studies have also shown that HCN may activate the flower bud and the flower opening in Lemna paucicostata and grapevine (Tanaka et al, 1983; Tohbe et al, 1998). …”

Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 91%

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Cyanogenic Glucosides and Derivatives in Almond and Sweet Cherry Flower Buds from Dormancy to Flowering

et al. 2017

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“…Exposure of developing microtubers to the nonspecific ethylene biosynthesis inhibitor AgNO 3 or to the competitive ethylene antagonist 2,5-norbornadiene (NBD) resulted in a dose-dependent increase in premature sprouting, which indicates that ethylene is essential for dormancy (Suttle, 1998). However, similar studies on grape buds have shown that that ethylene itself has little or no direct effect on breaking bud dormancy (Tohbe et al, 1998).…”

Section: Ethylenementioning

confidence: 95%

Hormonal Control of Dormancy

Michalczuk

2005

International Journal of Fruit Science

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“…However, cyanamides are toxic to humans and accidents can occur when handling them during application (Inamdar et al, 2015). When looking for alternatives to cyanamides, Tohbe et al (1998) showed that aminocyclopropane carboxylic acid (ACC) helped to induce bud break in grapevine. ACC is the precursor of ethylene in plants, and its conversion to ethylene is known to be associated with the production of hydrogen cyanamide (Lin et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Ethanol sprays to release grapevine bud dormancy: a potential alternative to cyanamides

Chervin

Fennell

2019

OENO One

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Aim: Grape growers sometimes use cyanamides (calcium or hydrogen) to release bud dormancy in warm climate regions, where the chilling requirement has not been met during winter. However, these products can cause damage to plants and are dangerous to handle, so alternatives would be welcomed by growers. Connections between metabolisms of ethanol, ethylene and cyanide revealed by previous studies led us to test the potential of ethanol sprays on bud break and early shoot growth.Methods and results: Trials were performed over three years on Vitis vinifera grapevines trained in Guyot or cordon, and on cuttings in growth chambers. Cultivars used in the studies included Cabernet-Sauvignon, Syrah and Ugni blanc. The results show that ethanol can advance bud break of all three cultivars at concentrations ranging from 2.5 to 10 % ethanol in water. Ethanol stimulates bud development in both Guyot and cordon training systems. However, the timing of ethanol application is crucial, and late spring season applications reduce the effectiveness of the treatment.Conclusions: Observations were performed over three different seasons. The trials revealed that ethanol sprays can advance bud break of different Vitis vinifera vines, trained with cane or spur systems.Significance and impact of the study: Climate change impacts dormancy release, making it an increasingly important issue over the next few decades. An alternative to the dangerous use of cyanamides to promote bud break would greatly help growers. These preliminary results with ethanol are promising but should lead to trials in various growing areas and with various cultivars in order to confirm their potential for viticulture.

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The Influence of Substances Related to Ethylene Biosynthesis on Breaiking Bud Dormancy in Grapevines.

Cited by 11 publications

References 10 publications

Cyanogenic Glucosides and Derivatives in Almond and Sweet Cherry Flower Buds from Dormancy to Flowering

Cyanogenic Glucosides and Derivatives in Almond and Sweet Cherry Flower Buds from Dormancy to Flowering

Hormonal Control of Dormancy

Ethanol sprays to release grapevine bud dormancy: a potential alternative to cyanamides

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