Bud Respiration and Dormancy of Kiwifruit (Actinidia deliciosa)

McPherson, H. G.

doi:10.1006/anbo.1997.0455

Cited by 30 publications

(12 citation statements)

References 20 publications

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“…This appears to be the case in kiwifruit as Walton et al (1991) noted that sap flow in the canes commenced 8 weeks before budbreak and McPherson et al (1997) reported that bud respiration increased approximately 3–6 weeks before budbreak.…”

Section: Introductionmentioning

confidence: 88%

A rapid transcriptional activation is induced by the dormancy-breaking chemical hydrogen cyanamide in kiwifruit (Actinidia deliciosa) buds

Walton

Richardson

et al. 2009

Journal of Experimental Botany

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Budbreak in kiwifruit (Actinidia deliciosa) can be poor in locations that have warm winters with insufficient winter chilling. Kiwifruit vines are often treated with the dormancy-breaking chemical hydrogen cyanamide (HC) to increase and synchronize budbreak. This treatment also offers a tool to understand the processes involved in budbreak. A genomics approach is presented here to increase our understanding of budbreak in kiwifruit. Most genes identified following HC application appear to be associated with responses to stress, but a number of genes appear to be associated with the reactivation of growth. Three patterns of gene expression were identified: Profile 1, an HC-induced transient activation; Profile 2, an HC-induced transient activation followed by a growth-related activation; and Profile 3, HC- and growth-repressed. One group of genes that was rapidly up-regulated in response to HC was the glutathione S-transferase (GST) class of genes, which have been associated with stress and signalling. Previous budbreak studies, in three other species, also report up-regulated GST expression. Phylogenetic analysis of these GSTs showed that they clustered into two sub-clades, suggesting a strong correlation between their expression and budbreak across species.

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Section: Introductionmentioning

confidence: 88%

A rapid transcriptional activation is induced by the dormancy-breaking chemical hydrogen cyanamide in kiwifruit (Actinidia deliciosa) buds

Walton

Richardson

et al. 2009

Journal of Experimental Botany

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“…With the perception of increasing daily temperatures endodormant buds undergo a transition to ecodormancy. In the case of kiwifruit ( Actinidia deliciosa (Ade) ‘Hayward’), buds display an increase in sap flow and respiration three to eight weeks prior to budburst [6]. It is postulated that this transition from endodormancy to ecodormancy primes the plant for a rapid response upon perception of favourable growth conditions [7].…”

Section: Introductionmentioning

confidence: 99%

Actinidia DRM1 - An Intrinsically Disordered Protein Whose mRNA Expression Is Inversely Correlated with Spring Budbreak in Kiwifruit

Wood

Rae

et al. 2013

PLoS ONE

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Intrinsically disordered proteins (IDPs) are a relatively recently defined class of proteins which, under native conditions, lack a unique tertiary structure whilst maintaining essential biological functions. Functional classification of IDPs have implicated such proteins as being involved in various physiological processes including transcription and translation regulation, signal transduction and protein modification. Actinidia DRM1 (Ade DORMANCY ASSOCIATED GENE 1), represents a robust dormancy marker whose mRNA transcript expression exhibits a strong inverse correlation with the onset of growth following periods of physiological dormancy. Bioinformatic analyses suggest that DRM1 is plant specific and highly conserved at both the nucleotide and protein levels. It is predicted to be an intrinsically disordered protein with two distinct highly conserved domains. Several Actinidia DRM1 homologues, which align into two distinct Actinidia-specific families, Type I and Type II, have been identified. No candidates for the Arabidopsis DRM1-Homologue (AtDRM2) an additional family member, has been identified in Actinidia.

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“…This may result from the longer period taken from budbreak to flowering at the cooler sites (McPherson et al 1992). It is interesting to note that the fresh weight and dry weight of dormant buds at Riwaka is actually lower than at the warmer sites (McPherson et al 1997). The differences in ovary Kerikeri TP Hi TR TP Lo Riwaka fresh weight and dry weight between years varied from site to site.…”

Section: Regional and Seasonal Variationmentioning

confidence: 94%

Flower quality and fruit size in kiwifruit (Actinidia deliciosa)

McPherson

Richardson²,

Snelgar

et al. 2001

New Zealand Journal of Crop and Horticultural Science

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Kiwifruit (Actinidia deliciosa (A. Chev.) C.F. Liang et A.R, Ferguson 'Hayward') vines were grown at five sites that represented the climatic range of the major kiwifruit growing regions of New Zealand. Hydrogen cyanamide was applied to half the vines at three of the sites. Measurements of flower quality over two seasons were used to determine if this was linked to fruit weight at harvest. There was a progressive increase in ovary fresh weight and ovary dry weight from warmer to cooler sites. Hydrogen cyanamide increased ovary fresh weight by between 6 and 20% and fruit weight by up to 11%Corresponding author. H00010 Received 13 April 2000; accepted 30 March 2001at the two warmest sites. Variation in ovary fresh weight and dry weight accounted for some of the variation in fruit weight 170 days from flowering in the first season, but over both seasons, by itself, had no predictive value. The highest correlation between fruit weight and flower quality across both seasons was with the ratio of pedicel length to seed number (r 2 = 0.56). The relatively consistent relationships that have previously been found between crop load and average fruit weight and between flower quality and fruit weight at harvest did not apply over different seasons and regions.

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Bud Respiration and Dormancy of Kiwifruit (Actinidia deliciosa)

Cited by 30 publications

References 20 publications

A rapid transcriptional activation is induced by the dormancy-breaking chemical hydrogen cyanamide in kiwifruit (Actinidia deliciosa) buds

A rapid transcriptional activation is induced by the dormancy-breaking chemical hydrogen cyanamide in kiwifruit (Actinidia deliciosa) buds

Actinidia DRM1 - An Intrinsically Disordered Protein Whose mRNA Expression Is Inversely Correlated with Spring Budbreak in Kiwifruit

Flower quality and fruit size in kiwifruit (Actinidia deliciosa)

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