Combination pulse treatment of 1-naphthaleneacetic acid and aminoethoxyvinylglycine greatly improves postharvest life in cut Eustoma flowers

Shimizu-Yumoto, Hiroko; Ichimura, Kazuo

doi:10.1016/j.postharvbio.2009.10.001

Cited by 28 publications

(14 citation statements)

References 26 publications

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“…The CEPA concentration (125 mM) was chosen as 50 mM had no effect on floral longevity, and both 250 mM and 500 mM elicited a very rapid progression from Stage 1 to Stage 4, indicating toxic effects (Additional file 1 : Figure S3). The NAA concentration range was based on Shimizu-Yumoto and Ichimura (2010) [ 49 ] who used 5 μM NAA in Eustoma flowers. For all other treatments the concentration selected was the lowest concentration to affect progression of petal senescence for each chemical without damaging the petals (data not shown as there was no effect).…”

Section: Methodsmentioning

confidence: 99%

Interaction of plant growth regulators and reactive oxygen species to regulate petal senescence in wallflowers (Erysimum linifolium)

et al. 2016

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BackgroundIn many species floral senescence is coordinated by ethylene. Endogenous levels rise, and exogenous application accelerates senescence. Furthermore, floral senescence is often associated with increased reactive oxygen species, and is delayed by exogenously applied cytokinin. However, how these processes are linked remains largely unresolved. Erysimum linifolium (wallflower) provides an excellent model for understanding these interactions due to its easily staged flowers and close taxonomic relationship to Arabidopsis. This has facilitated microarray analysis of gene expression during petal senescence and provided gene markers for following the effects of treatments on different regulatory pathways.ResultsIn detached Erysimum linifolium (wallflower) flowers ethylene production peaks in open flowers. Furthermore senescence is delayed by treatments with the ethylene signalling inhibitor silver thiosulphate, and accelerated with ethylene released by 2-chloroethylphosphonic acid. Both treatments with exogenous cytokinin, or 6-methyl purine (which is an inhibitor of cytokinin oxidase), delay petal senescence. However, treatment with cytokinin also increases ethylene biosynthesis. Despite the similar effects on senescence, transcript abundance of gene markers is affected differentially by the treatments. A significant rise in transcript abundance of WLS73 (a putative aminocyclopropanecarboxylate oxidase) was abolished by cytokinin or 6-methyl purine treatments. In contrast, WFSAG12 transcript (a senescence marker) continued to accumulate significantly, albeit at a reduced rate. Silver thiosulphate suppressed the increase in transcript abundance both of WFSAG12 and WLS73. Activity of reactive oxygen species scavenging enzymes changed during senescence. Treatments that increased cytokinin levels, or inhibited ethylene action, reduced accumulation of hydrogen peroxide. Furthermore, although auxin levels rose with senescence, treatments that delayed early senescence did not affect transcript abundance of WPS46, an auxin-induced gene.ConclusionsA model for the interaction between cytokinins, ethylene, reactive oxygen species and auxin in the regulation of floral senescence in wallflowers is proposed. The combined increase in ethylene and reduction in cytokinin triggers the initiation of senescence and these two plant growth regulators directly or indirectly result in increased reactive oxygen species levels. A fall in conjugated auxin and/or the total auxin pool eventually triggers abscission.Electronic supplementary materialThe online version of this article (doi:10.1186/s12870-016-0766-8) contains supplementary material, which is available to authorized users.

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Section: Methodsmentioning

confidence: 99%

Interaction of plant growth regulators and reactive oxygen species to regulate petal senescence in wallflowers (Erysimum linifolium)

et al. 2016

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“…Additionally, recent studies on some cut flowers demonstrated that, with decrease in the freshness of cuts, some bacteria aggregate in the vase solution and lead to senescence of cut flowers (Macnish et al 2008). By using some acids as antibacterial compounds, the frequency of bacteria in the vase solution can be decreased and the vase life of various cut flowers significantly increased, which is supposedly due to the reduction in vascular blockage (Alaey et al 2011;Shimizu-Yumoto & Ichimura 2010;Mansouri 2012).…”

Section: Introductionmentioning

confidence: 99%

Influence of Citric Acid and Hydrogen Peroxide on Postharvest Quality of Tuberose (Polianthes tuberosa L. ‘Pearl’) Cut Flowers

Rahimian-Boogar¹,

Salehi

Mir

2016

Journal of Horticultural Research

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Quality of cut flowers is an important issue at postharvest as well as an important factor contributing to marketing of and profitability from the tuberose. In this study, the effects of citric acid (CA) and hydrogen peroxide (H2O2) added to the vase water on postharvest quality of tuberose cut flowers were investigated. CA was applied in concentrations of 50, 100, 200, 400 mg·dm−3 and H2O2 in concentrations of 10, 20, 40 and 80 mg·dm−3 and distilled water as control treatment. Results showed that both compounds had significant positive effects on solution uptake, wilting and abscission of florets, relative water content, chlorophyll content, and vase life duration. The effects of 100 and 200 mg·dm−3 of CA and 20 and 40 mg·dm−3 of H2O2 proved to be more effective than other treatments. Both compounds increased the vase life of tuberose cut flowers and CA at concentrations 100 and 200 mg dm−3 and H2O2 at concentrations 20 and 40 mg dm−3 doubled this time up to 14-17 days.

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“…Although evidences of melatonin's beneficial effects on plants are widespread, little information is found on fresh-cut flowers. AVG is a well-known inhibitor of ethylene biosynthesis and routinely applied to preserve fruits freshness [23,24,25]. Compared with 1-MCP, water-soluble AVG is easily measured and can generate more consistent and reliable effects than gaseous applications of 1-MCP.…”

Section: The Effects Of Preharvest Led Light Melatonin and Avg Treatmentioning

confidence: 99%

“…Although the application of AVG alone did not generate significant beneficial effects on snapdragon vase life, combinations of AVG and other plant hormones may have different effects. Shimizu-Yumoto and Ichimura observed that fresh-cut Eustoma flowers pulse-treated with AVG in combination with 1-naphthaleneacetic acid (NAA) significantly extend vase life up to three times more than the control [43]. Therefore, AVG might have a significant impact on snapdragons vase life if used properly.…”

Section: Melatonin and Avg Effects On Snapdragonsmentioning

confidence: 99%

The effects of preharvest LED light, melatonin and AVG treatments on the quality of postharvest snapdragon and vase life

Xiang

Nguyen

Felter

et al. 2020

JFCLS

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Snapdragon (Antirrhinum majus) is one of top ten fresh-cut flowers in the United States; however, its short vase life limits its marketability. The purposes of this study were to test the effects of LED light, exogenous melatonin and one ethylene production inhibitor, AVG, on the quality of pre-harvest snapdragon and the prolongation of vase life after post-harvesting. Our results showed that snapdragon treated with 10 h white light followed by 6 h blue light (WB) inhibited stem elongation and lengths of the inflorescences, reduced the number of florets and vase life. On the contrary, snapdragon treated with 10 h white light, 3 h red light, 3 h blue light (WRB) significantly promoted stem elongation, lengths of the inflorescences, and increased the size and number of florets. The lengths of stems and inflorescences increased significantly in all melatonin treatments while quantity and size of florets only increased with 200 µmol·L-1 melatonin application. Noticeably, vase life was significantly extended with 200 µmol·L-1 melatonin application and shortened with WB treatment. In contrast to melatonin, all AVG treatments resulted in decreases of the floret size; and changes in stem elongation and inflorescence length were only observed in the treatment with 100 µmol·L-1AVG. These results showed that pre-harvest treatment with WBR and melatonin can effectively improve the post-harvest quality of snapdragon flowers and 200 µmol·L-1 of melatonin extended their vase life.

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Combination pulse treatment of 1-naphthaleneacetic acid and aminoethoxyvinylglycine greatly improves postharvest life in cut Eustoma flowers

Cited by 28 publications

References 26 publications

Interaction of plant growth regulators and reactive oxygen species to regulate petal senescence in wallflowers (Erysimum linifolium)

Interaction of plant growth regulators and reactive oxygen species to regulate petal senescence in wallflowers (Erysimum linifolium)

Influence of Citric Acid and Hydrogen Peroxide on Postharvest Quality of Tuberose (Polianthes tuberosa L. ‘Pearl’) Cut Flowers

The effects of preharvest LED light, melatonin and AVG treatments on the quality of postharvest snapdragon and vase life

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