Synergistic Effect of Nano-Sliver with Sucrose on Extending Vase Life of the Carnation cv. Edun

Park, Da Y.; Naing, Aung Htay; Ai, Trinh Ngoc; Han, Jeung-Sul; Kang, In‐Kyu; Kim, Chang K.

doi:10.3389/fpls.2017.01601

Cited by 29 publications

(20 citation statements)

References 42 publications

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“…[ 14 ]. Recently, NS has also been used for extending the postharvest longevity of cut flowers via inhibition of bacteria and ethylene biosynthesis [ 15 , 16 ]. Compared to synthetic fungicides, NS and SA are used for relatively safe evaluation of various plant pathogens [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Regulation of Botrytis cinerea Infection and Gene Expression in Cut Roses by Using Nano Silver and Salicylic Acid

Kim

Jeon

et al. 2021

Plants

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Botrytis cinerea (B. cinerea) is one of the necrotrophic pathogens resulting in the heaviest commercial losses in cut rose flowers, and the severity of gray mold disease partly depends on the presence of ethylene during the storage and transport. The effectiveness of nano silver (NS) and salicylic acid (SA) was assessed as a novel control agent in protecting the cut rose flowers against B. cinerea infection and ethylene damages. The efficacy of NS and SA was compared with an inoculated control (CON). A non-treated control (NT) was also used to evaluate the natural infection process. The results indicated that pretreatment with 20 mg L−1 NS significantly reduced B. cinerea growth in rose petals during vase periods. NS effectively suppressed the mRNA levels of ethylene biosynthesis genes (RhACS2, RhACS4, and RhACO1) and the reduction in expression levels of ethylene receptor genes (RhETR1, RhETR2, and RhETR5) and the downstream regulator RhCTR2 in rose petals after B. cinerea inoculation. NS application also decreased the expression of the B. cinerea snod-prot-like 1 (Bcspl1) gene which acts as the virulence factor in cut roses. In NS flowers, the maximum quantum yield of PSII (Fv/Fm) value was higher and the leaf temperature was lower on day 1, suggesting that these factors can be used for detecting B. cinerea infection and water stress in cut rose flowers. Furthermore, NS improved water relations and extended the vase life of cut rose flowers by 3.3 d, compared with that of NT flowers. In contrast, SA had no inhibitive effects on both B. cinerea growth and ethylene response in cut roses. The findings from the present study highlight NS as a promising new candidate for preventing B. cinerea infection and ethylene damages and for improving the postharvest quality of cut roses exported overseas.

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Section: Introductionmentioning

confidence: 99%

Regulation of Botrytis cinerea Infection and Gene Expression in Cut Roses by Using Nano Silver and Salicylic Acid

Kim

Jeon

et al. 2021

Plants

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“…The mechanism of action of silver in nanoparticles is not completely understood and only partial explanations of its mode of action in cut flowers have been published 17,18 . There are numerous reports that it prolongs the flower vase life 7,[14][15][16][17][18] . Here, in cosmos, it also increased flower longevity, by as much as 50% relative to water, but its effect was not statistically different from that of the 8-HQC.…”

Section: Discussionmentioning

confidence: 99%

“…The nature of blockages in cosmos stems was not studied; however, bacteria are the most common cause of obstruction in water uptake by cut flowers 4 . It appears plausible that NS limits bacteria growth in xylem 7,17,18 . Unfortunately, a reduction in stem blockages did not translate in this case into improved flower longevity.…”

Section: Discussionmentioning

confidence: 99%

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Nanosilver as a novel biocide for control of senescence in garden cosmos

Skutnik

Jędrzejuk

Rabiza-Świder

et al. 2020

Sci Rep

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To prolong their vase life, cut flowers are commonly kept in holding solutions. These must include a biocide to retard bacterial growth. In this study, the effect of nanosilver (NS) on certain aspects of senescence in cut garden cosmos (Cosmos bipinnatus) flowers was compared to that of the commonly used 8-hydroxyquinoline citrate (8-HQC). In combination with sucrose, both biocides prolonged cosmos vase life but did not prevent the occurrence of stem blockages. NS was more effective in limiting a reduction in endogenous soluble carbohydrates. The malondialdehyde (MDA) contents increased in senescing ray florets, both in intact and control cut flowers held in water. Both biocides were comparably effective in limiting this effect. The hydrogen peroxide content tripled in intact flowers but dropped in flowers held in water or the 8-HQC solutions; in flowers kept in NS solutions its increase was moderate. Also, the catalase activity increased in intact flowers but dropped in all cut flowers. Both biocides had similar effects on the enzyme activity, in both pure solutions and with sucrose. Most of these parameters were not significantly correlated with vase life. Overall, the effect of nanosilver on senescence in cut cosmos flowers was similar to that of 8-HQC. Growing consumer interest in new cut flower species drives field production of seasonal, locally grown flowers 1. Garden cosmos-also known as lace cosmos because of its delicate pinnate foliage-is gaining popularity not only as a garden or a bedding plant but also as cut flowers. Diversity of forms and colors make the species popular among florists and customers but its postharvest longevity is short, usually 4-6 days 1. However, this longevity can be doubled by making use of the so-called flower food, i.e. holding solutions containing a biocide and a sugar 2. These two components are crucial in extending the vase life as they delay flower senescence. Senescence usually occurs faster in cut flowers than in those left on mother plants. This was clearly illustrated by de Stigter 3 on cut and intact hydroponically grown 'Sonia' roses observed under the same environmental conditions and confirmed by subsequent studies on rose 4 , lilac 5 , clematis 6 and peony 7. The processes of senescence are accelerated mainly by water stress caused by improper water balance in cut stems. Such stems, even when held in water, are unable to absorb sufficient amounts of water to compensate for the transpiration losses. Vessels in cut stems become obstructed by blockages of various nature, with the presence of microbes in vase water being the most common 8. For this reason, biocides in holding solutions are crucial for the postharvest longevity of cut flowers. For over a half a century the esters of 8-hydroxyquinoline have been used as potent biocides, in mixtures with sucrose. This is called the standard preservative 9. Nanosilver [NS] has emerged as a new biocide for cut flowers after the use of toxic silver nitrate had been outlawed 10. Though it was enthusiastically accepted in ...

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“…Silver nanoparticles (AgNPs) are widely studied nanomaterials, which fascinate researchers because of their unique optical, catalytic, antimicrobial and sensing properties (Sharma et al 2014). Several authors reported an extension in vase life of cut carnations (Naing et al 2017;Park et al 2017;Liu et al 2018) and other cut flowers (Kim et al 2005;Li et al 2017) because of the application of AgNPs. However, AgNP treatments were suggested as a biocide rather than an ethylene inhibitor.…”

Section: Introductionmentioning

confidence: 99%

Involvement of Ethylene Synthetic Inhibitors in Regulating the Senescence of Cut Carnations through Membrane Integrity Maintenance

Hassan

Ali

Mazrou

2020

Journal of Horticultural Research

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Postharvest senescence is a critical problem of carnation cut flowers, limiting their transportation and subsequent marketing chain. This study was designed to assess whether the application of 1-methylcyclopropene (1-MCP), silver nanoparticles (AgNPs), and nitric oxide (NO) released from donor sodium nitroprusside (SNP) could prolong the vase life of cut carnations through an influence on the physiological and biochemical mechanisms involved in aging process. 1-MCP was used in the concentrations of 0, 100, 200, and 300 mg·m−3; AgNPs in the concentrations of 0, 50, 100, and 150 mg·dm−3; and SNP in the concentrations of 0, 0.1, 0.2, 0.3, and 0.4 mM. All treatments significantly extended the cut flower life compared with untreated flowers, more so with 300 mg·m−3 of 1-MCP, 100 mg·dm−3 of AgNPs, or 0.3 mM of SNP. All these chemical compounds were able to considerably improve the relative water content (RWC), reduce the malondialdehyde (MDA) content and increase the membrane stability index (MSI) in petals and, therefore, maintain the membrane integrity. In addition, they decreased the activities of acetyl-CoA synthetase (ACS) and nitric oxide synthase (NOS) and, hence, depressed the production of ethylene in carnation cut flowers through downregulating the ethylene production, what prolonged the vase life. Altogether, the application of exogenous 1-MCP, AgNPs, or SNP may provide a promising avenue to improve the postharvest performance of carnation cut flowers.

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Synergistic Effect of Nano-Sliver with Sucrose on Extending Vase Life of the Carnation cv. Edun

Cited by 29 publications

References 42 publications

Regulation of Botrytis cinerea Infection and Gene Expression in Cut Roses by Using Nano Silver and Salicylic Acid

Regulation of Botrytis cinerea Infection and Gene Expression in Cut Roses by Using Nano Silver and Salicylic Acid

Nanosilver as a novel biocide for control of senescence in garden cosmos

Involvement of Ethylene Synthetic Inhibitors in Regulating the Senescence of Cut Carnations through Membrane Integrity Maintenance

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