1‐methylcyclopropene extends<i>Cymbidium</i>orchid vaselife and prevents damaged pollinia from accelerating senescence

Heyes, J.A.; Johnston, Jason W.

doi:10.1080/01140671.1998.9514070

Cited by 29 publications

(12 citation statements)

References 17 publications

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“…In Cymbidium, ethylene caused purple discoloration of the rostellum and induced flower senescence. 1-MCP extended the vase life of Cymbidium flowers, both exposed to air and ethylene (Heyes and Johnston 1998). Similar results were also obtained in a study with Cattleya (Yamane et al 2004).…”

Section: Introductionsupporting

confidence: 85%

Effects of ethylene and 1-MCP (1-methylcyclopropene) on bud and flower drop in mini Phalaenopsis cultivars

et al. 2009

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Phalaenopsis frequently exhibits bud drop during production and in response to adverse postharvest conditions. The effect of exogenous ethylene on bud drop of mini Phalaenopsis was studied and ethylene sensitivity of four cultivars was compared. Water content, membrane permeability and ABA (abscisic acid) content in floral buds and flowers were determined after ethylene treatment. Exogenous ethylene induced flower bud drop in all testedPhalaenopsis cultivars and the different cultivars showed distinct differences in ethylene sensitivity. The cultivar Sogo 'Vivien' exhibited the highest bud drop, water loss and change in membrane permeability in floral petals, while Sogo 'Berry' showed the lowest sensitivity. The ethylene inhibitor 1-MCP (1-methylcyclopropene) reduced ethylene-induced floral bud drop in the cultivar Sogo 'Yenlin'. ABA content in floral buds was increased in response to ethylene and 1-MCP pretreatment inhibited the ethylene-induced increase in ABA levels efficiently. This finding suggests that the observed increase in ABA content during bud drop was mediated by ethylene. The interaction between ABA and ethylene is discussed.

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Section: Introductionsupporting

confidence: 85%

Effects of ethylene and 1-MCP (1-methylcyclopropene) on bud and flower drop in mini Phalaenopsis cultivars

et al. 2009

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“…However, in the absence of exogenous ethylene, there was no observable increase in vase life. Yet, 1-MCP effectively increased the life of cymbidium flowers for 15 days, even after three successive challenges with ethylene at 5-day intervals (Heyes and Johnston, 1998). It possible that orchid flowers develop new binding sites more slowly than pelargoniums and begonia.…”

Section: -Mcp Effecti6eness After Time and Temperature Treatmentsmentioning

confidence: 99%

“…1-MCP effectively blocked ethylene action in a range of plant systems, including abscission of phlox flowers (Porat et al, 1995), abscission of buds and flowers from potted flowering tuberous begonia and kalanchoe plants (Serek et al, 1994), senescence of Cybidium orchid flowers (Heyes and Johnston, 1998), and ripening of bananas (Golding et al, 1999) and apples (Fan and Mattheis, 1999).…”

Section: Introductionmentioning

confidence: 99%

1-MCP blocks ethylene-induced petal abscission of Pelargonium peltatum but the effect is transient

Cameron

Reid

2001

Postharvest Biology and Technology

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Continual exposure to 1.5 ml l − 1 ethylene caused 100% petal abscission within 2 h from detached flowers of Pelargonium peltatum (L.) 'Pink Blizzard' (ivy geranium) harvested just after the stigmatic lobes had separated. When flowering plants were first pretreated for 2 h with 1 ml l − 1 1-MCP, ethylene-induced petal abscission was completely inhibited. However, the effect was transient, since percent abscission increased with time after 1-MCP treatment. Based on percent abscission from detached flowers after a 2-h ethylene exposure, the half-life of 1-MCP activity was about 2, 3 and 6 days after 1-MCP treatment at 25, 20.7, and 12°C, respectively, and there was no evidence for a residual effect after 4 or 5 days at 25 and 20.7°C, respectively. A second application of 1-MCP renewed the inhibitory effect. Following 1-MCP treatment, the force required to separate petals from the flower declined linearly with time. The time until complete loss of the inhibitory effect was strongly temperature dependent, e.g. : 1 day at 25°C versus 3-4 days at 12°C. The usefulness of 1-MCP as a commercial treatment to prevent petal abscission from Pelargoniums will depend on shipping and storage temperature and application frequency.

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“…Além do STS, outras substâncias com habilidade de bloquear a ação do etileno estão sendo utilizadas na preservação de flores. Os inibidores da ação do etileno, 1metilciclopropeno (1-MCP) e norbordiene (NBD), estendem a vida de vaso de diversas flores de corte como Phlox paniculata (PORAT et al, 1995), orquídeas Cymbidium (HEYES & JOHNSTON, 1998), Petunia hybrida e Portulaca (ICHIMURA & SUTO, 1998). Essas substâncias são candidatas a substituir o STS no tratamento de flores de corte por serem menos tóxicas às plantas e ao ambiente, porém como somente são efetivas na forma gasosa, há necessidade de se implementar câmaras de acondicionamento especiais para o uso adequado.…”

Section: Etilenounclassified

Fisiologia pós-colheita de flores de corte.

Dias-Tagliacozzo¹,

Finger²,

Barbosa³

2005

RBHO

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RESUMOA longevidade das flores de corte está associada a fatores fisiológicos inerentes da espécie e a fatores do ambiente, como a temperatura, umidade, ação do etileno e a qualidade da água do vaso. O desequilíbrio entre a absorção de água pela haste e transpiração, causado pela obstrução física dos vasos xilemáticos, reduz a disponibilidade de água, ocorrendo murcha das pétalas e estímulo da produção de etileno. As flores têm diferentes graus de sensibilidade e produção de etileno, flores climatéricas apresentam elevada produção durante a senescência e aumento da sensibilidade ao etileno. Em algumas flores, geralmente aquelas com baixa produção e sensibilidade ao etileno, o fornecimento de carboidratos e a interação com ácido giberélico e citonininas exercem grande controle sobre a longevidade. O tratamento de "pulsing" com sacarose melhora a absorção de água pela haste cortada, estimula a abertura de flores ainda na forma de botão e fornece açúcares para a manutenção da respiração vital das flores. A utilização dos inibidores da ação do etileno 1-MCP e STS tem-se mostrado eficiente em inibir a produção autocatalítica de etileno e prolongar a vida de vaso de flores climatéricas e, em alguns casos, prolonga a longevidade de flores com baixa ou mesmo insensíveis ao etileno. A redução de temperatura prolonga o período de armazenamento e a vida de prateleira, porém em flores de origem tropical e subtropical, que são sensíveis à injúria por frio, manifestam danos em temperaturas de armazenamento inferiores a 10 a 13 o C, dependendo da espécie. Palavras-chave: Relações hídricas, 1-MCP, STS, sacarose. ABSTRACTPostharvest physiology of cut flowers. The longevity of the cut flowers are related to physiological characteristics from the species or to environmental factors, temperature, relative humidity action of ethylene and quality of the water in the vase. The disequilibrium between the water uptake and transpiration caused by xylem obstruction diminishes the availability of water, causing wilting and increasing the ethylene production. The flowers have different degrees of sensitivity to ethylene, in climacteric tropical flowers, a high production of ethylene and increase of sensitivity to ethylene during the senescence. In some flowers, generally with low production and sensitivity to ethylene, the supply of carbohydrates and the interaction with gibberellins and cytokinins have important influence on the longevity. Pulsing treatment with sucrose may improve the longevity of flowers, by favoring the bud opening and improving the vase life due to higher water uptake and by providing carbohydrates for the respiration. In flowers sensitive to ethylene, the deleterious effects of the ethylene can be blocked by the inhibitors 1-MCP or STS, shutdown the autocatalytic ethylene production and extending the vase life, as observed in climacteric flowers, but also may improve the vase life of flowers with low or insensitive to ethylene. The effect of cytokinins and gibberellins may improve the vase life of some flowers, but the...

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1‐methylcyclopropene extendsCymbidiumorchid vaselife and prevents damaged pollinia from accelerating senescence

Cited by 29 publications

References 17 publications

Effects of ethylene and 1-MCP (1-methylcyclopropene) on bud and flower drop in mini Phalaenopsis cultivars

Effects of ethylene and 1-MCP (1-methylcyclopropene) on bud and flower drop in mini Phalaenopsis cultivars

1-MCP blocks ethylene-induced petal abscission of Pelargonium peltatum but the effect is transient

Fisiologia pós-colheita de flores de corte.

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