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

Sun, Yujie; Christensen, B.; Liu, Fulai; Wang, Huiqun; Müller, Renate

doi:10.1007/s10725-009-9391-y

Cited by 26 publications

(12 citation statements)

References 21 publications

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“…This therefore suggests that early senescence and wilting is correlated to level of ethylene sensitivity. The results of ethylene sensitivity are in agreement with studies carried out on Dendrobium 'Khao Sanan' (Lerslerwong and Ketsa, 2008), mini Phalaenopsis (Sun et al, 2009), Oncidium 'Gower Ramsey' (Huang and Paull, 2009) and cut roses (Chamani et al, 2005). The weight losses in the cut orchids such as D. 'Darren Glory' and D. 'Shavin White' were higher than the others (Figure 1) and this could be related to the level of ethylene sensitivity.…”

Section: Discussionsupporting

confidence: 90%

Postharvest responses of cut Dendrobium orchids to exogenous ethylene

Almasi¹,

Mohamed²,

Ahmad³

et al. 2012

Afr. J. Biotechnol.

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The time to senescence of flowers in Dendrobium hybrids is different and one of the major reasons for this variation in vase life can be related to differences in the level of ethylene sensitivity. This study was conducted to determine the sensitivity of six cut Dendrobium hybrids to exogenous ethylene. The cut orchid inflorescences were treated with or without 10 µL/L ethylene gas for 24 h, and then placed in bottles containing a standard vase solution. Water loss, vase life, anthocyanin contents and ethylene production were determined after the treatments. The results indicated that different hybrids showed distinct variances in ethylene sensitivities and degrees of deterioration. Dendrobium 'Darren Glory' and D. 'Jaquelyne Concert' × D. 'Rinappa' exhibited the utmost hyponasty, weight loss and degradation of anthocyanin content in sepals and petals. Thus, these two hybrids were categorized as the very sensitive group. On the other hand, D. 'Sonia Red', D. 'Shavin White', D. 'Sonia White' and D. 'Sonia Bom' showed lower sensitivity and hence were categorized in the less sensitive group. The results of this experiment and similar experiments to determine the resistant and susceptible cultivars to ethylene injury can be helpful in improving the postharvest life of cut orchid flowers.

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Section: Discussionsupporting

confidence: 90%

Postharvest responses of cut Dendrobium orchids to exogenous ethylene

Almasi¹,

Mohamed²,

Ahmad³

et al. 2012

Afr. J. Biotechnol.

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“…1-MCP treatment significantly improved bud opening by about 70%. This positive effect could be due to the suppression effect of 1-MCP on ethylene action and production, and also reduction in ethylene sensitivity of buds (Sun et al, 2009). Application of aqueous ozone resulted in improvement of bud opening by about 50%.…”

Section: Bud Openingmentioning

confidence: 99%

“…The 1-methylcyclopropene (1-MCP) also is an efficient inhibitor against endogenous and exogenous ethylene action, and therefore it could be considered as a good alternative for STS because it does not have harmful heavy metal residue. Application of 1-MCP has been successful in extending vase life of different flowers like cut mini Phalaenopsis (Sun et al, 2009), Cattleya (Singh & Jaroenkit, 2011;Yamane et al, 2004), Dendrobium (Uthaichay et al, 2007), carnation, delphinium and sweet pea (Ichimura et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Responses of Dendrobium 'darrenn glory' and Mokara 'calypso jumbo' orchids to 1-methylcyclopropene and aqueous ozone postharvest treatments

Almasi¹,

Mohamed

Anwar

et al. 2015

Bragantia

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Orchids possess a very special place amongst ornamental plants. But high ethylene sensitivity and early flower senescence of orchid result in a short vase life and rapid quality deterioration which is of great concern for the growers, traders and consumers. An attempt was made to study the influence of 1-methylcyclopropene (1-MCP) (0 and 300 nL L ) in prolonging vase life and maintaining quality of two cut orchid hybrids Dendrobium 'Darren Glory' (DDG) and Mokara "Calypso Jumbo" (MCJ). Results showed that orchid hybrids exhibited differences in their ethylene sensitivity, vase life, 1-aminocyclopropane-1-carboxylic acid (ACC) content and ACC oxidase activities. Pre-treatment with 1-MCP resulted in reduced ethylene production, vase life, ACC content and ACC oxidase activities, but increased bud opening %. Pre-treatment with аquеous ozone failed to influence all those parameters except bud opening %. Interaction effects of hybrid and 1-MCP were significant for ethylene production, hybrid and ozone for vas life, 1-MCP and ozone for bud opening %, and hybrid, 1-MCP and ozone for ethylene production and vase life. Aqueous ozone markedly contributed to the inhibition of microbial growth in vase solution. Pre-treatment of the cut orchid flowers with 300 nL L -1 1-MCP, followed by using 5.2 mg L -1 aqueous ozone as the vase solution could be recommended to maintain quality and extend vase life of both the DDG and MCJ orchid hybrids.

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“…8 Ethylene application inhibited opening of floral buds and induced flower bud drop. 9 Here, the exogenous applica- with the help of a sterilized forceps and kept in gluteraldehyde overnight. Thereafter floral buds and flowers were dehydrated by graded ethanol series.…”

mentioning

confidence: 99%

Role of ethrel in causation of floral malformation in mango cv. Amrapali: A scanning electron microscopy study

Singh

Ansari

Singh

et al. 2015

Plant Signaling & Behavior

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Floral malformation is a main constraint to reduce fruit yield in mango plants. Recently, we report on the role of putrescine in normalizing the functional morphology of mango flower by reducing various adverse effects of ethylene. Here, ethrel, an ethylene releasing compound, was exogenously applied to mango plant cv Amrapali to evaluate the response of flower development under high level of ethylene. Scanning electron microscopy (SEM) study showed that ethrel treated flowers were observed to progressively be deformed and remain unbloom. The flower buds were not distinguishable and flower parts such as petals, sepals, anther and stigma were not properly developed. The stamen showed fused anther lobes and carpel depicted curved style with pointed stigma. The findings of present study suggest the involvement of ethylene to abort the functional morphology of flower and thereby development of malformation.

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

Cited by 26 publications

References 21 publications

Postharvest responses of cut Dendrobium orchids to exogenous ethylene

Postharvest responses of cut Dendrobium orchids to exogenous ethylene

Responses of Dendrobium 'darrenn glory' and Mokara 'calypso jumbo' orchids to 1-methylcyclopropene and aqueous ozone postharvest treatments

Role of ethrel in causation of floral malformation in mango cv. Amrapali: A scanning electron microscopy study

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