Exogenous Sugars Involvement in Senescence and Ethylene Production of Tree Peony ‘Luoyang Hong’ Cut Flowers

다국어 초록 (Multilingual Abstract)

Sugars play important roles in petal senescence of cut flowers. In the Expt. 1 of this study, the effects of different concentrations of glucose (60, 90, and 120 g·L<SUP>-1</SUP>) and sucrose (30, 60, and 90 g·L<SUP>-1</SUP>) application on the vase life, rate of flower diameter increase, rate of flower weight increase and ethylene production of cut tree peony (Paeonia suffruticosa ‘Luoyang Hong’) were evaluated. At the earlier stage, treatments of different concentrations of glucose and sucrose all retarded the process of flower opening and inhibited the increase of flower diameter and weight, while senescence of flowers fed with different concentrations of glucose was delayed at later stage. Flowers treated with 90 g·L<SUP>-1</SUP> glucose displayed the longest vase life, which showed significant difference (P < 0.05) from those of flowers with the control and sucrose treatments. All treatments with glucose or sucrose not only retarded the decrease of flower diameter and weight, but also suppressed the ethylene production at the earlier stage and delayed the peak of ethylene evolution. In order to study the effect of exogenous sugar on the postharvest response of cut tree peony to ethylene, Expt. 2 was conducted. Cut flowers were treated with 90 g·L<SUP>-1</SUP> glucose for 4 hours before (GE) or after (EG) exposed to 10 μL·L<SUP>-1</SUP> ethylene for 4 hours. Generally, the opening process of flowers with GE and EG treatments was similar to that of the control, however GE treatment delayed flower senescence. Both GE and EG treatments improved flower diameter and weight, and GE treatment delayed the time of flower weight decrease. Besides, GE delayed climacteric ethylene evolution for 8 hours. All above suggest that exogenous sugars delay tree peony ‘Luoyang Hong’ cut flower senescence and extend flower vase life through their roles in the decrease of water loss and the suppression of sensitivity to ethylene and ethylene production.

참고문헌 (Reference)

1 황선애, "보존용액처리가 오리엔탈 백합 ‘카사블랑카’의 절화수명과 당함량 변화에 미치는 영향" 한국원예학회 27 (27): 263-268, 2009

2 Guo, W.W, "The postharvest characteristics and water balance of some cultivars of tree peony cut flowers" 40 : 89-93, 2004

3 Smeekens, S, "Sugar-induced signal transduction in plants" 51 : 49-81, 2000

4 Rolland, F, "Sugar sensing and signaling in plants: Conserved and novel mechanisms" 57 : 675-709, 2006

5 Rolland, F, "Sugar sensing and signaling in plants" 14 (14): S185-205, 2002

6 Hoeberichts, F.A, "Sucrose prevents up-regulation of senescence-associated genes in carnation petals" 58 : 2873-2885, 2007

7 Verlinden, S, "Sucrose loading decreases ethylene responsiveness in carnation (Dianthus caryophyllus cv.White Sim) petals" 31 : 305-312, 2004

8 Halevy, A.H, "Senescence and postharvest physiology of cut flowers. Part 1" 1 : 204-236, 1979

9 Pun, U.K, "Role of sugars in senescence and biosynthesis of ethylene in cut flowers" 37 : 219-224, 2003

10 Liao, L, "Postharvest life of cut rose flowers as affected by silver thiosulphate and sucrose" 41 : 229-303, 2000

11 van der Meulen-Muisers, J.J.M, "Postharvest flower development in Asiatic hybrid lilies as related to tepal carbohydrate status" 21 : 201-211, 2001

12 Jia, P.Y, "Postharvest behavior and endogenous ethylene pattern of Paeonia suffruticosa cut flowers" 768 : 448-450, 2006

13 Gibson, S.I, "Plant sugar-response pathways. Part of a complex regulatory web" 124 : 1532-1539, 2000

14 van Doorn, W.G, "Physiology and molecular biology of petal senescence" 59 : 453-480, 2008

15 Borochov, A, "Physiology and biochemistry of flower petal senescence" 11 : 15-43, 1989

16 Thimann, K.V, "Metabolism of oat leaves during senescence. V. senescence in light" 59 : 448-454, 1977

17 Chen, W.S, "Kinetin, gibberellic acid and sucrose affect vase life in Oncidium spp" 148 : 177-181, 2001

18 Dekkers, B.J.W, "Interaction between sugar and abscisic acid signalling during early seedling development in Arabidopsis" 67 : 151-167, 2008

19 Zhu, G, "Glucose-induced delay of seed germination in rice is mediated by the suppression of ABA catabolism rather than an enhancement of ABA biosynthesis" 50 : 644-651, 2009

20 Zhou, L, "Expression of ethylene receptor and transcription factor genes, and ethylene response during flower opening in tree peony (Paeonia suffruticosa)" 62 : 171-179, 2010

21 Ma, N, "Exogenous ethylene influences flower opening of cut roses (Rosa hybrida) by regulating the genes encoding ethylene biosynthesis enzymes" 48 : 434-444, 2005

22 Ichimura, K, "Effects of the time of sucrose treatment on vase life, soluble carbohydrate concentrations and ethylene production in cut sweet pea flowers" 28 : 117-122, 1999

23 Mayak, S, "Effect of sucrose on response of cut carnation flowers to kinetin, ethylene and abscisic acid" 101 : 583-585, 1976

24 Zhou, L, "Effect of ethylene on cut flowers of tree peony ‘Luoyang Hong’ opening and senescence process and endogenous ethylene biosynthesis" 36 : 239-244, 2009

25 Tanase, K, "Differential expression levels of ethylene biosynthetic pathway genes during senescence of long-lived carnation cultivars" 47 : 210-217, 2008

26 Gibson, S.I, "Control of plant development and gene expression by sugar signaling" 8 : 93-102, 2005

27 Massolo, J.F, "1-Methylcyclopropene (1-MCP) delays senescence, maintains quality and reduces browning of non-climacteric eggplant (Solanum melongena L.) fruit" 59 : 10-15, 2011