Cloning and characterization of a DCEIN2 gene responsive to ethylene and sucrose in cut flower carnation

Fu, Zhaodi; Wang, Huinan; Liu, Juan; Liu, Juanxu; Wang, Jing; Zhang, Zhaoqi; Yu, Yingnian

doi:10.1007/s11240-010-9886-2

Cited by 16 publications

(11 citation statements)

References 46 publications

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“…EIN2 homologs have been isolated in petunia (Shibuya et al, 2004) and carnation (Fu et al, 2011). Analysis of the role of EIN2 in petal senescence in petunia using transgenic plants with reduced PhEIN2 expression showed that transgenic plants exhibited significant delays in petal senescence after pollination and exogenous ethylene treatment (Shibuya et al, 2004).…”

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confidence: 99%

Molecular Mechanisms of Petal Senescence in Ornamental Plants

Shibuya

2012

J. Japan. Soc. Hort. Sci.

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Flower longevity is one of the most important traits for ornamental plants. Ethylene plays a crucial role in petal senescence in many plant species. Genes involved in ethylene biosynthesis, ethylene perception, and its signal transduction have been identified in several ornamental plants. Genetic modification of ethylene signaling genes has successfully improved flower longevity in several plant species. In contrast, regulatory mechanisms of petal senescence in flowers that show ethylene-independent senescence remain largely unknown. Japanese morning glory (Ipomoea nil) is a proposed model plant for ethylene-independent petal senescence, and an important role of autophagy in petal senescence has been highlighted in this plant. This review focused on our recent findings on ethylene signaling and our attempts to identify factors regulating ethylene-independent petal senescence.

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confidence: 99%

Molecular Mechanisms of Petal Senescence in Ornamental Plants

Shibuya

2012

J. Japan. Soc. Hort. Sci.

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“…Previous work revealed that STS treatment extended the vase life of carnation flowers, but no ethylene production was detected (Fu et al. 2010).…”

Section: Resultsmentioning

confidence: 93%

“…After sucrose treatment, the vase life of flowers of carnation cv. Master was extended to 12 day after full opening (Fu et al. 2010).…”

Section: Resultsmentioning

confidence: 99%

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Transcriptional regulation of two RTE‐like genes of carnation during flower senescence and upon ethylene exposure, wounding treatment and sucrose supply

Wang

Liu

et al. 2011

Plant Biology

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RTE1 (REVERSION-TO-ETHYLENE SENSITIVITY1) was identified as a positive regulator of ETR1 (ethylene resistant1) function in Arabidopsis; RTEs are a small gene family. Ethylene plays a crucial role in the senescence of carnation (Dianthus caryophyllus L.) flowers. Two cDNA clones encoding putative RTE-like protein (DCRTE1 and DCRTH1) were obtained from total RNA isolated from senescing carnation petals using RT-PCR and RACE techniques. The predicted proteins of DCRTE1 and DCRTH1 consist of 228 and 233 amino acids, respectively. Interestingly, the deduced DCRTE1 protein, like most other RTEs, includes two putative transmembrane domains, while the deduced DCRTH1 protein includes five putative transmembrane domains, according to the TMHMM database. Northern blots showed that the level of DCRTE1 mRNA in petals first decreased then increased remarkably after ethylene production started, and DCRTE1 expression showed an increasing trend in ovaries during natural flower senescence. The amount of DCRTH1 transcripts increased gradually in both petals and ovaries during natural senescence. Exogenous ethylene increased transcript abundance of DCRTE1 and DCRTH1 to various degrees in both petals and ovaries. STS treatment decreased the level of DCRTH1 mRNA in petals and ovaries compared with the control. DCRTE1 and DCRTH1 showed a rapid increase and then a decrease in mRNA accumulation in leaves after wounding. These results suggest that both DCRTE1 and DCRTH1 could play important roles in flower senescence-related signalling. Sucrose treatment did not remarkably affect the amount of DCRTE1 and DCRTH1 mRNAs.

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Flower senescence: some molecular aspects

Shahri

Tahir

2013

Planta

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Cloning and characterization of a DCEIN2 gene responsive to ethylene and sucrose in cut flower carnation

Cited by 16 publications

References 46 publications

Molecular Mechanisms of Petal Senescence in Ornamental Plants

Molecular Mechanisms of Petal Senescence in Ornamental Plants

Transcriptional regulation of two RTE‐like genes of carnation during flower senescence and upon ethylene exposure, wounding treatment and sucrose supply

Flower senescence: some molecular aspects

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