Details
| Original language | English |
|---|---|
| Pages (from-to) | 1232-1239 |
| Number of pages | 8 |
| Journal | Plant cell reports |
| Volume | 19 |
| Issue number | 12 |
| Publication status | Published - Dec 2000 |
| Externally published | Yes |
Abstract
To analyze differences in flower longevity and ethylene sensitivity, we isolated Rosa hybrida gene fragments with sequence similarity to the Arabidopsis thaliana ethylene receptor gene-family. A rose gene (RhETR1) highly similar to AtERS1 had been previously sequenced. Here, we report the isolation of three additional partial rose genes (RhETR2-4) belonging to different sub-groups of ethylene receptor genes. RhETR2 clusters with AtETR1, RhETR4 with AtERS1 and RhETR1, whereas RhETR3 shows high sequence similarity to AtETR2 and AtERS2. Expression analysis of RhETR2 and RhETR3 revealed that they are differentially expressed. RhETR2 is expressed at a constitutive level throughout flower development whereas RhETR3 expression increases in senescing flowers of the cultivar 'Bronze' which has a short floral life while it remains at low levels in the long-lasting flowers of the cultivar 'Vanilla'. Expression of both genes was increased by ABA and ethylene treatment, but transcript abundance differed between rose cultivars with different postharvest performance. These results indicate that differences in flower life among rose cultivars could be due to differences in receptor levels.
Keywords
- Abscisic acid, Ethylene, ETR homologues, Flower senescence, Rosa hybrida
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Plant cell reports, Vol. 19, No. 12, 12.2000, p. 1232-1239.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Characterization of an ethylene receptor family with differential expression in rose (Rosa hybrida L.) flowers
AU - Müller, R.
AU - Stummann, B. M.
AU - Serek, M.
PY - 2000/12
Y1 - 2000/12
N2 - To analyze differences in flower longevity and ethylene sensitivity, we isolated Rosa hybrida gene fragments with sequence similarity to the Arabidopsis thaliana ethylene receptor gene-family. A rose gene (RhETR1) highly similar to AtERS1 had been previously sequenced. Here, we report the isolation of three additional partial rose genes (RhETR2-4) belonging to different sub-groups of ethylene receptor genes. RhETR2 clusters with AtETR1, RhETR4 with AtERS1 and RhETR1, whereas RhETR3 shows high sequence similarity to AtETR2 and AtERS2. Expression analysis of RhETR2 and RhETR3 revealed that they are differentially expressed. RhETR2 is expressed at a constitutive level throughout flower development whereas RhETR3 expression increases in senescing flowers of the cultivar 'Bronze' which has a short floral life while it remains at low levels in the long-lasting flowers of the cultivar 'Vanilla'. Expression of both genes was increased by ABA and ethylene treatment, but transcript abundance differed between rose cultivars with different postharvest performance. These results indicate that differences in flower life among rose cultivars could be due to differences in receptor levels.
AB - To analyze differences in flower longevity and ethylene sensitivity, we isolated Rosa hybrida gene fragments with sequence similarity to the Arabidopsis thaliana ethylene receptor gene-family. A rose gene (RhETR1) highly similar to AtERS1 had been previously sequenced. Here, we report the isolation of three additional partial rose genes (RhETR2-4) belonging to different sub-groups of ethylene receptor genes. RhETR2 clusters with AtETR1, RhETR4 with AtERS1 and RhETR1, whereas RhETR3 shows high sequence similarity to AtETR2 and AtERS2. Expression analysis of RhETR2 and RhETR3 revealed that they are differentially expressed. RhETR2 is expressed at a constitutive level throughout flower development whereas RhETR3 expression increases in senescing flowers of the cultivar 'Bronze' which has a short floral life while it remains at low levels in the long-lasting flowers of the cultivar 'Vanilla'. Expression of both genes was increased by ABA and ethylene treatment, but transcript abundance differed between rose cultivars with different postharvest performance. These results indicate that differences in flower life among rose cultivars could be due to differences in receptor levels.
KW - Abscisic acid
KW - Ethylene
KW - ETR homologues
KW - Flower senescence
KW - Rosa hybrida
UR - http://www.scopus.com/inward/record.url?scp=0034538430&partnerID=8YFLogxK
U2 - 10.1007/s002990000251
DO - 10.1007/s002990000251
M3 - Article
AN - SCOPUS:0034538430
VL - 19
SP - 1232
EP - 1239
JO - Plant cell reports
JF - Plant cell reports
SN - 0721-7714
IS - 12
ER -