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אסיף מאגר המחקר החקלאי
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Differentiation between petal blueing and senescence of cut 'Mercedes' rose flowers
Year:
2001
Authors :
Meir, Shimon
;
.
Nissim-Levi, Ada
;
.
Oren-Shamir, Michal
;
.
Ovadia, Rinat
;
.
Philosoph-Hadas, Sonia
;
.
Volume :
76
Co-Authors:
Oren-Shamir, M., Ornamental Horticulture Dept., ARO, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Dela, G., Ornamental Horticulture Dept., ARO, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Ovadia, R., Ornamental Horticulture Dept., ARO, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Nissim-Levi, A., Ornamental Horticulture Dept., ARO, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Philosoph-Hadas, S., Ornamental Horticulture Dept., ARO, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Meir, S., Ornamental Horticulture Dept., ARO, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Facilitators :
From page:
195
To page:
200
(
Total pages:
6
)
Abstract:
One of the striking visible changes that occur in cut red rose flowers during vase life is blueing of the petals prior to wilting. However, it is not clear whether this phenomenon is part of the senescence syndrome. The aim of this study was to differentiate between petal blueing and sensecence processes. For this purpose we followed in parallel the kinetics of several typical senescence processes and blueing of rose petals in cut flowers in the presence or absence of sucrose, known to extend the longevity of cut roses and to delay senescence. We have shown that the kinetics of rose petal blueing is similar to that of the vacuolar pH increase, and different from the kinetics of other senescence parameters such as a decrease in water content and an increase of ion leakage of the petal cells. Sucrose treatment delayed all the senescence processes assayed at advanced stages, but it had an immediate effect only in delaying flower blueing and in increasing cell sap pH. This suggests a correlation between the two processes. Indeed, our results clearly demonstrate that the change in pH occurring in the petals is the main cause of the blueing effect.
Note:
Related Files :
cell vacuole
cut flower
discoloration
flower color
petal
pH
Rose
senescence
sucrose
Show More
Related Content
More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
26163
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:20
You may also be interested in
Scientific Publication
Differentiation between petal blueing and senescence of cut 'Mercedes' rose flowers
76
Oren-Shamir, M., Ornamental Horticulture Dept., ARO, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Dela, G., Ornamental Horticulture Dept., ARO, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Ovadia, R., Ornamental Horticulture Dept., ARO, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Nissim-Levi, A., Ornamental Horticulture Dept., ARO, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Philosoph-Hadas, S., Ornamental Horticulture Dept., ARO, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Meir, S., Ornamental Horticulture Dept., ARO, Volcani Center, P.O. Box 6, Bet-Dagan 50250, Israel
Differentiation between petal blueing and senescence of cut 'Mercedes' rose flowers
One of the striking visible changes that occur in cut red rose flowers during vase life is blueing of the petals prior to wilting. However, it is not clear whether this phenomenon is part of the senescence syndrome. The aim of this study was to differentiate between petal blueing and sensecence processes. For this purpose we followed in parallel the kinetics of several typical senescence processes and blueing of rose petals in cut flowers in the presence or absence of sucrose, known to extend the longevity of cut roses and to delay senescence. We have shown that the kinetics of rose petal blueing is similar to that of the vacuolar pH increase, and different from the kinetics of other senescence parameters such as a decrease in water content and an increase of ion leakage of the petal cells. Sucrose treatment delayed all the senescence processes assayed at advanced stages, but it had an immediate effect only in delaying flower blueing and in increasing cell sap pH. This suggests a correlation between the two processes. Indeed, our results clearly demonstrate that the change in pH occurring in the petals is the main cause of the blueing effect.
Scientific Publication
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