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Adventitious staminate flower formation in gibberellin treated gynoecious cucumber plants
Year:
1977
Source of publication :
Plant and Cell Physiology
Authors :
Dax-Fuchs, Edna
;
.
Volume :
18
Co-Authors:
Fuchs, E., Department of Floriculture, Volcani Center, Agricultural Research Organization, Beit Dagan, Israel
Atsmon, D., Department of Plant Genetics, Weizmann Institute of Science, Rehovot, Israel
Halevy, A.H., Department of Ornamental Horticulture, Hebrew University of Jerusalem, Rehovot, Israel
Facilitators :
From page:
1193
To page:
1201
(
Total pages:
9
)
Abstract:
Single gibberellin (A4+7) treatments induced the appearance of staminate floral buds in several consecutive nodes on the main stem of genetically female cucumber (Cucumis sativus L.). The staminate buds appeared next to pistillate buds which showed various degrees of degeneration. Similarly, repeated GA treatments induced the appearance of staminate flowers in otherwise strictly hermaphrodite plants, next to bisexual flowers. However, the bisexual buds, unlike the pistillate ones, did not show any deleterious effects of the GA treatment. Therefore, it is inferred that the hormonally induced staminate buds did not develop by sexual reversion of would-be pistillate or bisexual buds, but rather, represent adventitious buds which, in normally grown female or hermaphrodite plants, never develop. It thus seems that predetermined pistillate or bisexual buds do not change into staminate ones, while change in the reverse direction has been demonstrated in the past (at least for the gynoecious ones).The effectiveness of the GA treatment in the gynoecious plants showed an acropetal gradient both within the affected region, as well as along the main stem. Autoradiographic histological examinations showed that the course of development of the induced staminate floral bud did not differ from that of normally developing buds. © 1977 Oxford University Press.
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DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29654
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:48
Scientific Publication
Adventitious staminate flower formation in gibberellin treated gynoecious cucumber plants
18
Fuchs, E., Department of Floriculture, Volcani Center, Agricultural Research Organization, Beit Dagan, Israel
Atsmon, D., Department of Plant Genetics, Weizmann Institute of Science, Rehovot, Israel
Halevy, A.H., Department of Ornamental Horticulture, Hebrew University of Jerusalem, Rehovot, Israel
Adventitious staminate flower formation in gibberellin treated gynoecious cucumber plants
Single gibberellin (A4+7) treatments induced the appearance of staminate floral buds in several consecutive nodes on the main stem of genetically female cucumber (Cucumis sativus L.). The staminate buds appeared next to pistillate buds which showed various degrees of degeneration. Similarly, repeated GA treatments induced the appearance of staminate flowers in otherwise strictly hermaphrodite plants, next to bisexual flowers. However, the bisexual buds, unlike the pistillate ones, did not show any deleterious effects of the GA treatment. Therefore, it is inferred that the hormonally induced staminate buds did not develop by sexual reversion of would-be pistillate or bisexual buds, but rather, represent adventitious buds which, in normally grown female or hermaphrodite plants, never develop. It thus seems that predetermined pistillate or bisexual buds do not change into staminate ones, while change in the reverse direction has been demonstrated in the past (at least for the gynoecious ones).The effectiveness of the GA treatment in the gynoecious plants showed an acropetal gradient both within the affected region, as well as along the main stem. Autoradiographic histological examinations showed that the course of development of the induced staminate floral bud did not differ from that of normally developing buds. © 1977 Oxford University Press.
Scientific Publication
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