Articles
FLOWER BUD ABSCISSION TRIGGERED BY THE ANTHER IN THE ASIATIC HYBRID LILIES
Article number
900_33
Pages
265 – 271
Language
English
Abstract
It is not well documented which organ may trigger the onset of tepal or petal senescence and/or flower bud abscission.
Asiatic hybrid L. × elegans Thunb., Red Carpet lily flowers were selected as a model to study this relationship because the various floral organs can be easily dissected and collected for physiological studies.
We hypothesized that anthers could be a triggering organ inducing flower bud abscission.
Ethanol soluble sucrose, fructose, and glucose were analyzed in the tepal, anther, filament, and ovary plus style.
The analysis was conducted using flower buds weighing 1.5 and 3.9 g.
The sucrose content in the anther of small buds (1.5 g) remained high when a single bud was held at 21°C for 5 days, suggesting that sucrose is not hydrolyzed into fructose and glucose.
However, in large buds (3.9 g), sucrose was not detected when flowers were held at 21°C for 5 days.
The absence of sucrose hydrolysis in the anther and lack of translocation of sucrose from the filaments to the anther in small buds may be factors that contribute to flower bud abscission in Red Carpet lily.
Asiatic hybrid L. × elegans Thunb., Red Carpet lily flowers were selected as a model to study this relationship because the various floral organs can be easily dissected and collected for physiological studies.
We hypothesized that anthers could be a triggering organ inducing flower bud abscission.
Ethanol soluble sucrose, fructose, and glucose were analyzed in the tepal, anther, filament, and ovary plus style.
The analysis was conducted using flower buds weighing 1.5 and 3.9 g.
The sucrose content in the anther of small buds (1.5 g) remained high when a single bud was held at 21°C for 5 days, suggesting that sucrose is not hydrolyzed into fructose and glucose.
However, in large buds (3.9 g), sucrose was not detected when flowers were held at 21°C for 5 days.
The absence of sucrose hydrolysis in the anther and lack of translocation of sucrose from the filaments to the anther in small buds may be factors that contribute to flower bud abscission in Red Carpet lily.
Publication
Authors
Sun Ae Hwang, Pook Ok Lee, Mok Pil Choi, Hee Su Lee, Jong Suk Lee, M.S. Roh
Keywords
Lilium ×elegans Thunb., physiological disorder, post-production physiology
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