Changes in sugars in organs of Phalaenopsis florets during different flowering stages of intact plant inflorescences

Phalaenopsis flowers possess extraordinary longevity. However, the changes of sugars, including glucose, fructose and sucrose, in organs of floret during different flowering stages of inflorescences attached to a plant have not been reported. To accomplish this, the sugars level in different floret...

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Main Authors: E H Hsiang, Y S Liao, J Y Chen, Y C Chen, H L Wang, C L Chang, J D Chung
Format: Article
Language:English
Published: Society for Promotion of Horticulture - Indian Institute of Horticultural Research 2023-12-01
Series:Journal of Horticultural Sciences
Subjects:
Online Access:https://jhs.iihr.res.in/index.php/jhs/article/view/1204
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author E H Hsiang
Y S Liao
J Y Chen
Y C Chen
H L Wang
C L Chang
J D Chung
author_facet E H Hsiang
Y S Liao
J Y Chen
Y C Chen
H L Wang
C L Chang
J D Chung
author_sort E H Hsiang
collection DOAJ
description Phalaenopsis flowers possess extraordinary longevity. However, the changes of sugars, including glucose, fructose and sucrose, in organs of floret during different flowering stages of inflorescences attached to a plant have not been reported. To accomplish this, the sugars level in different floret organs were studied at 4 different stages (1. half open, 2. bloom 1 month, 3. bloom 2 months, and 4. wilting). Glucose and fructose were the major soluble sugars in the sepal, petal, labellum, pedicel, and remainder (including the column, anther cap, pollinia, and stigma) of a floret, but their levels decreased from stages 1 to 4. However, the amount of sucrose increased significantly at stage 4 in the sepal, petal, pedicel, and remainder, with the exception that the labellum remained constant throughout all stages. These results demonstrate that glucose and fructose are the major solutes that contribute to floret opening and blooming, and sucrose is salvaged and exported before floret senescence for opening other florets on the same inflorescence. Meanwhile, labellum possesses different sugar metabolism from other organs of Phalaenopsis floret.
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spelling doaj.art-5537dfa74c114e7981c987ed240ccc242024-04-05T18:20:25ZengSociety for Promotion of Horticulture - Indian Institute of Horticultural ResearchJournal of Horticultural Sciences0973-354X2582-48992023-12-0118210.24154/jhs.v18i2.1204Changes in sugars in organs of Phalaenopsis florets during different flowering stages of intact plant inflorescencesE H Hsiang0Y S Liao1J Y Chen2Y C Chen3H L Wang4C L Chang5J D Chung6National University of Kaohsiung, No. 700, Kaohsiung University Rd. Nan-Tzu district 811, Kaohsiung, TaiwanNational University of Kaohsiung, No. 700, Kaohsiung University Rd. Nan-Tzu district 811, Kaohsiung, TaiwanNational University of Kaohsiung, No. 700, Kaohsiung University Rd. Nan-Tzu district 811, Kaohsiung, TaiwanNational University of Kaohsiung, No. 700, Kaohsiung University Rd. Nan-Tzu district 811, Kaohsiung, TaiwanNational University of Kaohsiung, No. 700, Kaohsiung University Rd. Nan-Tzu district 811, Kaohsiung, TaiwanFood Industry Research and Development Institute, 300, Hsinchu, TaiwanTaiwan Forestry Research Institute, Zhongzheng district 100, Taipei, Taiwan Phalaenopsis flowers possess extraordinary longevity. However, the changes of sugars, including glucose, fructose and sucrose, in organs of floret during different flowering stages of inflorescences attached to a plant have not been reported. To accomplish this, the sugars level in different floret organs were studied at 4 different stages (1. half open, 2. bloom 1 month, 3. bloom 2 months, and 4. wilting). Glucose and fructose were the major soluble sugars in the sepal, petal, labellum, pedicel, and remainder (including the column, anther cap, pollinia, and stigma) of a floret, but their levels decreased from stages 1 to 4. However, the amount of sucrose increased significantly at stage 4 in the sepal, petal, pedicel, and remainder, with the exception that the labellum remained constant throughout all stages. These results demonstrate that glucose and fructose are the major solutes that contribute to floret opening and blooming, and sucrose is salvaged and exported before floret senescence for opening other florets on the same inflorescence. Meanwhile, labellum possesses different sugar metabolism from other organs of Phalaenopsis floret. https://jhs.iihr.res.in/index.php/jhs/article/view/1204floret; flowering stages; Phalaenopsis; sugars
spellingShingle E H Hsiang
Y S Liao
J Y Chen
Y C Chen
H L Wang
C L Chang
J D Chung
Changes in sugars in organs of Phalaenopsis florets during different flowering stages of intact plant inflorescences
Journal of Horticultural Sciences
floret; flowering stages; Phalaenopsis; sugars
title Changes in sugars in organs of Phalaenopsis florets during different flowering stages of intact plant inflorescences
title_full Changes in sugars in organs of Phalaenopsis florets during different flowering stages of intact plant inflorescences
title_fullStr Changes in sugars in organs of Phalaenopsis florets during different flowering stages of intact plant inflorescences
title_full_unstemmed Changes in sugars in organs of Phalaenopsis florets during different flowering stages of intact plant inflorescences
title_short Changes in sugars in organs of Phalaenopsis florets during different flowering stages of intact plant inflorescences
title_sort changes in sugars in organs of phalaenopsis florets during different flowering stages of intact plant inflorescences
topic floret; flowering stages; Phalaenopsis; sugars
url https://jhs.iihr.res.in/index.php/jhs/article/view/1204
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