Changes in ABA, IAA and GAs Contents in Reproductive Organs of Satsuma Mandarin.
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- Kojima Kiyohide
- Faculty of Agriculture, Kyoto Prefectural Univ.
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- Yamamoto Masashi
- Kuchinotsu Branch. Fruit Tree Research Station
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- Goto Akihiko
- Kuchinotsu Branch. Fruit Tree Research Station
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- Matsumoto Ryouji
- Kuchinotsu Branch. Fruit Tree Research Station
Bibliographic Information
- Other Title
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- ウンシュウミカンの生殖器官におけるABA,IAAおよびGAs含量の変化
- Changes in ABA IAA and GAs contents in
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Description
The endogenous levels of abscisic acid (ABA), indole-3-acetic acid (IAA) and gibberellins (GAs) in reproductive organs of satsuma mandarin (Citrus unshiu Marc. cv. Ozaki) were determined by gas chromatograph (GC)-electron capture detector, GC-mass spectrometry-selective ion monitoring and dwarf rice bioassay. Their probable roles are discussed.<BR>1. As anthesis approached, IAA concentration in styles and stamens did not change, while ABA concentration of styles increased six-fold. Until 39 days after flowering (DAF), the fresh weigth of fruitlets increased dramatically, while that of 'sepals' which included floral disks, sepals and receptacles increased a little.<BR>2. Fruitlets attained their maximum concentration of ABA 4 DAF and then declined rapidly. Its level remained much lower than that of 'sepals' from 7 DAF. IAA concentrations of fruitlets reached a maximum 7 DAF, and thereafter decrease; that in the 'sepals' increased from anthesis to 31 DAF surpassing that of fruitlets about 15 DAF.<BR>3. GAs concentrations of fruitlets continued to increase from 7 to 31 DAF, and decreased sharply 39 DAF.<BR>4. Because there was a sequence of peaks of endogenous ABA, IAA and GAs levels in fruitlets, it seemed that these hormones may play a sequential and synergistic role in the retention and growth of fruitlets.
Journal
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- Journal of the Japanese Society for Horticultural Science
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Journal of the Japanese Society for Horticultural Science 65 (2), 237-243, 1996
THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE
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Keywords
Details 詳細情報について
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- CRID
- 1390001206302007296
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- NII Article ID
- 10006099952
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- NII Book ID
- AN00025257
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- COI
- 1:CAS:528:DyaK28XlvV2rsL0%3D
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- ISSN
- 1880358X
- 00137626
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- HANDLE
- 10191/6609
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- NDL BIB ID
- 4029185
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed