@article{oai:niigata-u.repo.nii.ac.jp:00002794,
 author = {Kojima, Kiyohide and Yamamoto, Masashi and Goto, Akihiko and Matsumoto, Ryouji},
 issue = {2},
 journal = {園芸学会雑誌},
 month = {Sep},
 note = {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. 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 weight of fruitlets increased dramatically, while that of ‘sepal ’ which included floral disks, sepals and receptacles increased a little. 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. 3. GAs concentrations of fruitlets continued to increase from 7 to 31 DAF, and decreased sharply 39 DAF. 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., 温州ミカンの生殖器官の内生植物ホルモンの生理的役割を明らかにするため，アブシジン酸（ABA），インドール酢酸（IAA）およびジベレリン（GAs）を，それぞれ，ガスクロマトグラフ（GC）電子捕獲型検出器，GC-質量分析器（選択的イオンモニタリング）およびわい性イネ生物検定で測定した．　1，開花に向けて，花柱と雌ずいのIAA濃度は変化しなかったが，花柱のABA濃度は6倍に増加した．幼果の新鮮重量39DAF（開花後日数）まで，非常に増加し，‘がく’（花盤，がく，花床を含む）はわずかに増加した．　2，４DAFに，幼果は本実験中で最大のABA濃度のピークを示したが，７DAF以降は‘がく’よりも低い値であった．幼果のIAA濃度は，７DAFに最高に達して，その後は低下し続けた．‘がく’のIAA濃度は，0から31DAFまで増加し，15DAF以降は幼果よりもはるかに高い値であった．　3，幼果のGas濃度は，7から31DAFまで増加し続け，39DAFに急に低下した．　4，このように幼果で，一連の内生ABA，IAAおよびGAs量のピークがあったので，これらホルモンが，順次におよび共働的に，幼果の保持と生長に役割をはたしていると思われる．},
 pages = {237--243},
 title = {Changes in ABA, IAA and GAs Contents in Reproductive Organs of Satsuma Mandarin},
 volume = {65},
 year = {1996}
}