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1
題名:Gibberellic Acid與Abscisic Acid對矮生稻幼苗生長的影響     (36點)
Effect of Gibberellic Acid and Abscisic on the Elongation Growth of Dwarf Rice Seedling
著者:胡淼琳(Meau-Lin Hwu) ;楊冠政(Kuan-Jen Yang)
出版地區:台灣
出版城市:台北市
學科:生命科學
刊名:師大生物學報
卷期:11期(1976.10)
頁碼:9-26
語言:繁體中文
摘要: 中文摘要PDF ; 英文摘要PDF

CAa 明顯地,促進矮生弱( Oryzae Sati ve C. V. I -Ceo Con) 幼苗的生長, ABA則強烈抑制之。卷;ABA與GAa 同時存在時,兩者之蹋顯現自相互作用的現車。 RNA總量的測定和祖P -i是入( incorporation) 的實驗都顯示~GAa促進RNA的合成在生長受促進之前發生,而DNA的增加附在RNA之役。 ABA抑制幼苗的生長,降低核敢與妥白的含量。當ABA 嘉興G .A 究同時4年在時,其結果顯示: 1.當ABA 濃度達到5 X 10-5 M以土時,加入GA a 無相互作用的現象。 2. ABA 濃度他於5 X 10-5 MQ寺, CAa 善惡ABA 之閱本結抗作用(Antagonism)發生。以5 X 10-6 MABA 和5x 1O- 4 MCA a 共同處瘦幼苗.i.第五天,幼苗的高度已經恢拔封是怎餾水培是色的水主容, RNA 的含量有明顯的田弄,位,仍有部份的抑制, DNA 妥白噴和幼苗乾愛量雖布參差本等的增加,去F仍布.50% 以土的抑制。 由此可見, ABA 與GA a 之闋的相互作用為部份( partial ) 和非競學e挂(例如compel iti ve ) 去,亦曾F這兩種荷爾蒙之闊的作用可‘能只寫部份的相逢,這一相關部份顯示~桔抗的現象。持相關部份的ABA 的抑制作用則非加入CAa fJr能解除。 另外,本實驗亦就GA a 與A,8 A 在梭于發芽時, α ﹒澱粉嚼的合成和林生長閥之相互作用﹒情形一併卻以討論。
GA 3 enhances the elongation growth of early dwarf rice ( Oryzae sativa cv , I-Geo-Gen seedlings. Markedly preceding growth of the shoots is an increased RNA synthesis, as shown by total RNA determination and 32 P-incorporation into RNA. But the DNA content is later and is evident after treatment with GA a for 4 days. ABA inhibits shoot elongations, nucleic acid and protein synthesis. When GA 3 together with ABA, it isfoui'1d: 1) the inhibition of shoot growth by higher concentration of ABA ( above 5 x 10-5 M can't be overcome by the additton of GA3 even at reasonably high concentration. 2) the inhibition of growth by ABA below the concentration of 5 x 10-5 M can be gradually overcome by increasing the cone. of GA3 ‧ When ABA ( 5 x 10-6 M) is added toget with 5 x 10-4 M GA 3 for 5 days, shoot length of the dwarf rice seedlings reaches the leve of di s t , water control. RNA content is largely reversed, but the content of DNA, prate' mid shoot dry weight, though increased slightly, are still markedly inhibited over 50 % . These results suggest that the interaction between GA 3 and ABA is partial, incomple and non-competitive. i . e., GA3 can only overcome part of the inhib i tory action of ABA While the other part, maybe the most part, on which they both act differently and independently can't be overcome by the addition of axagenous GA 3 ‧ In addition, the interaction between these2 hormones in the control of seed germinati a-amylase synthesis in embryoless half endospe rms. and root growth of seedlings are studi and discussed.


    

本卷期目次
師大生物學報 11期 (1976.10)
尾殼核中央部對顎運動作用的肌電圖研究/ 黃寶貴吳京一
台灣笄黴菌(C. cucurbitarum)以及親?種關係之研究/ 吳美麗簡秋源
台北市水廠附近溪水?染之生態研究--第二報 溪水內生物因子之分析/ 郝道猛張昭慶黃和廷林文德
A Preliminary Study of Acupuncture on Electrocardiogram/ J. D. Lin
X-射線對初孵化小雞紅血球,白血球及血漿蛋白之影響/ 張昭慶
An Improved Technique for the Electrocar-diographic Recording of Fish/ Tzong-Toong TsaiShih-Zen ChangJinn-Ding Lin
去勢對雄小鼠鬍鬚生長的影響/ 吳美玲張之傑
Gibberellic Acid與Abscisic Acid對矮生稻幼苗生長的影響/ 胡淼琳楊冠政
大白鼠呼吸機械特性之測定/ 黃基礎
 
   
 
   

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