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題名 | 根瘤菌Bradyrhizobium japonicum和Rhizobium radiobacter感染發芽及水耕十石(金珠)大豆(Glycine max Shi-Shi)之異黃酮改變=Isoflavone Change in Seedlings and Cultivation Solution of Glycine max Shi-Shi Infected by Soybean Symbiont Rhizobium Bradrhizobium japonicum and Rhizobium radiobacter |
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作者 | 朱紀實; 陳立耿; 葉盈劭; 彭嘉賓; Chu, Chishih; Chen, Lih-geeng; Ye, Ying-shao; Phielip, Alvin Andryan; |
期刊 | 嘉大農林學報 |
出版日期 | 20160800 |
卷期 | 13:2 2016.08[民105.08] |
頁次 | 頁55-65 |
分類號 | 434.218 |
語文 | chi |
關鍵詞 | 大豆; 異黃酮; 根瘤菌; Soybean; Isoflavine; Rhizobium; |
中文摘要 | 大豆異黃酮類為植物性類雌激素,對人類其有不同的生理功能,但對大豆與根瘤菌共生時,異黃酮類表現改變鮮少報導。本實驗探討以10^5、10^6及10^7菌量的根瘤菌Bradrhizobium japonicum和Rhizobium radiobacter去感染苗木根部及發芽大豆,分析3天後水耕栽培液及成染3天及6天後苗木異黃酮類含量。在水耕系統,B. japonicum和R. radiobacter會分泌類異黃酮物質及改變大豆苗木根部分泌異黃酮。以B. japonicum感染發芽大豆,會發現六種已知異黃酮daidzin、glycitin、genistin、daidzein、glycitein和genistein的表現會隨成染菌數及時間而不同,並可區分成1.隨菌數及時間增加而提升表現的glycitein和glycitin;2.隨時間增加及菌量增加而減少表現的genistin和daidazein;3.隨菌量增加及時間延長而減少表現的daidzin和genistein等三類。在未知7種異黃酮中,主要是S1及S2含量改變,其表現在第3天最高,並在第6天顯著降低;而P2、P5、P7、S3和S6只在第6天表現,但隨菌量而有不同。大豆異黃酮類除隨發芽時間官能基改變外,根瘤菌亦可能分泌類異黃酮物質,並隨時間及菌量改變大豆異黃酮種類及其含量比。 |
英文摘要 | Isoflavones of soybean are estrogen-like chemicals with diverse functions in human. However, seldom research reported the role of isoflavones in the immune defense against rhizobium infection. The aims of this study was to investigate the effects of rhizobium B. japonicum 和Rhizobium radiobacter and the dosages of 10^5, 10^6, and 10^7 bacteria on the isoflavone expression in germinated soybean at 3-d and 6-d post infection and in water cultivation solution of soybean post at 3-d post infection. In water cultivation, B. japonicum and R. radiobacter secreted isoflavone-like chemicals and changes the isoflavones secreted by root. Using B. japonicum to infect 1-d germinated seed, six known daidzin、glycitin、genistin、daidzein、glycitein and genistein were detected with three expression patterns , that include increase with dosage and exposure timing for glycitein and glycitin associated positively with ; increase with exposure timing and decrease with dosage for genistin and daidzein, and increase with dosage and decrease with exposure timing for daidzin and genistein. Among other seven unidentified isoflavones, S1 and S2 were the major chemicals in the seedling treated with B. japonicum to at 3-d post infection and without bacterial treatment and expressed higher amount at 3-d post infection and significant decreaser at 6-d post infection. P2, P5, P7, S3 and S6 were only expressed at 6-d post infection and their expression was dependent on bacterial dosages. In conclusion, change in isoflavone functional group in soybean was associated with germination timing. Furthermore, rhizobium could secreted isoflavane - like chemicals and changed the isoflavane expression by bacterial species and exposure timing. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。