| 桃铁离子吸收动力学研究 |
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| 引用本文： | 方从兵,孙俊.桃铁离子吸收动力学研究[J].中国农学通报,2001,17(1):4-6. |
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| 作者姓名： | 方从兵 孙俊 |
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| 作者单位： | 安徽农业大学园艺系 |
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| 摘 要： | 以毛桃幼苗为试材，对不同铁形态、pH值和盐胁迫条件下铁离子吸收动力学特性进行了研究。结果表明，pH是影响铁吸收的主要因素，不同铁形态的有效性随pH的变化而变化；pH和铁形态影响桃铁离子吸收动力学参数Km和Imax；NaCI胁迫对盐敏感性植物（桃）铁吸收特性的影响，可能与质膜透性、载体系统活性以及介质中有效铁含量有关。
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| 关 键 词： | 铁形态 PH 盐胁迫 桃 吸收动力学业 果树 |
| 修稿时间： | 2000年11月28 |
Studies on Uptake Kinetics of Fe Ion for Peach (P. persica) |
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| Fang Congbing,Sun Jun.Studies on Uptake Kinetics of Fe Ion for Peach (P. persica)[J].Chinese Agricultural Science Bulletin,2001,17(1):4-6. |
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| Authors: | Fang Congbing Sun Jun |
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| Abstract: | The influences of Fe ion status, pH and NaCl stress on Fe ion u p take characteristics were studied in peach (Prunus persica) seedlings with 35-da ys-old . The results showed that pH is the major factor of affecting iron ab sorption. Efficiency of different Fe ion status in peach was determined by p H. Fe ion uptake kinetic parameters Km and Imax were influenced by pH and F e ion status respectively. The findings also revealed the effect of NaCl str ess on Fe ion uptake characteristics of salt-sensitive plant (peach), which may be closely related to perviousness of plast membrane, activity of carrier system and free iron content respectively in cultivated medium. |
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| Keywords: | Fe ion status pH NaCl stress P persica Uptake kinetics |
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