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Position: Home > Articles > Studies on Uptake Kinetics of Fe Ion for Peach (P. persica) Chinese Agricultural Science Bulletin 2001,17 (1) 4-6

桃铁离子吸收动力学研究

作  者:
方从兵;孙俊
单  位:
安徽农业大学园艺系
关键词:
铁形态;pH;盐胁迫;桃v吸收动力学
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;NaCl 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。  
译  名:
Studies on Uptake Kinetics of Fe Ion for Peach (P. persica)
作  者:
Fang Congbing Sun Jun (Department of Horticulture, Anhui Agricultural University Hefei 230036)
关键词:
Fe ion status pH NaCl stress P. persica Uptake kinetics
摘  要:
The influences of Fe ion status, pH and NaCl stress on Fe ion up 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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