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当前位置: 首页 > 文章 > 镉(Cd)低吸收积累大白菜品种的初步筛选与分析 北方园艺 2020 (5) 21-27
Position: Home > Articles > Preliminary Screening and Analysis of Cadmium (Cd) Low Absorption Accumulation Chinese Cabbage Cultivars Northern Horticulture 2020 (5) 21-27

镉(Cd)低吸收积累大白菜品种的初步筛选与分析

作  者：
李鑫;贺立龙;张烨;郑晗;高建伟
单  位：
山东师范大学生命科学学院;山东省农业科学院蔬菜花卉研究所/山东省设施蔬菜生物学重点实验室/国家蔬菜改良中心山东分中心
关键词：
大白菜;镉(Cd);积累;吸收
摘  要：
以26个大白菜品种为试材,采用原子吸收分光光度法、非损伤微测技术,研究了大白菜对镉(Cd)积累以及吸收数量,以初步筛选Cd低积累低吸收大白菜品种。结果表明:大白菜品种ZBX叶片中镉积累水平较高,而JL-75叶片中镉积累水平较低。高镉积累大白菜品种ZBX根部对镉吸收的能力较高,低镉积累大白菜品种JL-75根部对镉吸收能力较低,说明根对Cd~(2+)吸收的NMT结果与富集特征一致。线性回归分析表明,不同的大白菜品种在吸收过程中,吸收速度并不会随着时间的增加一直上升,且流速到达稳定值的时间点也不相同,由此推断,这也是导致大白菜吸收能力不同的因素之一。该研究结果对进一步挖掘大白菜调控Cd吸收以及叶片积累的作用机制具有重要意义。
译  名：
Preliminary Screening and Analysis of Cadmium (Cd) Low Absorption Accumulation Chinese Cabbage Cultivars
作  者：
LI Xin;HE Lilong;ZHANG Ye;ZHENG Han;GAO Jianwei;College of Life Sciences,Shandong Normal University;Institute of Vegetables and Flowers,Shandong Academy of Agricultural Sciences/Shandong Key Laboratory of Greenhouse Vegetable Biology/Shandong Branch of National Vegetable Improvement Center;
关键词：
Chinese cabbage;;cadmium(Cd);;accumulation;;absorption
摘  要：
To exploring the accumulation and absorption of cadmium( Cd) in Chinese cabbage,atomic absorption spectrophotometry and the Noninvasive Microtest Technology( NMT) were carried out using 26 Chinese cabbage cultivars. This study had initially screened the Chinese cabbage cultivar with the low-Cd accumulation and absorption. The results indicated that the Cd content in the leaves of Chinese cabbage ZBX was higher,while the JL-75 was lower. The root of ZBX with higher Cd accumulation showed a stronger ability of Cd absorption; and the root of the JL-75 with lower Cd accumulation showed weaker ability to absorb Cd2 +,indicating that the NMT results of Cd2 +absorption were consistent with the Cd accumulation levels in Chinese cabbages. Linear regression analysis showed that,during the absorption processes in different Chinese cabbages,the absorption rate did not increase with time,and the time points was different when the flow rate reached a stable value. It was suggested that this result could also be the reason of the difference of the Cd absorption ability in Chinese cabbages. This study was significant for further exploring the mechanism of the Cd absorptionin Chinese cabbage and the Cd accumulation in the leaves.

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