铬和锌是人体的必需元素,植物性食品是这些元素的主要来源。微量营养元素的形态和区域性、它在特种食品中的生物活性以及食品加工对其含量与化学状态的影响等均可用生物标记的植物组织方便地加以研究。为了有效地生产内标记植物材料,必须了解在植物的整个生育期内植物体内铬、锌的积累与分布情况。虽然Skeffington等人曾报道过大麦饲喂CrO_4~(2-),~(51)Cr由其根部向地上部的转移要比饲喂Cr~(3+)时大得多,然而其他研究者则认为铬在植物体内的积累与饲喂方式无关。Cary Chromium and zinc are essential elements of the body and plant foods are the main source of these elements. The morphology and regionality of micronutrients, their bioactivity in specialty foods, and the effects of food processing on their content and chemical status can all be conveniently studied using biomarker plant tissues. In order to effectively produce endodoxin plant material, it is necessary to know the accumulation and distribution of chromium and zinc in the plant throughout the growth period of the plant. Although Skeffington et al. Reported that barley was fed CrO 4 2-, Cr (51) Cr was much larger than Cr 3+ in roots when transferred to the shoots, whereas other researchers Chromium in the plant that accumulation and feeding methods has nothing to do. Cary