Carney G C, Shore P, Chandra H
Environ Res. 1986 Apr;39(2):290-8. doi: 10.1016/s0013-9351(86)80055-x.
Daphnia were exposed to radioactively labeled cadmium in solution and in the presence of Chlorella which had been preloaded with the metal to varying extents. Illuminated algal cells retained the cadmium and greatly reduced its availability to the daphnids. Autoradiographic evidence was obtained which implicated the exoskeleton as a major sink for the cadmium taken up from solution. Cadmium in solution at a concentration close to the 48 hr LC50 level did not affect respiration during the first 6 hr of exposure. Retention patterns were similar, regardless of the source of cadmium, but ecdysis resulted in a considerable loss of body burden provided that this had been acquired via a predominantly soluble route.
将水蚤暴露于含有放射性标记镉的溶液中，且溶液中存在预先加载了不同程度金属的小球藻。光照下的藻类细胞保留了镉，并大大降低了镉对水蚤的可利用性。获得了放射自显影证据，表明外骨骼是从溶液中摄取的镉的主要沉积部位。浓度接近48小时半数致死浓度水平的溶液中的镉在暴露的前6小时内不影响呼吸。无论镉的来源如何，保留模式相似，但蜕皮会导致身体负担大量流失，前提是这是通过主要为可溶途径获得的。
