生物体中的钒(V)浓度通常非常低。迄今为止,在动物中,只有一些尿chorate和环节动物物种在其组织中含有非常高水平的V。V在不同的动物门(Porifera)中过度积累的新病例,即,据报道,两种同类型的海绵海绵物种Oscarellaloularis和O.tuberculata。测得的浓度(高达30g/kg干重)超过了以前报道的浓度,并且在所有海绵类别中均未发现。在两个Oscarella物种中,V主要积累在表面组织中,在膜细胞中,如(V(IV)),在更深的组织中部分减少到V(III)。来自细菌和海绵的候选基因已被确定为可能参与V的代谢。这一发现为在海洋生态系统和/或生物启发过程中开发生物修复策略以回收这种关键金属提供了线索。
Vanadium (V) concentrations in organisms are usually very low. To date, among animals, only some urochordate and annelid species contain very high levels of V in their tissues. A new case of hyper-accumulation of V in a distinct animal phylum (Porifera), namely, the two homoscleromorph sponge species Oscarella lobularis and O. tuberculata is reported. The measured concentrations (up to 30 g/kg dry weight) exceed those reported previously and are not found in all sponge classes. In both Oscarella species, V is mainly accumulated in the surface tissues, and in mesohylar cells, as V(IV), before being partly reduced to V(III) in the deeper tissues. Candidate genes from Bacteria and sponges have been identified as possibly being involved in the metabolism of V. This finding provides clues for the development of bioremediation strategies in marine ecosystems and/or bioinspired processes to recycle this critical metal.