Institute of Molecular, Cell & Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK.
Curr Opin Insect Sci. 2017 Oct;23:43-50. doi: 10.1016/j.cois.2017.07.001. Epub 2017 Jul 14.
Metal ions play distinct roles in living organisms, including insects. Some, like sodium and potassium, are central players in osmoregulation and 'blood and guts' transport physiology, and have been implicated in cold adaptation. Calcium is a key player as a second messenger, and as a structural element. Other metals, particularly those with multiple redox states, can be cofactors in many metalloenzymes, but can contribute to toxic oxidative stress on the organism in excess. This short review selects some examples where classical knowledge has been supplemented with recent advances, in order to emphasize the importance of metals as essential nutrients for insect survival.
金属离子在生物体中扮演着独特的角色，包括昆虫。一些金属离子，如钠和钾，是渗透调节和“血液和内脏”运输生理学的核心参与者，并且与对寒冷的适应有关。钙是第二信使和结构元素的关键参与者。其他金属，特别是那些具有多种氧化还原态的金属，可以作为许多金属酶的辅因子，但在过量时会导致生物体产生有毒的氧化应激。这篇简短的综述选择了一些例子，用最新的进展补充了经典知识，以强调金属作为昆虫生存所必需的营养物质的重要性。
