两栖动物形态色素沉着的磁敏感性依赖于光和眼睛，且与自由基对机制一致
Magnetosensitivity of amphibian morphological pigmentation is light- and eye-dependent and consistent with the radical pair mechanism
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中文总结 AI 辅助
研究探讨弱磁场对非洲爪蟾蝌蚪形态色素沉着的影响，发现其磁敏感性依赖光和眼睛，场强依赖性与自由基对模型一致，确立两栖动物色素沉着为研究自由基对量子生物学的易处理系统。
中文摘要 AI 辅助
弱磁场影响广泛的生物过程，但其潜在机制尚不清楚。自由基对机制（RPM）涉及量子自旋动力学，是一个主要假设。我们发现弱磁场以场强依赖的方式调节非洲爪蟾蝌蚪的形态色素沉着，即视周黑素细胞的数量。该反应依赖于光和眼睛。观察到的场强依赖性在定量上与自由基对模型一致。这些特性让人联想到在候鸟中起作用的光依赖性磁感受，并将两栖动物色素沉着确立为研究自由基对量子生物学的易处理脊椎动物系统。
英文摘要
Weak magnetic fields influence a wide range of biological processes, yet the underlying mechanisms are poorly understood. The radical pair mechanism (RPM), which involves quantum spin dynamics, is a leading hypothesis. Here we show that weak magnetic fields modulate morphological pigmentation -- specifically, the number of perioptic melanophores -- in Xenopus laevis tadpoles in a field-strength-dependent manner. The response is light- and eye-dependent. The observed field-strength dependence is quantitatively consistent with a radical pair model. These properties are reminiscent of the light-dependent magnetoreception that is thought to operate in migratory birds, and establish amphibian pigmentation as a tractable vertebrate system for the study of radical-pair quantum biology.
