EPISODE · Jun 28, 2026 · 14 MIN
938. 不死之土:探索生命的代谢起源
from 知为谁 · host 知为谁
这篇文章探讨了一项关于生命起源的科学发现,研究人员在经过放射性灭菌处理的土壤中观察到了长达六年的代谢活动。尽管土壤中已无活细胞存在,但它仍持续消耗氧气并释放二氧化碳,这种现象挑战了只有生物体才能进行代谢的传统认知。实验证据表明,土壤中的矿物质可能充当了催化剂,驱动了类似克雷布斯循环的化学反应。这一发现支持了一种假说,即生物代谢过程可能在生命正式诞生之前就已经存在于地质环境中。研究强调,这种“非生物代谢”或许是地球早期化学向生物进化的关键过渡阶段。内容来源:https://www.quantamagazine.org/the-dirt-that-refused-to-die-20260601/
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938. 不死之土:探索生命的代谢起源
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