EPISODE · May 21, 2026 · 20 MIN
901. 喇叭虫：单细胞生命的无脑学习机制
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来自加州大学旧金山分校的研究揭示了单细胞生物喇叭虫（Stentor）如何在没有大脑的情况下进行学习与记忆。研究人员发现，这种生物通过钙信号触发一种名为CaMKII的酶，对现有蛋白进行化学修饰，从而学会忽略外界的物理刺激。这种分子学习机制不仅能遗传给后代，还与人类神经元的运作方式惊人地相似。这一发现暗示了复杂的生命学习能力可能源于大脑进化前就已存在的古老细胞机制。研究结果挑战了记忆必须依赖新蛋白合成的传统认知，为理解生物演化提供了新视角。内容来源：https://www.ucsf.edu/news/2026/04/431841/no-brain-required-how-single-celled-stentor-learns
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901. 喇叭虫：单细胞生命的无脑学习机制
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