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首页> 外文期刊>Polar biology >Chilling out: the evolution and diversification of psychrophilic algae with a focus on Chlamydomonadales
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Chilling out: the evolution and diversification of psychrophilic algae with a focus on Chlamydomonadales

机译：冷静下来：嗜冷藻的进化和多样化，重点是衣藻

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摘要

The Earth is a cold place. Most of it exists at or below the freezing point of water. Although seemingly inhospitable, such extreme environments can harbour a variety of organisms, including psychrophiles, which can withstand intense cold and by definition cannot survive at more moderate temperatures. Eukaryotic algae often dominate and form the base of the food web in cold environments. Consequently, they are ideal systems for investigating the evolution, physiology, and biochemistry of photosynthesis under frigid conditions, which has implications for the origins of life, exobiology, and climate change. Here, we explore the evolution and diversification of photosynthetic eukaryotes in permanently cold climates. We highlight the known diversity of psychrophilic algae and the unique qualities that allow them to thrive in severe ecosystems where life exists at the edge. We focus on psychrophilic green algae from the Chlamydomonadales, discussing recent discoveries and directions for future research, and argue that they are among the best available models for studying psychrophily and life at the edge in photosynthetic eukaryotes.
机译：地球是一个寒冷的地方。它的大部分存在于水的冰点以下。尽管看似荒凉，但这种极端的环境却可以容纳各种生物，包括嗜冷菌，它们可以承受严酷的寒冷，并且按定义不能在更温和的温度下生存。在寒冷的环境中，真核藻类经常占主导地位并构成食物网的基础。因此，它们是研究严寒条件下光合作用的演变，生理和生物化学的理想系统，这对生命，外生物学和气候变化的起源具有重要意义。在这里，我们探索光合作用的真核生物在永久性寒冷气候下的进化和多样化。我们重点介绍了嗜冷藻的已知多样性及其独特的品质，这些品质使它们能够在边缘生活的严峻生态系统中壮成长。我们专注于衣藻的嗜冷绿藻，讨论了最近的发现和未来研究的方向，并认为它们是研究光合真核生物边缘的嗜冷性和生命的最佳可用模型之一。

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