Engineering photosynthetic organisms for the production of biohydrogen.
Engineering photosynthetic organisms for the production of biohydrogen.
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DOI：
10.1007/s11120-014-9991-x
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发表时间：
2015-03
影响因子：
3.7
通讯作者：
Ghirardi, Maria L.
中科院分区：
文献类型：
--
作者：
Dubini, Alexandra;Ghirardi, Maria L.
产氧光合生物（例如绿藻）能够吸收阳光并将化学能转化为氢气。该过程利用了这些生物体的光合作用装置，将水氧化与氢气生产联系起来。因此，生物氢气有潜力成为未来的替代燃料，并显示出产生大规模可持续能源的巨大前景。微藻能够通过激活利用氢化酶作为催化剂的 3 种不同途径，在光缺氧或暗缺氧条件下产生 H2。在这篇综述中，我们强调了阻碍绿藻产生氢气的主要障碍，以及如何通过代谢和基因工程解决这些限制。 我们还讨论了未来用于氢气生产的商业藻类光生物系统发展所面临的主要挑战和瓶颈。最后，我们为未来的战略和潜在的新技术提供建议，以实现优化氢气生产的集成系统。
Oxygenic photosynthetic organisms such as green algae are capable of absorbing sunlight and converting the chemical energy into hydrogen gas. This process takes advantage of the photosynthetic apparatus of these organisms which links water oxidation to H2 production. Biological H2 has therefore the potential to be an alternative fuel of the future and shows great promise for generating large scale sustainable energy. Microalgae are able to produce H2 under light anoxic or dark anoxic condition by activating 3 different pathways that utilize the hydrogenases as catalysts. In this review, we highlight the principal barriers that prevent hydrogen production in green algae and how those limitations are being addressed, through metabolic and genetic engineering. We also discuss the major challenges and bottlenecks facing the development of future commercial algal photobiological systems for H2 production. Finally we provide suggestions for future strategies and potential new techniques to be developed towards an integrated system with optimized hydrogen production.
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