Novel molecular function of mushroom in carbon dioxide assimilation

大气和陆地生物圈之间的碳交换是评估全球变暖问题的一个关键考虑因素。光合作用被认为是陆地生态系统吸收CO_2气体的唯一过程。然而，我们在这里发现，担子菌(蘑菇)子实体没有光合作用能力，可以选择性地吸收CO_2气体。证明了香菇对CO_2气体的吸收能力。这一发现不仅迫使我们重新审视碳平衡，而且可能表明存在除涉及光合作用生物的固定CO_2系统之外的其他固定CO_2系统。

Carbon exchange between the atmosphere and the terrestrial biosphere is a key consideration in assessing the issue of global warming. Photosynthesis has come to be considered as the only process in CO_2 gas uptake to the terrestrial ecosystem. Here we have, however, discovered that Basidiomycetes(mushroom) fruiting bodies, which have no photosynthetic capabilities, selectively absorb CO_2 gas. We demonstrated that the CO_2 gas uptook abilities of L. edodes. This discovery not only compels us to re-examine the carbon balance, but also may indicate the possible existence of CO_2 fixation systems other than those involving photosynthetic organisms.