CO_2 mmon Sense

摘要

Plants and animals sense and respond to carbon dioxide (CO_2), but the means by which they do so have not been well defined. Plants-detect and respond to an increase in environmental CO_2 concentration by closing the gas valves in their leaves (thus conserving water), but the CO_2 sensing mechanism has been debated. Fruit flies, mosquitoes, and moths sense CO_2 to find food resources such as decaying fruits, human prey, and flowers, respectively, but as well, the sensing mechanisms are not yet fully characterized.