光呼吸的化学控制是目前颇受重视的研究内容,这由于光合作用过程中所累积的有机物质是作物产量的基础。经六十年代中期研究表明,光呼吸释放出co_2要比暗呼吸大三～五倍,约占光合作用同化co_2量的三分之一以上。因此,有人认为光呼吸的存在是限制光合速率的主要因素。降低光呼吸作用,有可能较大幅度地提高作物的光合作用效率而增加产量。 The chemical control of photorespiration is a subject of much research at present due to the accumulation of organic matter during photosynthesis which is the basis of crop yield. After 60 years of mid-term studies have shown that the photorespiratory release of CO2 than the dark respiration of about three to five times, accounting for more than one-third of the amount of photosynthesis assimilation co_2. Therefore, some people think that the existence of photo respiration is the main factor limiting photosynthesis rate. Reduce photorespiration, it is possible to significantly improve crop photosynthesis efficiency and increase production.