Temperature and photosynthesis 1. Some effects of temperature on carbon dioxide fixation by isolated chloroplasts

Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis Pub Date : 1966-10-10 DOI:10.1016/0926-6585(66)90056-2

C.W. Baldry, C. Bucke, D.A. Walker

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引用次数: 33

Abstract

1.
1. Isolated pea chloroplasts were used to determine effects of temperature on photosynthetic CO₂ fixation in saturating light and high CO₂.
2.
2. Increases in temperature between 5° and 30° increased the maximum rate and shortened an initial induction period. The maximum rate was not an exponential function of temperature.
3.
3. Above 20°, values for the Q₁₀ were less than 2. Below 15° they were greater than 2 and increased progressively, with decreasing temperature, to values as high as 9.
4.
4. The results, obtained with a purely photosynthetic system, support earlier work with intact organisms which led some investigators to conclude that photosynthesis did not obey the Arrhenius law. It is suggested that this may be a consequence of the cyclic nature of the reactions involved.

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温度与光合作用温度对离体叶绿体固定二氧化碳的影响

1.1. 以豌豆离体叶绿体为研究对象，研究了饱和光和高CO2条件下温度对光合CO2固定的影响。温度在5°~ 30°之间升高，最大速率增加，初始诱导期缩短。最大速率不是温度的指数函数。在20°以上，Q10的值小于2。当温度低于15°时，它们大于2，并随着温度的降低而逐渐增加，最高可达9.4.4。在纯光合作用系统中获得的结果，支持了早期在完整生物体中进行的工作，这使得一些研究人员得出光合作用不服从阿伦尼乌斯定律的结论。有人认为，这可能是所涉及的反应的循环性质的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Biochimica et Biophysica Acta (BBA) - Biophysics including Photosynthesis

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