单词 | photosystem |
释义 | ˈphotosystem Bot. [f. photosynthetic a. + system.] Either of the two biochemical mechanisms in plants by which light is converted into useful energy.
1965Biochim. & Biophys. Acta CIX. 349 Photoreduction of substrate V by photosystem 1. 1973J. J. Wolken in L. P. Miller Phytochem. I. ii. 26 This phenomenon termed the ‘red drop’ is interpreted, at present, as due to a special form of ‘long wavelength absorbing’ chlorophyll belonging to a Photosystem I. Ibid., The low efficiency of the far-red (beyond 680 nm) would require another pigment-complex absorbing below 680 nm, which has been designated as Photosystem II. 1974Nature 4 Jan. 4/1 There now seems to be no doubt that KCN inhibits photosynthesis by specifically blocking electron flow through photosystem one (S1). |

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