K. Kralova et al., EFFECT OF 2-ALKYLTHIO-4-PYRIDINECARBOTHIAMIDES ON PHOTOSYNTHETIC ELECTRON-TRANSPORT IN SPINACH-CHLOROPLASTS, Collection of Czechoslovak Chemical Communications, 62(3), 1997, pp. 516-520
2-Alkylthio-4-pyridinecarbothiamides (1) inhibit photosynthetic electr
on transport in spinach chloroplasts. The dependence of photosynthesis
-inhibiting activity upon the lipophilicity of 2-alkylthio substituent
shows quasi-parabolic course with maximum effectiveness at 2-octyl de
rivative. The site of action of 1 is the intermediate Dt, correspondin
g to tyrosine radical, which is situated in D-2 protein on the donor s
ide of photosystem 2.