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Model of a possible arrangement of a photosynthetic unit (LH1 and LH2 are localized around the reaction center (RC). (a) LH1 + RC Rhodospirillum rubrum growing at high light inten-sities, (b) LH1 + RC + LH2 Rhodopseudomonas palustris growing at low light intensities, (c) LH1 + RC + LH2 Rhodopseudomonas palustris growing at high light intensities, (d) LH1 + RC + LH2 Al-lochromatium minutissimum growing at low light intensities (data from Solovev and Erokhin, 2008 [86]).
