Frost hardening and photosynthetic performance of Scots pine (Pinus sylvestris L.). 2. Seasonal changes in the fluidity of thylakoid membranes

cell membranes chloroplaste chloroplasts cloroplasto duration feuille hojas insolation leaves lipide lipids membranas celulares membrane cellulaire modele modelos models photosynthese photosynthesis pinus sylvestris proteine proteins resistencia invernal saison seasons temperatura temperature thylakoidmembran winter hardiness