Explore Nitrogen sports deactivate! Drought tolerance of higher plants has been studied by many workers, and the increase in compatible solute inside the cells has been discovered to be important for this tolerance (for reviews, see Hoekstra et al. 2001). Recently we measured restoration processes of assorted photosynthetic reactions together with energy transfer and photochemical reactions throughout rehydration of N. commune colonies (Satoh et al. 2002). During rehydration, phycobiliproteins and PSI complexes recovered their functional varieties in a short time (within 1 min). PSII actions recovered quite slowly, but the quantity of water which was needed to get well and maintain full PSII actions was only as a lot as twice the dry weight of the N.
commune is around zero.22 M, which shall be supported by the next experiments. In this figure, we uncared for the water remaining within the air-dried colonies because its quantity is just 5% of the dry weight calculated after oven drying.
three reveals the time programs of light-induced redox changes of P700, a response middle Chl dimer of PSI, in N. commune colonies (Fig. 3A) and Synechocystis PCC6803 cells (Fig. 3B) suspended in various concentrations of sorbitol. However, the stationary level in N. commune (Fig. 4, open circles) was almost a half of that in Synechocystis PCC6803 (Fig. four, filled circles). 8 shows time courses of DLE in N. Credit: Nitrogen sports deactivate.
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