Because the genes that are turned on, or upregulated, are the genes that determine which proteins the organism will produce, this massive remodeling of the available gene profile has a dramatic effect. "Our studies reveal that the particular cyanobacterium that we studied can extensively change its physiology and metabolism, and its photosynthetic apparatus," Bryant said. "It changes the core components of the three major photosynthetic complexes, so one ends up with a very differentiated cell that is then capable of growing in far-red light. The impact is that the organism is better than other cyanobacterial strains at producing oxygen in far-red light and, in fact, it is even better than the same cells grown under other conditions. Cells grown in far-red light produce 40 percent more oxygen when assayed in far-red light than cells grown in red light when those cells are assayed under the same far-red light conditions."
Because the genes that are turned on, or upregulated, are the genes that determine which proteins the organism will produce, this massive remodeling of the available gene profile has a dramatic effect. "Our studies reveal that the particular cyanobacterium that we studied can extensively change its physiology and metabolism, and its photosynthetic apparatus," Bryant said. "It changes the core components of the three major photosynthetic complexes, so one ends up with a very differentiated cell that is then capable of growing in far-red light. The impact is that the organism is better than other cyanobacterial strains at producing oxygen in far-red light and, in fact, it is even better than the same cells grown under other conditions. Cells grown in far-red light produce 40 percent more oxygen when assayed in far-red light than cells grown in red light when those cells are assayed under the same far-red light conditions."
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Because the genes that are turned on, or upregulated, are the genes that determine which proteins the organism will produce, this massive remodeling of the available gene profile has a dramatic effect. "Our studies reveal that the particular cyanobacterium that we studied can extensively change its physiology and metabolism, and its photosynthetic apparatus," Bryant said. "It changes the core components of the three major photosynthetic complexes, so one ends up with a very differentiated cell that is then capable of growing in far-red light. The impact is that the organism is better than other cyanobacterial strains at producing oxygen in far-red light and, in fact, it is even better than the same cells grown under other conditions. Cells grown in far-red light produce 40 percent more oxygen when assayed in far-red light than cells grown in red light when those cells are assayed under the same far-red light conditions."
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