Publications by authors named "Maya Haimovich"
Using a polyphasic approach, we examined the presence of Archaea in the Gulf of Aqaba, a warm marine ecosystem, isolated from major ocean currents and subject to pronounced seasonal changes in hydrography. Catalyzed reported deposition FISH analyses showed that Archaea make up to >20% of the prokaryotic community in the Gulf. A spatial separation between the two major phyla of Archaea was observed during summer stratification.
View Article and Find Full Text PDFIn Synechocystis sp. strain PCC 6803, over 450 genes are upregulated following transfer of the cells from a high (1-5% CO(2) in air, HC) to a low level of CO(2) (as in air or lower, LC). This includes sbtA, ndhF3 and cmpA involved in inorganic carbon (Ci) uptake.
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- Photorespiratory 2-phosphoglycolate (2PG) metabolism is crucial for photosynthesis in higher plants, but this study reveals that cyanobacteria, specifically Synechocystis sp. PCC 6803, also possess vital pathways for 2PG metabolism, including the C2 cycle and the glycerate pathway.
- A triple mutant lacking all three metabolic routes showed a high-CO2-requiring (HCR) phenotype, indicating that effective 2PG metabolism is necessary for survivability in varying CO2 conditions.
- The findings suggest that both cyanobacteria and C3 plants rely on 2PG metabolism for their functions in natural CO2 levels, highlighting the evolutionary significance of these metabolic routes in oxygenic