Use of Cyanobacterial Proteins to Engineer New Crops

摘要: Cyanobacteria, the closest living relatives of ancient endosymbiont that gave rise to modern-day chloroplasts, offer a rich source genes for plant genetic engineering, due both similarities with and differences from systems. On one hand, cyanobacteria share many metabolic pathways cells, especially which may be critical when transgenic product needs interact endogenous systems or substrates exert its function. other most mechanisms involved in regulation gene expression have arisen after endosymbiosis, permitting more rational manipulation introduced trait, free host regulatory networks. In addition, sequence divergence between their cyanobacterial orthologues prevents, cases, unwanted consequences silencing cosuppression. Finally, few tolerance environmental and/or nutritional stresses disappeared genome during evolutionary pathway vascular plants, raising possibility recovering these adaptive advantages by introducing those lost into plants. spite obvious potential, use engineer plants increased productivity stress has been relatively rare. this chapter, we review several examples approach applied engineering considerable success. They include modification central improve carbon assimilation allocation expressing unregulated enzymes, development chilling increasing desaturation membrane-bound fatty acids, pigment manipulation, shifts light quality perception, production biodegradable polymers, synthesis ketocarotenoids not present crops. Tolerance adverse environments could achieved introduction evolution, such as flavodoxin. The results obtained illustrate power data mining genomes biotechnological tool design higher productivity, enhanced stress, potential biofarming.