Multigene manipulation of photosynthetic carbon assimilation increases CO2 fixation and biomass yield in tobacco.

ABSTRACT: Over the next 40 years it has been estimated that a 50% increase in the yield of grain crops such as wheat and rice will be required to meet the food and fuel demands of the increasing world population. Transgenic tobacco plants have been generated with altered combinations of sedoheptulose-1,7-bisphosphatase, fructose-1,6-bisphosphate aldolase, and the cyanobacterial putative-inorganic carbon transporter B, ictB, of which have all been identified as targets to improve photosynthesis based on empirical studies. It is shown here that increasing the levels of the three proteins individually significantly increases the rate of photosynthetic carbon assimilation, leaf area, and biomass yield. Furthermore, the daily integrated measurements of photosynthesis showed that mature plants fixed betwe

SUBMITTER: Simkin AJ 

PROVIDER: S-EPMC4473996 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature