Algal mutants having a locked-in high light acclimated phenotype

The invention provides algal mutants having a locked-in high light acclimated phenotype. Mutant photosynthetic microorganisms having reduced chlorophyll and increased photosynthetic efficiency are provided. The mutants have a locked in high light-acclimated phenotype, in which many of the photosynthetic parameters characteristic of high light acclimated wild type cells are found in the LIHLA mutants when acclimated to low light, such as reduced chlorophyll, reduced NPQ, higher qP, higher Ek, higher Pmax per unit chlorophyll with little to no reduction in Pmax per cell, and higher rates of electron transport through photosystem II over a wide range of light intensities. Provided herein are constructs for attenuating or disrupting genes are provided for generating mutants having the LIHLA phenotype. Also provided are methods of culturing LIHLA mutants for the production of biomass or other products. 本发明的名称是具有不易变化的高光适应表型的藻类突变体。本发明提供具有减少的叶绿素及增加的光合效率的突变光合微生物。所述突变体具有不易变化的高光适应表型，其中当使LIHLA突变体适应低光时，在LIHLA突变体中发现高光适应野生型