ABSTRACT
As shown by Ruf et al., (2000), protein levels of CP 26 were reduced substantially in tobacco with deletion of ORF 62 (ycf 9). However, the results of Andersson et al., (2001) suggest that the phenotype of ORF 62 is not related to loss of CP 26. The data suggested that CP 29 and CP 26 are involved in the coordination of the LHC II antennae and not directly involved in NPQ (Andersson et al., 2001). CP 29 antisense lines also had decreased amounts of CP 24. This study obviously indicated that a plant can complete its full life cycle under static conditions even when they lack one or more LHC proteins. Further, the results also suggest that under highly fluctuating light intensity, all the LHC proteins are required for efficient function. Thus, the above investigations using antisense lines and reverse genetics approaches have given rise to better understanding of the functions of the proteins. However, a much greater detailed study in this direction is to be encouraged.
