Why core antenna proteins of photosystems are numbered 43 and 47?
Answers
10.5.3 Photosynthetic Genes
Photosystem II family protein-coding genes (protein Z, d2 protein, cp43 chlorophyll protein) are up-regulated in salt-treated S. fruticosa (Diray-Arce et al., 2015). In Salicornia europaea photosynthetic genes, PSI and PSII pigment-binding proteins, b6f complex, and ATPase synthase CF1 were significantly induced (Fan et al., 2013). Populus euphratica expression of psbA proteins, D2 protein, and Rubisco large unit were decreased after 12 h of salt shock. Genes for plastidic and nuclear protein synthesis, genes with undefined functions, genes pointing to glycolysis and stress (a putative glutathione S-transferase and COBRA protein precursor) suggest the relationship of salinity with decreased photosystem II activity. Restored water potential after salinity shock causes an increase in calcineurin-like protein CLB activity, 1 aminocyclopropane-1-carboxylic acid oxidase, root organelle-specific genes psbA, and mitochondrial ATPase (Brinker et al., 2010).