tomato Cab-4 and Cab-5 genes encode a second type of CAB polypeptides localized in Photosystem II

• Published in: Plant molecular biology Vol. 9; no. 2; pp. 109 - 120
• Main Authors: Pichersky, E, Hoffman, N.E, Malik, V.S, Bernatzky, R, Tanksley, S.D, Szabo, L, Cashmore, A.R
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer 01-01-1987
• Subjects: Agronomy. Soil science and plant productions; amino acid sequences; Biological and medical sciences; Cell structures and functions; chlorophyll a/b binding protein; Chloroplast, photosynthetic membrane and photosynthesis; chromosome mapping; cloning; Economic plant physiology; Fundamental and applied biological sciences. Psychology; Lycopersicon esculentum; Molecular and cellular biology; molecular sequence data; multigene family; Net assimilation, photosynthesis, carbon metabolism. Photorespiration, respiration, fermentation (anoxia, hypoxia); nucleotide sequences; Nutrition. Photosynthesis. Respiration. Metabolism; photosystem II; segregation; Solanum lycopersicum var. lycopersicum; transcription (genetics); translation; Genetic mapping; Vegetals; Biological evolution; Chlorophyll b; Chlorophyll a; Photosystem 2; Binding protein; Complementary DNA; Dicotyledones; Angiospermae; Lycopersicon esculentum; Spermatophyta; Solanaceae; Molecular cloning
• ISSN: 0167-4412; 1573-5028
• DOI: 10.1007/bf00015643

The photosynthetic apparatus of plant chloroplasts contains two photosystems, termed Photosystem I (PSI) and Photosystem II (PSII). Both PSI and PSII contain several types of chlorophyll a/b-binding (CAB) polypeptides, at least some of which are structurally related. It has been previously shown that multiple genes the genome of many higher plants. In tomato, there encoding one type of PSII CAB polypeptides exist in are at least eight such genes, distributed in three independent loci. Genes encoding a second type of CAB polypeptides have been isolated from several plant species, but the precise location of the gene products has not been determined. Here we show that tomato has two unlinked genes encoding this second type and that this type of CAB polypeptide is also localized in PSII.