title: Characterization of Streptomyces isolates causing colour changes of mural paintings in ancient Egyptian tombs.
abstract: Paintings in ancient Egyptian tombs often suffer colour changes due to microbial growth and colonization. Streptomyces strains were isolated from mural paintings of Tell Basta and Tanis tombs (East of Nile Delta, Egypt) and were identified using biochemical and molecular methods. The16S rDNA sequences data indicated that isolated strains were closely related to S. coelicolor, S. albidofuscus, S. ambofaciens, S. canarius, S. parvullus, S. corchorusii, S. albidofuscus and S. nigrifaciens. It could be shown that Streptomyces strains are involved on a large scale in the colour changes of paintings and stone support by producing a wide range of metabolites such as acids (oxalic, citric and sulphuric acids), biopigments of melanin, carotenoids, and hydrogen sulphide.
authors.affiliation: Botany Department, Faculty of Science, Zagazig University, Zagazig, Egypt. farrag1999@yahoo.com
authors.forename: M E F
authors.initials: ME
authors.lastname: Abdel-Haliem
authors.forename: A A
authors.initials: AA
authors.lastname: Sakr
authors.forename: M F
authors.initials: MF
authors.lastname: Ali
authors.forename: M F
authors.initials: MF
authors.lastname: Ghaly
authors.forename: C
authors.initials: C
authors.lastname: Sohlenkamp
mesh_terms: D004396:Coloring Agents / Q000378:metabolism*; D004269:DNA, Bacterial / Q000235:genetics; D004275:DNA, Ribosomal / Q000235:genetics; D000076144:Egypt, Ancient; D049690:History, Ancient; D008969:Molecular Sequence Data; D010150:Paint / Q000382:microbiology; D010151:Paintings / Q000266:history; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D013302:Streptomyces / Q000145:classification / Q000235:genetics / Q000302:isolation & purification* / Q000378:metabolism*
chemical_list: D004396:Coloring Agents; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S