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In vitro antifungal activity of phenylheptatriyne from Bidens cernua L. (Asteraceae) was studied using broth macrodilution method… Expand Alpha-terthienyl (α-T), a naturally occurring polyacetylene derivative from roots ofTagetes erecta L., and phenylheptatriyne (PHT… Expand The dried aerial parts of Bidens pilosa L. were extracted with petrol ether, chloroform, methanol, and methanol/water. The petrol… Expand Genes controlling carotenoid synthesis were cloned from Erwinia herbicola and expressed in an Escherichia coli strain… Expand Abstract— Murine cytomegalovirus, a herpes virus, was used as a model virus to investigate the mechanism of the anti‐viral action… Expand Abstract— Phenylheptatriyne (PHT) is a good singlet oxygen sensitizer in vitro. In vivo, its phototoxicity toward E. coli B has… Expand Abstract The mechanism of action of the phototoxic polyacetylene phenylheptatriyne (PHT) against viruses was investigated. For… Expand The photosensitizing action of 7-phenylhepta-2,4,6-triyne (PHT), a polyacetylenic compound isolated from Bidens pilosa L… Expand The tropical weed Bidens pilosa L. (Asteraceae) contains a number of polyacetylenes which are phototoxic to bacteria, fungi, and… Expand In our laboratory, naturally occurring polyacetylenes and thiophene derivatives of the Asteraceae (Compositae) have been found to… Expand