| endophytic fungi from vitis labrusca l. ('niagara rosada') and its potential for the biological control of fusarium oxysporum. | we investigated the diversity of endophytic fungi found on grape (vitis labrusca cv. niagara rosada) leaves collected from salesópolis, sp, brazil. the fungi were isolated and characterized by amplified ribosomal dna restriction analysis, followed by sequencing of the its1-5.8s-its2 rdna. in addition, the ability of these endophytic fungi to inhibit the grapevine pathogen fusarium oxysporum f. sp herbemontis was determined in vitro. we also observed that the climatic factors, such as temperature ... | 2012 | 23315803 |
| a thiopyranchromenone and other chromone derivatives from an endolichenic fungus, preussia africana. | the first example of a naturally occurring thiopyranchromenone, preussochromone a (1), and five other new chromone derivatives, preussochromones b-f (2-6), were isolated from solid cultures of an endolichenic fungus, preussia africana. the structures of 1-6 were established primarily by nmr experiments, and 2 and 4 were further confirmed by x-ray crystallography. the absolute configurations of 1 and 2 were determined by the application of electronic circular dichroism (ecd), whereas those of c-5 ... | 2012 | 22324636 |