| phylogenetic ordinal placement based on rdna sequences of the freshwater genera ophioceras and pseudohalonectria. | the ordinal placement of two closely related freshwater genera, ophioceras and pseudohalonectria, was assessed by using phylogenetic analysis of morphological characters, partial sequences of the large subunit ribosomal dna and restriction site variations in the internal transcribed spacer (its). the two genera have some morphological features that are used to define taxa in both the sordariales and diaporthales, and, hence, their phylogenetic relationships are unclear. equally weighted analyses ... | 1995 | 7553269 |
| cytotoxic cytochalasin metabolites of endophytic endothia gyrosa. | in addition to the known metabolites cytochalasin h (1), cytochalasin j (2), and epoxycytochalasin h (3), two new 10-phenyl-(11)-cytochalasans, named cytochalasin z10 and z11 (4 and 5, resp.) were isolated from the solid substrate culture of endothia gyrosa ifb-e023, an endophytic fungus residing inside the healthy leaf of vatica mangachapo (dipterocarpaceae). the structure determination of 4 and 5 was accomplished through correlative analyses of their spectral data (uv, esi-ms, ir, (1)h- and (1 ... | 2009 | 19479839 |
| phylogenetic relationships of cryphonectria and endothia species, based on dna sequence data and morphology. | the fungal genera endothia and cryphonectria include some of the most important pathogens of forest trees. despite available new technology, no comprehensive comparative study based on dna sequence data and morphology has been done on the available isolates representing these two genera. the main objectives of this study were to assess the phylogenetic relationships among species of cryphonectria and endothia, for which cultures are available, and to establish a taxonomic framework based on dna ... | 2004 | 21148920 |