| fungal endogenous rhythms expressed by spiral figures. | culture zonations in two fungi, nectria cinnabarina and penicillium diversum, are expressions of endogenous rhythms. these culture zonations may take the form of either concentric rings or archimedes' spirals. the rhythm in n. cinnabarina is noncircadian. the rhythm in p. diversum is relatively insensitive to temperature and has a period of approximately 24 hours. the lack of a demonstrable mechanism for phase shifting suggests that this rhythm may also be noncircadian. | 1969 | 5823318 |
| 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 |
| phylogenetic relationships of the soybean sudden death syndrome pathogen fusarium solani f. sp. phaseoli inferred from rdna sequence data and pcr primers for its identification. | phylogenetic relationships of several species within the fusarium solani-complex were investigated using characters from the nuclear ribosomal dna. genetic variation within 24 isolates, including 5 soybean sudden death syndrome (sds) strains, was assessed using rdna sequence data and restriction fragment length polymorphic markers. by these techniques, the causal agent of soybean sds was identified as f. solani f. sp. phaseoli. in separate cladistic analyses, plectosphaerella cucumerina and nect ... | 1995 | 7579615 |
| comparison of cell-wall polysaccharides from nectria cinnabarina with those from the group of nectria with sesquicillium anamorphs. | alkali-extractable and water-soluble polysaccharides were purified from cell walls of five species of sesquicillium or its teleomorphs, nectria lasiacidis and nectria impariphialis, and from nectria cinnabarina, the type species of nectria, a heterogeneous genus that belongs to the hypocreales. methylation and nmr analyses for determination of linkage types and structure were performed and indicated differences between the polysaccharides purified during the present study and those isolated from ... | 2001 | 11429461 |
| isolation of wood-inhabiting fungi from canadian hardwood logs. | wood-inhabiting fungi include many molds, wood-staining fungi, and decay fungi. most of these fungal species can result in economic losses to wood users. studies on molds, staining fungi, and decay fungi are necessary to be able to control their growth on wood and wood products. in this study, wood-inhabiting fungi were isolated from logs of 3 major canadian hardwood species: sugar maple, white birch, and yellow birch. two media were used for isolation. from these 3 wood species, a total of 1198 ... | 2005 | 15782228 |
| modification of the period of a noncircadian rhythm in nectria cinnabarina. | the sporulation rhythm in nectria cinnabarina tode ex fr. is expressed by either concentric rings or spirals. the period is inversely proportional to the temperature and does not approach 24 hours; the rhythm is therefore noncircadian. the period of the zonation rhythm is lengthened by culturing the fungus on a dialysis membrane over the agar surface, on media solidified with an increased amount of agar, or on media containing deuterium oxide. these observations suggest that the transfer of mate ... | 1971 | 16657684 |
| a morphological and phylogenetic revision of the nectria cinnabarina species complex. | the genus nectria is typified by n. cinnabarina, a wood-inhabiting fungus common in temperate regions of the northern hemisphere. to determine the diversity within n. cinnabarina, specimens and cultures from asia, europe, and north america were obtained and examined. their phylogeny was determined using sequences of multiple loci, specifically act, its, lsu, rpb1, tef1, and tub. based on these observations, four species are recognised within the n. cinnabarina complex. each species is delimited ... | 2011 | 21523188 |