| construction and characterization of a dna probe for distinguishing strains of aspergillus flavus. | repetitive dna sequences have proven useful and reliable characters in evaluating genetic relatedness of strains at different levels of taxonomic classification. a dna probe was constructed to distinguish among strains of aspergillus flavus by dna fingerprinting techniques. chromosomal dna of a. flavus var. flavus nrrl 6541 was partially digested with ecori and ligated to a lambda dash bacteriophage vector. four lambda clones were identified which displayed multiple and distinct bands when hybri ... | 1995 | 7793909 |
| psychrophilic and mesophilic fungi in fruit-filled pastries. | surveys of the mold flora of frozen blueberry and cherry pastries were undertaken. molds were enumerated by preparing pour plates of the blended product and incubating the plates at 0, 5, 10, and 20 c. in this manner, the total fungal content of the product could be ascertained from the 10 and 20 c plates, and the psychrophilic fungal population was represented by those fungi which grew at 0 and 5 c. the pastry portion, or crust, of the blueberry material was sampled separately from the filling ... | 1962 | 14460237 |
| a caps test allowing a rapid distinction of penicillium expansum among fungal species collected on grape berries, inferred from the sequence and secondary structure of the mitochondrial ssu-rrna. | penicillium expansum is a fungal species highly damageable for the postharvest conservation of numerous fruits. in vineyards, this fungus is sometimes isolated from grape berries where its presence may lead to the production of geosmin, a powerful earthy odorant, which can impair grapes and wines aromas. however, the discrimination of p. expansum from related fungi is difficult because it is based on ambiguous phenotypic characters and/or expensive and time-consuming molecular tests. in this con ... | 2006 | 16935376 |
| application of classification-tree models to characterize the mycobiota of grapes on the basis of origin. | classification-tree (ct) models are a simple and robust exploratory data analysis technique that can be used in classification, regressions and summaries of data. they distill complex ecological relationships into simplified rules and identify the species necessary for sample classification on the basis of detailed ecological inventories. the usefulness of this technique to characterize and represent differences in the grape mycobiota of distinct origins was evaluated. grapes from four portugues ... | 2006 | 17196024 |
| plant community influences on soil microfungal assemblages in boreal mixed-wood forests. | we studied the relationships between assemblages of soil microfungi and plant communities in the southern boreal mixed-wood forests of quebec. sampling took place in 18,100 m2 plots from an existing research site. plots were separated into three categories based on dominant overstory tree species: (i) trembling aspen, (ii) white birch and (iii) a mixture of white spruce and balsam fir. within each plot a 1 m2 subplot was established in which the understory herbaceous layer was surveyed and soil ... | 2007 | 17883027 |
| similarity among plant growth inhibitors produced by penicillium thomii, p. oxalicum and byssochlamys nivea. | | 1964 | 14152809 |
| effect of an arbuscular mycorrhizal fungus, glomus mosseae, and a rock-phosphate-solubilizing fungus, penicillium thomii, on mentha piperita growth in a soilless medium. | rock phosphate effect on english mint (mentha piperita l.) grown on steamed perlite:vermiculite (1:1, v:v) substrate, with and without rock phosphate, was evaluated in greenhouse experiments. five treatments were carried out by inoculation with an arbuscular mycorrhizal fungus glomus mosseae and a phosphorus solubilizing microorganism penicillium thomii. plant aerial biomass, phosphorus concentration in plant tissue, and p available in the substrate, were evaluated upon two harvests. after the f ... | 2005 | 15900540 |
| [combination of phosphorus solubilizing and mobilizing fungi with phosphate rocks and volcanic materials to promote plant growth of lettuce (lactuca sativa l.)]. | arbuscular mycorrhizal fungi (amf) increase the uptake of soluble phosphates, while phosphorus solubilizing fungi (s) promote solubilization of insoluble phosphates complexes, favoring plant nutrition. another alternative to maintaining crop productivity is to combine minerals and rocks that provide nutrients and other desirable properties. the aim of this work was to combine amf and s with pyroclastic materials (ashes and pumices) from puyehue volcano and phosphate rocks (pr) from rio chico gro ... | 2017 | 28893530 |
| zosteropenillines: polyketides from the marinederived fungus penicillium thomii. | twelve new polyketides, zosteropenillines a-l (1-12), together with known polyketide pallidopenilline a (13), were isolated from the ethylacetate extract of the fungus penicillium thomii associated with the seagrass zostera marina. their structures were established based on spectroscopic methods. the absolute configuration of zosteropenilline a (1) as 4r, 5s, 8s, 9r, 10r, and 13s was determined by a combination of the modified mosher's method, x-ray analysis, and noesy data. absolute configurati ... | 2017 | 28218691 |
| pallidopenillines: polyketides from the alga-derived fungus penicillium thomii maire kmm 4675. | eleven new polyketides, pallidopenillines 1-11, were isolated from the alga-derived fungus penicillium thomii. the structures of these compounds were established based on spectroscopic methods. the absolute configuration of pallidopenilline a (1) as 4r, 5s, 8s, 9r, 10r, 13r was established using a combination of the modified mosher's method, x-ray analysis, and noesy data. the absolute configurations of 2-5 were determined by time-dependent density functional theory calculations of the ecd spect ... | 2016 | 28006908 |
| sargassopenillines a-g, 6,6-spiroketals from the alga-derived fungi penicillium thomii and penicillium lividum. | seven new 6,6-spiroketals, sargassopenillines a-g (1-7) were isolated from the alga-derived fungi penicillium thomii kmm 4645 and penicillium lividum kmm 4663. the structures of these metabolites were determined by hr-ms and 1d and 2d nmr. the absolute configurations of compounds 1, 5 and 6 were assigned by the modified mosher's method and by cd data. sargassopenilline c (3) inhibited the transcriptional activity of the oncogenic nuclear factor ap-1 with an ic50 value of 15 µm. | 2014 | 25501795 |
| meroterpenoids from the alga-derived fungi penicillium thomii maire and penicillium lividum westling. | ten new austalide meroterpenoids (1-10) were isolated from the alga-derived fungi penicillium thomii kmm 4645 and penicillium lividum kmm 4663. their structures were elucidated by extensive spectroscopic analysis and by comparison with related known compounds. the absolute configurations of some of the metabolites were assigned by the modified mosher's method and cd data. compounds 1, 2, 8, and 9 were able to inhibit ap-1-dependent transcriptional activity in jb6 cl41 cell lines at noncytotoxic ... | 2014 | 24852445 |
| effect of copper-induced oxidative stress on sclerotial differentiation and antioxidant properties of penicillium thomii pt95 strain. | penicillium thomii pt95 strain was able to form abundant orange, sand-shaped sclerotia in which carotenoids were accumulated. the aim of this work was to determine the effects of copper-induced oxidative stress on the sclerotial differentiation and antioxidant properties of pt95 strain. the results showed that the time of exudates initiation, sclerotial initiation and sclerotial maturation of pt95 strain were advanced in 1-2 days under the copper-induced oxidative stress growth conditions. the a ... | 2014 | 24307499 |
| effect of copper-induced oxidative stress on sclerotial differentiation and antioxidants contents of penicillium thomii q1. | penicillium thomii q1 strain was able to form abundant orange, sand-shaped sclerotia in which carotenoids were accumulated. the aim of this work was to determine the effects of copper-induced oxidative stress on the sclerotial differentiation, biosynthesis of some endogenous antioxidants, and the activities of some antioxidative enzymes of q1 strain. the results showed that the oxidative stress induced by copper was clearly dependent on the cuso4 concentrations in media, and characterized by the ... | 2014 | 24002994 |
| [chemical constituents from marine fungus penicillium thomii]. | to investigate the bioactive constituents from the mycelium of penicillium thomii. which isolated from anemone collected in qingdao beach. | 2002 | 12579822 |
| translocatable plant growth inhibitors produced by penicillium thomii and arachniotus trisporus. | | 1957 | 16654943 |