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SOLORINA":
4 articles found in Index.
KOCOURKOVÁ J., KNUDSEN K. (2009): A new species of Stigmidium (Mycosphaerellaceae, Ascomycetes) from western North America. [California, lichenicolous fungi, Mexico, Mycosphaerella, systematics, taxonomy] Czech Mycology 61(1): 73-80 (published: 29th September, 2009)
abstract
The new lichenicolous fungus Stigmidium hesperium is described from Caloplaca species from western North America.
VACCARO G., BENNETT J.W. (1999): Norsolorinic acid mutants and aflatoxin research. [norsolorinic acid, aflatoxins, polyketides, Aspergillusflavus, Aspergillus parasiticus] Czech Mycology 51(2-3): 89-97 (published: 25th May, 1999)
abstract
Norsolorinic acid is a red polyhydroxyanthraquinone. Mutants of Aspergillus parasiticus and Aspergillus flavus that accumulate norsolorinic acid, as well as making low levels of aflatoxin, have been used to study aflatoxin biosynthesis and aflatoxin genetics. In physiological studies the red color of norsolorinic acid serves as a visual screen for the putative presence of aflatoxin. In biosynthetic studies using ¹⁴C-radioisotope labeling, norsolorinic acid is the first stable intermediate detected in the pathway. By complementation of suitable marked strains, and selection for red pigment, the gene for the enzyme associated with norsolorinic acid became the first gene cloned from the aflatoxin pathway. Gene disruption confirmed the role of norsolorinic acid as an aflatoxin precursor. Several laboratories have partially purified an enzyme that catalyzes the transformation of norsolorinic acid to other pigments. It is proposed that double mutants of A. nidulans, lacking both norsolorinic acid production and another secondary metabolite, can be used to screen for regulatory genes of the aflatoxin/sterigmatocystin pathway.
HORÁKOVÁ J. (1994): Arthonia pragensis spec. nov. (Ascomycetes, Arthoniales), a new lichenicolous fungus from the Czech Republic. [Arthonia, lichenicolous fungi, Czech Republic, taxonomy] Czech Mycology 47(2): 139-143 (published: 15th March, 1994)
abstract
Arthonia pragensis Horáková, a new lichenicolous fungus (Ascomycetes, Arthoniales) is described from xerothermic area growing on diabase rocks in Prague in the Czech Republic. This is also the first published report of a lichenicolous fungus from the territory of Prague.
MOSER-ROHRHOFER M. (1969): Wachstumszonen des vegetativen Flechtenthallus und des Ascophors einiger Flechtenpilze. Česká Mykologie 23(1): 15-23 (published: 1969)
abstract
The paper presents anatomical observations of the vegetative lichen thallus and the apothecia of several lichen species (e.g., Usnea barbata, Racodium, Solorina saccata, Thelotrema lepadinum, Parmelia, Lecanora, Alectoria, Ramalina fraxinea). Growth patterns, tissue types, and the arrangement of photobionts are discussed in detail.
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