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HEMIMYCENA|cucullata":
4 articles found in Index.
MALYSHEVA E.F., MOROZOVA O.V. (2009): Notes on Hemimycena from European Russia. [Agaricales, Hemimycena, new species, European Russia, taxonomy] Czech Mycology 61(1): 27-71 (published: 29th September, 2009)
abstract
A study of the genus Hemimycena in European Russia has revealed 19 taxa. Ten species are recorded for the first time in this territory and three new species (Hemimycena globulifera, H.stiriispora, and H. tanjae) are proposed. All species examined are described in detail and fully illustrated. Also a identification key to delimit the studied species is provided.
LAGANÀ A., SALERNI E., BARLUZZI C., PERINI C., DE DOMINICIS V. (2000): Mycocoenological studies in Mediterranean forest ecosystems: calcicolous deciduous oak woods of central-southern Tuscany (Italy). [mycocoenology, calcicolous deciduous oak woods, Mediterranean] Czech Mycology 52(1): 1-16 (published: 21st January, 2000)
abstract
The results of mycocoenological studies carried out in calcicolous deciduous oak woods of central-southern Tuscany are reported. Comparison with there sults of studies in other for est ecosystems of the same area revealed exclusive differential species of deciduous oak woods and clarified the knowledge on mycocoenoses of central-southern Tuscany. The obtained in formation on individual species is also useful for understanding the relatively unexplored field of the ecology of macrofungi.
STERNER O., ANKE H. (1995): Toxic terpenoids isolated from higher fungi. [Terpenoids, toxicity, biological activity, higher fungi, Basidiomycotina] Czech Mycology 48(1): 39-52 (published: 16th May, 1995)
abstract
A large number of toxic terpenoids have been isolated from cultures and fruit bodies of higher fungi. The chemistry, biological activity and possible natural functions of some of the m are discussed in this paper. Especially interesting in this respect are natural defensive compounds that possess for example antibiotic and antifeedant activies and are likely to be toxic. The sesquiterpenoids of the pungent Lactarius species (e.g. L. necator, L. piperatus, L. rufus and L. vellereus) constitute an interesting example of this. In the fruit bodies of these species within seconds after an physical injury, an apparently inactive precursor is converted enzymatically into a range of pungent sesquiterpenes with an unsaturated dialdehyde functionality possessing potent antimicrobial and cytotoxic activities. The injury brings the precursor, which is present as an emulsion in the latex of specialised hyphae of the fruit bodies, in contact with the enzyme systems that are kept apart in the intact fruit body. Fruit bodies of non-pungent and edible Lactarius species (e.g. L. deliciosus and L. flavidulus) contain precursors with completely different chemical structures that also are converted as a response to injury, although to products with less striking biological activities and with uncertain function.
KOTLABA F. (1981): Excursio mycologorum Bohemicorum in Karlštejn anno 1980. Česká Mykologie 35(2): 108-111 (published: 1981)
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