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5 articles found in Index.
SANTIAGO K.A.A., DELA CRUZ T.E.E., TING A.S.Y. (2021): Diversity and bioactivity of endolichenic fungi in Usnea lichens of the Philippines. [antibacterial, anticandidal, antioxidant, lichen-associated, Sagada.] Czech Mycology 73(1): 1-19 (published: 14th January, 2021) Electronic supplement
abstract
Endolichenic fungi (ELF; asymptomatic microorganisms living inside healthy lichen thalli) were isolated from three Usnea species, namely U. baileyi, U. bismolliuscula and U. pectinata, collected near the town of Sagada, Philippines. A total of 101 ELF were recovered representing 12 genera (classes Sordariomycetes and Eurotiomycetes), with the genera Nemania (50.5%, 51 isolates) and Xylaria (22.8%, 23 isolates) being the most abundant. Comparative analyses on the antimicrobial activities of lichens and ELF revealed that lichen crude extracts were effective against the Gram-positive bacterium Staphylococcus aureus and the yeast Candida albicans, while ELF crude extracts were effective against S. aureus, C. albicans and the Gram-negative bacterium Escherichia coli. The broad-spectrum nature of ELF has provided medicinal and industrial advantages over the slow-growing lichens as shown on their respective bioactivities. Extracts from ELF also had a higher total flavonoid content (TFC; 6.29–85.69 mg QE/g of extract) and stronger antioxidant activities (IC50: 0.57–19.63 mg/ml) than lichen-derived extracts. Although only culturable ELF were identified, this study provides the first evaluation of the diversity and bioactivities of culturable ELF from fruticose lichens of the genus Usnea in the Philippines.
HOLEC J., KŘÍŽ M., POUZAR Z., ŠANDOVÁ M. (2015): Boubínský prales virgin forest, a Central European refugium of boreal-montane and old-growth forest fungi. [Mt. Boubín, Bohemian Forest, Czech Republic, Basidiomycota, Ascomycota, diversity, ecology, distribution] Czech Mycology 67(2): 157-226 (published: 10th September, 2015)
abstract
Boubínský prales virgin forest is the best-preserved montane Picea-Fagus-Abies forest in the Czech Republic. Its core area (46.67 ha), grown with original montane forest never cut nor managed by foresters, has been protected since 1858. It represents the centre of the present-day nature reserve (685.87 ha). A detailed inventory of its fungal diversity was carried out in 2013–2014. Ten segments differing in habitat and naturalness were studied (235 ha). The total number of species was 659, with the centre of diversity in the core area (503 species) followed by the neighbouring segments grown by natural forests minimally influenced by man. When literature and herbarium data are added, the total diversity reaches a total of 792 taxa. The locality represents a unique refugium for some borealmontane fungi (e.g. Amylocystis lapponica, Laurilia sulcata, Pholiota subochracea), a high number of rare species preferring old-growth forests (Antrodia crassa, A. sitchensis, Baeospora myriadophylla, Chrysomphalina chrysophylla, Fomitopsis rosea, Ionomidotis irregularis, Junghuhnia collabens, Skeletocutis odora, S. stellae, Tatraea dumbirensis), wood-inhabiting and mycorrhizal fungi confined to Abies (Panellus violaceofulvus, Phellinus pouzarii, Pseudoplectania melaena, Lactarius albocarneus), and a high number of indicators of well-preserved Fagus forests (e.g.Climacodon septentrionalis, Flammulaster limulatus, Pholiota squarrosoides). Several very rare fungi are present, e.g. Chromosera cyanophylla, Cystoderma subvinaceum and Pseudorhizina sphaerospora. The value of the local mycobiota is further emphasised by the high number of protected and Red List species. Comparison with other Central European old-growth forests has confirmed that Boubínský prales is a mycological hotspot of European importance.
GÖNCZÖL J., RÉVAY Á. (2011): Aquatic hyphomycetes and other water-borne fungi in Hungary. [aquatic hyphomycetes, canopy fungi, Hungary] Czech Mycology 63(2): 133-151 (published: 10th August, 2011)
abstract
The history of research on aquatic hyphomycetes from various aquatic and terrestrial habitats in Hungary since the early 1900s is presented. Published and unpublished records of 117 species are listed, including those of some terrestrial hyphomycetes found in stream foam.
BÄRLOCHER F., STEWART M., RYDER D. (2011): Analyzing aquatic fungal communities in Australia: impacts of sample incubation and geographic distance of streams. [aquatic hyphomycetes, zoosporic fungi, spore production, aeration vs. static incubation, temperature, geographic distance] Czech Mycology 63(2): 113-132 (published: 10th August, 2011)
abstract
Fungal colonization of Eucalyptus viminalis exposed in three streams (two sites each) near Armidale (NSW Tablelands, Australia) was characterized by measuring reproduction from recovered leaves in aerated and static water. Spore production for zoosporic and mitosporic fungi increased by up to 220 % and 310 %, respectively, in aerated water. Percentage similarities of aquatic hyphomycete communities between pairs of aerated and static samples from the same stream averaged 67.5 %; similarities among samples from different streams averaged 50.3 %. Canonical Analysis of Principal Coordinates (CAP) revealed no significant difference between fungal communities of aerated vs. static treatments summarized over all sites. The fungal communities of substrates from an additional nine streams, primarily from the coast, were characterized in September, 2010. They were compared to those on E. viminalis leaves incubated for four weeks at the original six sites. CAP revealed a significant difference between tableland and coastal fungal communities. Percentage similarities correlated significantly with geographic distance of the streams (R2 = 0.13), their temperature (R2 = 0.46) and their altitude (R2 = 0.65).
GULIS V., SUBERKROPP K. (2003): The effect of excluding plant litter on the aquatic hyphomycete conidia in a headwater stream. [freshwater fungi, leaf litter, conidia concentration, community structure, seasonal patterns] Czech Mycology 54(3-4): 249-260 (published: 23rd May, 2003)
abstract
The concentrations and community structure of aquatic hyphomycete conidia in water were followed over a two-year period in two headwater streams at Coweeta Hydrologie Laboratory, NC, USA using the membrane filtration technique. Litter input into one stream was excluded for 6 years priorto and during the course of ourstudy whereas the reference stream received natural litter inputs during this time. This whole-stream substrate manipulation resulted in seasonal differences in maximum conidia concentrations in the two streams and shifts in dominant species or their rankings. However, total conidia concentrations were not significantly affected by the litter-exclusion treatment.
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