Lichens are traditionally defined as a symbiotic relationship between fungi and algae and/or cyanobacteria. This union forms unique structure called the thallus, which attaches to surfaces such rocks tree bark. Recent reports challenge view that lichens comprised of one fungus photobiont, instead suggest they consortium microbes. Much lichen biology remains unknown most our knowledge is limited...

Lichens cover nearly 7% of the earth’s surface and in eastern Canada, lichen woodlands occupy over 300,000 km2. Reindeer lichens (genus Cladonia), are main component they play a crucial role boreal forest ecology. We study, for first time, bacterial community four species reindeer from North America’s forests. Using 16S rRNA gene, we characterize 189 samples. aim to analyse effect host-identity...

Antibacterial activity of acetone, methanol and aqueous extract prepared from some lichen species were evaluated against five bacterial strains viz. Staphylococcus aureus, Escherichia coli, Vibrio cholerae, Shigella dysenteriae. Shigella flexneri The aqueous, methanol and acetone extracts exhibited a variable range of antibacterial activity to bacterial strains. The acetone and methanol extract...

In order to provide data for lichenologists studying taxonomy, Chaenothecopsis xishuiensis is supported and proposed as a new species from China based on phenotypic, molecular, metabolite data. It characterised by leprose thallus, single, conical hemispherical apothecia, nonbranching stipe, cylindrical, eight-spored asci, nonseptate brown spores, this lichenised fungus contains atranorin zeorin...

'Large' and 'small' fractions of laccase were found in the thalli of lichens Solorina crocea and Peltigera aphthosa. In both lichens, 'large', possibly dimeric, laccases were determined as 175 and 165 kDa (based on the gel filtration data), and 'small' ones were 76 and 97 kDa (according to sodium dodecyl sulfate-polyacrylamide gel electrophoresis data), respectively. By their substrate specific...

Fungal secondary compounds and total extracts are known to affect growth of bacteria, fungi, and plants. This study tested the effects of purified compounds and total extracts from three lichens on the growth of two plant pathogens, Ophiostoma novo-ulmi ssp. americana and Sclerotinia sclerotiorum. Usnic acid showed no reduction in relative growth rates (RGR), whereas vulpinic acid reduced RGR f...