A phylogenetic and morphological overview of sections Bohusia, Sanguinolenti, and allied sections within Agaricus subg. Pseudochitonia with three new species from France, Iran, and Portugal.

The genus Agaricus was recently rearranged to accommodate numerous tropical taxa. Accordingly, the genus was split into six subgenera and 22 sections of which 12 are included in A. subg.

Endophytic bacteria take the challenge to improve Cu phytoextraction by sunflower.

Endophytic bacteria from roots and crude seed extracts of a Cu-tolerant population of Agrostis capillaris were inoculated to a sunflower metal-tolerant mutant line, and their influence on Cu tolerance and phytoextraction was assessed using a Cu-contaminated soil series. Ten endophytic bacterial strains isolated from surface-sterilized A. capillaris roots were mixed to prepare the root endophyte inoculant (RE).

A molecular contribution to the assessment of the Tricholoma equestre species complex.

In recent years, interest in the Tricholoma equestre species complex has increased because of several cases of severe and sometimes fatal rhabdomyolysis reported in France and Poland. These occurred after repeated consumption of large portions of T. equestre sporophores during consecutive meals, despite the fact that this species is renowned as a tasty edible wild mushroom.

Agaricus section Xanthodermatei: a phylogenetic reconstruction with commentary on taxa.

Agaricus section Xanthodermatei comprises a group of species allied to A. xanthodermus and generally characterized by basidiomata having phenolic odors, transiently yellowing discolorations in some parts of the basidiome, Schaeffer's reaction negative, and mild to substantial toxicity. The section has a global distribution, while most included species have distributions restricted to regions of single continents.

Morphological and molecular characterization of two novel species of Agaricus section Xanthodermatei.

Agaricus specimens collected in France belong to two novel entities resembling small forms of A. moelleri and A. xanthodermus, two common species in section Xanthodermatei.

A novel homothallic variety of Agaricus bisporus comprises rare tetrasporic isolates from Europe.

Among 400 wild specimens of A. bisporus collected in Europe, only three were tetrasporic. In the case of two of them from France, a previous study showed that one was homokaryotic and hypothetically belonged to a homothallic entity while the other was heterokaryotic and possibly resulted from hybridization between a member of this entity and a classical bisporic strain.