Novel Tetrapeptides, Tengupeptins A and B, Produced by Lecanicillium aphanocladii FKI-9593 Fungal Strain.

The discovery of novel natural products through the exploration of distinct microorganisms is crucial for advancing drug discovery research. In this study, we focus on a unique environmental resource, microbial masses known as "Tengu-no-Mugimeshi." From the culture broth of Lecanicillium aphanocladii FKI-9593, isolated from Tengu-no-Mugimeshi collected at Mount Kurohime, Nagano Prefecture, Japan, we report the isolation of two novel tetrapeptides, tengupeptins A (1) and B (2), as well as the known compound oosporein.

comb. nov. () for (≡ ) inferred from phylogenetic evidence.

(≡ ), known as the mulberry rust which is an anamorphic rust fungus forming only aecidioid uredinia, were found on in Ibaraki and Saitama Prefectures, Japan. Molecular phylogenetic analyses using the combined dataset of sequences from 28S and 18S of the nuclear ribosomal RNA gene and Cytochrome-c-oxidase subunit 3 of the mitochondrial DNA revealed that this anamorphic rust fungus was a member of the clade composed of the genus . Therefore, a new combination, is proposed for this species.

(), a new species from evergreen broad-leaved forests in Japan.

, a new agaric species was described based on the specimens collected from evergreen broad-leaved forests in Japan. The present new species is distinct from , the type species of the genus by morphological characteristics and nuclear rDNA sequences. is characterized by its nodulose cystidium-like terminal elements of pileipellis, cylindrical to clavate pileocystidia with irregular excrescences, and dimorphic pleurocystidia.

, a new caricicolous rust fungus producing spermogonial and aecial stages on in Japan.

, a new species of caricicolous rust fungus was described based on morphological characteristics and nuclear rDNA sequences from Japan. The heteroecious life cycle of was elucidated via field observations, inoculation experiments and molecular analyses. This rust fungus produces uredinial and telial stages on and spermogonial and aecial stages on .

Taxonomic revision of the complex.

and the related fungi were separated into three biological species by morphological and physiological characteristics, as well as DNA sequences and mating reactions. We propose that the complex should be divided into three species (, and ) and two varieties ( var. and var.

Reviewing the world's edible mushroom species: A new evidence-based classification system.

Wild mushrooms are a vital source of income and nutrition for many poor communities and of value to recreational foragers. Literature relating to the edibility of mushroom species continues to expand, driven by an increasing demand for wild mushrooms, a wider interest in foraging, and the study of traditional foods. Although numerous case reports have been published on edible mushrooms, doubt and confusion persist regarding which species are safe and suitable to consume.