Peru produces coffees of different qualities because it has very diverse ecosystems, the production of specialty coffees is an opportunity for economic and social improvement for small producers considering that the price of coffee is related to the sensory quality of the drink in ever larger market niches. In this study, the effect of the physical-chemical characteristics of the soil and the altitude of the farms on the sensory quality of coffee was evaluated in 56 high-altitude coffee farms in agroforestry systems of the upper jungle of Cusco, the physical and chemical characterization was carried out of the soils of farms located between 1312 and 1910 meters above sea level in the Tunquimayo - Quellouno - Cusco area and the sensory quality of the coffee was evaluated using SCAA methodology. It was found that the acidity and the aluminum concentration of the soils increases with altitu...

Peru produces coffees of different qualities because it has very diverse ecosystems, the production of specialty coffees is an opportunity for economic and social improvement for small producers considering that the price of coffee is related to the sensory quality of the drink in ever larger market niches. In this study, the effect of the physical-chemical characteristics of the soil and the altitude of the farms on the sensory quality of coffee was evaluated in 56 high-altitude coffee farms in agroforestry systems of the upper jungle of Cusco, the physical and chemical characterization was carried out of the soils of farms located between 1312 and 1910 meters above sea level in the Tunquimayo - Quellouno - Cusco area and the sensory quality of the coffee was evaluated using SCAA methodology. It was found that the acidity and the aluminum concentration of the soils increases with altitu...

The thread blight disease (TBD) of cacao (Theobroma cacao) in the department of Amazonas, Peru was recently reported to be caused by Marasmius tenuissimus (Sect. Neosessiles). This same species is known to be the main causal agent of TBD in West Africa. However, some morphological characteristics, such as the presence of rhizomorphs, the almost exclusively white color, and pileus sizes less than 5 mm, among others, differ to the description of M. tenuissimus. Therefore, we aimed to conduct a taxonomic revision of the cacao-TBD causal agent in Peru, by using thorough micro and macro morphological, phylogenetic, and nuclear and mitochondrial genomic approaches. We showed that the causal agent of TBD of cacao in Amazonas, Peru, belongs to a new species, Marasmius infestans sp. nov. This study enriches our knowledge of species in the Sect. Neosessiles, and strongly suggests that the M. tenui...