Polyphasic taxonomy of the genus Talaromyces

Abstract

The genus Talaromyces was described by Benjamin in 1955 as a sexual state of Penicillium that produces soft walled ascomata covered with interwoven hyphae. Phylogenetic information revealed that Penicillium subgenus Biverticillium and Talaromyces form a monophyletic clade distinct from the other Penicillium subgenera. Subsequently, in combination with the recent adoption of the one fungus one name concept, Penicillium subgenus Biverticillium was transferred to Talaromyces. At the time, the new combinations were made based only on phylogenetic information. As such, the aim of this study was to provide a monograph on Talaromyces applying a polyphasic species concept, including morphological, molecular and physiological characters. Based on an ITS, BenA and RPB2 multigene phylogeny, we propose a new sectional classification for the genus, placing the 88 accepted species into seven sections, named sections Bacillispori, Helici, Islandici, Purpurei, Subinflati, Talaromyces and Trachyspermi. We provide morphological descriptions for each of these species, as well as notes on their identification using morphology and DNA sequences. For molecular identification, BenA is proposed as a secondary molecular marker to the accepted ITS barcode for fungi.

Heterologous Production of Fungal Maleidrides Reveals the Cryptic Cyclization Involved in their Biosynthesis

“…Two BGCs were identified from Talaromyces stipitatus . Many Talaromyces species are known to produce glaucanic acid ( 2 ), as well as the more complex rubratoxin B (5 ) 15. A third BGC was identified in a Cochliobolus species.…”

Frecuencia de los hongos asociados al desarrollo de mohos poscosecha en el pedúnculo de la piña en dos zonas de Costa Rica

“…Cabe destacar que el género Talaromyces, que originalmente fue descrito como el teleomorfo del género Penicillium, actualmente cuenta con 88 especies, entre las que se incluye T. calidicanius (Yilmaz et al 2014), recuperado con alta frecuencia en el pedúnculo y cáscara de ambas zonas. La presencia de esta especie en frutos de piña es un aspecto que podría tener influencia en el manejo poscosecha de los mohos, ya que sexualmente podría generar una mayor variabilidad e influir en la resistencia del hongo a tratamientos como el uso de fungicidas, aspecto que según indican McDonald y Linde (2002), se ve favorecido en aquellos patógenos que combinan ambas estrategias de reproducción.…”

Four novel Talaromyces species isolated from leaf litter from Colombian Amazon rain forests

“…ITS, CaM and BenA gene regions were amplified and sequenced using previously described methods Yilmaz et al 2014).…”

“…Biverticillium to Talaromyces. The Talaromyces monograph of Yilmaz et al (2014) covered 88 species, and the genus currently includes 103 species (Visagie et al 2015;Romero et al 2016;Wang et al 2016;Yilmaz et al 2016).…”