Skip to main content

Talaromyces disparis, Talaromyces funiformis and Talaromyces jianfengicus from soil established in sect. Tal.

Talaromyces disparis, Talaromyces funiformis and Talaromyces jianfengicus from soil established in sect. Tal.

NEWS - Talaromyces disparis (ex-type AS3.26221), Talaromyces funiformis (ex-type AS3.26220) and Talaromyces jianfengicus (ex-type AS3.26253) isolated from soil were established as three new species in sect. Talaromyces based on morphological characters and phylogenetic analysis of BenA, CaM, Rpb2 and ITS sequences.

Talaromyces species play important roles in nutrient cycling in natural ecosystems, plant biomass degradation in industry and implications in medicine. However, the diversity of this genus is far from being fully understood. The genus is currently divided into 8 sections (Bacillispori, Helici, Islandici, Purpurei, Subinflati, Talaromyces, Tenues and Trachyspermi).

In a survey of Talaromyces in China, researchers found five typical Talaromyces strains and proposed three new species represented by these strains included in sect. Talaromyces, which now includes about 90 species, is the largest section within Talaromyces and generally grows rapidly to clumps with a diameter of more than 30 mm on MEA.

The species in this section are usually phylogenetically distant, but some closely related taxa form species complexes and members of these species complexes are not easily distinguished from each other using morphology, especially micromorphology.

The researchers used a polyphasic taxonomy that combines morphological and phylogenetic characters to establish a new species based on a single strain, because this species is phylogenetically unique and morphologically clearly distinguishable from other species. The proposed three species were also confirmed by phylogenetic analysis of the BenA-CaM-Rpb2, BenA-CaM-ITS concatenations and the BenA, CaM, Rpb2, and ITS sequence matrices individually.

T. disparis is nicknamed on penicillins in various patterns and conidia of various shapes and dimensions. The taxon is characterized by low growth, velvety texture and limited to moderate sporulation. Penicillates are biverticulate, monoverticulate, irregular and have polymorphic smooth-walled conidia with some abnormally large round conidia.

T. disparis is a unique species with no close relatives in Talaromyces based on phylogenetic analysis and no bootstrap support provided, although it is in a clade with T. intermedius, T. viridis and T. panamensis in the BenA-CaM-Rpb2 phylogram

T. funiformis is named for its funiculose appearance on CYA, MEA and YES. This taxon is included in the T. pinophilus complex. The species produces mycelial funicules on CYA, MEA and YES. Sporulation is rare on Cz, CYA, MEA and YES but abundant on OA. Growth rate is low at 37°C. Penicillates are biverticulate and conida are round to pyriform with smooth to rough walls.

T. jianfengicus is given its specific epithet in reference to the location where the ex-type strain was isolated. This species belongs to the T. verruculosus complex which includes T. johnpittii, T. stellenboschiensis, T. yunnanensis, and T. verruculosus. These members generally grow moderately to rapidly on MEA, YES, and OA.

T. jianfengicus is characterized by velvety colony texture with moderately to abundant elm green conidia and green-yellow mycelium, biverticulate penicillata, ampulliform phialids, and spherical conidia with verrucous walls.

Original research

Ren X, Li S, Ruan Y, Wang L. 2024. Three new species of Talaromyces sect. Talaromyces discovered in China. PeerJ 12:e18253, DOI:10.7717/peerj.18253

Dlium theDlium
Labels:

Popular Posts

Humpback whales (Megaptera novaeangliae) manufacture bubble-nets as tools to increase prey intake

NEWS - Humpback whales ( Megaptera novaeangliae ) create bubble net tools while foraging, consisting of internal tangential rings, and actively control the number of rings, their size, depth and horizontal spacing between the surrounding bubbles. These structural elements of the net increase prey intake sevenfold. Researchers have known that humpback whales create “bubble nets” for hunting, but the new report shows that the animals also manipulate them in a variety of ways to maximize catches. The behavior places humpbacks among the rare animals that make and use their own tools. “Many animals use tools to help them find food, but very few actually make or modify these tools themselves,” said Lars Bejder, director of the Marine Mammal Research Program (MMRP), University of Hawaii at Manoa. “Humpback whales in southeast Alaska create elaborate bubble nets to catch krill. They skillfully blow bubbles in patterns that form a web with internal rings. They actively control details such ...
Read more

Red costate tiger moth (Aloa lactinea)

Red costate tiger moth ( Aloa lactinea ) is an animal species in the Erebidae, a moth with a wingspan of 40 mm, a yellow belly, black antennae with red basalt joints, dark red palpi on the sides and white below, black terminal joints, living in forests and agriculture in the lowlands to mountainous areas. A. lactinea has a white head with a red stripe on the back. Thorax is white. The wings are predominantly white in color with black dots on each corner of the cells and a red margin. The wings have branched pulse lines and a starchy surface. The wing-covered upper abdomen is black with large elliptical plots and is colored yellow forming cells. The lower abdomen is white and has fine hairs that fall out easily. A pair of antennas is black. The forelegs are red, white and black. The other legs are white on the top and black on the bottom. The final joints are white and black which form alternating rings. Tip and sole black all over. The larvae are black in color with a lateral crest ...
Read more

Javanese grasshopper (Valanga nigricornis)

Wooden grasshopper or Javanese grasshopper ( Valanga nigricornis ) is an animal species of Acrididae, grasshoppers that have at least 18 subspecies, insects with very wide diversity in color and size, sexual dimorphism in which females are larger in size and paler in color. V. nigricornis in males has a length of 45-55 millimeters and females 15-75 mm. The head is square and green or yellow or brown or black in color. A pair of antennas has a black color. The eyes are large and gray or white or brownish. The hind legs are very large and have a green or yellow or brown or black color, plain or brindle. The limbs have two rows of large and long spines with black tips facing backward. The wings have a length exceeding the belly, a rough surface and are brown or green or yellow or black in color with pulse lines forming spaces filled with black color. The hind wings are rose red which will be visible when flying. Nymphs are pale green or yellow or brown or blackish in color. Javanese gr...
Read more