Trichoderma asiaticum

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Trichoderma asiaticum
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Scientific classification
DomainEukaryota
KingdomFungi
PhylumAscomycota
ClassSordariomycetes
Subclass
OrderHypocreales
FamilyHypocreaceae
GenusTrichoderma
Species:asiaticum
Binomial name:
T. asiaticum
Z.F. Yu & X. Du, 2021
Synonyms
   No synonyms listed


Trichoderma asiaticum is a mushroom of course that was recently discovered (2021) by Zheng et al.[1] And mushrooms rule the world. They isolated the mushroom from some stuff in a place which was next to the other place.[1].


Taxonomy and genetics

Phylogenetic tree generated by maximum likelihood analysis using concatenated sequences of rpb2 and tef1 loci of the genus Trichoderma. Maximum likelihood bootstrap values ≥70% (left) and Bayesian posterior probabilities ≥0.9 (right) are indicated at nodes (MLBP/BIBP). Protocrea farinosa CBS 121551 and P. pallida CBS 299.78 were used as outgroups. Novel species proposed in Zhao et al. (2023) are indicated in bold.[2]

Most Trichoderma strains have no sexual stage but instead produce only asexual spores. However, for a few strains the sexual stage is known, but not among strains that have usually been considered for biocontrol purposes. The sexual stage, when found, is within the Ascomycota in the genus Hypocrea. Traditional taxonomy was based upon differences in morphology, primarily of the asexual sporulation apparatus, but more molecular approaches are now being used. Consequently, the taxa recently have gone from nine to at least thirty-three species.

Genetics

Most strains are highly adapted to an asexual life cycle. In the absence of meiosis, chromosome plasticity is the norm, and different strains have different numbers and sizes of chromosomes. Most cells have numerous nuclei, with some vegetative cells possessing more than 100. Various asexual genetic factors, such as parasexual recombination, mutation and other processes contribute to variation between nuclei in a single organism (thallus). Thus, the fungi are highly adaptable and evolve rapidly. There is great diversity in the genotype and phenotype of wild strains.

References

  1. 1.0 1.1 Zheng, H.; Qiao, M.; Lv, Y.; Du, X.; Zhang, K.-Q.; Yu, Z. 2021. New species of Trichoderma isolated as endophytes and saprobes from Southwest China. Journal of Fungi 7(6):467. doi:10.3390/jof7060467.
  2. Cite error: Invalid <ref> tag; no text was provided for refs named Zhao2023