Related Experiment Video
Updated: Jul 3, 2026
08:42
Infection of In Vivo and In Vitro Pines with the Pinewood Nematode Bursaphelenchus xylophilus and Isolation of Induced Volatiles
Published on: September 27, 2024
Cryptococcus pinus sp. nov., an anamorphic basidiomycetous yeast isolated from pine litter
Wladyslav I Golubev1, Ilona Pfeiffer, Maria A Tomashevskaya
1Russia Collection of Microorganisms VKM, Institute for Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, Russia. wig@ibpm.pushchino.ru
Summary
A new yeast species, Cryptococcus pinus, was discovered on dead pine needles. This finding expands our understanding of fungal biodiversity in forest ecosystems.
Area of Science:
- Mycology
- Fungal Taxonomy
- Plant Pathology
Background:
- The genus Cryptococcus comprises diverse yeasts with various ecological roles.
- Identification and classification of novel fungal species are crucial for understanding microbial diversity.
- Forest ecosystems harbor a vast, yet underexplored, fungal community.
Purpose of the Study:
- To identify and characterize a novel yeast species isolated from Pinus sylvestris needles.
- To determine the phylogenetic placement of the novel species within the Tremellales order.
Main Methods:
- Isolation of yeast from dead Pinus sylvestris needles.
- Mycocinotyping for phenotypic characterization.
- Ribosomal DNA (rDNA) sequence analysis for molecular identification.
- Phylogenetic analysis to ascertain evolutionary relationships.
Main Results:
- A novel Cryptococcus species, named Cryptococcus pinus sp. nov., was identified.
- Phylogenetic analysis placed the new species within the Kwoniella clade.
- The novel species is closely related to Cryptococcus dejecticola.
- The type strain is VKM Y-2958T (=CBS 10737T).
Conclusions:
- Cryptococcus pinus represents a newly described yeast species from a forest environment.
- Its phylogenetic position highlights evolutionary connections within the Kwoniella clade.
- This discovery contributes to the growing knowledge of fungal diversity associated with coniferous trees.
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