The Temperature Relationship of Batrachochytrium dendrobatidis

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Introduction

Composite line drawing of a longitudinal section of a Batrachochytrium dendrobatidis zoospore.[1]


By [Eva Brazer]


Amphibian species around the world are experiencing unprecedented population decline due to the emerging infectious disease chytridiomycosis, which is caused by the chytrid fungus Batrachochytrium dendrobatidis (Bd).[2] The chytrid pathogen is considered an emerging infectious disease because it was discovered and described only in the last twenty years, and has continued to spread globally causing devastating effects.[3] Batrachochytrium dendrobatidis has been documented in hundreds of amphibian species, and reports of infection in new species and geographic locations continue to accumulate rapidly.[4]


Phylogeny

Phylogeny and classification of the genus Batrachochytrium. Cladogram showing the taxonomic position of Batrachochytrium dendrobatidis and Batrachochytrium salamandrivorans within the fungal kingdom (a), the phylum Chytridiomycota (b) and order of the Rhizophydiales (c). [5]


Scientific classification

Kingdom: Fungi
Division: Chytridiomycota
Class: Chytridiomycetes
Order: Rhizophydiales
Genus: Batrachochytrium
Species: B. dendrobatidis


Effect on Amphibians

Effect of Temperature

Life Cycle

Life cycle of the pathogenic chytrid fungus Batrachochytrium dendrobatidis. [4]


Effect of Temperature

Geographic Distribution

Geographic distribution of Batrachochytrium species, Bd and Bsal[6]


Genotypes of Bd isolated from infected amphibians in the international trade and phylogenetically linked genotypes from segregated geographic localities.[7]


Effect of Temperature

Climate Change

Conclusion

References



Authored for BIOL 238 Microbiology, taught by Joan Slonczewski, 2018, Kenyon College.