Pleosporales » Pyrenochaetopsidaceae » Pyrenochaetopsis

Pyrenochaetopsis leptospora

Pyrenochaetopsis leptospora (Sacc. & Briard) Gruyter, Aveskamp & Verkley, in de Gruyter et al., Mycologia 102(5): 1076 (2010).

≡ Pyrenochaeta leptospora Sacc. & Briard, Revue mycol., Toulouse 11(no. 41): 16 (1889)

            Index Fungorum number: IF 514654; Facesoffungi number: FoF 08357, Fig. 1

Description: see de Gruyter et al. (2010); Valenzuela-Lopez et al. (2018).

Material considered: see de Gruyter et al. (2010); Valenzuela-Lopez et al. (2018).

Fig. 1 Pyrenochaetopsis leptospora (CBS 101635, re-drawn from Fig. 33 in Valenzuela-Lopez et al. 2018). a Colony on MEA (front and reverse). b Pycnidia forming on OA. c Squash mount of pycnidia. d Conidiogenous cells. e Conidia. Scale bars: c = 100 μm, d, e = 10 μm.

Importance and distribution

Fan et al. (2020a) reported anticancer compounds namely pentacyclic decalinoylspirotetramic acid derivative, pyrenosetin D, decalin derivatives wakodecalines A and B from the endophytic strain Pyrenochaetopsis FVE-087 from seaweed. Fan et al. (2020b) reported other anticancer compounds namely decalinoyltetramic acid derivatives, pyrenosetins A-C, from the endophytic Pyrenochaetopsis sp. FVE-001.

 

Quarantine significance

Pyrenochaetopsis might be of quarantine importance because of its pathogenic nature. Pyrenochaetopsis was reported in soybean roots (Neupane et al. 2021). Studies on pathogenicity status of Pyrenochaetopsis is limited and warrants further research.

 

Biochemical importance of the genus, chemical diversity or applications

Pyrenochaetopsis produces a wide range of compounds. Nogawa et al. (2017) reported Wakodecalines A and B, decaline metabolites from Pyrenochaetopsis sp. RK10-F058. Silva et al. (2019) documented the biochemical properties and catalytic specificity of a new Neutral Serine Peptidase secreted by Pyrenochaetopsis sp. Flores-Bocanegra et al. (2020) reported several chemicals such as naphthoquinones, 5-hydroxy-6-(1-hydroxyethyl)-2,7-dimethoxy-1,4-naphthalenedione, 5-hydroxy-6-[1-(acetyloxy) ­ethyl]-2,7-dimethoxy-1,4-naphthalenedione, 6-ethyl-2,7-dimethoxyjuglone, kirschsteinin, misakimycin. Fan et al. (2020) reported other anticancer compounds namely decalin derivatives wakodecalines A and B from another endophytic strain Pyrenochaetopsis FVE-087 from the same seaweed. There are 17 Pyrenochaetopsis epithets in Index Fungorum (2022), but P. pratorum has been transferred to Xenopyrenochaetopsis. Pyrenochaetopsis comprises 16 species known on a wide range of hosts such as Chromolaena odorata (Asteraceae), Globodera pallida (Heteroderidae), Hordeum vulgare (Poaceae), Saccharum officinalum (Poaceae), Hordeum vulgare (Poaceae), Milium effusum (Poaceae), Secale cereale (Poaceae), Buellia sp. (Caliciaceae), Coffea arabica (Rubiaceae), Poa sp. (Poaceae), Dactylis glomerata (Poaceae), Lolium perenne (Poaceae) and Coffea arabica (Rubiaceae). Pyrenochaetopsis is known from China, Europe (France, Netherlands), India, New Zealand, South America (Brazil), Thailand.

 

References

da Silva RR, da Rosa NG, de Oliveira LCG, Juliano MA, Juliano L, Rosa JC, Cabral H. 2019 –Biochemical Properties and Catalytic Specificity of a Novel Neutral Serine Peptidase Secreted by Fungus Pyrenochaetopsis sp. Applied Biochemistry and Biotechnology 187,1158–1172. doi: 10.1007/s12010-018-2875-3.

De Gruyter J, Woudenberg JHC, Aveskamp MM, Verkley GJM et al. 2010 – Systematic reappraisal of species in Phoma section Paraphoma, Pyrenochaeta and Pleurophoma. Mycologia 102, 1066–1081.

Fan B, Dewapriya P, Li F, Blümel M, Tasdemir D. 2020b – Pyrenosetins A–C, New Decalinoylspirotetramic Acid Derivatives Isolated by Bioactivity-Based Molecular Networking from the Seaweed-Derived Fungus Pyrenochaetopsis sp. FVE-001. Marine Drugs 18, 47.

Fan B, Dewapriya P, Li F, Grauso L, Blümel M, Mangoni A, Tasdemir D. 2020a – Pyrenosetin D, a New Pentacyclic Decalinoyltetramic Acid Derivative from the Algicolous Fungus Pyrenochaetopsis sp. FVE-087. Marine drugs 18, 281.

Flores-Bocanegra L, Raja HA, Bacon JW, Maldonado AC, Burdette JE, Pearce CJ, Oberlies NH. 2021 – Cytotoxic Naphthoquinone Analogues, Including Heterodimers, and Their Structure Elucidation Using LR-HSQMBC NMR Experiments. Journal of natural products 84, 771–778.

Neupane A, Bulbul I, Wang Z, Lehman RM, Nafziger E, Marzano SL. 2021 – Long term crop rotation effect on subsequent soybean yield explained by soil and root-associated microbiomes and soil health indicators. Scientific Reports 11, 9200. doi: 10.1038/s41598-021-88784-6

Nogawa T, Kato N, Shimizu T, Okano A, Futamura Y, Takahashi S, Osada H. 2017 –Wakodecalines A and B, new decaline metabolites isolated from a fungus Pyrenochaetopsis sp. RK10-F058. The Journal of Antibiotics 71.

Valenzuela-Lopez N, Cano-Lira JF, Guarro J, Sutton DA et al. 2018 – Coelomycetous Dothideomycetes with emphasis on the families Cucurbitariaceae and Didymellaceae. Studies in Mycology 90, 1–69.

 

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