Pleosporales » Didymellaceae » Boeremia

Boeremia exigua

Boeremia exigua (Desm.) Aveskamp, Gruyter & Verkley, in Aveskamp et al., Stud. Mycol. 65: 37 (2010).

   Index Fungorum number: IF  515624; Facesoffungi number: FoF -

 

            ≡ Phoma exigua Desm., Annls Sci. Nat., Bot., sér. 3 11(2): 282 (1849).

           Index Fungorum number: IF 515624; Facesoffungi number: FoF 07129, Fig. 1

Description: see Aveskamp et al. (2010), Chen et al. (2015), Hou et al. (2020).

Material considered: see Aveskamp et al. (2010), Chen et al. (2015), Hou et al. (2020).

Fig. 1 Boeremia galiicola (MFLU 15-1319, holotype, modified from Jayasiri et al. 2017). a Ascomata on host surface. b Section through ascoma. c Peridium. d Pseudoparaphyses. e, f Asci. g, h Ascospores. i Conidiomata in culture. j Conidiogenous cells. k Conidia. Scale bars: a = 200 μm, b = 100 μm, c = 30 μm, d, g, h, j, k = 10 μm, i = 500 μm, e, f = 20 μm.

 

Importance and distribution

Boeremia comprises 21 morphological species occurring on a wide range of host such as Artemisia maritima (Asteraceae), Coffea arabica (Rubiaceae), Dactylis purpurea (Poaceae), Galium (Rubiaceae), Linum usitatissimum (Linaceae), Nerium oleander (Apocynaceae), Phaseolus (Fabaceae), Populus (Salicaceae), Rhaponticum repens (Asteraceae), Solanum tuberosum (Solanaceae), Syringa vulgaris (Oleaceae), Viburnum opulus (Adoxaceae), Vinca (Apocynaceae) and Wisteria (Fabaceae). Boeremia has cosmopolitan distribution.

 

Quarantine significance

Several Boeremia species are of quarantine significance. For instance, Boeremia foveata and B. lycopersici are listed in the Chinese quarantine pest directory (Zhao et al. 2021).

 

Biochemical importance of the genus, chemical diversity or applications

Boerechalasins A-G was reported from B. exigua and have anti-inflammatory and cytotoxic activities. Chen et al. (2020e) reported boremexins compounds from B. exigua.

 

References

Aveskamp MM, de Gruyter J, Woudenberg JHC, Verkley GJM, Crous PW. 2010 – Highlights of the Didymellaceae: a polyphasic approach to characterise Phoma and related pleosporalean genera. Studies in Mycology 65, 1–60.

Chen Y, Sun LT, Yang HX, Li ZH et al. 2020e – Depsidones and diaryl ethers from potato endophytic fungus Boeremia exigua. Fitoterapia 141, 104483.

Hou LW, Groenewald JZ, Pfenning LH, Yarden O et al. 2020 − The phoma-like dilemma. Studies in Mycology 96, 309–396.

Jayasiri SC, Hyde KD, Jones EBG, Jeewon R et al. 2017b – Taxonomy and multigene phylogenetic evaluation of novel species in Boeremia and Epicoccum with new records of Ascochyta and Didymella (Didymellaceae). Mycosphere 8, 1080–1101.

Zhao P, Crous PW, Hou LW, Duan WJ et al. 2021 – Fungi of quarantine concern for China I: Dothideomycetes. Persoonia 47, 45–105.

 

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