Metacapnodium juniperi
Metacapnodium juniperi (W. Phillips & Plowr.) Speg., Physis, Rev. Soc. Arg. Cienc. Nat. 4(no. 17): 288 (1918).
≡ Capnodium juniperi W. Phillips & Plowr., Grevillea 13(no. 67): 75 (1885).
Index Fungorum number: IF 212907; Facesoffungi number: FoF 06844, Fig. 1
Description: see Hyde et al. (2013).
Material examined: see Hyde et al. (2013).
Fig. 1 Metacapnodium juniperi (K(M)164026, holotype of Capnodium juniperi, modified from Fig. 73 in Hyde et al. 2013). a Sooty mould-like appearance on host. b, c Asci. d Section through ascoma. e, f Ascospores. g–i Phialides with collarette developing on hyphae. j, k Phialides developing on ascospores. Scale bars: b, d = 100 μm, c, e, f, j, k = 10 μm, g, i = 20 μm, h = 50 μm.
Importance and distribution
Metacapnodium species are sooty moulds and form black coating on the surface of leaves. They obtain nutrition from insect honeydew. The black hyphae screen out sunlight and reduce the rate of photosynthesis (Chomnunti et al. 2014). Metacapnodium comprises 14 species known on wide range of plants such as Ackama rosifolia (Cunoniaceae), Coprosma foetidissima (Rubiaceae), Cyathea medullaris (Cyatheaceae), Dacrydium cupressinum (Podocarpaceae), Durio zibethinus (Malvaceae), Hevea brasiliensis (Euphorbiaceae), Phyllocladus trichomanoides (Podocarpaceae), Podocarpus spicatus (Podocarpaceae), Prumnopitys taxifolia (Podocarpaceae), Psidium guajava (Myrtaceae), Taxus baccata (Taxaceae). Metacapnodium is widely distributed including in Asia (Malaysia, South Korea), Europe (Ireland, Sweden, United Kingdom), North America (Canada, West Indies, the United States), Oceania (New Zealand). Fresh collections of Metacapnodium are needed as molecular data is lacking.
References
Spegazzini C. 1918 – Notas micologicas. Physis Revista de la Sociedad Argentina de Ciencias Naturales 4, 281–295.
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