Fungalpedia – Note 1000, Nectria

 

Nectria (Fr.) Fr. 

Citation when using this data: de Silva NI et al. 2022 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Nectriaceae, Hypocreales, Hypocreomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

The genus consists of species referred to as the nectrioid or nectria-like fungi (Hirooka et al. 2012). Fries (1849) initially established Nectria that was typified by N. cinnabarina. They are weak parasites of woody plants and shrubs throughout the temperate zone of the northern hemisphere (Hirooka et al. 2011, Yang et al. 2018, 2019b). The genus is characterized by well-developed stromata, red to dark red, subglobose to globose, fleshy, soft-textured, uniloculate perithecia with coelomycetous asexual morphs containing hyaline, narrowly ellipsoidal to cylindrical and nonseptate conidia (Rossman et al. 1999, Hirooka et al. 2009, 2012, Yang et al. 2019b).

Type species: Nectria cinnabarina (Tode) Fr., Summa veg. Scand., Sectio Post. (Stockholm): 388 (1849).

Other accepted species: Species Fungorum – search Nectria.

 

image

 

Figure 1 – Nectria pseudotrichia (MFLU 21-0237). a The specimen. b, c Appearance of perithecia on substrate. d, e Vertical sections through perithecia. f, g Peridium. h Paraphyses. i–k Asci (j, k stained with Congo red). l–p Ascospores. Scale bars: b = 500 μm, c = 200 μm, d, e = 50 μm, f–k = 20 μm, l–p = 10 μm.

 

References

Fries EM. 1849 – Summa vegetabilium Scandinaviae. Typographis Academica, Uppsala.

Hirooka Y, Rossman AY, Chaverri P. 2009 – Systematics of the genus Nectria based on six-gene phylogeny. Inoculum 60, p22. 

Hirooka Y, Rossman AY, Chaverri P. 2011 – A morphological and phylogenetic revision of the Nectria cinnabarina species complex. Studies in Mycology 68, 35–56.

Hirooka Y, Rossman AY, Samuels GJ, Lechat C, Chaverri P. 2012 – A monograph of Allantonectria, Nectria, and Pleonectria (Nectriaceae, Hypocreales, Ascomycota) and their pycnidial, sporodochial, and synnematous anamorphs. Studies in Mycology 71, 1–210.

Rossman AY, Samuels GJ, Rogerson CT, Lowen R. 1999 – Genera of Bionectriaceae, Hypocreaceae and Nectriaceae (Hypocreales, Ascomycetes). Studies in Mycology 42, 1–248.

Yang Q, Chen WY, Jiang N, Tian CM. 2019b – Nectria-related fungi causing dieback and canker diseases in China, with Neothyronectria citri sp. nov. described. MycoKeys 56, 49–66. 

Yang Q, Du Z, Liang YM, Tian CM. 2018 – Molecular phylogeny of Nectria species associated with dieback and canker diseases in China, with a new species described. Phytotaxa 356, 199–214.

 

Entry by

Nimali Indeewari de Silva, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand, Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.

 

Published online 18 November 2022

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