Pyricularia

Fungalpedia – Note 1955, Pyricularia

 

Pyricularia Sacc.

Citation when using this data: Hyde KD et al. 2020 (in prep.) – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1

Classification: Pyriculariaceae, Magnaporthales, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi

The name Pyricularia refers to the pyriform shape of the conidia, which is a specific character of this genus (Bussaban et al. 2005). Pyricularia species can infect various monocotyledons including Cenchrus, Echinochloa, Lolium, Oryza, Pennisetum or Zingiber. Pyricularia oryzae is the cause of rice blast disease, one of the most important diseases of rice. Klaubauf et al. (2014) synonymised Magnaporthe grisea under Pyricularia grisea, by clarifying the taxonomic relationships among species that are magnaporthe- or pyricularia-like using molecular phylogeny (LSU, ITS, rpb1, act and calM).

Type species: Pyricularia grisea Sacc.

Other accepted species: Species Fungorum – search Pyricularia.

 

 

Figure 1 – Pyricularia oryzae (a-d, g-h), Pyricularia grisea (e, f). a-d Perithecia, asci and ascospores (redrawn from Yaegashi & Udagawa 1978). e, f Conidiophores and conidia (redrawn from Klaubauf et al. 2014). g Pyriform conidia (redrawn from Zhang et al. 2014). h Microconidia produced from phialides (redrawn from Zhang et al. 2014). Scale bars: a, d = 200 µm, b, c = 20 µm, e, f = 10 µm, g, h = 5 µm

 

References

Bussaban B, Lumyong S, Lumyong P, Seelanan T et al. 2005 – Molecular and morphological characterization of Pyricularia and allied genera. Mycologia 97, 1002–1011.

Klaubauf S, Tharreau D, Fournier E, Groenewald JZ et al. 2014 – Resolving the polyphyletic nature of Pyricularia (Pyriculariaceae). Studies in Mycology 79, 85–120.

Yaegashi H, Udagawa S. 1978 – The taxonomical identity of the perfect state of Pyricularia grisea and its allies. Canadian Journal of Botany 56, 180–183.

Zhang H, Wu Z, Wang C, Li Y, Xu JR. 2014 – Germination and infectivity of microconidia in the rice blast fungus Magnaporthe oryzae. Nature Communications 5, 4518.

 

Entry by

Kevin David Hyde, Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, P.R. China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand, Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, P.R. China, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand, World Agroforestry Centre, East and Central Asia, Kunming 650201, Yunnan, P.R. China

 

Published online 28 February 2020

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