Capnodiales » Mycosphaerellaceae » Pseudocercospora

Pseudocercospora vitis

Pseudocercospora vitis (Lév.) Speg., Anal. Mus. nac. B. Aires, Ser. 3 13: 438 (1910) [1911].

Septonema vitis Lév., Annls Sci. Nat., Bot., sér. 3 9: 261 (1848)

            Index Fungorum number: IF 187930; Facesoffungi number: FoFxxx, Fig. 1

Description: see Videira et al. (2014).

Material examined: see Videira et al. (2014).

 

 

Fig. 1. Acervuloseptoria ziziphicola (CBS H-21723; re-drawn from Crous et al. 2014). a–i. conidiomata, conidiophores and conidia in culture. Scale bars = 10 μm.

 

Importance and role

Importance of genus to ecosystem

Majority of Pseudocercospora species are plant pathogens on a wide variety of plants mainly in tropical and sub-tropical environments causing leaf spots, blights, fruit spot and fruit rot (Chupp 1954; Deighton 1976; von Arx 1983; Pons and Sutton 1988).

 

Industrial relevance and applications

Pseudocercospora is useful in medical industrial as it produces terreic acid which is a potential anticancer drug as it inhibits Bruton’s tyrosine kinase (Kong et al. 2018).

 

Quarantine significance

Though minimal, P. palicoureae has some biocontrol affect against the rubiaceous weed Palicourea marcgravii in Brazil (Pereira et al. 2006). Pseudocercospora can cause disease on wide range of plants such as P. angolensis is the cause of fruit and leaf spot disease on citrus (Pretorius et al. 2003). P. pini-densiflorae is responsible for brown needle blight of pine (Evans 1984; Crous et al. 1990). These diseases reflect the importance of quarantine regulations.

 

Biochemical importance of the genus, chemical diversity or applications

Prihantini et al. (2017) reported two compounds terreic acid and 6-methylsalicylic acid from Pseudocercospora sp. The compounds have good reducing power and can bleach β-carotene.

Pseudocercospora can also produce a number of phenolic compounds (Bárcena et al. 2018).

 

Diversity of the genus

Even though, there are 1642 Pseudocercospora in Index fungorum (2021), the real number of species is less as many have been synonymized and transferred to other genera such as Arthrophiala, Cercospora, Cercosporella, Clypeosphaerella, Fusarium, Helminthosporium, Mycosphaerella, Neopseudocercosporella, Parapallidocercospora, Passalora, Phaeomycocentrospora, Pruniphilomyces, Pseudocercosporella and Zasmidium. Pseudocercospora have been reported from several host plants and plant families such as Apiaceae, Apocynaceae, Araceae, Asteraceae, Balsaminaceae, Boraginaceae, Cornaceae, Dioscoreaceae, Euphorbiaceae, Fabaceae, Leguminosae, Nyctaginaceae, Phyllanthaceae, Poaceae amongst others.  Pseudocercospora is known from Alabama, Algeria, Asia, Brazil, Bulgaria, California, China, Colombia, Cyprus, India, Iowa, Jamaica, Kansas, Mississippi, Nebraska, New Jersey, Ohio, Ontario, Pennsylvania, Tanzania, Venezuela, West Indies amongst others. Pseudocercospora seems to be a diverse genus and there is without any doubt more taxa that remain to be described.

 

About Dothideomycetes

The website Dothideomycetes.org provides an up-to-date classification and account of all genera of the class Dothideomycetes.

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