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Mycosphaerella pteridis (De Not.) J. Schröt. 1894的圖片
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Mycosphaerella

Associations ( 英語 )

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Foodplant / spot causer
Mycosphaerella causes spots on live leaf of Fallopia japonica

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Mycosphaerella ( 英語 )

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Mycosphaerella is a genus of ascomycota. With more than 10,000 species, it is the largest genus of plant pathogen fungi.

The following introduction about the fungal genus Mycosphaerella is copied (with permission) from the dissertation of W. Quaedvlieg (named: Re-evaluating Mycosphaerella and allied genera).[1]

Species belonging to the fungal genus Mycosphaerella (1884) (Capnodiales, Dothideomycetes) have evolved as endophytes, saprotrophs and symbionts, but mostly Mycosphaerella species are foliicolous plant pathogens which are the cause of significant economical losses in both temperate and tropical crops worldwide. The generic concept of Mycosphaerella is based on the type species of the genus, M. punctiformis, which was introduced 130 years ago in order to describe small loculoascomycetes with few distinct morphological traits. Species belonging to Mycosphaerella were characterised as having pseudothecial ascomata that can be immersed or superficial, embedded in host tissue or erumpent, having ostiolar periphyses, but lacking interascal tissue at maturity. Ascospores are hyaline, but in some cases slightly pigmented and predominantly 1-septate, although taxa with 3-septate ascospores have been recorded. This description appears to be quite distinctive, but is in fact very broad and actually lead to 120 years of confusion in which the generic name Mycosphaerella was being used as a dumping ground for small loculoascomycetes with few distinct morphological traits. In the 19th and 20th centuries, thousands of species and infrasprecific taxa were described in the genus Sphaerella, only to have the entire genus and about 1000 additional species redescribed into the genus Mycosphaerella at the end of the 20th century.

The identification of Mycosphaerella species by morphological means is extremely difficult as these taxa produce very small fruiting structures with highly conserved morphologies, tending to grow and sporulate poorly in culture and for over 120 years, identification was based on morphology alone. These identification difficulties are amplified by the fact that up to six different species can inhabit the same lesion as either a primary or secondary pathogen, making even host-specific species difficult to identify. The introduction of affordable sequencing technology during the first decade of the 21st century allowed for much more accurate species delimitation and phylogenetic elucidation, leading to the conclusion that the broad taxonomic description of the genus Mycosphaerella and a lack of clear morphological features led to many Mycosphaerella and mycosphaerella-like species being misidentified. Because the classic taxonomic description of Mycosphaerella is broad and includes so many mycosphaerella-like species, the traditional generic concept of Mycosphaerella will hereafter be referred to as Mycosphaerella sensu lato (s. lat.) in order to avoid confusion.

Currently more than 3 000 species and close to 10 000 names are associated with Mycosphaerella s. lat., but work by Verkley et al. (2004) revealed that the genus Mycosphaerella s. str. (based on M. punctiformis) was in fact limited to species with Ramularia asexual morphs. Research by Braun (1990, 1998) showed that there are only about 500 Ramularia species known from literature, leaving the majority of mycosphaerella-like species that will need to be reclassified into taxonomically correct genera and families. Since the advent of mass sequencing technology, 39 taxonomically correct genera have already been confirmed as belonging to the Mycosphaerellaceae via molecular means:

(Amycosphaerella, Neopseudocercospora, Ramularia, Caryophylloseptoria, Neoseptoria, Ramulispora, Cercospora, Pallidocercospora, Ruptoseptoria, Cercosporella, Paracercospora, Scolecostigmina, Colletogloeum, Paramycosphaerella, Septoria, Cytostagonospora, Passalora*, Sonderhenia, Distocercospora, Periconiella, Sphaerulina, Dothistroma, Phaeophleospora, Stenella, Lecanosticta, Phloeospora, Stromatoseptoria, Microcyclosporella, Polyphialoseptoria, Trochophora, Neodeightoniella, Polythrincium, Xenomycosphaerella, Neomycosphaerella, Pseudocercospora, Zasmidium, Neopenidiella, Pseudocercosporella* and Zymoseptoria)

  • The genera Passalora and Pseudocercosporella are known to be paraphyletic and will be treated separately in the near future.

Although at least 25 more genera with postulated Mycosphaerellaceae affinity have yet to be confirmed. The current generic and family concepts of both Mycosphaerella s. str., the Mycosphaerellaceae and the Teratosphaeriaceae have evolved indirectly from the work of Crous (1998), who used culture and asexual morphological characteristics to show that Mycosphaerella s. lat. was in fact polyphyletic, suggesting that it should be subdivided into natural genera as defined by its asexual morphs. In contrast to these findings, the first sequence-based phylogenetic trees published for Mycosphaerella s. lat. (based mainly on ITS nrDNA sequence data), suggested that Mycosphaerella was monophyletic. However, as more sequence data of Mycosphaerella spp. became available (especially of loci such as the 28S nrDNA), the view of Mycosphaerella s. lat. as being monophyletic has gradually shifted and there is now ample evidence that Mycosphaerella in its broadest sense is polyphyletic. Since this discovery was made, the original conserved generic concept of Mycosphaerella s. lat. has been replaced with the concept that the mycosphaerella-like morphology has evolved multiple times and that these taxa in fact cluster in diverse families such as the Cladosporiaceae, Dissoconiaceae, Mycosphaerellaceae and Teratosphaeriaceae.

As such, the name Mycosphaerella should be limited to species with Ramularia sexual forms, but the name Ramularia actually predates the name Mycosphaerella, so the name Ramularia has preference over Mycosphaerella, and will be placed on the list of protected names.

Mating type

Three closely related Mycosphaerella species, M. fijiensis, M. musicola and M. eumusae cause a destructive disease of bananas. Each of these three species is heterothallic, that is, matings can only occur between individuals of different mating type. Although the mating type DNA sequences of the three species appear to have arisen from a common ancestral sequence, there also has been considerable evolutionary divergence between them.[2]

References

  1. ^ "Re-evaluating Mycosphaerella and allied genera". 2014-12-03. hdl:1874/308485. {{cite journal}}: Cite journal requires |journal= (help)
  2. ^ Arzanlou M, Crous PW, Zwiers LH. Evolutionary dynamics of mating-type loci of Mycosphaerella spp. occurring on banana. Eukaryot Cell. 2010 Jan;9(1):164-72. doi: 10.1128/EC.00194-09. Epub 2009 Nov 13. PMID:19915079
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Mycosphaerella: Brief Summary ( 英語 )

由wikipedia EN提供

Mycosphaerella is a genus of ascomycota. With more than 10,000 species, it is the largest genus of plant pathogen fungi.

The following introduction about the fungal genus Mycosphaerella is copied (with permission) from the dissertation of W. Quaedvlieg (named: Re-evaluating Mycosphaerella and allied genera).

Species belonging to the fungal genus Mycosphaerella (1884) (Capnodiales, Dothideomycetes) have evolved as endophytes, saprotrophs and symbionts, but mostly Mycosphaerella species are foliicolous plant pathogens which are the cause of significant economical losses in both temperate and tropical crops worldwide. The generic concept of Mycosphaerella is based on the type species of the genus, M. punctiformis, which was introduced 130 years ago in order to describe small loculoascomycetes with few distinct morphological traits. Species belonging to Mycosphaerella were characterised as having pseudothecial ascomata that can be immersed or superficial, embedded in host tissue or erumpent, having ostiolar periphyses, but lacking interascal tissue at maturity. Ascospores are hyaline, but in some cases slightly pigmented and predominantly 1-septate, although taxa with 3-septate ascospores have been recorded. This description appears to be quite distinctive, but is in fact very broad and actually lead to 120 years of confusion in which the generic name Mycosphaerella was being used as a dumping ground for small loculoascomycetes with few distinct morphological traits. In the 19th and 20th centuries, thousands of species and infrasprecific taxa were described in the genus Sphaerella, only to have the entire genus and about 1000 additional species redescribed into the genus Mycosphaerella at the end of the 20th century.

The identification of Mycosphaerella species by morphological means is extremely difficult as these taxa produce very small fruiting structures with highly conserved morphologies, tending to grow and sporulate poorly in culture and for over 120 years, identification was based on morphology alone. These identification difficulties are amplified by the fact that up to six different species can inhabit the same lesion as either a primary or secondary pathogen, making even host-specific species difficult to identify. The introduction of affordable sequencing technology during the first decade of the 21st century allowed for much more accurate species delimitation and phylogenetic elucidation, leading to the conclusion that the broad taxonomic description of the genus Mycosphaerella and a lack of clear morphological features led to many Mycosphaerella and mycosphaerella-like species being misidentified. Because the classic taxonomic description of Mycosphaerella is broad and includes so many mycosphaerella-like species, the traditional generic concept of Mycosphaerella will hereafter be referred to as Mycosphaerella sensu lato (s. lat.) in order to avoid confusion.

Currently more than 3 000 species and close to 10 000 names are associated with Mycosphaerella s. lat., but work by Verkley et al. (2004) revealed that the genus Mycosphaerella s. str. (based on M. punctiformis) was in fact limited to species with Ramularia asexual morphs. Research by Braun (1990, 1998) showed that there are only about 500 Ramularia species known from literature, leaving the majority of mycosphaerella-like species that will need to be reclassified into taxonomically correct genera and families. Since the advent of mass sequencing technology, 39 taxonomically correct genera have already been confirmed as belonging to the Mycosphaerellaceae via molecular means:

(Amycosphaerella, Neopseudocercospora, Ramularia, Caryophylloseptoria, Neoseptoria, Ramulispora, Cercospora, Pallidocercospora, Ruptoseptoria, Cercosporella, Paracercospora, Scolecostigmina, Colletogloeum, Paramycosphaerella, Septoria, Cytostagonospora, Passalora*, Sonderhenia, Distocercospora, Periconiella, Sphaerulina, Dothistroma, Phaeophleospora, Stenella, Lecanosticta, Phloeospora, Stromatoseptoria, Microcyclosporella, Polyphialoseptoria, Trochophora, Neodeightoniella, Polythrincium, Xenomycosphaerella, Neomycosphaerella, Pseudocercospora, Zasmidium, Neopenidiella, Pseudocercosporella* and Zymoseptoria)

The genera Passalora and Pseudocercosporella are known to be paraphyletic and will be treated separately in the near future.

Although at least 25 more genera with postulated Mycosphaerellaceae affinity have yet to be confirmed. The current generic and family concepts of both Mycosphaerella s. str., the Mycosphaerellaceae and the Teratosphaeriaceae have evolved indirectly from the work of Crous (1998), who used culture and asexual morphological characteristics to show that Mycosphaerella s. lat. was in fact polyphyletic, suggesting that it should be subdivided into natural genera as defined by its asexual morphs. In contrast to these findings, the first sequence-based phylogenetic trees published for Mycosphaerella s. lat. (based mainly on ITS nrDNA sequence data), suggested that Mycosphaerella was monophyletic. However, as more sequence data of Mycosphaerella spp. became available (especially of loci such as the 28S nrDNA), the view of Mycosphaerella s. lat. as being monophyletic has gradually shifted and there is now ample evidence that Mycosphaerella in its broadest sense is polyphyletic. Since this discovery was made, the original conserved generic concept of Mycosphaerella s. lat. has been replaced with the concept that the mycosphaerella-like morphology has evolved multiple times and that these taxa in fact cluster in diverse families such as the Cladosporiaceae, Dissoconiaceae, Mycosphaerellaceae and Teratosphaeriaceae.

As such, the name Mycosphaerella should be limited to species with Ramularia sexual forms, but the name Ramularia actually predates the name Mycosphaerella, so the name Ramularia has preference over Mycosphaerella, and will be placed on the list of protected names.

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Mycosphaerella ( 世界語 )

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Mycosphaerella estas teleomorfa genro de fungo. Multaj anamorfaj genroj havas Mycosphaerella kiel teleomorfo, do verŝajne Mycosphaerella ankaŭ dissplitiĝos. Striktasence Mycosphaerella havas nur Ramularia kiel anamorfo.

Priskribo

Peritecioj formiĝas en folioj, li estas malgrandaj. Askosporoj estas ducelulaj kaj senkoloraj.

Kelkaj specioj

Oni trovas en ĉi tiu genro gravajn parazitojn de plantoj :

Notoj kaj referencoj

Eksteren ligilo

http://www.fungaldiversity.org/fdp/sfdp/FD38-1.pdf

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Mycosphaerella: Brief Summary ( 世界語 )

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Mycosphaerella estas teleomorfa genro de fungo. Multaj anamorfaj genroj havas Mycosphaerella kiel teleomorfo, do verŝajne Mycosphaerella ankaŭ dissplitiĝos. Striktasence Mycosphaerella havas nur Ramularia kiel anamorfo.

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Mycosphaerella ( 西班牙、卡斯蒂利亞西班牙語 )

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Mycosphaerella: Brief Summary ( 西班牙、卡斯蒂利亞西班牙語 )

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Mycosphaerella es un género de hongos Ascomycota. Con más de 10.000 especies, es el género más grande de los hongos patógenos.

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Mycosphaerella ( 愛沙尼亞語 )

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Mycosphaerella: Brief Summary ( 愛沙尼亞語 )

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Mycosphaerella on seeneperekond.

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Mycosphaerella ( 法語 )

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Mycosphaerella est un genre de champignons ascomycètes de la famille des Mycosphaerellaceae.

Ce genre, le plus vaste parmi les champignons ascomycètes est le plus important chez les champignons phytopathogènes. Il comprend plus de 10 000 espèces, en y incluant ses genres anamorphes, parmi lesquels les plus notables sont Septoria, Cercospora, Pseudocercospora, Ramularia, Dothistroma, etc[2].

Synonymes

Selon Index Fungorum (24 novembre 2014)[3] :

  • Ascospora Fr., 1825 ;
  • Cercosphaerella Kleb., 1918 ;
  • Cyclodothis Syd. & P. Syd., 1913 ;
  • Didymellina Höhn., 1918 ;
  • Haplodothis Höhn., 1911 ;
  • Hypomycopsis Henn., 1904 ;
  • Oligostroma Syd. & P. Syd., 1914 ;
  • Ramosphaerella Laib., 1921)
  • Ramularisphaerella Kleb., 1918 ;
  • Scirrhiachora Theiss. & Syd., 1915 ;
  • Septorisphaerella Kleb., 1918 ;
  • Septosphaerella Laib., 1921 ;
  • Sphaerella Ces. & De Not., 1863 ;
  • Sphaerella (Fr.) Rabenh., 1856 ;
  • Sphaeria subgen. Sphaerella Fr., 1849.

Liste d'espèces

Selon Catalogue of Life (24 novembre 2014)[4] :

Selon Index Fungorum (24 novembre 2014)[3] :

Selon NCBI (24 novembre 2014)[5] :

Notes et références

  1. Integrated Taxonomic Information System (ITIS), www.itis.gov, CC0 https://doi.org/10.5066/F7KH0KBK, consulté le 24 novembre 2014
  2. (en) « Welcome to the Mycosphaerella and its anamorphs database », sur Q-bank (Comprehensive Databases on Quarantine Plant Pests and Diseases) (consulté le 24 novembre 2014).
  3. a et b Index Fungorum, consulté le 24 novembre 2014
  4. Bánki, O., Roskov, Y., Vandepitte, L., DeWalt, R. E., Remsen, D., Schalk, P., Orrell, T., Keping, M., Miller, J., Aalbu, R., Adlard, R., Adriaenssens, E., Aedo, C., Aescht, E., Akkari, N., Alonso-Zarazaga, M. A., Alvarez, B., Alvarez, F., Anderson, G., et al. (2021). Catalogue of Life Checklist (Version 2021-10-18). Catalogue of Life. https://doi.org/10.48580/d4t2, consulté le 24 novembre 2014
  5. NCBI, consulté le 24 novembre 2014

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Mycosphaerella: Brief Summary ( 法語 )

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Mycosphaerella est un genre de champignons ascomycètes de la famille des Mycosphaerellaceae.

Ce genre, le plus vaste parmi les champignons ascomycètes est le plus important chez les champignons phytopathogènes. Il comprend plus de 10 000 espèces, en y incluant ses genres anamorphes, parmi lesquels les plus notables sont Septoria, Cercospora, Pseudocercospora, Ramularia, Dothistroma, etc.

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Mycosphaerella ( 義大利語 )

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Mycosphaerella: Brief Summary ( 義大利語 )

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Mycosphaerella è un genere di funghi ascomiceti. Comprende più di 10.000 specie, molte delle quali sono parassite di piante.

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Mycosphaerella ( 波蘭語 )

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Mycosphaerella Johanson – rodzaj grzybów z rodziny Mycosphaerellaceae[1].

Charakterystyka

Należy do niego ponad 600 gatunków. Grzyby mikroskopijne, liczne z nich to pasożyty roślin powodujące duże straty s gospodarce człowieka. Tworzą małe, kuliste lub gruszkowate, cienkościenne perytecja z wzniesionym ujściem na brodawce, zazwyczaj zanurzone w tkankach rośliny, czasami na podkładce. Ujście owocnika otoczone peryfizami. Worki maczugowate, grubościenne, pęczkami wyrastające na dnie perytecjum. Brak nibywstawek. Askospory wrzecionowato- elipsoidalne lub cylindryczne, dwukomórkowe, z przegrodą położoną blisko środka[2].

Systematyka i nazewnictwo

Pozycja w klasyfikacji według Index Fungorum: Mycosphaerellaceae, Capnodiales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi[1].

Synonimy: Ascospora Fr. 1825 Cercosphaerella Kleb. 1918 Cyclodothis Syd. & P. Syd. 1913 Didymellina Höhn. 1918 Eruptio M.E. Barr 1996 Haplodothis Höhn. 1911 Hypomycopsis Henn. 1904 Oligostroma Syd. & P. Syd. 1914 Phragmogloeum Petr. 1954 Ramosphaerella Laib. 1921 Ramularisphaerella Kleb. 1918 Scirrhiachora Theiss. & Syd. 1915 Septorisphaerella Kleb. 1918 Septosphaerella Laib. 1921 Sphaerella Ces. & De Not. 1863 Sphaerella (Fr.) Rabenh. 1856 Sphaeria d Sphaerella Fr. 1849[3].

Gatunki występujące w Polsce

Nazwy naukowe na podstawie Index Fungorum[5]. Wykaz gatunków występujących w Polsce według checklist[6].

Przypisy

  1. a b Index Fungorum (ang.). [dostęp 2016-12-16].
  2. Joanna Marcinkowska: Oznaczanie rodzajów grzybów sensu lato ważnych w fitopatologii. Warszawa: PWRiL, 2012. ISBN 978-83-09-01048-7.
  3. Species Fungorum (ang.). [dostęp 2016-12-16].
  4. a b c Takson niepewny
  5. Index Fungorum (gatunki) (ang.). [dostęp 2016-12-16].
  6. Wiesław Mulenko, Tomasz Majewski, Małgorzata Ruszkiewicz-Michalska: A preliminary checklist of micromycetes in Poland. Wstępna lista grzybów mikroskopijnych Polski. Kraków: W. Szafer. Institute of Botany, PAN, 2008. ISBN 978-83-89648-75-4.
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Mycosphaerella: Brief Summary ( 波蘭語 )

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Mycosphaerella Johanson – rodzaj grzybów z rodziny Mycosphaerellaceae.

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Mycosphaerella ( 葡萄牙語 )

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Mycosphaerella: Brief Summary ( 葡萄牙語 )

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Mycosphaerella é um género of ascomycota. Com mais de 10.000 espécies, é o género maior dos fungos patogénicos.

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Mycosphaerella ( 越南語 )

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Mycosphaerella là một chi Ascomycetes trong họ Mycosphaerellaceae.[1]

Đây là loài gây hại của các cây trong chi Eucalyptus, phát triển phổ biến ở Uruguay.

Chú thích

  1. ^ List of insect pests and diseases by country. FAO. 2015. Truy cập ngày 2 tháng 7 năm 2015.

Tham khảo


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wikipedia VI

Mycosphaerella: Brief Summary ( 越南語 )

由wikipedia VI提供

Mycosphaerella là một chi Ascomycetes trong họ Mycosphaerellaceae.

Đây là loài gây hại của các cây trong chi Eucalyptus, phát triển phổ biến ở Uruguay.

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