Septoglomus deserticola emended and new combinations in the emended definition of the family Diversisporaceae

• Autorzy: Blaszkowski J. , Chwat G.

Warianty tytułu

PL

Uzupełnione diagnozy dwóch taksonów - Septoglomus deserticola i Diversisporaceae oraz nowe kombinacje w obrębie rodzajów Glomus i Corymbiglomus

• Języki publikacji: EN

Abstrakty

EN

An updated morphology of spores of Septoglomus deserticola, an arbuscular mycorrhizal fungus of the phylum Glomeromycota, is presented based on the original description of the species, only one other its definition recently published and spores produced in pot cultures inoculated with the rhizosphere soil and root fragments of an unrecognized grass colonizing maritime sand dunes of the Hicacos Peninsula, Cuba. Phylogenetic analyses of sequences of the large subunit (LSU) nrDNA region of the Cuban fungus confirmed its affinity with S. deserticola deposited in the International Bank for the Glomeromycota (BEG) and indicated that its closest relatives are S. fuscum and S. xanthium. Phylogenetic analyses of sequences of the small subunit (SSU) nrDNA confirmed the Cuban fungus x S. fuscum x S. xanthium relationship revealed in analyses of the LSU sequences and thereby suggested the Cuban Septoglomus is S. deserticola. However, it was impossible to prove directly the identity of the Cuban fungus and S. deserticola from BEG based on SSU sequences due to the lack of S. deserticola SSU sequences in public databases. In addition, phylogenetic analyses of LSU and SSU sequences confirmed the uniqueness of the recently erected genus Corymbiglomus with the type species C. corymbiforme (formerly Glomus corymbiforme) in the family Diversisporaceae and proved that its LSU sequences group in a clade with LSU sequences of G. globiferum and G. tortuosum. Consequently, the two latter species were transferred to Corymbiglomus and named C. globiferum comb. nov. and C. tortuosum comb. nov., and the definitions of the family Diversisporaceae and the genus Diversispora were emended.

PL

Przedstawiono uzupełnioną definicję morfologii zarodników Septoglomus deserticola, arbuskularnego grzyba mikoryzowego z gromady Glomeromycota, na podstawie oryginalnego opisu tego gatunku, jego jedynej innej definicji opublikowanej niedawno i zarodników wyhodowanych w kulturach wazonowych zainokulowanych glebą ryzosfrową i fragmentami korzeni nierozpoznanej trawy kolonizującej piaszczyste wydmy nadmorskie Półwyspu Hicacos, Kuba. Analizy filogenetyczne sekwencji dużej podjednostki (LSU) jądrowego rDNA kubańskiego grzyba potwierdziły jego powinowactwo z S. deserticola zdeponowanym w Międzynarodowym Banku Glomeromycota (BEG) i wykazały, że jego najbliższymi krewniakami są S. fuscum i S. xanthium. Analizy filogenetyczne sekwencji małej podjednostki (SSU) jądrowego rDNA potwierdziły pokrewieństwo trzech taksonów: grzyb kubański x S. fuscum x S. xanthium ujawnione w analizach sekwencji LSU i przez to zasugerowały, że kubańskie S. deserticola jest właściwym S. deserticola. Jednak nie było możliwości dowieść bezpośrednio identyczności kubańskiego S. deserticola z typowym S. deserticola z BEG na podstawie sekwencji SSU z powodu braku sekwencji SSU S. deserticola w dostępnych bazach danych. Ponadto analizy filogenetyczne sekwencji LSU i SSU potwierdziły unikatowość niedawno utworzonego rodzaju Corymbiglomus z gatunkiem typowym C. corymbiforme (wcześniejszym Glomus corymbiforme) w rodzinie Diversisporaceae i dowiodły, że jego sekwencje LSU grupują się w kladzie z sekwencjami LSU Glomus globiferum i G. tortuosum. W konsekwencji dwa ostatnie gatunki zostały przeniesione do rodzaju Corymbiglomus i nazwane C. globiferum comb. nov. oraz C. tortuosum comb. nov., a definicje rodziny Diversisporaceae i rodzaju Diversispora zostały uzupełnione.

Słowa kluczowe

EN

Septoglomus deserticola; new combination; Glomus; Corymbiglomus; definition; Diversisporaceae; fungi; mycorrhizal fungi; taxonomy

• Wydawca: -
• Czasopismo: Acta Mycologica
• Rocznik: 2013
• Tom: 48
• Numer: 1
• Opis fizyczny: p.89-103,fig.,ref.

Twórcy

autor

Blaszkowski J.

• Department of Plant Protection, West Pomeranian University of Technology, Slowackiego 17, 71-434 Szczecin, Poland

autor

Chwat G.

• Department of Plant Protection, West Pomeranian University of Technology, Slowackiego 17, 71-434 Szczecin, Poland

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