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Abstract:

The growth dynamics of extraradical mycelium and spore formation of 14 ''Rhizophagus'' isolates from different sites in Argentina were evaluated under monoxenic conditions. A modified Gompertz model was used to characterize the development of mycelium and spores for each isolate under the same conditions. The lag time, maximal growth rate and total quantity of both extraradical hyphae and spores were determined. Wide variability among isolates was detected, and all growth parameters were significantly altered by fungal isolate. Discriminant analysis differentiated isolates primarily based on the extent of extraradical hyphae produced, yet such differences did not conclusively correspond to phylogenetic relationships among closely related isolates based on partial SSU sequences. Given that the ''Rhizophagus'' isolates were grown under controlled conditions for many generations, the expression of phenotypic variability could be attributed to genetic differences that are not completely resolved by phylogenetic analysis employing the small ribosomal gene. © 2014 by The Mycological Society of America.

Registro:

Documento: Artículo
Título:Growth dynamics of geographically different arbuscular mycorrhizal fungal isolates belonging to the 'Rhizophagus clade' under monoxenic conditions
Autor:Silvani, V.A.; Bidondo, L.F.; Bompadre, M.J.; Colombo, R.P.; Pérgola, M.; Bompadre, A.; Fracchia, S.; Godeas, A.
Filiación:Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad de Buenos Aires (UBA), Ciudad Universitaria, 4to piso, Pabellón 2, Buenos Aires, 1428, Argentina
SAP Labs, 1251 Waterfront Place, Pittsburgh, PA 15222, United States
Centro Regional de Investigaciones Cientificas y Transferencia Tecnológica, CRILAR-CONICET, Entre Ríos y Mendoza, Anillaco, La Rioja, 530, Argentina
Palabras clave:Glomeromycota; Growth dynamics; In vitro; R. irregularis; Rhizophagus intraradices; Variability; arbuscular mycorrhiza; ecological modeling; fungus; gene expression; growth rate; phylogenetics; Argentina; Glomeromycota; Rhizophagus; fungal DNA; ribosome DNA; Argentina; chemistry; DNA sequence; fungus spore; genetics; Glomeromycota; growth, development and aging; microbiology; molecular genetics; mycelium; mycorrhiza; nucleotide sequence; phylogeny; physiology; plant root; Argentina; Base Sequence; DNA, Fungal; DNA, Ribosomal; Glomeromycota; Molecular Sequence Data; Mycelium; Mycorrhizae; Phylogeny; Plant Roots; Sequence Analysis, DNA; Spores, Fungal
Año:2014
Volumen:106
Número:5
Página de inicio:963
Página de fin:975
DOI: http://dx.doi.org/10.3852/13-118
Título revista:Mycologia
Título revista abreviado:Mycologia
ISSN:00275514
CODEN:MYCOA
CAS:DNA, Fungal; DNA, Ribosomal
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00275514_v106_n5_p963_Silvani

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Citas:

---------- APA ----------
Silvani, V.A., Bidondo, L.F., Bompadre, M.J., Colombo, R.P., Pérgola, M., Bompadre, A., Fracchia, S.,..., Godeas, A. (2014) . Growth dynamics of geographically different arbuscular mycorrhizal fungal isolates belonging to the 'Rhizophagus clade' under monoxenic conditions. Mycologia, 106(5), 963-975.
http://dx.doi.org/10.3852/13-118
---------- CHICAGO ----------
Silvani, V.A., Bidondo, L.F., Bompadre, M.J., Colombo, R.P., Pérgola, M., Bompadre, A., et al. "Growth dynamics of geographically different arbuscular mycorrhizal fungal isolates belonging to the 'Rhizophagus clade' under monoxenic conditions" . Mycologia 106, no. 5 (2014) : 963-975.
http://dx.doi.org/10.3852/13-118
---------- MLA ----------
Silvani, V.A., Bidondo, L.F., Bompadre, M.J., Colombo, R.P., Pérgola, M., Bompadre, A., et al. "Growth dynamics of geographically different arbuscular mycorrhizal fungal isolates belonging to the 'Rhizophagus clade' under monoxenic conditions" . Mycologia, vol. 106, no. 5, 2014, pp. 963-975.
http://dx.doi.org/10.3852/13-118
---------- VANCOUVER ----------
Silvani, V.A., Bidondo, L.F., Bompadre, M.J., Colombo, R.P., Pérgola, M., Bompadre, A., et al. Growth dynamics of geographically different arbuscular mycorrhizal fungal isolates belonging to the 'Rhizophagus clade' under monoxenic conditions. Mycologia. 2014;106(5):963-975.
http://dx.doi.org/10.3852/13-118