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|metadata.artigo.dc.title:||Scanning electron microscopy applied to seed-borne fungi examination|
|metadata.artigo.dc.creator:||Alves, Marcelo de Carvalho|
Pozza, Edson Ampelio
|metadata.artigo.dc.subject:||Seed health analysis|
|metadata.artigo.dc.identifier.citation:||ALVES, M. de C.; POZZA, E. A. Scanning electron microscopy applied to seed-borne fungi examination. Microscopy Research and Technique, New York, v. 72, p. 482 – 488, 2009.|
|metadata.artigo.dc.description.abstract:||he aim of this study was to test the standard scanning electron microscopy(SEM) as a potential alternative to study seed-borne fungi in seeds, by two different conditions ofblotter test and water restriction treatment. In the blotter test, seeds were subjected to conditionsthat enabled pathogen growth and expression, whereas the water restriction method consisted inpreventing seed germination during the incubation period, resulting in the artiﬁcial inoculation offungi. In the ﬁrst condition, seeds of common bean (Phaseolus vulgaris L.), maize (Zea mays L.),and cotton (Gossypium hirsutum L.) were submitted to the standard blotter test and then preparedand observed with SEM. In the second condition, seeds of cotton (G. hirsutum), soybean (Glycinemax L.), and common bean (P. vulgaris L.) were, respectively, inoculated with Colletotrichum gossy-pii var. cephalosporioides, Colletotrichum truncatum, and Colletotrichum lindemuthianum by thewater restriction technique, followed by preparation and observation with SEM. The standardSEM methodology was adopted to prepare the specimens. Considering the seeds submitted to theblotter test, it was possible to identify Fusarium sp. on maize, C. gossypii var. cephalosporioides,and Fusarium oxysporum on cotton, Aspergillus ﬂavus, Penicillium sp., Rhizopus sp., and Mucorsp. on common bean. Structures of C. gossypii var. cephalosporioides, C. truncatum, and C. linde-muthianum were observed in the surface of inoculated seeds|
|Appears in Collections:||DEG - Artigos publicados em periódicos|
DFP - Artigos publicados em periódicos
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