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| Maia,Natália da Costa; Souza,Patrícia Nirlane da Costa; Godinho,Bárbara Temponi Vilarino; Moreira,Silvino Intra; Abreu,Lucas Magalhães de; Jank,Liana; Cardoso,Patrícia Gomes. |
| ABSTRACT This study aimed to isolate and identify endophytic fungi from the forage grass P. maximum and evaluate their ability to inhibit the growth of plant pathogenic fungi. One sample from P. purpureum grass was also included. Surface disinfected stem fragments were used for endophytic fungal isolation. One hundred and twenty-six endophytic fungi were isolated, of which 118 were from P. maximum and eight from P. purpureum. Morphological characteristics and internal transcribed spacer (ITS) and 18S (NS) sequence comparisons identified most isolated endophytic fungi as belonging to the phylum Ascomycota, with Sarocladium being the dominant genus. The isolates were subjected to in vitro antagonism tests against pathogenic fungi, and 31 endophytic fungi... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antagonism; Grasses; Molecular identification; Plant pathogens; RDNA. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100303 |
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| Santoro,Patricia Helena; Cavaguchi,Silvia Akimi; Alexandre,Talita Moretto; Zorzetti,Janaina; Neves,Pedro Manuel Oliveira Janeiro. |
| Trichoderma atroviride was tested in vitro for its sensitivity to different herbicides. The dosages tested were recommended dosage (RD), half dosage (½RD), and double dosage (2RD). Germination, colony-forming units (CFU), radial growth, and spore production were evaluated. Carfentrazone-ethyl and sulfentrazone inhibited the germination at RD and 2RD. A reduction in the CFU was observed for glufosinate-ammonium, atrazine, carfentrazone-ethyl, diuron + paraquat dichloride, imazapyr, oxyfluorfen, and sulfentrazone at each of the tested dosages. Radial growth was influenced by ametryn, atrazine, carfentrazone-ethyl, oxyfluorfen, and sulfentrazone herbicides, with an 80% reduction of the colonial area. Spore production was affected by carfentrazone-ethyl,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological control; Compatibility; Conservative management; Antagonistic microorganisms; Plant pathogens. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000200012 |
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| Savchenko, K.G.; Carris, L.M.; Castlebury, L.A.; Heluta, V.P.; Wasser, S.P.; Nevo, E.. |
| Stripe smut of grasses, Ustilago striiformis s.l., is a complex of smut fungi widely distributed over temperate and subtropical regions. The disease results in the shredding and death of leaf tissue following the rupture of elongated sori. Nearly 100 different grass species in more than 30 genera are infected by stripe smut. During the last two centuries more than 30 smut taxa have been described from members of this complex. The present study attempts to clarify the taxonomy and phylogeny of stripe smuts on grasses by analysing both morphological and molecular data. More than 200 specimens from different continents and host plants were examined. DNA was extracted from teliospores of 23 specimens from different hosts collected in Europe, Asia, and North... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Fungi; ITS; LSU; Phylogeny; Plant pathogens; Ustilaginaceae. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/531715 |
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