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| Delhey,R; Kiehr,M; Allievi,MI; Lusto,J; Frayssinet,S; Sidoti Hartmann,B; Kröger,I; Paoloni,PJ; Zappacosta,D; Servera,A. |
| Se informa sobre hospedantes, distribución, daños e importancia de Sclerotinia sclerotiorum en la región surpampeana y norpatagónica de la Argentina. Se encontraron infecciones espontáneas en 25 especies vegetales, entre oleaginosas, hortalizas, ornamentales e invasoras. Carduus thoermeri, Xanthium cavanillesii, Marrubium vulgare y Ranunculus repens son hospedantes nuevos de S. sclerotiorum. Los registros en Helianthus tuberosus, Diplotaxis tenuifolia y Cucurbita pepo son nuevos para Argentina. En la región estudiada, S. sclerotiorum causa daños importantes en Helianthus annuus, Glycine max, Apium graveolens, Foeniculum vulgare y Lactuca sativa. Daños menores se observan en Daucus carota, Petroselinum crispum, Brassica oleracea, B. rapa ssp. pekinensis,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sclerotinia sclerotiorum; Hospedantes; Argentina. |
| Ano: 2009 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572009000200005 |
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| Kiehr,M; Delhey,R; Lusto,J. |
| A new disease of lettuce has been observed in the surroundings of Bahía Blanca, Argentina. The symptoms include dwarfing, general chlorosis, wilting, root rot, and leaf blight, sometimes followed by plant death. Pythium tracheiphilum Matta was found to be consistently associated with those symptoms. The morphological and morphometric characteristics of this oomycete are described. Isolates obtained from field-infected lettuce plants were inoculated to lettuce and caused similar symptoms as those found in natural infections. Seedling emergence was also severely affected following experimental inoculation. Koch's Postulates were fulfilled by recovering the fungus from inoculated plants. The new disease shows a high destructive potential but currently has a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pythium tracheiphilum; Lettuce; Lactuca sativa; Argentina. |
| Ano: 2015 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000200022 |
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