Data/hora: 05/06/2024 13:28:42

Provedor de dados: | 102
País: | Brazil
Título: | Screening of sweet sorghum accessions for inhibition of secondary sporulation and saccharide measurements in honeydew of Claviceps africana
Autores: | Bogo,Amauri; Mantle,Peter G; Harthmann,Oscar E. L.
Data: | 2004-02-01
Ano: | 2004
Palavras-chave: | Sorghum bicolor; Germplasm bank; Sugars.
Resumo: | Certain sweet sorghums (Sorghum bicolor) inhibit the secondary sporulation of Claviceps africana, which occurs on exuded ergot honeydew when the parasite is supplied with excess sucrose, which is then transformed to unique free oligosaccharides fructosyl - mannitol and difructosyl - mannitol with spore germination inhibiting properties. Five accessions (BRA-035726-SUGAR DRIP, BRA-035696-THEIS, BRA-036013-MN-4578, BRA-035947-MN-4418 and CMSXS-633) of sweet sorghum were selected among 50 evaluated. These five accessions failed to support secondary sporulation on the "honeydew" exuded from infected florets. There was a higher concentration (%w/v) of the free oligosaccharides on the honeydew of these accessions when compared to a hybrid male-sterile grain sorghum. Therefore, a possible strategy would be seek to incorporate a sweet character into "A" lines for hybrid seed production in order to restrict secondary disease spread.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582004000100013
Editor: | Sociedade Brasileira de Fitopatologia
Relação: | 10.1590/S0100-41582004000100013
Formato: | text/html
Fonte: | Fitopatologia Brasileira  v.29 n.1 2004
Fonte: | info:eu-repo/semantics/openAccess