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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
29/08/2000 |
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Data da última atualização: |
29/08/2000 |
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Autoria: |
MORROW, B. J.; BOUCIAS, D. G.; HEATH, M. A. |
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Título: |
Loss of virulence in an isolate of an entomopathogenic fungus, Nomuraea rileyi, after serial in vitro passage. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Journal of Economic Entomology, Lanham, v.82, n.2, p.404-407, 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
Serial in vitro passage of Nomuraea rileyi (Farlow) Samson (UFL 78-6 pathotype) altered both its growth and development on in vitro and in vivo substrates. After only six conidial transfers on Sabouraud maltose and yeast extract agar (SMAY) plates, a reduction in the ability of these cultures to produce the yeastlike, hyphal body stage was observed. Conidia derived from transfers 6-10, although virulent to neonatal Anticarsia gemmatalis Hubner larvae, failed to produce progeny conidia on larvae killed by N. rileyi. Continued serial conidial transfer (>10) of this pathotype on SMAY resulted in conidia with reduced virulence against neonatal larvae. By the 16th conidial transfer, progeny conidia were avirulent to larvae. The attenuation of N. rileyi was associated with the sporulation process. After multiple vegetative transfers (>80) of the hyphal body stage on SMAY plates, no decrease in virulence to A. gemmatalis was observed. |
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Palavras-Chave: |
EUA; Fungo entomopatogenico; Fungo patogenico; USA. |
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Thesagro: |
Inseto; Nomuraea Rileyi. |
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Thesaurus Nal: |
entomopathogenic fungi; Insecta; pathogens. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01663naa a2200253 a 4500
001 1458916
005 2000-08-29
008 1989 bl --- 0-- u #d
100 1 $aMORROW, B. J.
245 $aLoss of virulence in an isolate of an entomopathogenic fungus, Nomuraea rileyi, after serial in vitro passage.
260 $c1989
520 $aSerial in vitro passage of Nomuraea rileyi (Farlow) Samson (UFL 78-6 pathotype) altered both its growth and development on in vitro and in vivo substrates. After only six conidial transfers on Sabouraud maltose and yeast extract agar (SMAY) plates, a reduction in the ability of these cultures to produce the yeastlike, hyphal body stage was observed. Conidia derived from transfers 6-10, although virulent to neonatal Anticarsia gemmatalis Hubner larvae, failed to produce progeny conidia on larvae killed by N. rileyi. Continued serial conidial transfer (>10) of this pathotype on SMAY resulted in conidia with reduced virulence against neonatal larvae. By the 16th conidial transfer, progeny conidia were avirulent to larvae. The attenuation of N. rileyi was associated with the sporulation process. After multiple vegetative transfers (>80) of the hyphal body stage on SMAY plates, no decrease in virulence to A. gemmatalis was observed.
650 $aentomopathogenic fungi
650 $aInsecta
650 $apathogens
650 $aInseto
650 $aNomuraea Rileyi
653 $aEUA
653 $aFungo entomopatogenico
653 $aFungo patogenico
653 $aUSA
700 1 $aBOUCIAS, D. G.
700 1 $aHEATH, M. A.
773 $tJournal of Economic Entomology, Lanham$gv.82, n.2, p.404-407, 1989.
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Registro original: |
Embrapa Soja (CNPSO) |
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