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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
24/02/2017 |
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Data da última atualização: |
27/06/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PAIXÃO, F. R. S.; MUNIZ, E. R.; BARRETO, L. P.; BERNARDO, C. C.; MASCARIN, G. M.; LUZ, C.; FERNANDES, E. K. K. |
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Afiliação: |
UFG; UFG; UFG; UFG; GABRIEL MOURA MASCARIN, CNPAF; UFG; UFG. |
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Título: |
Increased heat tolerance afforded by oil-based conidial formulations of Metarhizium anisopliae and Metarhizium robertsii. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Biocontrol Science and Technology, v. 27, n. 3, p. 324-337, 2017. |
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DOI: |
10.1080/09583157.2017.1281380 |
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Idioma: |
Inglês |
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Conteúdo: |
The thermotolerance of oil-based conidial formulations of Metarhizium anisopliae s.l. (IP 46) and Metarhizium robertsii (ARSEF 2575) were investigated. Conidia of IP 46 or ARSEF 2575 were suspended in different adjuvants and exposed to 45±0.2°C for 4, 6, 8 or 24 h; their viability was then assessed after 48 h incubation at 27 ± 1°C. Conidia heated in pure mineral or vegetable oil exhibited mean relative viability exceeding 70% after 8 h of heat exposure, whereas low germination (20%) was observed when conidia were heated in water (Tween 80® 0.01%), carboxymethyl cellulose gel or emulsifiable oils (Graxol® or Assist®) and exposed to heat for 6 or 8 h. In addition, conidia of IP 46 suspended in either pure mineral or canola oil and exposed to heat for 48 h had moderate viability, 57% or 41%, respectively. Unstable oil-in-water emulsions showed a higher percentage of conidia incorporated into oil micellae, while the stable emulsions had higher percentage of conidia outside the oil micellae. The thermotolerance of conidia formulated in stable emulsions, however, did not differ from that of conidia formulated in unstable emulsions. The present study highlights possibilities to alleviate the deleterious effects of heat stress towards Metarhizium spp. conidia applied for controlling arthropod pests and vectors through oil-based formulations. |
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Palavras-Chave: |
Conidial thermotolerance; Metharizium. |
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Thesaurus Nal: |
Adjuvants; Emulsions; Entomopathogenic fungi. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02195naa a2200265 a 4500
001 2065546
005 2017-06-27
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1080/09583157.2017.1281380$2DOI
100 1 $aPAIXÃO, F. R. S.
245 $aIncreased heat tolerance afforded by oil-based conidial formulations of Metarhizium anisopliae and Metarhizium robertsii.$h[electronic resource]
260 $c2017
520 $aThe thermotolerance of oil-based conidial formulations of Metarhizium anisopliae s.l. (IP 46) and Metarhizium robertsii (ARSEF 2575) were investigated. Conidia of IP 46 or ARSEF 2575 were suspended in different adjuvants and exposed to 45±0.2°C for 4, 6, 8 or 24 h; their viability was then assessed after 48 h incubation at 27 ± 1°C. Conidia heated in pure mineral or vegetable oil exhibited mean relative viability exceeding 70% after 8 h of heat exposure, whereas low germination (20%) was observed when conidia were heated in water (Tween 80® 0.01%), carboxymethyl cellulose gel or emulsifiable oils (Graxol® or Assist®) and exposed to heat for 6 or 8 h. In addition, conidia of IP 46 suspended in either pure mineral or canola oil and exposed to heat for 48 h had moderate viability, 57% or 41%, respectively. Unstable oil-in-water emulsions showed a higher percentage of conidia incorporated into oil micellae, while the stable emulsions had higher percentage of conidia outside the oil micellae. The thermotolerance of conidia formulated in stable emulsions, however, did not differ from that of conidia formulated in unstable emulsions. The present study highlights possibilities to alleviate the deleterious effects of heat stress towards Metarhizium spp. conidia applied for controlling arthropod pests and vectors through oil-based formulations.
650 $aAdjuvants
650 $aEmulsions
650 $aEntomopathogenic fungi
653 $aConidial thermotolerance
653 $aMetharizium
700 1 $aMUNIZ, E. R.
700 1 $aBARRETO, L. P.
700 1 $aBERNARDO, C. C.
700 1 $aMASCARIN, G. M.
700 1 $aLUZ, C.
700 1 $aFERNANDES, E. K. K.
773 $tBiocontrol Science and Technology$gv. 27, n. 3, p. 324-337, 2017.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
11/05/2017 |
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Data da última atualização: |
19/06/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
TAVARES-DIAS, M. |
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Afiliação: |
MARCOS TAVARES DIAS, CPAF-AP. |
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Título: |
Community of protozoans and metazoans parasitizing Auchenipterus nuchalis (Auchenipteridae), a catfish from the Brazilian Amazon. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Acta Scientiarum. Biological Sciences, Maringá, v. 39, n. 1, p. 123-128, Jan./Mar. 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
This paper describes the first study on parasite diversity in Auchenipterus nuchalis Spix & Agassiz, 1829 (Auchenipteridae). In 31 fish caught in a tributary of the Amazon River, 10,708 parasites were collected, such as Ichthyophthirius multifiliis, Piscinoodinium pilullare, Cosmetocleithrum striatuli, metacercariae of Posthodiplostomum sp, and larvae and adults of Procamallanus (Spirocamallanus) inopinatus. These parasite species showed aggregated dispersion, except for C. striatuli, which had a uniform dispersion. The component community of parasites showed a low Brillouin diversity (0.67 ± 0.27), low species richness (3.5 ± 0.8) and low evenness (0.43 ± 0.17), and it was characterized by the presence of species with high prevalence and abundance. Protozoan species were the prevalent parasites, which may be a consequence of the host?s mode of life, while the low presence of endoparasites in A. nuchalis suggests that this fish may occupy an intermediate trophic level in the food web. These data represent the first record of such parasite species for this host. |
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Palavras-Chave: |
Parasite. |
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Thesagro: |
Parasito; Peixe de água doce. |
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Thesaurus NAL: |
Freshwater fish. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/159702/1/CPAF-AP-2017-Community-of-protozoans-and-metazoans.pdf
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Marc: |
LEADER 01666naa a2200169 a 4500
001 2069509
005 2017-06-19
008 2017 bl uuuu u00u1 u #d
100 1 $aTAVARES-DIAS, M.
245 $aCommunity of protozoans and metazoans parasitizing Auchenipterus nuchalis (Auchenipteridae), a catfish from the Brazilian Amazon.$h[electronic resource]
260 $c2017
520 $aThis paper describes the first study on parasite diversity in Auchenipterus nuchalis Spix & Agassiz, 1829 (Auchenipteridae). In 31 fish caught in a tributary of the Amazon River, 10,708 parasites were collected, such as Ichthyophthirius multifiliis, Piscinoodinium pilullare, Cosmetocleithrum striatuli, metacercariae of Posthodiplostomum sp, and larvae and adults of Procamallanus (Spirocamallanus) inopinatus. These parasite species showed aggregated dispersion, except for C. striatuli, which had a uniform dispersion. The component community of parasites showed a low Brillouin diversity (0.67 ± 0.27), low species richness (3.5 ± 0.8) and low evenness (0.43 ± 0.17), and it was characterized by the presence of species with high prevalence and abundance. Protozoan species were the prevalent parasites, which may be a consequence of the host?s mode of life, while the low presence of endoparasites in A. nuchalis suggests that this fish may occupy an intermediate trophic level in the food web. These data represent the first record of such parasite species for this host.
650 $aFreshwater fish
650 $aParasito
650 $aPeixe de água doce
653 $aParasite
773 $tActa Scientiarum. Biological Sciences, Maringá$gv. 39, n. 1, p. 123-128, Jan./Mar. 2017.
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Embrapa Amapá (CPAF-AP) |
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