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Registro Completo |
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
19/08/2021 |
Data da última atualização: |
10/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CATÃO, A. M. L.; RODRIGUES, J.; MARRETO, R. N.; MASCARIN, G. M.; FERNANDES, E. K. K.; HUMBER, R. A.; LUZ, C. |
Afiliação: |
ALAINE MARIA LOPES CATÃO, UFG; JUSCELINO RODRIGUES, UFG; RICARDO NEVES MARRETO, UFG; GABRIEL MOURA MASCARIN, CNPMA; ÉVERTON KORT KAMP FERNANDES, UFG; RICHARD ALAN HUMBER, USDA-ARS; CHRISTIAN LUZ, UFG. |
Título: |
Optimization of granular formulations of Metarhizium humberi microsclerotia with humectants. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Journal of Basic Microbiology, v. 61, n. 9, p. 808-813, 2021. |
ISSN: |
0233-111X |
DOI: |
https://doi.org/10.1002/jobm.202100171 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Granular microsclerotial formulations of entomopathogenic fungi deserve attention because of their post-application, in situ production of new conidia that enhance and prolong mycoinsecticidal efficacy against a target pest insect. Because high ambient moisture is a crucial condition to induce fungal development and conidiogenesis on granules, we tested the impacts of the additions of three humectants - glycerin, propylene glycol, and polyethylene glycol 400 - on water absorption by pellets incorporating microsclerotia of Metarhizium humberi IP 46 with microcrystalline cellulose or vermiculite carriers, and on the production of infective conidia of IP 46 microsclerotia in ambient humidities suboptimal for routine conidiogenesis. Glycerin facilitated greater and faster absorption of water than the other humectants. Microcrystalline cellulose absorbed low quantities of water without any added humectant whereas vermiculite did not. IP 46 did not grow or sporulate on pellets prepared with or without glycerin at 86% relative humidity (RH) or on control pellets without glycerin at 91% RH; conidial production on pellets prepared with vermiculite or microcrystalline cellulose and 10% glycerin reached 1.1 x 10(5) conidia/mg and 1 x 10(5) conidia/mg, respectively, after 20 days of exposure at 91% RH. Hence, these results strongly support glycerin as a suitable humectant for granular microsclerotial formulations of this fungus. |
Palavras-Chave: |
Conidiogenesis; Glycerin; Humidity stress. |
Thesagro: |
Fungo Entomógeno; Glicerina; Pellet; Teor de Umidade. |
Thesaurus Nal: |
Entomopathogenic fungi; Humidity; Pellets. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02413naa a2200337 a 4500 001 2133743 005 2022-06-10 008 2021 bl uuuu u00u1 u #d 022 $a0233-111X 024 7 $ahttps://doi.org/10.1002/jobm.202100171$2DOI 100 1 $aCATÃO, A. M. L. 245 $aOptimization of granular formulations of Metarhizium humberi microsclerotia with humectants.$h[electronic resource] 260 $c2021 520 $aAbstract: Granular microsclerotial formulations of entomopathogenic fungi deserve attention because of their post-application, in situ production of new conidia that enhance and prolong mycoinsecticidal efficacy against a target pest insect. Because high ambient moisture is a crucial condition to induce fungal development and conidiogenesis on granules, we tested the impacts of the additions of three humectants - glycerin, propylene glycol, and polyethylene glycol 400 - on water absorption by pellets incorporating microsclerotia of Metarhizium humberi IP 46 with microcrystalline cellulose or vermiculite carriers, and on the production of infective conidia of IP 46 microsclerotia in ambient humidities suboptimal for routine conidiogenesis. Glycerin facilitated greater and faster absorption of water than the other humectants. Microcrystalline cellulose absorbed low quantities of water without any added humectant whereas vermiculite did not. IP 46 did not grow or sporulate on pellets prepared with or without glycerin at 86% relative humidity (RH) or on control pellets without glycerin at 91% RH; conidial production on pellets prepared with vermiculite or microcrystalline cellulose and 10% glycerin reached 1.1 x 10(5) conidia/mg and 1 x 10(5) conidia/mg, respectively, after 20 days of exposure at 91% RH. Hence, these results strongly support glycerin as a suitable humectant for granular microsclerotial formulations of this fungus. 650 $aEntomopathogenic fungi 650 $aHumidity 650 $aPellets 650 $aFungo Entomógeno 650 $aGlicerina 650 $aPellet 650 $aTeor de Umidade 653 $aConidiogenesis 653 $aGlycerin 653 $aHumidity stress 700 1 $aRODRIGUES, J. 700 1 $aMARRETO, R. N. 700 1 $aMASCARIN, G. M. 700 1 $aFERNANDES, E. K. K. 700 1 $aHUMBER, R. A. 700 1 $aLUZ, C. 773 $tJournal of Basic Microbiology$gv. 61, n. 9, p. 808-813, 2021.
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101. | | CRISPIM, S. M. A.; ABREU, U. G. P. de; SORIANO, B. M. A.; DOMINGOS BRANCO, O. Determinação de nutrientes, fibra e lignina em Brachiaria decumbers, Pantanal, Corumbá, Brasil = Determination of nutrients, fiber and lignin in Brachiaria decumbers, Pantanal, Corumbá, Brazil. In: REUNION ASOCIACION LATINOAMERICANA DE PRODUCCION ANIMAL, 20.; REUNION ASOCIACION PERUANA DE PRODUCCION ANIMAL, 30.; CONGRESO INTERNACIONAL DE GANADERIA, 5. Cusco, 2007. Anais...Cusco: APPA, 2007. 4 p. Del 21 al 25 de octubre.Tipo: Artigo em Anais de Congresso / Nota Técnica |
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118. | | ABREU, U.; GREGO, C.; FASIABEN, M.; GOMES, E.; ALMEIDA, M.; OLIVEIRA, O. Beef cattle stocking rate, a key to the conservation of the pastoral system in Brazilian biomes. In: INTERNATIONAL CONFERENCE ON AGRICULTURAL STATISTICS, 6., 2013, Rio de Janeiro. Improving Statistics for food security, sustainable agriculture, and rural development: linking statistics with decision making: proceedings. Rio de Janeiro: IBGE, 2015. p. 698-699. ICAS 2013.Biblioteca(s): Embrapa Agricultura Digital. |
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