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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
06/09/2022 |
Data da última atualização: |
08/09/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
GAVA, C. A. T.; CASTRO, A. P. C. de; PEREIRA, C. A.; GONÇALVES, J. S.; ARAÚJO, L. F. C.; PAZ, C. D. da. |
Afiliação: |
CARLOS ALBERTO TUAO GAVA, CPATSA; ANA PAULA CARVALHO DE CASTRO, UNEB/DTCS; CARLIANA ARAÚJO PEREIRA, UNEB/DTCS; JOSÉLIA SANTANA GONÇALVES, UPE; LUDMILLA FERREIRA CAJUHI ARAÚJO, UPE; CRISTIANE DOMINGOS DA PAZ, UNEB/DTCS. |
Título: |
Photoprotector adjuvants to enhance UV tolerance of yeast strains for controlling mango decay using pre-harvest spraying. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Biocontrol Science and Technology, v. 28, n. 9, p. 811-822, 2018. |
Idioma: |
Inglês |
Conteúdo: |
Post-harvest mango decay is caused by multiple pathogens in tropical conditions but concerns regarding the risk of food contamination by fungicides established biocontrol as a promising alternative. However, occurrence of quiescent infections requires pre-harvest applications of biocontrol agents (BCA), exposing them to harmful UV radiation effects. The objective of this work was to evaluate UV sensitivity of yeast BCA strains previously selected against multiple pathogens that cause mango decay and evaluate suitable UV protectants. In a first bioassay conducted exposing yeast suspensions sprayed on glass plates, it was verified that Saccharomyces sp. ESA47 and Pichia kudriavzevii CMIAT171 were highly sensitive to UV, while Saccharomyces cerevisiae ESA45 had a slightly lower mortality. A bioassay using fragments of mango peels evaluated UV protection from increasing concentrations of starch, dextrin, casein, benzophenone, and cinnamic acid derivative compounds. Results showed that starch and isoamyl p-methoxycinnamate (NHE-1000) resulted in higher survival for yeast strains in doses of 10.0 and 1.0 g kg−1, respectively. Application of the yeast BCA in a semi-commercial mango orchard resulted in a significant reduction of post-harvest disease incidence and severity. Field application of the yeasts in technical grade preparations containing both UV protectants enhanced the control efficiency by 52.5, 31.9, and 37.7% for ESA45, ESA47, and CMIAT171, respectively. MenosPost-harvest mango decay is caused by multiple pathogens in tropical conditions but concerns regarding the risk of food contamination by fungicides established biocontrol as a promising alternative. However, occurrence of quiescent infections requires pre-harvest applications of biocontrol agents (BCA), exposing them to harmful UV radiation effects. The objective of this work was to evaluate UV sensitivity of yeast BCA strains previously selected against multiple pathogens that cause mango decay and evaluate suitable UV protectants. In a first bioassay conducted exposing yeast suspensions sprayed on glass plates, it was verified that Saccharomyces sp. ESA47 and Pichia kudriavzevii CMIAT171 were highly sensitive to UV, while Saccharomyces cerevisiae ESA45 had a slightly lower mortality. A bioassay using fragments of mango peels evaluated UV protection from increasing concentrations of starch, dextrin, casein, benzophenone, and cinnamic acid derivative compounds. Results showed that starch and isoamyl p-methoxycinnamate (NHE-1000) resulted in higher survival for yeast strains in doses of 10.0 and 1.0 g kg−1, respectively. Application of the yeast BCA in a semi-commercial mango orchard resulted in a significant reduction of post-harvest disease incidence and severity. Field application of the yeasts in technical grade preparations containing both UV protectants enhanced the control efficiency by 52.5, 31.9, and 37.7% for ESA45, ESA47, and CMIAT171, respectivel... Mostrar Tudo |
Palavras-Chave: |
Podridão da manga; Protetores UV. |
Thesagro: |
Controle Biológico; Doença; Manga; Mangifera Indica; Pós-Colheita. |
Thesaurus Nal: |
Mangoes; Postharvest technology; Postharvest treatment. |
Categoria do assunto: |
S Ciências Biológicas |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146190/1/Photoprotector-adjuvants-to-enhance-UV-2018.pdf
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Marc: |
LEADER 02411naa a2200301 a 4500 001 2146190 005 2022-09-08 008 2018 bl uuuu u00u1 u #d 100 1 $aGAVA, C. A. T. 245 $aPhotoprotector adjuvants to enhance UV tolerance of yeast strains for controlling mango decay using pre-harvest spraying.$h[electronic resource] 260 $c2018 520 $aPost-harvest mango decay is caused by multiple pathogens in tropical conditions but concerns regarding the risk of food contamination by fungicides established biocontrol as a promising alternative. However, occurrence of quiescent infections requires pre-harvest applications of biocontrol agents (BCA), exposing them to harmful UV radiation effects. The objective of this work was to evaluate UV sensitivity of yeast BCA strains previously selected against multiple pathogens that cause mango decay and evaluate suitable UV protectants. In a first bioassay conducted exposing yeast suspensions sprayed on glass plates, it was verified that Saccharomyces sp. ESA47 and Pichia kudriavzevii CMIAT171 were highly sensitive to UV, while Saccharomyces cerevisiae ESA45 had a slightly lower mortality. A bioassay using fragments of mango peels evaluated UV protection from increasing concentrations of starch, dextrin, casein, benzophenone, and cinnamic acid derivative compounds. Results showed that starch and isoamyl p-methoxycinnamate (NHE-1000) resulted in higher survival for yeast strains in doses of 10.0 and 1.0 g kg−1, respectively. Application of the yeast BCA in a semi-commercial mango orchard resulted in a significant reduction of post-harvest disease incidence and severity. Field application of the yeasts in technical grade preparations containing both UV protectants enhanced the control efficiency by 52.5, 31.9, and 37.7% for ESA45, ESA47, and CMIAT171, respectively. 650 $aMangoes 650 $aPostharvest technology 650 $aPostharvest treatment 650 $aControle Biológico 650 $aDoença 650 $aManga 650 $aMangifera Indica 650 $aPós-Colheita 653 $aPodridão da manga 653 $aProtetores UV 700 1 $aCASTRO, A. P. C. de 700 1 $aPEREIRA, C. A. 700 1 $aGONÇALVES, J. S. 700 1 $aARAÚJO, L. F. C. 700 1 $aPAZ, C. D. da 773 $tBiocontrol Science and Technology$gv. 28, n. 9, p. 811-822, 2018.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
Biblioteca(s): |
Embrapa Amazônia Ocidental. |
Data corrente: |
20/11/2000 |
Data da última atualização: |
17/06/2015 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
HOFER, H.; BECK, L.; FORSTER, B.; GARCIA, M.; HANAGARTH, W.; LUIZAO, F.; LUIZAO, R.; MARTIUS, C.; MORAIS, J. W.; ROMBKE, J. |
Afiliação: |
Staatlisches Museum fur Naturkunde Karlsruhe; ECT Oekotoxikologie GmbH; Embrapa Amazonia Ocidental; INPA; Center for Development and Research-ZEF. |
Título: |
The function of the soil macrofauna in decomposition processes in central Amazonian polyculture systems and forests. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Program and abstracts... Hamburg: University, 2000. |
Páginas: |
p. 26. |
Idioma: |
Inglês |
Conteúdo: |
A study of macrofauna and decompositon in three central Amazonian ecosystems (a primary and a secondary forest and tow polyculture tree plantations) has shown the high importance of the macrofauna for the litter decompostion. Macrofauna biomass was highest in the primary forest and lowest in the secondary forest. It differed strongly between the two polyculture areas, probably due to different microclimatic conditions near the ground as influenced principally by density of secondary vegetation (cover) and shading by the neighboring forest. Litter decompositon in the central Amazon polycultures follows the same principles than in primary forest, e.g. the macrofauna regulates the decompostion rates. However the structure of the decomposer community differs clearly and lower decomposition rates and higher C/N-ratios show that the fauna in anthropogenic systems does not reach the same efficiency in decomposition and nutrient transfer. |
Palavras-Chave: |
Amazonas; Brasil; Manaus; Reclamation. |
Thesagro: |
Biomassa; Deterioração do Solo; Fauna Edáfica; Floresta Tropical Úmida; Recuperação do Solo; Serapilheira. |
Thesaurus NAL: |
biomass; environmental degradation; forest litter; soil fauna; tropical rain forests. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/125501/1/p.-26.pdf
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Marc: |
LEADER 02116nam a2200409 a 4500 001 1669961 005 2015-06-17 008 2000 bl uuuu u00u1 u #d 100 1 $aHOFER, H. 245 $aThe function of the soil macrofauna in decomposition processes in central Amazonian polyculture systems and forests. 260 $aIn: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Program and abstracts... Hamburg: University$c2000 300 $ap. 26. 520 $aA study of macrofauna and decompositon in three central Amazonian ecosystems (a primary and a secondary forest and tow polyculture tree plantations) has shown the high importance of the macrofauna for the litter decompostion. Macrofauna biomass was highest in the primary forest and lowest in the secondary forest. It differed strongly between the two polyculture areas, probably due to different microclimatic conditions near the ground as influenced principally by density of secondary vegetation (cover) and shading by the neighboring forest. Litter decompositon in the central Amazon polycultures follows the same principles than in primary forest, e.g. the macrofauna regulates the decompostion rates. However the structure of the decomposer community differs clearly and lower decomposition rates and higher C/N-ratios show that the fauna in anthropogenic systems does not reach the same efficiency in decomposition and nutrient transfer. 650 $abiomass 650 $aenvironmental degradation 650 $aforest litter 650 $asoil fauna 650 $atropical rain forests 650 $aBiomassa 650 $aDeterioração do Solo 650 $aFauna Edáfica 650 $aFloresta Tropical Úmida 650 $aRecuperação do Solo 650 $aSerapilheira 653 $aAmazonas 653 $aBrasil 653 $aManaus 653 $aReclamation 700 1 $aBECK, L. 700 1 $aFORSTER, B. 700 1 $aGARCIA, M. 700 1 $aHANAGARTH, W. 700 1 $aLUIZAO, F. 700 1 $aLUIZAO, R. 700 1 $aMARTIUS, C. 700 1 $aMORAIS, J. W. 700 1 $aROMBKE, J.
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Embrapa Amazônia Ocidental (CPAA) |
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1. | | 0900875, RELATORIO TECNICO ANUAL. EMBRAPA. CNPSA, EMBRAPA-CNPSA, Concordia-SC Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Acre; Embrapa Amapá; Embrapa Amazônia Oriental; Embrapa Pantanal. | |
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