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Registro Completo |
Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Unidades Centrais. |
Data corrente: |
02/10/2023 |
Data da última atualização: |
02/10/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
GIACOMINI, G. X.; NACHTIGAL, G. de F.; MARTINS, C. R.; HIRDES, A. R.; VALGAS, R. A.; SANTOS, A. J. R. W. A. DOS. |
Afiliação: |
GABRIELA XAVIER GIACOMINI, UNIVERSIDADE FEDERAL DE PELOTAS; GLAUCIA DE FIGUEIREDO NACHTIGAL, CPACT; CARLOS ROBERTO MARTINS, CPACT; ADRIANE ROEDEL HIRDES, UNIVERSIDADE FEDERAL DE PELOTAS; RICARDO ALEXANDRE VALGAS, GEM; ALINE JOANA ROLINA WOHLMUTH ALVES DOS SANTOS, UNIVERSIDADE FEDERAL DE PELOTAS. |
Título: |
Eco-friendly fungicide based on chitosan and pecan nut oil: development and evaluation in anthracnose control. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Acta Scientiarum. Biological Sciences, v. 45, e62090, 2023. |
ISSN: |
1807-863X |
Idioma: |
Inglês |
Conteúdo: |
Industrial processing of pecan nuts results in edible oil ? with fractions of fatty acids, polyphenols and phytosterols - that may be used for managing phytopathogens. Besides, chitosan may interfere with pathogen development directly and/or activate mechanisms of defense in plant tissues. This study aimed at developing a novel, natural and eco-friendly fungicide based on pecan nut oil immobilized in chitosan and at evaluating its activity against Colletotrichum gloeosporioides, an agent of anthracnose in guava trees and other fruit trees. Changes in the immobilized material exhibited at bands were identified by infrared spectroscopy. Additionally, micrographs by scanning electron microscopy (SEM) showed efficient changes in the immobilized material, by comparison with the polymer chitosan. Decreases in Colletotrichum gloeosporioides sporulation in vitro were 37% in the case of pecan nut oil immobilized in chitosan (IO) and 39% in the case of non-immobilized pecan nut oil (NIO). These results are positive because this fungus produces a large number of spores which may disseminate and survive on surfaces of plant tissues infected by anthracnose. Immobilization of pecan oil in chitosan showed benefits in the synthesis of a novel, stable and eco-friendly material which may be applied to guava trees to control anthracnose. |
Thesagro: |
Fungicida; Noz Peca; Óleo. |
Thesaurus Nal: |
Fungicides; Pecans. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1157020/1/Artigo-Eco-friendly-fungicide-based-on-chitosan-and-pecan-nut-oil.pdf
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Marc: |
LEADER 02078naa a2200253 a 4500 001 2157020 005 2023-10-02 008 2023 bl uuuu u00u1 u #d 022 $a1807-863X 100 1 $aGIACOMINI, G. X. 245 $aEco-friendly fungicide based on chitosan and pecan nut oil$bdevelopment and evaluation in anthracnose control.$h[electronic resource] 260 $c2023 520 $aIndustrial processing of pecan nuts results in edible oil ? with fractions of fatty acids, polyphenols and phytosterols - that may be used for managing phytopathogens. Besides, chitosan may interfere with pathogen development directly and/or activate mechanisms of defense in plant tissues. This study aimed at developing a novel, natural and eco-friendly fungicide based on pecan nut oil immobilized in chitosan and at evaluating its activity against Colletotrichum gloeosporioides, an agent of anthracnose in guava trees and other fruit trees. Changes in the immobilized material exhibited at bands were identified by infrared spectroscopy. Additionally, micrographs by scanning electron microscopy (SEM) showed efficient changes in the immobilized material, by comparison with the polymer chitosan. Decreases in Colletotrichum gloeosporioides sporulation in vitro were 37% in the case of pecan nut oil immobilized in chitosan (IO) and 39% in the case of non-immobilized pecan nut oil (NIO). These results are positive because this fungus produces a large number of spores which may disseminate and survive on surfaces of plant tissues infected by anthracnose. Immobilization of pecan oil in chitosan showed benefits in the synthesis of a novel, stable and eco-friendly material which may be applied to guava trees to control anthracnose. 650 $aFungicides 650 $aPecans 650 $aFungicida 650 $aNoz Peca 650 $aÓleo 700 1 $aNACHTIGAL, G. de F. 700 1 $aMARTINS, C. R. 700 1 $aHIRDES, A. R. 700 1 $aVALGAS, R. A. 700 1 $aSANTOS, A. J. R. W. A. DOS 773 $tActa Scientiarum. Biological Sciences$gv. 45, e62090, 2023.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Gado de Corte. |
Data corrente: |
16/02/2009 |
Data da última atualização: |
17/03/2009 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
VALLE, C. B. do; SIMIONI, C.; JANK, L.; RESENDE, R. M. S. |
Afiliação: |
Cacilda Borges do Valle, CNPGC; Carine Simioni, Bolsista CNPGC; Liana Jank, CNPGC; Rosangela Maria Simeão Resende, CNPGC. |
Título: |
Polyploidization of sexual diploid Brachiaria decumbens for intraespecific hybridization. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: INTERNATIONAL GRASSLAND CONGRESS, 21.; INTERNATIONAL RANGELAND CONGRESS, 8., 2008, Huhhot, China. Multifunctional grasslands in a changing world: proceedings. Guangzhou: Guangdong People´s Publishing House, 2008. |
Volume: |
v. 2. |
Páginas: |
p. 395 |
Idioma: |
Inglês |
Conteúdo: |
Brachiaria decumbens (D), also known as signalgrass, is the most widely adapted forage grass in the tropics. It was first introduced to Brazil in the early 1950´s and its best known cultivar, cv. Basilisk, quickly spread to the acid savannas of Latin America, covering millions of hectares. It is a natural tetraploid (4x) and apomitic genotype of good dry matter and seed production, even though it is susceptible to spittlebugs, the most widespread insect pest in tropical pastures. Breeding of this species was restricted to using 4 x apomictic accessions as pollen donors in interspecific crosses, since sexual genotypes are diploid (2x). Earlier attempts of interploydic crosses were unsuccessful (Ferguson and Crowder, 1974; Hacker, 1994). This paper is the first report of the use of in vitro culture and colchicines treatments in tetraploidizing sexual genotypes of signalgrass. |
Palavras-Chave: |
Braquiária. |
Thesagro: |
Apomixia; Brachiaria Decumbens; Cultura de Tecido; Gramínea Forrageira; Melhoramento Genético Vegetal; Pastagem; Planta Forrageira; Poliploidia. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01860naa a2200289 a 4500 001 1322812 005 2009-03-17 008 2008 bl uuuu u00u1 u #d 100 1 $aVALLE, C. B. do 245 $aPolyploidization of sexual diploid Brachiaria decumbens for intraespecific hybridization. 260 $c2008 300 $ap. 395 v. 2. 490 $vv. 2. 520 $aBrachiaria decumbens (D), also known as signalgrass, is the most widely adapted forage grass in the tropics. It was first introduced to Brazil in the early 1950´s and its best known cultivar, cv. Basilisk, quickly spread to the acid savannas of Latin America, covering millions of hectares. It is a natural tetraploid (4x) and apomitic genotype of good dry matter and seed production, even though it is susceptible to spittlebugs, the most widespread insect pest in tropical pastures. Breeding of this species was restricted to using 4 x apomictic accessions as pollen donors in interspecific crosses, since sexual genotypes are diploid (2x). Earlier attempts of interploydic crosses were unsuccessful (Ferguson and Crowder, 1974; Hacker, 1994). This paper is the first report of the use of in vitro culture and colchicines treatments in tetraploidizing sexual genotypes of signalgrass. 650 $aApomixia 650 $aBrachiaria Decumbens 650 $aCultura de Tecido 650 $aGramínea Forrageira 650 $aMelhoramento Genético Vegetal 650 $aPastagem 650 $aPlanta Forrageira 650 $aPoliploidia 653 $aBraquiária 700 1 $aSIMIONI, C. 700 1 $aJANK, L. 700 1 $aRESENDE, R. M. S. 773 $tIn: INTERNATIONAL GRASSLAND CONGRESS, 21.; INTERNATIONAL RANGELAND CONGRESS, 8., 2008, Huhhot, China. Multifunctional grasslands in a changing world: proceedings. Guangzhou: Guangdong People´s Publishing House, 2008.
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