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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo; Embrapa Pesca e Aquicultura; Embrapa Soja. |
Data corrente: |
09/09/2021 |
Data da última atualização: |
27/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CAMPOS, L. J. M.; ALMEIDA, R. E. M. de; SILVA, D. D. da; COTA, L. V.; NAOE, A. M. L.; PELUZIO, J. M.; BERNARDES, F. P.; COSTA, R. V. da. |
Afiliação: |
LEONARDO JOSE MOTTA CAMPOS, CNPSO; RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; DAGMA DIONISIA DA SILVA, CNPMS; LUCIANO VIANA COTA, CNPMS; Universidade Federal do Tocantins, Palmas, TO 77001-090, Brazil; Universidade Federal do Tocantins, Palmas, TO 77001-090, Brazil; Faculdade Católica do Tocantins, Unidade II, Palmas, TO 77000-000, Brazil; RODRIGO VERAS DA COSTA, CNPMS. |
Título: |
Physiological and biophysical alterations in maize plants caused by Colletotrichum graminicola infection verified by OJIP study. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Tropical Plant Pathology, v. 46, p. 674-683, 2021. |
DOI: |
10.1007/s40858-021-00465-x |
Idioma: |
Inglês |
Conteúdo: |
Anthracnose caused by Colletotrichum graminicola (Ces.) Wils is among the most aggressive maize diseases worldwide, considerably hindering crop productivity. To investigate the responses underlying the host-pathogen interaction involved in anthracnose infection, we conducted two feld experiments in some of the main grain producing areas of the State of Tocantins, in Brazil. Four maize hybrids (with diferential tolerance to C. graminicola) were sown in February and March, 2017. Chlorophyll fuorescence measures were performed according to the OJIP protocol; additionally, SPAD readings were conducted and productivity components were assessed. Inoculation with the fungus spore suspension afected the response curve of the chlorophyll fuorescence transient, SPAD index, and productivity components. Anthracnose stalk rot caused 20-25% reduction in grain weight, 6?8% reduction in maize ear size, and 20-23% reduction in ear weight. Furthermore, plants experiencing C. graminicola rot showed reduced SPAD index and a 24-34% reduction in the activity indicator of PSII (PITotal). These changes in the photosynthetic apparatus were successfully observed via chlorophyll fuorescence measurements. |
Palavras-Chave: |
Fotossistema; Fuorescência da clorofila. |
Thesagro: |
Antracnose; Colletotrichum Graminicola; Doença de Planta; Milho; Perda da Produção; Produtividade. |
Thesaurus Nal: |
Anthracnose; Chlorophyll; Corn; Photosystem II. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal H Saúde e Patologia X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/232916/1/ID-40408-Campos2021-Article-PhysiologicalAndBiophysicalAlt.pdf
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Marc: |
LEADER 02268naa a2200361 a 4500 001 2141301 005 2023-03-27 008 2021 bl uuuu u00u1 u #d 024 7 $a10.1007/s40858-021-00465-x$2DOI 100 1 $aCAMPOS, L. J. M. 245 $aPhysiological and biophysical alterations in maize plants caused by Colletotrichum graminicola infection verified by OJIP study.$h[electronic resource] 260 $c2021 520 $aAnthracnose caused by Colletotrichum graminicola (Ces.) Wils is among the most aggressive maize diseases worldwide, considerably hindering crop productivity. To investigate the responses underlying the host-pathogen interaction involved in anthracnose infection, we conducted two feld experiments in some of the main grain producing areas of the State of Tocantins, in Brazil. Four maize hybrids (with diferential tolerance to C. graminicola) were sown in February and March, 2017. Chlorophyll fuorescence measures were performed according to the OJIP protocol; additionally, SPAD readings were conducted and productivity components were assessed. Inoculation with the fungus spore suspension afected the response curve of the chlorophyll fuorescence transient, SPAD index, and productivity components. Anthracnose stalk rot caused 20-25% reduction in grain weight, 6?8% reduction in maize ear size, and 20-23% reduction in ear weight. Furthermore, plants experiencing C. graminicola rot showed reduced SPAD index and a 24-34% reduction in the activity indicator of PSII (PITotal). These changes in the photosynthetic apparatus were successfully observed via chlorophyll fuorescence measurements. 650 $aAnthracnose 650 $aChlorophyll 650 $aCorn 650 $aPhotosystem II 650 $aAntracnose 650 $aColletotrichum Graminicola 650 $aDoença de Planta 650 $aMilho 650 $aPerda da Produção 650 $aProdutividade 653 $aFotossistema 653 $aFuorescência da clorofila 700 1 $aALMEIDA, R. E. M. de 700 1 $aSILVA, D. D. da 700 1 $aCOTA, L. V. 700 1 $aNAOE, A. M. L. 700 1 $aPELUZIO, J. M. 700 1 $aBERNARDES, F. P. 700 1 $aCOSTA, R. V. da 773 $tTropical Plant Pathology$gv. 46, p. 674-683, 2021.
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Embrapa Soja (CNPSO) |
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2. | | BARROSO NETO, J.; MACHADO, L. A. P.; CARVALHO, R. de C. M.; CAMARGOS, A. O. A.; HEINEMANN, A. B. Indicadores fotossintéticos em cultivares de arroz irrigado tropical sob incremento da adubação nitrogenada e deficit de radiação. In: SEMINÁRIO JOVENS TALENTOS, 15., 2021, Santo Antônio de Goiás. Resumos... Brasília, DF: Embrapa; Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2021. p. 46. Evento online.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Arroz e Feijão. |
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4. | | CARVALHO, R. de C. M.; CAMARGO, A. O. A.; BARROSO NETO, J.; MACHADO, L. A. P.; HEINEMANN, A. B. Efeito da radiação solar global na produtividade de grãos e no teor de carboidratos solúveis totais no arroz irrigado. In: SEMINÁRIO JOVENS TALENTOS, 15., 2021, Santo Antônio de Goiás. Resumos... Brasília, DF: Embrapa; Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2021. p. 85. Evento online.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Arroz e Feijão. |
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