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| Registros recuperados : 76 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
13/03/2013 |
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Data da última atualização: |
08/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
SASSAKI, G.; SCHMIDT, A. B.; FERREIRA, M. E.; RANGEL, P. H. N.; PEREIRA-NETTO, A. B. |
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Afiliação: |
GUILHERME SASSAKI, UNIVERSIDADE FEDERAL DO PARANÁ; ANDREA B. SCHMIDT, PIONEER; MARCIO ELIAS FERREIRA, CENARGEN; PAULO HIDEO NAKANO RANGEL, CNPAF; ADAUCTO B. PEREIRA-NETTO, UNIVERSIDADE FEDERAL DO PARANÁ. |
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Título: |
Characterization of cold-induced changes in the fatty acids profile of rice seedlings. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Acta Physiologiae Plantarum, v. 35, p. 1989-1996, 2013. |
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DOI: |
10.1007/s11738-013-1237-6 |
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Idioma: |
Inglês |
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Conteúdo: |
Rice, a staple food for more than one half of the world?s population, is one of the most cold-sensitive cereals. Breeding programs aimed at increasing rice production are expected to reduce cold-imposed grain losses. Several reports have demonstrated that cold induce differential effects on the fatty acids profile of membranes in chilling-sensitive and chilling-tolerant plants. In this work, we evaluated changes in fatty acid (FA) composition as a potential screening tool to evaluate chilling sensitivity of rice accessions. Cold exposure led to the preferential accumulation of the polyunsaturated linolenic and linoleic FAs and reduction of palmitic and stearic FAs, besides showing increased lignoceric acid content in roots of the variety. Similarly, roots of cold-exposed line Quila 66304 also presented preferential accumulation of linolenic and linoleic FAs and reduction of palmitic and stearic FAs. Cold exposure also led to enhanced levels of palmitic acid in shoots of Amaroo and, in a smaller extent, in shoots of Quila 66304. Linolenic acid was reduced in the shoots of both Amaroo and Quila 66304, while oleic acid content was reduced in shoots of Amaroo and slightly increased in shoots of Quila 66304. Double-bond index analysis indicated that 18 carbons FAs DBI for roots might be a good screening tool for cold response in rice. Results in this report demonstrate that cold-induced changes in FA profile represent a useful screening tool for early identification of differences in cold acclimation potential among rice accessions. MenosRice, a staple food for more than one half of the world?s population, is one of the most cold-sensitive cereals. Breeding programs aimed at increasing rice production are expected to reduce cold-imposed grain losses. Several reports have demonstrated that cold induce differential effects on the fatty acids profile of membranes in chilling-sensitive and chilling-tolerant plants. In this work, we evaluated changes in fatty acid (FA) composition as a potential screening tool to evaluate chilling sensitivity of rice accessions. Cold exposure led to the preferential accumulation of the polyunsaturated linolenic and linoleic FAs and reduction of palmitic and stearic FAs, besides showing increased lignoceric acid content in roots of the variety. Similarly, roots of cold-exposed line Quila 66304 also presented preferential accumulation of linolenic and linoleic FAs and reduction of palmitic and stearic FAs. Cold exposure also led to enhanced levels of palmitic acid in shoots of Amaroo and, in a smaller extent, in shoots of Quila 66304. Linolenic acid was reduced in the shoots of both Amaroo and Quila 66304, while oleic acid content was reduced in shoots of Amaroo and slightly increased in shoots of Quila 66304. Double-bond index analysis indicated that 18 carbons FAs DBI for roots might be a good screening tool for cold response in rice. Results in this report demonstrate that cold-induced changes in FA profile represent a useful screening tool for early identification of difference... Mostrar Tudo |
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Thesagro: |
Ácido graxo; Arroz; Frio; Oryza sativa; Temperatura. |
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Thesaurus NAL: |
Cold; Polyunsaturated fatty acids; Rice. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/179867/1/Sassaki2013-Article-CharacterizationOfCold-induced.pdf
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Marc: |
LEADER 02334naa a2200277 a 4500
001 1965025
005 2023-03-08
008 2013 bl uuuu u00u1 u #d
024 7 $a10.1007/s11738-013-1237-6$2DOI
100 1 $aSASSAKI, G.
245 $aCharacterization of cold-induced changes in the fatty acids profile of rice seedlings.$h[electronic resource]
260 $c2013
520 $aRice, a staple food for more than one half of the world?s population, is one of the most cold-sensitive cereals. Breeding programs aimed at increasing rice production are expected to reduce cold-imposed grain losses. Several reports have demonstrated that cold induce differential effects on the fatty acids profile of membranes in chilling-sensitive and chilling-tolerant plants. In this work, we evaluated changes in fatty acid (FA) composition as a potential screening tool to evaluate chilling sensitivity of rice accessions. Cold exposure led to the preferential accumulation of the polyunsaturated linolenic and linoleic FAs and reduction of palmitic and stearic FAs, besides showing increased lignoceric acid content in roots of the variety. Similarly, roots of cold-exposed line Quila 66304 also presented preferential accumulation of linolenic and linoleic FAs and reduction of palmitic and stearic FAs. Cold exposure also led to enhanced levels of palmitic acid in shoots of Amaroo and, in a smaller extent, in shoots of Quila 66304. Linolenic acid was reduced in the shoots of both Amaroo and Quila 66304, while oleic acid content was reduced in shoots of Amaroo and slightly increased in shoots of Quila 66304. Double-bond index analysis indicated that 18 carbons FAs DBI for roots might be a good screening tool for cold response in rice. Results in this report demonstrate that cold-induced changes in FA profile represent a useful screening tool for early identification of differences in cold acclimation potential among rice accessions.
650 $aCold
650 $aPolyunsaturated fatty acids
650 $aRice
650 $aÁcido graxo
650 $aArroz
650 $aFrio
650 $aOryza sativa
650 $aTemperatura
700 1 $aSCHMIDT, A. B.
700 1 $aFERREIRA, M. E.
700 1 $aRANGEL, P. H. N.
700 1 $aPEREIRA-NETTO, A. B.
773 $tActa Physiologiae Plantarum$gv. 35, p. 1989-1996, 2013.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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