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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
05/02/2019 |
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Data da última atualização: |
21/01/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
JIANG, F.; LOPEZ, A.; JEON, S.; FREITAS, S. T. de; YU, Q.; WU, Z.; LABAVITCH, J. M.; TIAN, S.; POWELL, A. L. T.; MITCHAM, E. |
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Afiliação: |
FANGLING JIANG; ALFONSO LOPEZ; SHINJAE JEON; SERGIO TONETTO DE FREITAS, CPATSA; QINGHUI YU; ZHEN WU; JOHN M. LABAVITCH; SHENGKE TIAN; ANN L. T. POWELL; ELIZABETH MITCHAM. |
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Título: |
Disassembly of the fruit cell wall by the ripening-associated polygalacturonase and expansin in fluences tomato cracking. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Horticulture Research, v. 6, p. 1-15, 2019. |
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DOI: |
10.1038/s41438-018-0105-3 |
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Idioma: |
Inglês |
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Conteúdo: |
Fruit cracking is an important problem in horticultural crop production. Polygalacturonase (SlPG) and expansin (SlEXP1) proteins cooperatively disassemble the polysaccharide network of tomato fruit cell walls during ripening and thereby, enable softening. A Golden 2-like (GLK2) transcription factor, SlGLK2 regulates unripe fruit chloroplast development and results in elevated soluble solids and carotenoids in ripe fruit. To determine whether SlPG, SlEXP1, or SlGLK2 influence the rate of tomato fruit cracking, the incidence of fruit epidermal cracking was compared between wild-type, Ailsa Craig (WT) and fruit with suppressed SlPG and SlEXP1 expression (pg/exp) or expressing a truncated nonfunctional Slglk2 (glk2). Treating plants with exogenous ABA increases xylemic flow into fruit. Our results showed that ABA treatment of tomato plants greatly increased cracking of fruit from WT and glk2 mutant, but not from pg/exp genotypes. The pg/exp fruit were firmer, had higher total soluble solids, denser cell walls and thicker cuticles than fruit of the other genotypes. Fruit from the ABA treated pg/exp fruit had cell walls with less water-soluble and more ionically and covalently-bound pectins than fruit from the other lines, demonstrating that ripening-related disassembly of the fruit cell wall, but not elimination of SlGLK2, influences cracking. Cracking incidence was significantly correlated with cell wall and wax thickness, and the content of cell wall protopectin and cellulose, but not with Ca2+ content. MenosFruit cracking is an important problem in horticultural crop production. Polygalacturonase (SlPG) and expansin (SlEXP1) proteins cooperatively disassemble the polysaccharide network of tomato fruit cell walls during ripening and thereby, enable softening. A Golden 2-like (GLK2) transcription factor, SlGLK2 regulates unripe fruit chloroplast development and results in elevated soluble solids and carotenoids in ripe fruit. To determine whether SlPG, SlEXP1, or SlGLK2 influence the rate of tomato fruit cracking, the incidence of fruit epidermal cracking was compared between wild-type, Ailsa Craig (WT) and fruit with suppressed SlPG and SlEXP1 expression (pg/exp) or expressing a truncated nonfunctional Slglk2 (glk2). Treating plants with exogenous ABA increases xylemic flow into fruit. Our results showed that ABA treatment of tomato plants greatly increased cracking of fruit from WT and glk2 mutant, but not from pg/exp genotypes. The pg/exp fruit were firmer, had higher total soluble solids, denser cell walls and thicker cuticles than fruit of the other genotypes. Fruit from the ABA treated pg/exp fruit had cell walls with less water-soluble and more ionically and covalently-bound pectins than fruit from the other lines, demonstrating that ripening-related disassembly of the fruit cell wall, but not elimination of SlGLK2, influences cracking. Cracking incidence was significantly correlated with cell wall and wax thickness, and the content of cell wall protopectin and cellulose, ... Mostrar Tudo |
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Palavras-Chave: |
Proteínas poligalacturonase. |
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Thesagro: |
Distúrbio Fisiológico; Hortaliça; Tomate. |
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Thesaurus Nal: |
Fruit cracking; Horticultural crops. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/192159/1/Tonetto.pdf
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Marc: |
LEADER 02431naa a2200313 a 4500
001 2105533
005 2020-01-21
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1038/s41438-018-0105-3$2DOI
100 1 $aJIANG, F.
245 $aDisassembly of the fruit cell wall by the ripening-associated polygalacturonase and expansin in fluences tomato cracking.$h[electronic resource]
260 $c2019
520 $aFruit cracking is an important problem in horticultural crop production. Polygalacturonase (SlPG) and expansin (SlEXP1) proteins cooperatively disassemble the polysaccharide network of tomato fruit cell walls during ripening and thereby, enable softening. A Golden 2-like (GLK2) transcription factor, SlGLK2 regulates unripe fruit chloroplast development and results in elevated soluble solids and carotenoids in ripe fruit. To determine whether SlPG, SlEXP1, or SlGLK2 influence the rate of tomato fruit cracking, the incidence of fruit epidermal cracking was compared between wild-type, Ailsa Craig (WT) and fruit with suppressed SlPG and SlEXP1 expression (pg/exp) or expressing a truncated nonfunctional Slglk2 (glk2). Treating plants with exogenous ABA increases xylemic flow into fruit. Our results showed that ABA treatment of tomato plants greatly increased cracking of fruit from WT and glk2 mutant, but not from pg/exp genotypes. The pg/exp fruit were firmer, had higher total soluble solids, denser cell walls and thicker cuticles than fruit of the other genotypes. Fruit from the ABA treated pg/exp fruit had cell walls with less water-soluble and more ionically and covalently-bound pectins than fruit from the other lines, demonstrating that ripening-related disassembly of the fruit cell wall, but not elimination of SlGLK2, influences cracking. Cracking incidence was significantly correlated with cell wall and wax thickness, and the content of cell wall protopectin and cellulose, but not with Ca2+ content.
650 $aFruit cracking
650 $aHorticultural crops
650 $aDistúrbio Fisiológico
650 $aHortaliça
650 $aTomate
653 $aProteínas poligalacturonase
700 1 $aLOPEZ, A.
700 1 $aJEON, S.
700 1 $aFREITAS, S. T. de
700 1 $aYU, Q.
700 1 $aWU, Z.
700 1 $aLABAVITCH, J. M.
700 1 $aTIAN, S.
700 1 $aPOWELL, A. L. T.
700 1 $aMITCHAM, E.
773 $tHorticulture Research$gv. 6, p. 1-15, 2019.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
17/03/2023 |
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Data da última atualização: |
17/03/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SILVA, M. R. da; OLIVEIRA, S. N. de; MARTINS, E. de S.; CARVALHO JUNIOR, O. A. de; MITJA, D.; BECQUER, T.; FARIAS, M. F. R.; CARDOSO, W. dos S.; GOMES, R. A. T. |
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Afiliação: |
MIRIAM RODRIGUES DA SILVA, UNIVERSIDADE DE BRASÍLIA; SANDRO NUNES DE OLIVEIRA, UNIVERSIDADE DE BRASÍLIA; EDER DE SOUZA MARTINS, CPAC; OSMAR ABÍLIO DE CARVALHO JÚNIOR, UNIVERSIDADE DE BRASÍLIA; DANIELLE MITJA, INSTITUT DE RECHERCHE POUR LE DÉVELOPPEMENT; THIERRY BECQUER, INSTITUT DE RECHERCHE POUR LE DÉVELOPPEMENT; MARCUS FÁBIO RIBEIRO FARIAS, UNIVERSIDADE DE BRASÍLIA; WELLINGTON DOS SANTOS CARDOSO, CPAC; ROBERTO ARNALDO TRANCOSO GOMES, UNIVERSIDADE DE BRASIÍLIA. |
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Título: |
Análise da ocorrência do babaçu na Bacia do Rio Cocal em Natividade-TO pela identificação de padrões de paisagens em imagens ASTER. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 13., 2007, Florianópolis. Anais... Florianópolis: INPE; SELPER, 2007. |
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Páginas: |
p. 6215-6222 |
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Idioma: |
Português |
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Conteúdo: |
ABSTRACT - The present paper aims to evaluate the advantages of the ASTER sensor to detect landscape pattern of the palm tree (babaçu) from spectral analysis. The study area is located in the Cocal river basin, Natividade - TO. The methodology can be divided in three stages: (a) pre-processing, (b) detection of the endmembers and (c) spectral classification. The images were acquired with atmosphere correction from AST07 product. The Level 2 surface reflectance data set (AST07) contains surface reflectance for all of the nine VNIR and SWIR bands at 15-m and 30-m resolutions, respectively. Endmembers were detected from three steps: (a) spectral reduction by the Minimum Noise Fraction (MNF) transformation, (b) spatial reduction by the Pixel Purity Index (PPI) and (c) manual identification of the endmembers using the N-dimensional visualizer. The methodology allowed to separate the main types of physiognomy in the study area and determinated the landscape pattern occurrences of the palm tree (babaçu) . |
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Thesagro: |
Babaçu; Biodiversidade; Cerrado; Mistura. |
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Thesaurus NAL: |
Savannas. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152467/1/Analise-ocorrencia-babacu-2007.pdf
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Marc: |
LEADER 01922nam a2200277 a 4500
001 2152467
005 2023-03-17
008 2007 bl uuuu u00u1 u #d
100 1 $aSILVA, M. R. da
245 $aAnálise da ocorrência do babaçu na Bacia do Rio Cocal em Natividade-TO pela identificação de padrões de paisagens em imagens ASTER.$h[electronic resource]
260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 13., 2007, Florianópolis. Anais... Florianópolis: INPE; SELPER$c2007
300 $ap. 6215-6222
520 $aABSTRACT - The present paper aims to evaluate the advantages of the ASTER sensor to detect landscape pattern of the palm tree (babaçu) from spectral analysis. The study area is located in the Cocal river basin, Natividade - TO. The methodology can be divided in three stages: (a) pre-processing, (b) detection of the endmembers and (c) spectral classification. The images were acquired with atmosphere correction from AST07 product. The Level 2 surface reflectance data set (AST07) contains surface reflectance for all of the nine VNIR and SWIR bands at 15-m and 30-m resolutions, respectively. Endmembers were detected from three steps: (a) spectral reduction by the Minimum Noise Fraction (MNF) transformation, (b) spatial reduction by the Pixel Purity Index (PPI) and (c) manual identification of the endmembers using the N-dimensional visualizer. The methodology allowed to separate the main types of physiognomy in the study area and determinated the landscape pattern occurrences of the palm tree (babaçu) .
650 $aSavannas
650 $aBabaçu
650 $aBiodiversidade
650 $aCerrado
650 $aMistura
700 1 $aOLIVEIRA, S. N. de
700 1 $aMARTINS, E. de S.
700 1 $aCARVALHO JUNIOR, O. A. de
700 1 $aMITJA, D.
700 1 $aBECQUER, T.
700 1 $aFARIAS, M. F. R.
700 1 $aCARDOSO, W. dos S.
700 1 $aGOMES, R. A. T.
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Embrapa Cerrados (CPAC) |
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