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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
09/07/2013 |
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Data da última atualização: |
19/05/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NEVES, D. M.; COELHO FILHO, M. A.; BELLETE, B. S.; SILVA, M. F. G. F.; SOUZA, D. T.; SOARES FILHO, W. dos S.; COSTA, M. G. C.; GESTEIRA, A. S. |
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Afiliação: |
D. M. NEVES, UESC; MAURICIO ANTONIO COELHO FILHO, CNPMF; B. S. BELLETE, UFSC; M. F. G. F. SILVA, UFSC; D. T. SOUZA, UFSC; WALTER DOS SANTOS SOARES FILHO, CNPMF; M. G. C. COSTA, UESC; A. S. GESTEIRA, UESC. |
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Título: |
Comparative study of putative 9-cis-epoxycarotenoid dioxygenase and abscisic acid accumulation in the responses of Sunki mandarin and Rangpur lime to water deficit. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Molecular Biology Reports, May, 2013. |
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ISSN: |
0301-4851 |
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DOI: |
10.1007/s11033-013-2634-z |
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Idioma: |
Inglês |
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Conteúdo: |
Abscisic acid is a plant hormone that participates in essential plant physiological processes, especially during adaptation to many environmental stresses, such as water deficit. The relationship between ABA accumulation and the expression of putative carotenoid cleavage dioxygenase (CCD) genes was investigated in the pot-cultivated leaves and roots of the 'Rangpur' lime and 'Sunki Maravilha' mandarin plants. Transpiration, stomatal resistance and leaf growth were evaluated when these genotypes were subjected to continuous water deficit. Under water deficit conditions, the 'Rangpur' lime extracts used greater amounts of water when compared to the 'Sunki Maravilha' plants, which reached the greatest stomatal resistance 5 days before 'Rangpur' lime. When subjected to water deficit, the roots and leaves of 'Sunki Maravilha' showed a progressive increase in ABA accumulation; however, in 'Rangpur' lime, alternations between high and low ABA concentrations were observed. These results suggest a retroactive feeding regulation by ABA. In 'Rangpur' lime the NCED2, NCED3 and CCD4a genes were expressed at the highest levels in the roots, and NCED5 was highly expressed in the leaves; in 'Sunki Maravilha', the NCED2 and NCED5 genes were most highly expressed in the roots, and NCED2 was most highly expressed in the leaves. However, for both genotypes, the transcription of these genes only correlated with ABA accumulation during the most severe water deficit conditions. The 'Rangpur' lime behaved as a vigorous rootstock; the leaf growth remained unaltered even when water was scarce. However, 'Sunki Maravilha' adaptation was based on the equilibrium of the response between the root and the aerial tissues due to water restriction. The use of the Sunki mandarin in combination with a scion with similar characteristics as its own, which responds to water deficit stress by accumulating ABA in the leaves, may display good drought tolerance under field conditions. MenosAbscisic acid is a plant hormone that participates in essential plant physiological processes, especially during adaptation to many environmental stresses, such as water deficit. The relationship between ABA accumulation and the expression of putative carotenoid cleavage dioxygenase (CCD) genes was investigated in the pot-cultivated leaves and roots of the 'Rangpur' lime and 'Sunki Maravilha' mandarin plants. Transpiration, stomatal resistance and leaf growth were evaluated when these genotypes were subjected to continuous water deficit. Under water deficit conditions, the 'Rangpur' lime extracts used greater amounts of water when compared to the 'Sunki Maravilha' plants, which reached the greatest stomatal resistance 5 days before 'Rangpur' lime. When subjected to water deficit, the roots and leaves of 'Sunki Maravilha' showed a progressive increase in ABA accumulation; however, in 'Rangpur' lime, alternations between high and low ABA concentrations were observed. These results suggest a retroactive feeding regulation by ABA. In 'Rangpur' lime the NCED2, NCED3 and CCD4a genes were expressed at the highest levels in the roots, and NCED5 was highly expressed in the leaves; in 'Sunki Maravilha', the NCED2 and NCED5 genes were most highly expressed in the roots, and NCED2 was most highly expressed in the leaves. However, for both genotypes, the transcription of these genes only correlated with ABA accumulation during the most severe water deficit conditions. The 'Rangpur' lime ... Mostrar Tudo |
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Palavras-Chave: |
Tangerina Sunki Maravilha. |
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Thesagro: |
Ácido abscísico; LImão cravo; Tangerina. |
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Thesaurus Nal: |
Abscisic acid; Citrus. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02914naa a2200301 a 4500
001 1961657
005 2023-05-19
008 2013 bl uuuu u00u1 u #d
022 $a0301-4851
024 7 $a10.1007/s11033-013-2634-z$2DOI
100 1 $aNEVES, D. M.
245 $aComparative study of putative 9-cis-epoxycarotenoid dioxygenase and abscisic acid accumulation in the responses of Sunki mandarin and Rangpur lime to water deficit.$h[electronic resource]
260 $c2013
520 $aAbscisic acid is a plant hormone that participates in essential plant physiological processes, especially during adaptation to many environmental stresses, such as water deficit. The relationship between ABA accumulation and the expression of putative carotenoid cleavage dioxygenase (CCD) genes was investigated in the pot-cultivated leaves and roots of the 'Rangpur' lime and 'Sunki Maravilha' mandarin plants. Transpiration, stomatal resistance and leaf growth were evaluated when these genotypes were subjected to continuous water deficit. Under water deficit conditions, the 'Rangpur' lime extracts used greater amounts of water when compared to the 'Sunki Maravilha' plants, which reached the greatest stomatal resistance 5 days before 'Rangpur' lime. When subjected to water deficit, the roots and leaves of 'Sunki Maravilha' showed a progressive increase in ABA accumulation; however, in 'Rangpur' lime, alternations between high and low ABA concentrations were observed. These results suggest a retroactive feeding regulation by ABA. In 'Rangpur' lime the NCED2, NCED3 and CCD4a genes were expressed at the highest levels in the roots, and NCED5 was highly expressed in the leaves; in 'Sunki Maravilha', the NCED2 and NCED5 genes were most highly expressed in the roots, and NCED2 was most highly expressed in the leaves. However, for both genotypes, the transcription of these genes only correlated with ABA accumulation during the most severe water deficit conditions. The 'Rangpur' lime behaved as a vigorous rootstock; the leaf growth remained unaltered even when water was scarce. However, 'Sunki Maravilha' adaptation was based on the equilibrium of the response between the root and the aerial tissues due to water restriction. The use of the Sunki mandarin in combination with a scion with similar characteristics as its own, which responds to water deficit stress by accumulating ABA in the leaves, may display good drought tolerance under field conditions.
650 $aAbscisic acid
650 $aCitrus
650 $aÁcido abscísico
650 $aLImão cravo
650 $aTangerina
653 $aTangerina Sunki Maravilha
700 1 $aCOELHO FILHO, M. A.
700 1 $aBELLETE, B. S.
700 1 $aSILVA, M. F. G. F.
700 1 $aSOUZA, D. T.
700 1 $aSOARES FILHO, W. dos S.
700 1 $aCOSTA, M. G. C.
700 1 $aGESTEIRA, A. S.
773 $tMolecular Biology Reports, May, 2013.
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