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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
11/04/1997 |
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Data da última atualização: |
17/02/2020 |
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Autoria: |
GARCIA-GOMEZ, M.L.; SANCHEZ-ROMERO, C.; BARCELO-MUNOZ, A.; HEREDIA, A.; PLIEGO-ALFARO, F. |
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Título: |
Levels of endogenous indole-3-acetic acid and indole-3-acetyl-aspartic acid during adventious rooting in avocado microcuttings. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
Journal of Experimental Botany, v. 45 n. 275, p. 865-870, Jun. 1994. |
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Idioma: |
Inglês |
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Conteúdo: |
Quantification of endogenous IAA and IAAsp was carried out during adventitious root formation in avocado microcuttings. Both auxin and conjugate were monitored in control cuttings (rooted in the absence of auxin) as well as in cuttings treated with a rooting promotor (IBA) or an auxin transport inhibitor (TIBA). Additionally, a histological study to follow root differentation was carried out. In control cuttings IAA levels remained constant throughout the rooting process, however, in IBA-treated cuttings IAA levels increased 2-fold during the first 6 d. Addition of 200 uM TIBA induced a slight decrease of IAA levels and inhibited root formation. As for IAAsp levels, both control and IBA-treated cuttings showed a big increase before root differentiation ocurred and as the process went on, a progressive decrease took place. However, in TIBA-treated cuttings IAAsp levels not only did not increase but diminished progressively during the process. The role of auxin conjugates during the rooting process of avocado in discussed. |
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Palavras-Chave: |
Avocado; Estaquia; IAA; IAAsp. |
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Thesagro: |
Abacate; Enraizamento. |
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Thesaurus Nal: |
rooting. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01760naa a2200253 a 4500
001 1051768
005 2020-02-17
008 1994 bl --- 0-- u #d
100 1 $aGARCIA-GOMEZ, M.L.
245 $aLevels of endogenous indole-3-acetic acid and indole-3-acetyl-aspartic acid during adventious rooting in avocado microcuttings.
260 $c1994
520 $aQuantification of endogenous IAA and IAAsp was carried out during adventitious root formation in avocado microcuttings. Both auxin and conjugate were monitored in control cuttings (rooted in the absence of auxin) as well as in cuttings treated with a rooting promotor (IBA) or an auxin transport inhibitor (TIBA). Additionally, a histological study to follow root differentation was carried out. In control cuttings IAA levels remained constant throughout the rooting process, however, in IBA-treated cuttings IAA levels increased 2-fold during the first 6 d. Addition of 200 uM TIBA induced a slight decrease of IAA levels and inhibited root formation. As for IAAsp levels, both control and IBA-treated cuttings showed a big increase before root differentiation ocurred and as the process went on, a progressive decrease took place. However, in TIBA-treated cuttings IAAsp levels not only did not increase but diminished progressively during the process. The role of auxin conjugates during the rooting process of avocado in discussed.
650 $arooting
650 $aAbacate
650 $aEnraizamento
653 $aAvocado
653 $aEstaquia
653 $aIAA
653 $aIAAsp
700 1 $aSANCHEZ-ROMERO, C.
700 1 $aBARCELO-MUNOZ, A.
700 1 $aHEREDIA, A.
700 1 $aPLIEGO-ALFARO, F.
773 $tJournal of Experimental Botany$gv. 45 n. 275, p. 865-870, Jun. 1994.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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