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Plant hormone profiling of scion and rootstock incision sites and intra- and inter-family graft junctions in Nicotiana benthamiana.
Kawaguchi, Kohei; Notaguchi, Michitaka; Okayasu, Koji; Sawai, Yu; Kojima, Mikiko; Takebayashi, Yumiko; Sakakibara, Hitoshi; Otagaki, Shungo; Matsumoto, Shogo; Shiratake, Katsuhiro.
Afiliação
  • Kawaguchi K; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan.
  • Notaguchi M; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan.
  • Okayasu K; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan.
  • Sawai Y; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan.
  • Kojima M; RIKEN Center for Sustainable Resource Science, Plant Productivity Systems Research Group, Yokohama, Japan.
  • Takebayashi Y; RIKEN Center for Sustainable Resource Science, Plant Productivity Systems Research Group, Yokohama, Japan.
  • Sakakibara H; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan.
  • Otagaki S; RIKEN Center for Sustainable Resource Science, Plant Productivity Systems Research Group, Yokohama, Japan.
  • Matsumoto S; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan.
  • Shiratake K; Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan.
Plant Signal Behav ; 19(1): 2331358, 2024 Dec 31.
Article em En | MEDLINE | ID: mdl-38513064
ABSTRACT
Many previous studies have suggested that various plant hormones play essential roles in the grafting process. In this study, to understand the plant hormones that accumulate in the graft junctions, whether these are supplied from the scion or rootstock, and how these hormones play a role in the grafting process, we performed a hormonome analysis that accumulated in the incision site of the upper plants from the incision as "ungrafted scion" and lower plants from the incision as "ungrafted rootstock" in Nicotiana benthamiana. The results revealed that indole-3-acetic acid (IAA) and gibberellic acid (GA), which regulate cell division; abscisic acid (ABA) and jasmonic acid (JA), which regulate xylem formation; cytokinin (CK), which regulates callus formation, show different accumulation patterns in the incision sites of the ungrafted scion and rootstock. In addition, to try discussing the differences in the degree and speed of each event during the grafting process between intra- and inter-family grafting by determining the concentration and accumulation timing of plant hormones in the graft junctions, we performed hormonome analysis of graft junctions of intra-family grafted plants with N. benthamiana as scion and Solanum lycopersicum as rootstock (Nb/Sl) and inter-family grafted plants with N. benthamiana as scion and Arabidopsis thaliana as rootstock (Nb/At), using the ability of Nicotiana species to graft with many plant species. The results revealed that ABA and CK showed different accumulation timings; IAA, JA, and salicylic acid (SA) showed similar accumulation timings, while different accumulated concentrations in the graft junctions of Nb/Sl and Nb/At. This information is important for understanding the molecular mechanisms of plant hormones in the grafting process and the differences in molecular mechanisms between intra- and inter-family grafting.
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Texto completo: 1 Coleções: 01-internacional Temas: Geral Base de dados: MEDLINE Assunto principal: Arabidopsis / Solanum lycopersicum Idioma: En Revista: Plant Signal Behav Assunto da revista: BOTANICA / FISIOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Japão

Texto completo: 1 Coleções: 01-internacional Temas: Geral Base de dados: MEDLINE Assunto principal: Arabidopsis / Solanum lycopersicum Idioma: En Revista: Plant Signal Behav Assunto da revista: BOTANICA / FISIOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Japão