An isopentenyl transferase transgenic wheat isoline exhibits less seminal root growth impairment and a differential metabolite profile under Cd stress
- Gómez Mansur, Nabila María
- Pena, Liliana Beatriz
- Bossio, Adrian Ezequiel
- Lewi, Dalia Marcela
- Beznec, Ailin Yanina
- Blumwald, Eduardo
- Arbona, Vicent
- Gómez-Cadenas, Aurelio
- Benavides, Maria Patricia
- Gallego, Susana Mabel
DOIAbstract
Cadmium is one of the most important contaminants and it induces severe plant growth restriction. In this study, we analyzed the metabolic changes associated with root growth restriction caused by cadmium in the early seminal root apex of wheat. Our study included two genotypes: the commercial variety ProINTA Federal (WT) and the PSARK::IPT (IPT) line which exhibit high-grade yield performance under water deficit. Root tips of seedlings grown for 72 h without or with 10 μM CdCl2 (Cd-WT and Cd-IPT) were compared. Root length reduction was more severe in Cd-WT than Cd-IPT. Cd decreased superoxide dismutase activity in both lines and increased catalase activity only in the WT. In Cd-IPT, ascorbate and guaiacol peroxidase activities raised comp...
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