Age-dependent differential iron deficiency responses of rosette leaves during reproductive stages in Arabidopsis thaliana.

ABSTRACT: Iron (Fe) is essential for plant development throughout the life cycle. Rosette leaves are responsive to Fe supply in Arabidopsis thaliana. Little is known about the dynamics of Fe deficiency (-Fe) responses of rosette leaves during the reproductive stages. We studied the dynamics of Fe-dependent responses at four consecutive reproductive stages (rosette, bolting, flowering, and mature silique stages, herein named RS, BS, FS, and MS). We examined the growth of rosette leaves, elemental contents, and gene expression patterns of Fe homeostasis genes belonging to differently regulated groups. We determined individual leaf sizes during 7 d of +Fe and -Fe treatment at the RS. Young leaves responded to -Fe with growth inhibition and yellowing. Old and young leaves differed in gene expression pat

SUBMITTER: Ngigi M 

PROVIDER: S-EPMC12509885 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature