Overexpression of snapdragon Delila (Del) gene in tobacco enhances anthocyanin accumulation and abiotic stress tolerance.

ABSTRACT:

Background

Rosea1 (Ros1) and Delila (Del) co-expression controls anthocyanin accumulation in snapdragon flowers, while their overexpression in tomato strongly induces anthocyanin accumulation. However, little data exist on how Del expression alone influences anthocyanin accumulation.

Results

In tobacco (Nicotiana tabacum 'Xanthi'), Del expression enhanced leaf and flower anthocyanin production through regulating NtCHS, NtCHI, NtF3H, NtDFR, and NtANS transcript levels. Transgenic lines displayed different anthocyanin colors (e.g., pale red: T₀-P, red: T₀-R, and strong red: T₀-S), resulting from varying levels of biosynthetic gene transcripts. Under salt stress, the T₂ generation had higher total polyphenol content, radical (DPPH, AB

SUBMITTER: Naing AH 

PROVIDER: S-EPMC5364578 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature