Heterologous expression of physic nut JcHDZ25 confers tolerance to drought stress in transgenic rice.

ABSTRACT:

Background

The HD-Zip family of plant-specific transcription factors coordinates developmental processes and abiotic stress adaptation, including drought tolerance in bioenergy crops such as physic nut. Although HD-Zip proteins are known regulators of stress responses, the functional roles of physic nut HD-Zip genes in drought adaptation remain uncharacterized.

Results

In this study, we functionally characterized JcHDZ25, a drought-inducible HD-Zip I gene from physic nut, which is predominantly expressed in roots and upregulated by ABA and drought. Subcellular localization and transcriptional activity assays confirmed that JcHDZ25 localized to the nucleus and exhibited intrinsic transcriptional activation. Transgenic rice overexpressing JcHDZ25 displayed enhanced drought tol

SUBMITTER: Tang Y 

PROVIDER: S-EPMC11992789 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature