Microalgae enhance cadmium accumulation in <i>Perilla frutescens</i>: root structural adaptation and secretion-mediated detoxification.

ABSTRACT:

Introduction

Cadmium (Cd) phytoremediation is often constrained by the low accumulation capacity and limited stress tolerance of most plant species. Developing approaches to overcome these limitations is essential for more efficient phytoremediation.

Methods

The effect of microalgae supplementation on Cd phytoextraction in Perilla frutescens was evaluated under Cd stress, with plant growth, Cd accumulation, and root physiological, structural, and metabolic responses examined to elucidate the underlying mechanisms.

Results

Microalgae supplementation significantly enhanced total plant biomass by 37.43% while increasing Cd accumulation by 20.72% in roots, 25.87% in stems, and 112.29% in leaves relative to Cd-only treatment. These improvements were closely associat

SUBMITTER: Ren Y 

PROVIDER: S-EPMC12436388 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature