# Chloroplast budding mediates β-carotene transport for early stage astaxanthin hyperaccumulation in microalgae

**Authors:** Haiyan Ma, Zhaokun Wang, Feng Ge, Cheng-Cai Zhang

PMC · DOI: 10.1093/plphys/kiaf423 · Plant Physiology · 2025-10-13

## TL;DR

This paper explains how microalgae transport beta-carotene through chloroplast budding to produce more astaxanthin.

## Contribution

The study reveals chloroplast budding as a novel mechanism for beta-carotene transport in microalgae.

## Key findings

- Chloroplast membrane budding facilitates beta-carotene transport to the cytoplasm.
- This process supports early-stage astaxanthin hyperaccumulation in microalgae.

## Abstract

β-Carotene, the precursor of the high-value carotenoid astaxanthin, is transported into the cytoplasm via chloroplast membrane budding.

## Linked entities

- **Chemicals:** β-carotene (PubChem CID 573), astaxanthin (PubChem CID 5281224)

## Full-text entities

- **Chemicals:** astaxanthin (MESH:C005948), beta-carotene (MESH:D019207)

## Full text

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## Figures

2 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12516493/full.md

## References

20 references — full list in the complete paper: https://tomesphere.com/paper/PMC12516493/full.md

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Source: https://tomesphere.com/paper/PMC12516493