Regulation of early seedling establishment and root development in Arabidopsis thaliana by light and carbohydrates.

ABSTRACT:

Main conclusion

Root development is regulated by sucrose and light during early seedling establishment through changes in the auxin response and chromatin topology. Light is a key environmental signal that regulates plant growth and development. The impact of light on development is primarily analyzed in the above-ground tissues, but little is known about the mechanisms by which light shapes the architecture of underground roots. Our study shows that carbohydrate starvation during skotomorphogenesis is accompanied by compaction of nuclei in the root apical meristem, which prevents cell cycle progression and leads to irreversible root differentiation in the absence of external carbohydrates, as evidenced by the lack of DNA replication and increased numbers of nuclei with specific ch

SUBMITTER: Pasternak T 

PROVIDER: S-EPMC10480265 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature