Carotenoid-derived Bioactive Metabolites Shape Plant Root Architecture to Adapt to the Rhizospheric Environments

Overview

Journal Front Plant Sci

Date 2022 Nov 17

PMID 36388571

Authors

Danping Ke

Jinggong Guo

Kun Li

Yujie Wang

Xiaomeng Han

Weiwei Fu

Yuchen Miao

Kun-Peng Jia

Affiliations

Soon will be listed here.

Abstract

Roots are important plant organs for the uptake of water and nutrient elements. Plant root development is finely regulated by endogenous signals and environmental cues, which shapes the root system architecture to optimize the plant growth and adapt to the rhizospheric environments. Carotenoids are precursors of plant hormones strigolactones (SLs) and ABA, as well as multiple bioactive molecules. Numerous studies have demonstrated SLs and ABA as essential regulators of plant root growth and development. In addition, a lot carotenoid-derived bioactive metabolites are recently identified as plant root growth regulators, such as anchorene, β-cyclocitral, retinal and zaxinone. However, our knowledge on how these metabolites affect the root architecture to cope with various stressors and how they interact with each other during these processes is still quite limited. In the present review, we will briefly introduce the biosynthesis of carotenoid-derived root regulators and elaborate their biological functions on root development and architecture, focusing on their contribution to the rhizospheric environmental adaption of plants.

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