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Review
. 2021 Jun 26;22(13):6890.
doi: 10.3390/ijms22136890.

Plant Secondary Metabolites with an Overview of Populus

Affiliations
Review

Plant Secondary Metabolites with an Overview of Populus

Ali Movahedi et al. Int J Mol Sci. .

Abstract

Populus trees meet continuous difficulties from the environment through their life cycle. To warrant their durability and generation, Populus trees exhibit various types of defenses, including the production of secondary metabolites. Syntheses derived from the shikimate-phenylpropanoid pathway are a varied and plentiful class of secondary metabolites manufactured in Populus. Amongst other main classes of secondary metabolites in Populus are fatty acid and terpenoid-derivatives. Many of the secondary metabolites made by Populus trees have been functionally described. Any others have been associated with particular ecological or biological processes, such as resistance against pests and microbial pathogens or acclimatization to abiotic stresses. Still, the functions of many Populus secondary metabolites are incompletely understood. Furthermore, many secondary metabolites have therapeutic effects, leading to more studies of secondary metabolites and their biosynthesis. This paper reviews the biosynthetic pathways and therapeutic impacts of secondary metabolites in Populus using a genomics approach. Compared with bacteria, fewer known pathways produce secondary metabolites in Populus despite P. trichocarpa having had its genome sequenced.

Keywords: Populus; biosynthetic pathways; secondary metabolites.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Structures of the critical types of secondary metabolites in Populus: (A) flavone and flavonol metabolites; (B) phenolic glycoside metabolites; (C) hydroxycinnamate, and (D) terpenoid metabolites.
Figure 2
Figure 2
Salicortin biosynthesis pathway.
Figure 3
Figure 3
Terpenoid pathway.

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