Pulse Brain · Growing Health Evidence Index
Peer-reviewed

Genomic and Functional Characterization of Acetolactate Synthase (ALS) Genes in Stress Adaptation of the Noxious Weed Amaranthus palmeri

Jiao Ren, Mengyuan Song, Daniel Bimpong, Fulian Wang, Wang Chen, Dongfang Ma, Linfeng Du

Plants · 2025

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Summary

Acetolactate synthase (ALS) is an important enzyme in plant branched-chain amino acid biosynthesis and the target of several major herbicide classes. Despite its agronomic importance, the role of ALS genes in stress adaptation in the invasive weed <i>Amaranthus palmeri</i> remains unstudied. In this study, four <i>ApALS</i> genes with high motif conservation were identified and analyzed in <i>A. palmeri</i>. Phylogenetic analysis classified ApALS and other plant ALS proteins into two distinct clades, and the ApALS proteins were predicted to localize to the chloroplast. Gene expression analysis demonstrated that <i>ApALS</i> genes are responsive to multiple stresses, including salt, heat, osmotic stress, glufosinate ammonium, and the ALS-inhibiting herbicide imazethapyr, suggesting roles in

Source type
Peer-reviewed study
DOI
10.3390/plants14193088
Catalogue ID
SNmoi1qba6-fxx6s6
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