ArticleAnnals of botany2020
Overexpression of PtHMGR enhances drought and salt tolerance of poplar.
Article in Annals of botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 24 citations in OpenAlex.
- GmHMGR6 enhances salt stress tolerance in soybean through modulation of nitrogen metabolism.Plant cell reports · 2026Article
- Article
- Untargeted metabolomics reveals anion and organ-specific metabolic responses of salinity tolerance in willow.The Plant journal : for cell and molecular biology · 2025Article
- HMGR Modulates Strawberry Fruit Coloration and Aroma Through Regulating Terpenoid and Anthocyanin Pathways.Foods (Basel, Switzerland) · 2025Article
- Comprehensive genome-wide analysis of theFrontiers in plant science · 2025Article
- Genome-Wide Identification and Characterization of thePlants (Basel, Switzerland) · 2024Article
- 3-Hydroxy-3-methylglutaryl coenzyme A reductase genes from Glycine max regulate plant growth and isoprenoid biosynthesis.Scientific reports · 2023Article
- Responses to Drought Stress in Poplar: What Do We Know and What Can We Learn?Life (Basel, Switzerland) · 2023Review
- Article
- Plant Secondary Metabolites with an Overview ofInternational journal of molecular sciences · 2021Review
- Advances and Perspectives of Transgenic Technology and Biotechnological Application in Forest Trees.Frontiers in plant science · 2021Review
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsSoil salinization and aridification are swiftly engulfing the limited land resources on which humans depend, restricting agricultural production. Hydroxy-3-methylglutaryl coenzyme A reductase (HMGR) is important in the biosynthesis of terpenoids, which are involved in plant growth, development and responses to environmental stresses. This study aimed to provide guidance for producing salt- and drought-resistant poplar.
methodsA protein expression system was used to obtain PtHMGR protein, and high-performance liquid chromatography was used to detect the activity of PtHMGR protein in vitro. In addition, a simplified version of the leaf infection method was used for transformation of 'Nanlin895' poplar (Populus×euramericana). qRT-PCR was used to identify expression levels of genes. KEY
resultsPtHMGR catalysed a reaction involving HMG-CoA and NADPH to form mevalonate. Overexpression of PtHMGR in Populus × euramericana 'Nanlin895' improved drought and salinity tolerance. In the presence of NaCl and PEG6000, the rates of rooting and survival of PtHMGR-overexpressing poplars were higher than those of wild-type poplars. The transgenic lines also exhibited higher proline content and peroxidase and superoxide dismutase activities, and a lower malondialdehyde level under osmotic stress. In addition, the expression of genes related to reactive oxygen species (ROS) scavenging and formation was altered by osmotic stress. Moreover, the effect of osmotic stress on transcript levels of stress-related genes differed between the transgenic and wild-type poplars.
conclusionPtHMGR catalysed a reaction involving HMG-CoA and NADPH to form mevalonate in vitro. Overexpression of PtHMGR promoted root development, increased the expression of ROS scavenging-related genes, decreased the expression of ROS formation-related genes, and increased the activity of antioxidant enzymes in transgenic poplars, enhancing their tolerance of osmotic stress. In addition, overexpression of PtHMGR increased expression of the stress-related genes KIN1, COR15 and AAO3 and decreased that of ABI, MYB, MYC2 and RD22, enhancing the stress resistance of poplar.
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