Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Flavonoids are essential for combating stress and diseases. Chalcone synthase (CHS) plays a crucial role in the production of flavonoids associated with insect resistance in plants. To gain insight into the function of the CHS gene in plant defense, the PsnCHS7 of Populus simonii × P. nigra was heterologously expressed in Populus davidiana × P. bolleana through Agrobacterium-mediated transformation and 3 transgenic poplar lines were obtained. The quercetin content of transgenic poplar plants was significantly increased compared with that of wild type. The chalcone synthase activity was significantly induced in the 3 transgenic poplar lines compared with that of wild type after feeding by Lymantria dispar larvae. The bioassay further revealed that L. dispar larvae fed on transgenic poplar plants with tardy growth, and the activities of cytochrome P450, glutathione S-transferase, and carboxylesterase were significantly increased and were significantly higher than those of wild type. The results showed that PsnCHS7 played a role in the process of insect-resistant defense of Populus davidiana × P. bolleana, thus provided a theoretical foundation for the cultivation of insect-resistant forests.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/jee/toaf104 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The miR169z-NF-YA5-GPDHc1 module improves drought tolerance by increasing NAD levels to inhibit ROS production in Populus.
New Phytol
September 2025
Peking University Institute of Advanced Agricultural Sciences, Weifang, Shandong, 261325, China.
The microRNA169 (miR169) family and NF-YA transcription factors (TFs) are crucial for drought stress responses. However, the mechanisms by which these factors regulate reactive oxygen species (ROS) homeostasis under drought conditions remain inadequately characterized in Populus. Here, we identified an NF-YA TF, PagNF-YA5, from hybrid poplar 84 K (Populus alba × Populus glandulosa).
View Article and Find Full Text PDFPopulus euphratica PeMAX2 counteracts PeGRP2 to stabilize target mRNAs relating to salt tolerance.
Plant Sci
August 2025
Key Laboratory of Forest and Flower Genetics and Breeding of Ministry of Education, College of Biological Science and Biotechnology, Beijing Forestry University, Beijing 100083, China. Electronic address:
Populus euphratica glycine-rich RNA-binding protein 2 (PeGRP2) has been previously shown to destabilize target mRNAs and negatively regulates salt tolerance of poplar. This study aimed to explore the post-translational regulation of PeGRP2 in the salt-resistant poplar. PeGRP2 was demonstrated to interact with more axillary growth 2 (PeMAX2), an F-box leucine-rich repeat protein.
View Article and Find Full Text PDFAnalysis of Insect Resistance and Ploidy in Hybrid Progeny of Transgenic Triploid Poplar 741.
Plants (Basel)
August 2025
Forest Tree Genetics and Breeding Laboratory, College of Forestry, Hebei Agricultural University, Baoding 071001, China.
With the increasing severity of forest pest problems, breeding insect-resistant varieties has become a crucial task for the sustainable development of forestry. The highly insect-resistant triploid Populus line Pb29, genetically modified with , served as the maternal parent in controlled hybridization with three paternal Populus cultivars. Hybrid progenies were obtained through embryo rescue and tissue culture.
View Article and Find Full Text PDFOver-expression of CsHAK4 from tea plant (Camellia sinensis L.) negatively regulates high salt tolerance in transgenic Arabidopsis.
Plant Sci
August 2025
State Key Laboratory of Tea Plant Germplasm Innovation and Resource Utilization, Anhui Agricultural University, Anhui, Hefei 230036, China. Electronic address:
Members of the HAK/KUP/KT family play crucial roles in potassium (K⁺) uptake, transport, and abiotic stress responses. However, their functions in woody plants remain poorly characterized. Here, we identified CsHAK4, a root-specific K⁺ transporter gene in tea plant (Camellia sinensis L.
View Article and Find Full Text PDFComprehensive genome-wide identification and expression analysis of phenylalanine ammonia-lyase (PAL) gene family in Populus simonii × Populus nigra, and functional study in tobacco under abiotic stress.
Plant Physiol Biochem
August 2025
College of Life Science, Northeast Forestry University, Harbin, 150040, China. Electronic address:
Background: Phenylalanine ammonia-lyase (PAL) is a crucial rate-limiting enzyme in the phenylpropanoid biosynthesis pathway, playing a vital role in plant growth, development, and response to abiotic stresses. Populus simonii × P. nigra is a widely recognized fast-growing species in Northeast China, characterized by strong drought resistance, and saline-alkaline tolerance.
View Article and Find Full Text PDF