Physiological and molecular mechanism of Populus pseudo-cathayana × Populus deltoides response to Hyphantria cunea

Ding, Yutong; Shen, Jiajia; Li, Hanxi; Sun, Yue; Jiang, Tingbo; Kong, Xiangbo; Han, Rui; Zhao, Chunli; Zhang, Xinxin; Zhao, Xiyang

doi:10.1016/j.pestbp.2024.105969

Cited by 3 publications

References 32 publications

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Comprehensive physiological, transcriptomic, and metabolomic analyses revealed the regulation mechanism of evergreen and cold resistance of Pinus koraiensis needles

Li,

Peng

et al. 2024

BMC Plant Biol

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As a significant fruit and timber tree species among conifers, Pinus koraiensis remains it evergreen status throughout the harsh winters of the north, a testament to its intricate and prolonged evolutionary adaptation. This study delves into the annual trends of physiological indicators, gene expression levels, and metabolite accumulation to dissect the seasonal adaptability of P. koraiensis needles. Chlorophyll content reaches its zenith primarily between July and September, whereas carotenoids persist until spring. Additionally, notable seasonal variations are observed in the levels of soluble sugar and protein. Transcriptome data is categorized into four distinct stages: spring (S2), summer (S3-S4), autumn (S5), and winter (S6-S1). The differential expression of transcription factor genes, including bHLH, MYB-related, AP2/ERF, C3H, and NAC, provides insights into the needles’ seasonal adaptations. Analysis of chlorophyll and carotenoid metabolism, sugar metabolism, and the MAPK signaling pathway identifies PSY5 (Cluster-50735.3), AMY13 (Cluster-37114.0), pgm1 (Cluster-46022.0), and MEKK1-1 (Cluster-33069.0) may as potential key genes involved in sustaining the needle’s evergreen nature and cold resistance. Ultimately, a comprehensive annual adaptability map for P. koraiensis is proposed, enhancing understanding of its responses to seasonal variations. Supplementary Information The online version contains supplementary material available at 10.1186/s12870-024-05924-6.

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Comprehensive physiological, transcriptomic, and metabolomic analyses revealed the regulation mechanism of evergreen and cold resistance of Pinus koraiensis needles

Li,

Peng

et al. 2024

BMC Plant Biol

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From Rapid Growth to Decline: The Role of Pachypeltis Micranthus in Suppressing Mikania Micrantha

Wang,

et al. 2024

Preprint

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Dynamic Metabolic Responses of Resistant and Susceptible Poplar Clones Induced by Hyphantria cunea Feeding

Wang,

Qu,

Fan

et al. 2024

Biology

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Poplar trees are significant for both economic and ecological purposes, and the fall webworm (Hyphantria cunea Drury) poses a major threat to their plantation in China. The preliminary resistance assessment in the previous research indicated that there were differences in resistance to the insect among these varieties, with ‘2KEN8’ being more resistant and ‘Nankang’ being more susceptible. The present study analyzed the dynamic changes in the defensive enzymes and metabolic profiles of ‘2KEN8’ and ‘Nankang’ at 24 hours post-infestation (hpi), 48 hpi, and 96 hpi. The results demonstrated that at the same time points, compared to susceptible ‘Nankang’, the leaf consumption by H. cunea in ‘2KEN8’ was smaller, and the larval weight gain was slower, exhibiting clear resistance to the insect. Biochemical analysis revealed that the increased activity of the defensive enzymes in ‘2KEN8’ triggered by the feeding of H. cunea was significantly higher than that of ‘Nankang’. Metabolomics analysis indicated that ‘2KEN8’ initiated an earlier and more intense reprogramming of the metabolic profile post-infestation. In the early stages of infestation, the differential metabolites induced in ‘2KEN8’ primarily included phenolic compounds, flavonoids, and unsaturated fatty acids, which are related to the biosynthesis pathways of phenylpropanoids, flavonoids, unsaturated fatty acids, and jasmonates. The present study is helpful for identifying the metabolic biomarkers for inductive resistance to H. cunea and lays a foundation for the further elucidation of the chemical resistance mechanism of poplar trees against this insect.

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Physiological and molecular mechanism of Populus pseudo-cathayana × Populus deltoides response to Hyphantria cunea

Cited by 3 publications

References 32 publications

Comprehensive physiological, transcriptomic, and metabolomic analyses revealed the regulation mechanism of evergreen and cold resistance of Pinus koraiensis needles

Comprehensive physiological, transcriptomic, and metabolomic analyses revealed the regulation mechanism of evergreen and cold resistance of Pinus koraiensis needles

From Rapid Growth to Decline: The Role of Pachypeltis Micranthus in Suppressing Mikania Micrantha

Dynamic Metabolic Responses of Resistant and Susceptible Poplar Clones Induced by Hyphantria cunea Feeding

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