Defense response mechanisms of Pinus koraiensis against Bursaphelenchus xylophilus

Bursaphelenchus xylophilus (Steiner & Buhrer) Nickle is a widely distributed quarantine nematode that causes pine wilt disease, posing serious threats to pine forests worldwide. Nevertheless, the mechanism underlying pine resistance remains ambiguous. Research was conducted to reveal the physiol...

Description complète

Détails bibliographiques
Publié dans:Plant disease. - 1997. - (2025) vom: 13. Sept.
Auteur principal: Wang, Yijing (Auteur)
Autres auteurs: Lu, Miaomiao, Chen, Hongna, Wang, Hongling, Jiang, Yingying, Li, Feifei, Zheng, Shuang, Wang, Jiaqing, Li, Debin
Format: Article en ligne
Langue:English
Publié: 2025
Accès à la collection:Plant disease
Sujets:Journal Article Bursaphelenchus xylophilus Causal Agent Crop Type Disease management Nematodes Subject Areas Trees cultivar/resistance forest
LEADER 01000naa a22002652c 4500
001 NLM392500728
003 DE-627
005 20250914232539.0
007 cr uuu---uuuuu
008 250914s2025 xx |||||o 00| ||eng c
024 7 |a 10.1094/PDIS-08-24-1704-RE  |2 doi 
028 5 2 |a pubmed25n1566.xml 
035 |a (DE-627)NLM392500728 
035 |a (NLM)40944414 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Wang, Yijing  |e verfasserin  |4 aut 
245 1 0 |a Defense response mechanisms of Pinus koraiensis against Bursaphelenchus xylophilus 
264 1 |c 2025 
336 |a Text  |b txt  |2 rdacontent 
337 |a ƒaComputermedien  |b c  |2 rdamedia 
338 |a ƒa Online-Ressource  |b cr  |2 rdacarrier 
500 |a Date Revised 13.09.2025 
500 |a published: Print-Electronic 
500 |a Citation Status Publisher 
520 |a Bursaphelenchus xylophilus (Steiner & Buhrer) Nickle is a widely distributed quarantine nematode that causes pine wilt disease, posing serious threats to pine forests worldwide. Nevertheless, the mechanism underlying pine resistance remains ambiguous. Research was conducted to reveal the physiological and molecular mechanisms involved in Pinus koraiensis resistance to B. xylophilus infection. The changes in reactive oxidative species, stress hormones, osmotic regulators, antioxidant enzymes, antioxidants, and transcriptomes were monitored. The results showed that after being inoculated with B. xylophilus for 30 days, some needles of P. koraiensis showed external symptoms of chlorosis, wilting, and drooping. B. xylophilus induced a higher level of signal transduction molecules overall, such as hydrogen peroxide (H2O2), superoxide anion radical (O2-), salicylic acid (SA), and jasmonic acid (JA). Besides, B. xylophilus caused a reduction in superoxide dismutase (SOD) and catalase (CAT) activities from 3 days after inoculation but increased peroxidase (POD) activity at 1, 3, and 30 days after inoculation. Following B. xylophilus infection, we also observed coordinated metabolic changes: significant reduction in soluble sugar (SS) and total phenolic contrasting with pronounced accumulation of proline (Pro) and flavonoids. Furthermore, the results of transcriptome analysis showed that the metabolic pathways in which differentially expressed genes were mainly enriched included flavonoid biosynthesis, phenylpropanoid biosynthesis, plant hormone signal transduction, and plant-pathogen interaction. Our findings demonstrated that the metabolic pathways of signaling transduction and secondary metabolite biosynthesis, as well as several disease resistance-related genes and substances of P. koraiensis, are induced by B. xylophilus infection, and they collectively contribute to the defense response against nematode infestation. These findings will provide a theoretical basis for the further exploration of the defense mechanisms of host pines against pine wilt disease 
650 4 |a Journal Article 
650 4 |a Bursaphelenchus xylophilus 
650 4 |a Causal Agent 
650 4 |a Crop Type 
650 4 |a Disease management 
650 4 |a Nematodes 
650 4 |a Subject Areas 
650 4 |a Trees 
650 4 |a cultivar/resistance 
650 4 |a forest 
700 1 |a Lu, Miaomiao  |e verfasserin  |4 aut 
700 1 |a Chen, Hongna  |e verfasserin  |4 aut 
700 1 |a Wang, Hongling  |e verfasserin  |4 aut 
700 1 |a Jiang, Yingying  |e verfasserin  |4 aut 
700 1 |a Li, Feifei  |e verfasserin  |4 aut 
700 1 |a Zheng, Shuang  |e verfasserin  |4 aut 
700 1 |a Wang, Jiaqing  |e verfasserin  |4 aut 
700 1 |a Li, Debin  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Plant disease  |d 1997  |g (2025) vom: 13. Sept.  |w (DE-627)NLM098181742  |x 0191-2917  |7 nnas 
773 1 8 |g year:2025  |g day:13  |g month:09 
856 4 0 |u http://dx.doi.org/10.1094/PDIS-08-24-1704-RE  |3 Volltext 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_350 
951 |a AR 
952 |j 2025  |b 13  |c 09