Article
Agriculture, Multidisciplinary
Jiangen Wu, Yuanyuan Zheng, Chenxi Xu, Qiqi Jiao, Chenglong Ye, Tongtong Chen, Xiaoping Yu, Kun Pang, Peiying Hao
Summary: This study reveals the importance of transferrin genes NlTsf1, NlTsf2, and NlTsf3 in the interaction between rice and brown planthopper (BPH). RNAi treatment of NlTsf3 significantly reduces the egg production of BPH, while treatments of NlTsf1 and NlTsf2 also affect the survival rate of BPH.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Zhao Wang, Gui-Yun Long, Dao-Chao Jin, Hong Yang, Cao Zhou, Xi-Bin Yang
Summary: The study revealed that SfTre1 and SfTre2 play crucial roles in the growth and development of S. furcifera, with RNA interference affecting their expression and causing malformed phenotypes and high mortality rates.
Article
Biochemistry & Molecular Biology
Min Zhou, Qida Shen, Shasha Wang, Guoyong Li, Yan Wu, Caidi Xu, Bin Tang, Can Li
Summary: This study investigated the regulation of trehalose-6-phosphate synthase (TPS) in chitin metabolism in the brown planthopper. The results showed that inhibition of TPS expression affected the metabolism of trehalose and chitin in the insect. These findings provide a theoretical basis for pest control.
INSECT MOLECULAR BIOLOGY
(2022)
Article
Entomology
Hai-Zhong Yu, Yu-Ling Huang, Zhan-Jun Lu, Qin Zhang, Hua-Nan Su, Yi-Ming Du, Long Yi, Ba-Lian Zhong, Ci-Xiang Chen
Summary: The study identified three trehalase genes in the Asian citrus psyllid, revealing their important role in regulating chitin metabolism and providing a new target for control of the psyllid.
Article
Physiology
Hui-Ru Si, Si-Si Sun, Yong-Kang Liu, Ling-Yu Qiu, Bin Tang, Fang Liu, Qiang Fu, Cai-Di Xu, Pin-Jun Wan
Summary: In this study, the knockdown of NlGFAT or NlPFK in brown planthoppers resulted in metabolism disorders, with significant changes in trehalose, glucose, and glycogen metabolism pathways. Knockdown of NlGFAT led to increased trehalose and glycogen content, while knockdown of NlPFK caused extreme increases in glucose and glycogen content. The knockdown of NlGFAT or NlPFK also affected the glycolytic pathway and pyruvate kinase activity, as well as ATP content.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Xiao Zhang, Daoming Liu, Dong Gao, Weining Zhao, Huaying Du, Zeyu Qiu, Jie Huang, Peizheng Wen, Yongsheng Wang, Qi Li, Wenhui Wang, Haosen Xu, Jun He, Yuqiang Liu, Jianmin Wan
Summary: Plants have a defense system against insect pests, and cytokinin plays a crucial role in enhancing rice resistance against the brown planthopper. The presence of cytokinin promotes the biosynthesis and signaling in response to brown planthopper feeding. This resistance is dependent on the plant hormone jasmonic acid.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Agronomy
Jun Hu, He Cui, Mingsheng Hong, Yuxian Xia, Wenqing Zhang
Summary: This study constructed transgenic strains of Metarhizium anisopliae and demonstrated that the expression of dsRNA targeting the chitin synthase gene greatly enhanced the fungal virulence against the brown planthopper Nilaparvata lugens.
Article
Entomology
Jun Yang, Xiang-Dong Kong, Keyan Zhu-Salzman, Qing-Ming Qin, Qing-Nian Cai
Summary: This study investigates how brown planthopper uses glutathione S-transferases to detoxify gramine in rice, showing that gramine induces the activity and gene transcription of glutathione S-transferase in brown planthopper. Knockdown of key genes NlGST1-1, NlGSTD2, and NlGSTE1 inhibits the enzyme's activity, providing a potential pest control strategy.
Article
Biochemistry & Molecular Biology
Ni Wang, Min Chen, Ying Zhou, Wen-Wu Zhou, Zeng-Rong Zhu
Summary: This study systematically characterized five core genes involved in miRNA biogenesis and found that they play essential roles in the development and reproduction of the Nilaparvata lugens agricultural pest.
INSECT MOLECULAR BIOLOGY
(2023)
Article
Agronomy
Jun Yang, Shu-Ying Yan, Guo-Cheng Li, Hao Guo, Rui Tang, Ruiyan Ma, Qing-Nian Cai
Summary: This study found that the brown planthopper can dynamically regulate gene expressions when feeding on resistant rice, and identified a gene, NlDHRS11, involved in detoxification mechanism. The research provides new insights into the interaction between insect pests and plants, and may contribute to the development of novel control strategies for the brown planthopper.
PEST MANAGEMENT SCIENCE
(2023)
Review
Plant Sciences
A. Mishra, S. R. Barik, E. Pandit, S. S. Yadav, S. R. Das, S. K. Pradhan
Summary: Brown planthopper (BPH) is a phloem-sucking insect that causes severe damage to rice crops in Asian countries. This review provides an update on the latest research on resistance sources, identification of resistance genes, gene maps, cloning, and molecular mechanisms of resistance against BPH.
CRITICAL REVIEWS IN PLANT SCIENCES
(2022)
Article
Agronomy
Chih-Lu Wang, Pei-Qi Luo, Fang-Yu Hu, Yi Li, Chang-Lin Sung, Yun-Hung Kuang, Shau-Ching Lin, Zhi-Wei Yang, Charng-Pei Li, Shou-Horng Huang, Sherry Lou Hechanova, Kshirod K. Jena, Chia-Hung Hsieh, Wen-Po Chuang
Summary: The study found that three pyramiding rice lines maintained their insect resistance under different climate change scenarios, but exhibited variations in repellent responses and resilience capacities. Therefore, the combination of pyramiding genes should be considered in future breeding programs.
PEST MANAGEMENT SCIENCE
(2023)
Article
Plant Sciences
Su Chen, Bo Sun, Zhenying Shi, Xuexia Miao, Haichao Li
Summary: The study identified genes and metabolites associated with dual resistance against brown planthopper and blast disease in rice. The analysis revealed a modular pattern with high correlation coefficients after the infestation of both pests. The knockdown of the OsF3H gene resulted in opposite resistance phenotypes, while the knockout of the OsF3 ' H gene enhanced resistance. Additionally, the metabolite eriodictyol was found to be more accumulated in resistant rice varieties. This study highlights the potential synergistic effects of genes and metabolites in rice against multiple biotic stresses.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Entomology
Zuo-min Shao, Jian-hao Ding, De-lei Jiang, Zhi-xiang Liu, Yi-jiangcheng Li, Jiao Wang, Jun Wang, Sheng Sheng, Fu-an Wu
Summary: In this study, two trehalase genes (GpTre1 and GpTre2) in Glyphodes pyloalis were identified and found to play a critical role in chitin metabolism and development. Knockdown of these genes or treatment with the trehalase inhibitor, Validamycin A, significantly impacted physiological processes and mortality rates in G. pyloalis larvae. These findings offer valuable insights for future insect pest control strategies.
Article
Plant Sciences
Wintai Kamolsukyeunyong, Wissarut Sukhaket, Kitsada Pitija, Pornwalai Thorngkham, Sugunya Mahatheeranont, Theerayut Toojinda, Apichart Vanavichit
Summary: The rice sesquiterpene synthase II gene plays a role in the antixenosis defense mechanism against brown planthopper infestation, with differences in functionality observed between resistant and susceptible rice varieties. Single-nucleotide polymorphisms in the gene's promoter region and exon 5, as well as a seven amino acid deletion in the protein sequence, may negatively regulate gene function. Analysis suggests a correlation between SNPs in specific genes and the expression of OsSTPS2, while a 21 bp deletion in exon 5 affects the antixenosis mechanism during BPH infestation.