褐飞虱
生物
飞虱科
飞虱
若虫
生殖力
半翅目
长寿
载体(分子生物学)
羧酸酯酶
有害生物分析
农学
园艺
植物
同翅目
酶
人口
生物化学
人口学
遗传学
社会学
基因
重组DNA
作者
Hongxing Xu,Xiaochan He,Xiaodong Zheng,Yajun Yang,Zhongxian Lü
标识
DOI:10.1111/1744-7917.12045
摘要
Abstract Rice black streak dwarf virus (RBSDV) is transmitted by the small brown planthopper (SBPH), Laodelphax striatellus (Fallen). Non‐vector rice brown planthopper (BPH), Nilaparvata lugens (Stål), shares the same host rice plants with SBPH in paddy fields. The changes in nutritional composition of rice plants infected by RBSDV and the ecological fitness of BPH feeding on the infected plants were studied under both artificial climate chamber and field conditions. Contents of 16 detected amino acids and soluble sugar in RBSDV infected rice plants were higher than those in the healthy ones. On the diseased plants BPH had significantly higher nymphal survival rates, nymphal duration of the males, weight of the female adults, as well as egg hatchability compared to BPH being fed on healthy plants. However, there was no obvious difference in female nymph duration, longevity and fecundity. Defense enzymes (superoxidase dismutase, SOD and catalase, CAT) and detoxifying enzymes (carboxylesterase, CAE and glutathione S‐transferase, GST) in BPH adults fed on diseased plants had markedly higher activities. The results indicate rice plants infected by RBSDV improved the ecological fitness of the brown planthopper, a serious pest but not a transmitter of the RBSDV virus.
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