Journal of Integrative Agriculture ›› 2014, Vol. 13 ›› Issue (7): 1520-1529.DOI: 10.1016/S2095-3119(14)60804-2

• 论文 • 上一篇    下一篇

Interactive Effects of Elevated CO2 and Temperature on Rice Planthopper, Nilaparvata lugens

 SHI Bao-kun, HUANG Jian-li, HU Chao-xing , HOU Mao-lin   

  1. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.China
  • 收稿日期:2013-09-06 出版日期:2014-07-15 发布日期:2014-07-16
  • 通讯作者: HOU Mao-lin, Tel/Fax: +86-10-62833985, E-mail: mlhou@ippcaas.cn
  • 基金资助:

    The research was funded by the National Basic Research Program of China (2010CB951503).

Interactive Effects of Elevated CO2 and Temperature on Rice Planthopper, Nilaparvata lugens

 SHI Bao-kun, HUANG Jian-li, HU Chao-xing , HOU Mao-lin   

  1. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R.China
  • Received:2013-09-06 Online:2014-07-15 Published:2014-07-16
  • Contact: HOU Mao-lin, Tel/Fax: +86-10-62833985, E-mail: mlhou@ippcaas.cn
  • Supported by:

    The research was funded by the National Basic Research Program of China (2010CB951503).

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摘要： It is predicted that the current atmospheric CO2 concentration will be doubled and global mean temperature will increase by 1.5-6°C by the end of this century. Although a number of studies have addressed the separate effects of CO2 and temperature on plant-insect interactions, few have concerned with their combined impacts. In the current study, a factorial experiment was carried out to examine the effect of a doubling CO2 concentration and a 3°C temperature increase on a complete generation of the brown planthopper (Nilaparvata lugens) on rice (Oryza sativa). Both elevated CO2 and temperature increased rice stem height and biomass of stem parts. Leaf chlorophyll content increased under elevated CO2, but only in ambient temperature treatment. Water content of stem parts was reduced under elevated temperature, but only when coupled with elevated CO2. Elevated CO2 alone increased biomass of root and elevated temperature alone enhanced leaf area and reduced ratio of root to stem parts. Brown planthopper (BPH) nymphal development was accelerated, and weight of and honeydew excretion by the F1 adults was reduced under elevated temperature only. Longevity of brachypterous females was affected by a significant interaction between CO2 and temperature. At elevated temperature, CO2 had no effect on female longevity, but at ambient temperature, the females lived shorter under elevated CO2. Female fecundity was higher at elevated than at ambient temperature and higher at elevated CO2 than at ambient CO2. These results indicate that the combined effects of elevated temperature and CO2 may enhance the brown planthopper population size.

关键词: climate change , elevated CO2 , global warming , Nilaparvata lugens , rice , development

Abstract: It is predicted that the current atmospheric CO2 concentration will be doubled and global mean temperature will increase by 1.5-6°C by the end of this century. Although a number of studies have addressed the separate effects of CO2 and temperature on plant-insect interactions, few have concerned with their combined impacts. In the current study, a factorial experiment was carried out to examine the effect of a doubling CO2 concentration and a 3°C temperature increase on a complete generation of the brown planthopper (Nilaparvata lugens) on rice (Oryza sativa). Both elevated CO2 and temperature increased rice stem height and biomass of stem parts. Leaf chlorophyll content increased under elevated CO2, but only in ambient temperature treatment. Water content of stem parts was reduced under elevated temperature, but only when coupled with elevated CO2. Elevated CO2 alone increased biomass of root and elevated temperature alone enhanced leaf area and reduced ratio of root to stem parts. Brown planthopper (BPH) nymphal development was accelerated, and weight of and honeydew excretion by the F1 adults was reduced under elevated temperature only. Longevity of brachypterous females was affected by a significant interaction between CO2 and temperature. At elevated temperature, CO2 had no effect on female longevity, but at ambient temperature, the females lived shorter under elevated CO2. Female fecundity was higher at elevated than at ambient temperature and higher at elevated CO2 than at ambient CO2. These results indicate that the combined effects of elevated temperature and CO2 may enhance the brown planthopper population size.

Key words: climate change , elevated CO2 , global warming , Nilaparvata lugens , rice , development