Impacts of transgenic cry1Ab rice on non-target planthoppers and their main predator Cyrtorhinus lividipennis (Hemiptera: Miridae) -: A case study of the compatibility of Bt rice with biological control
Impacts of transgenic cry1Ab rice on non-target planthoppers and their main predator Cyrtorhinus lividipennis (Hemiptera: Miridae) -: A case study of the compatibility of Bt rice with biological control
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DOI：
10.1016/j.biocontrol.2007.05.005
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发表时间：
2007-08-01
影响因子：
4.2
通讯作者：
Shelton, Anthony M.
中科院分区：
文献类型：
--
作者：
Chen, Mao;Liu, Zhi-Cheng;Shelton, Anthony M.
含有苏云金杆菌杀虫蛋白的转基因水稻在实验室和田间条件下有效地控制了鳞翅目害虫。然而，Bt水稻尚未广泛商业化。关于Bt水稻的部署的一个主要问题是其对非目标节肢动物的潜在影响，包括水稻生态系统中的食草害虫和生物控制剂（捕食者和寄生虫）。在浙江省3个地点进行了为期2年的田间试验，以评价转Bt基因粳稻KMD 1（Bt水稻）的影响。采用真空吸捕和Malaise诱捕两种采样方法，对灰飞虱、白背飞虱、褐飞虱和灰飞虱以及黑翅绿盲蝽Cyrtorhinus lividipennis（罗伊特）的影响进行了研究。稻飞虱和C.在每年的3个地点中，无论采用何种取样方法，稻型（Bt/非Bt）对青翅目的影响都不显著。在转Bt基因水稻和非转Bt基因水稻中，S。通过两种取样方法中的任一种确定，白背飞虱是稻飞虱的优势种，并且在每个地点占稻飞虱的50%以上。Bt水稻和Bt水稻×采样期互作对稻飞虱种群动态的影响不一致。furcifera和捕食者，C lividipennis，观察整个采样期间。总体而言，这项为期2年的田间研究表明，与非Bt水稻相比，Bt水稻没有导致更高的稻飞虱种群数量，也没有对捕食者C.青翅类这些结果表明，使用Bt水稻可以提供控制的关键鳞翅目害虫，同时促进关键生物控制剂的稻飞虱，C lividipennis。(c)2007年由Elsevier Inc.出版
Transgenic rice containing insecticidal protein(s) from Bt (Bacillus thuringiensis) effectively control lepidopteran pests under laboratory and field conditions. However, Bt rice has not been widely commercialized. A major concern regarding the deployment of Bt rice is its potential impact on non-target arthropods, including herbivorous insect pests and biological control agents (predators and parasitoids) in the rice ecosystem. A 2-year field study was conducted at 3 sites in Zhejiang Province, China to assess the impacts of a homozygous transgenic japonica rice line KMD1 (Bt rice) containing a synthetic cry1Ab gene from Bacillus thuringiensis Berliner. The impacts on three planthoppers (Homoptera: Delphacidae), Sogatella furcifera (Horvath), Nilaparvata lugens (Stal) and Laodelphax striatellus (Fallen), and the natural enemy, Cyrtorhinus lividipennis (Reuter) (Hemiptera: Miridae), were evaluated using two sampling methods: vacuum-suction and Malaise trap. Population densities of planthoppers and C. lividipennis were not significantly affected by rice type (Bt/non-Bt) over the season at any of the 3 sites in each year, regardless of sampling methods. Both in Bt rice and non-Bt rice plots, S. furcifera was the predominant species of planthoppers as determined by either of the two sampling methods, and comprised > 50% of the planthoppers at each site. No consistent effects of Bt rice and Bt rice x sampling date interaction on population dynamics of the predominant planthopper species, S. furcifera, and the predator, C lividipennis, were observed throughout the sampling period. Overall, this 2-year field study indicates that, in comparison with non-Bt rice, Bt rice did not lead to higher planthopper populations and did not negatively affect the predator C. lividipennis. These results suggest that use of Bt rice may provide control of the key lepidopteran pests while promoting the key biological control agent of planthopppers, C lividipennis. (c) 2007 Published by Elsevier Inc.