نتایج جستجو برای: genetically modified bacillus thuringiensis rice (bt) (gm rice)

تعداد نتایج: 446496  

Journal: :iranian biomedical journal 0
منصور زارع mansour zare معصومه شمس قهفرخی masoomeh shams-ghahfarokhi شاهرخ رنجبر بهادری shahrokh ranjbar-bahadori عبدالامیر علامه abdolamir allameh مهدی رزاقی ابیانه mehdi razzaghi-abyaneh

background: aflatoxins are toxic fungal metabolites enable to contaminate a wide range of natural substrates. this contamination can be host-specific for different plant species. in this study, the ability of a toxigenic aspergillus parasiticus to produce various aflatoxins on major iranian cereals was evaluated with special focus on plant susceptibility to toxin production at cultivar level. m...

2013
Yanfang Yuan Wentao Xu Xiaoyun He Haiyan Liu Sishuo Cao Xiaozhe Qi Kunlun Huang Yunbo Luo

Bacillus thuringiensis insecticidal toxin (Bt) rice will be commercialized as a main food source. Traditional safety assessments on genetically modified products pay little attention on gastrointestinal (GI) health. More data about GI health of Bt rice must be provided to dispel public' doubts about the potential effects on human health. We constructed an improved safety assessment animal model...

Journal: :Annual review of entomology 2011
Mao Chen Anthony Shelton Gong-yin Ye

From the first insect-resistant genetically modified (IRGM) rice transformation in 1989 in China to October 2009 when the Chinese Ministry of Agriculture issued biosafety certificates for commercial production of two cry1Ab/Ac Bacillus thuringiensis (Bt) lines, China made a great leap forward from IRGM rice basic research to potential commercialization of the world's first IRGM rice. Research h...

2014
Qianying Guo Shuangjia Wang Yu Wang Liren Wei Han Zhu Lingyan Zhu Junli Shang Yong Li Junbo Wang

TT51, with a synthetic Cry1Ab/CryAc gene from Bacillus thuringiensis Berliner, was the first genetically modified (GM) plant officially certificated in China. This study was undertaken to investigate potential embryotoxicity of TT51 on rats. Whole embryo culture (WEC) is an effective method for safety evaluation when culture medium, containing substances derived from GM food, is available. Rat ...

2014
Guangsheng Li Yongmo Wang Biao Liu Guoan Zhang

Rice lines genetically modified with the crystal toxin genes from Bacillus thuringiensis (Bt) have experienced rapid development, with biosafety certificates for two Bt rice lines issued in 2009. There has still been no commercial release of these lines yet due to public concerns about human health and environmental risks. Some studies confirmed that Bt rice was as safe as conventional rice to ...

2016
Xiaoyan Tan Xiaobing Zhou Yao Tang Jianjun Lv Lin Zhang Li Sun Yanwei Yang Yufa Miao Hua Jiang Gaofeng Chen Zhiying Huang Xue Wang

The present study was performed to evaluate the food safety of TT51-1, a new type of genetically modified rice that expresses the Cry1Ab/Ac protein (Bt toxin) and is highly resistant to most lepidopteran pests. Sixteen male and 16 female cynomolgus monkeys were randomly divided into four groups: conventional rice (non-genetically modified rice, non-GM rice), positive control, 17.5% genetically ...

2012
Jun-Ce Tian Yang Chen Zhao-Liang Li Kai Li Mao Chen Yu-Fa Peng Cui Hu Anthony M. Shelton Gong-Yin Ye

BACKGROUND The commercial release of rice genetically engineered to express a Cry1Ab protein from Bacillus thuringiensis (Bt) for control of Lepidoptera in China is a subject of debate. One major point of the debate has focused on the ecological safety of Bt rice on nontarget organisms, especially predators and parasitoids that help control populations of insect pests. METHODOLOGY/PRINCIPAL F...

2007
Mao Chen Zhi-cheng Liu Gong-yin Ye Zhi-cheng Shen Cui Hu Yu-fa Peng Illimar Altosaar Anthony M. Shelton

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 ...

2018
Yan Yang Bing Zhang Xiang Zhou Jörg Romeis Yufa Peng Yunhe Li

Assessing the potential effects of insect-resistant genetically engineered (GE) plants on collembolans is important because these common soil arthropods may be exposed to insecticidal proteins produced in GE plants by ingestion of plant residues, crop pollen, or root exudates. Laboratory studies were conducted to evaluate the potential effects of two Bacillus thuringiensis (Bt)-rice lines expre...

2015
Xiuping Chen Jiamei Wang Haojun Zhu Yunhe Li Jiatong Ding Yufa Peng Patrick Prunet

In fields of genetically modified, insect-resistant rice expressing Bacillus thuringiensis (Bt) proteins, frogs are exposed to Bt Cry proteins by consuming both target and non-target insects, and through their highly permeable skin. In the present study, we assessed the potential risk posed by transgenic cry1Ca rice (T1C-19) on the development of a frog species by adding purified Cry1Ca protein...

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