本文關(guān)鍵詞： 轉(zhuǎn)基因水稻 浮游動物 物種多樣性 安全評價　出處：《中國生物防治學(xué)報》2017年04期 　論文類型：期刊論文

【摘要】：轉(zhuǎn)Bt基因水稻的非靶標(biāo)效應(yīng)一直以來都是人們關(guān)注的重點,為了解轉(zhuǎn)Bt基因水稻對稻田浮游動物群落的安全性,本文以轉(zhuǎn)cry1C基因水稻(T1C-19)、轉(zhuǎn)cry2A基因水稻(T2A-1)及其非轉(zhuǎn)基因親本水稻明恢63(MH63)為材料,以浮游動物的種類和群落多樣性為指標(biāo),研究并分析了轉(zhuǎn)Bt基因水稻對稻田浮游動物群落物種多樣性的影響。結(jié)果顯示,水稻不同生長時期里稻田中浮游動物種類變化不明顯,數(shù)量變化明顯,Shannon-Wiener物種多樣性指數(shù)和均勻性指數(shù)在拔節(jié)期達到最大值。另外由于孕穗期不得不施用農(nóng)藥防治蝗蟲,導(dǎo)致孕穗期浮游動物的數(shù)量及物種多樣性顯著降低,并且在使用農(nóng)藥后,多樣性指數(shù)和均勻性指數(shù)隨著水稻的生長逐漸下降。但轉(zhuǎn)Bt基因水稻對浮游動物種類和數(shù)量及群落物種多樣性與對照非轉(zhuǎn)基因水稻相比均無顯著性差異。與施用農(nóng)藥對水體帶來的負面影響相比,轉(zhuǎn)Bt基因水稻對水體環(huán)境無負面影響。
[Abstract]:Non-target effect of BT transgenic rice has been the focus of attention. In order to understand the safety of BT transgenic rice to zooplankton communities in paddy fields. In this paper, cry1C transgenic rice T1C-19, cry2A transgenic rice T2A-1) and its non-transgenic parent Minghui 63 (MH63) were used as materials. The effects of BT transgenic rice on species diversity of zooplankton communities in paddy fields were studied and analyzed based on species and community diversity of zooplankton. The variety of zooplankton species in rice field was not obvious, but the number of zooplankton changed obviously in different growing stages of rice. The species diversity index and uniformity index of Shannon-Wiener reached the maximum at jointing stage. In addition, pesticides had to be applied to control locusts at booting stage. As a result, the number and species diversity of zooplankton in booting stage were significantly reduced, and after the use of pesticides. The diversity index and evenness index decreased gradually with the growth of rice, but the species diversity of zooplankton and community of BT transgenic rice were not significantly different from those of control non-transgenic rice. The adverse effects of pesticides on water were compared. Transgenic BT rice had no negative effect on water environment.
【作者單位】： 中國農(nóng)業(yè)科學(xué)院植物保護研究所/植物病蟲害生物學(xué)國家重點實驗室;揚州大學(xué)動物科學(xué)與技術(shù)學(xué)院;
【基金】：國家轉(zhuǎn)基因生物新品種培育科技重大專項(2016ZX08011-001)
【分類號】：S511
【正文快照】： 轉(zhuǎn)基因抗蟲作物能夠有效的控制害蟲為害,從而降低化學(xué)農(nóng)藥的使用、提高農(nóng)民的收入、減少環(huán)境污染,同時解決農(nóng)藥殘留等問題,因此會帶來巨大的環(huán)境和經(jīng)濟效益[1],但其對生態(tài)環(huán)境的潛在風(fēng)險仍需深入的研究。轉(zhuǎn)基因抗蟲作物的環(huán)境風(fēng)險問題主要包括入侵化和雜草化、基因漂移、非靶

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