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首页> 美国卫生研究院文献>other >Cry1Ac Transgenic Sugarcane Does Not Affect the Diversity of Microbial Communities and Has No Significant Effect on Enzyme Activities in Rhizosphere Soil within One Crop Season
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Cry1Ac Transgenic Sugarcane Does Not Affect the Diversity of Microbial Communities and Has No Significant Effect on Enzyme Activities in Rhizosphere Soil within One Crop Season

机译：Cry1Ac转基因甘蔗不影响微生物群落的多样性并且在一个作物季节内对根际土壤酶活性没有显着影响

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Cry1Ac transgenic sugarcane provides a promising way to control stem-borer pests. Biosafety assessment of soil ecosystem for cry1Ac transgenic sugarcane is urgently needed because of the important role of soil microorganisms in nutrient transformations and element cycling, however little is known. This study aimed to explore the potential impact of cry1Ac transgenic sugarcane on rhizosphere soil enzyme activities and microbial community diversity, and also to investigate whether the gene flow occurs through horizontal gene transfer. We found no horizontal gene flow from cry1Ac sugarcane to soil. No significant difference in the population of culturable microorganisms between the non-GM and cry1Ac transgenic sugarcane was observed, and there were no significant interactions between the sugarcane lines and the growth stages. A relatively consistent trend at community-level, represented by the functional diversity index, was found between the cry1Ac sugarcane and the non-transgenic lines. Most soil samples showed no significant difference in the activities of four soil enzymes: urease, protease, sucrose, and acid phosphate monoester between the non-transgenic and cry1Ac sugarcane lines. We conclude, based on one crop season, that the cry1Ac sugarcane lines may not affect the microbial community structure and functional diversity of the rhizosphere soil and have few negative effects on soil enzymes.
机译：Cry1Ac转基因甘蔗为控制钻-虫害提供了一种有前途的方法。由于土壤微生物在养分转化和元素循环中的重要作用，迫切需要针对cry1Ac转基因甘蔗的土壤生态系统进行生物安全性评估，但鲜为人知。本研究旨在探讨cry1Ac转基因甘蔗对根际土壤酶活性和微生物群落多样性的潜在影响，并研究基因水平流通是否发生基因流动。我们没有发现从cry1Ac甘蔗到土壤的水平基因流动。在非转基因和cry1Ac转基因甘蔗之间，可培养微生物的种群没有显着差异，并且在甘蔗品系和生长阶段之间没有显着的相互作用。在cry1Ac甘蔗和非转基因品系之间发现了一个以功能多样性指数为代表的社区水平上相对一致的趋势。大多数土壤样品在非转基因和cry1Ac甘蔗品系之间的四种土壤酶（脲酶，蛋白酶，蔗糖和酸性磷酸酯单酯）的活性之间没有显着差异。我们基于一个作物季节得出的结论是，cry1Ac甘蔗品系可能不会影响根际土壤的微生物群落结构和功能多样性，并且对土壤酶几乎没有负面影响。

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