| 张铭宇, 张 琛, 杨晓伟*, 韩兰芝*.转Bt基因玉米和大豆对非靶标害虫双斑萤叶甲取食及适合度的影响[J].植物保护,2026,52(4):185-192. |
| 转Bt基因玉米和大豆对非靶标害虫双斑萤叶甲取食及适合度的影响 |
| Effects of insect-resistant transgenic maize and soybean on the feeding and fitness of the non-target pest Monolepta signata |
| 投稿时间：2025-07-19 修订日期：2025-12-18 |
| DOI：10.16688/j.zwbh.2025360 |
| 中文关键词: 抗虫转基因玉米和大豆 非靶标植食性害虫 双斑萤叶甲 害虫生态位 |
| 英文关键词:insect-resistant transgenic maize and soybean non-target herbivorous pests Monolepta signata pest niche |
| 基金项目:环境安全评价技术创新与应用支撑体系建设(2023ZD04062) |
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| 中文摘要: |
| 目前, 我国已进入转基因玉米和大豆商业化应用的扩面提速阶段, 转基因作物大面积应用后, 其对非靶标害虫种群的影响是一个值得关注的问题。双斑萤叶甲Monolepta signata是我国北方地区抗鳞翅目害虫转基因玉米和大豆田的一种重要非靶标植食性害虫。为明确转基因玉米和大豆对双斑萤叶甲种群的影响, 本研究通过离体叶片及活体植株测定试验, 开展了转基因抗虫玉米(‘BFL4-2’)和大豆(‘CAL16’)对其成虫生长发育、存活、生殖及取食能力的影响。结果显示, 与非转基因对照相比, 取食转基因抗虫玉米和大豆双斑萤叶甲成虫的寿命、存活率及产卵量均无显著差异;转基因大豆仅在离体条件下显著降低叶甲取食面积, 活体条件下无显著差异, 整体对双斑萤叶甲成虫适合度无显著影响。可见有效防治鳞翅目害虫的抗虫转基因玉米对双斑萤叶甲无显著控制作用。为保障转基因作物的可持续性应用, 需要对转基因作物田的双斑萤叶甲种群进行长期监测。 |
| 英文摘要: |
| Currently, China has entered a stage of accelerated expansion in the commercial application of transgenic maize and soybean. Within the large-scale adoption of insect-resistant transgenic crops, their impact on populations of non-target herbivorous pests have become an important concern. Monolepta signata is an important non-target herbivorous pest in fields of insect-resistant transgenic maize and soybean targeting lepidopteran pests in northern China. To clarify the effects of transgenic maize and soybean on this pest, detached leaf and whole-plant assays were conducted to evaluate the effects of insect-resistant transgenic maize (‘BFL4-2’) and soybean (‘CAL16’) on the growth, development, survival, reproduction and feeding of adult M.signata. The results showed that, compared with non-transgenic controls, feeding on transgenic maize and soybean had no significant effects on adult lifespan, survival rate, or fecundity. For transgenic soybean (‘CAL16’), the feeding area of M.signata adults was significantly reduced under detached leaf conditions, while no significant difference was observed under whole-plant conditions. Overall, transgenic maize and soybean had no significant effects on the fitness of M.signata adults. These results indicate that insect-resistant transgenic maize effective against lepidopteran pests does not exert significant control over M.signata. To ensure the sustainable application of transgenic crops, long-term monitoring of M.signata populations in transgenic crop fields is necessary. |
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