相关实验视频

Updated: Jul 9, 2025

The Plant Infection Test: Spray and Wound-Mediated Inoculation with the Plant Pathogen Magnaporthe Grisea

The Plant Infection Test: Spray and Wound-Mediated Inoculation with the Plant Pathogen Magnaporthe Grisea

Published on: August 4, 2018

在气候变化下,大米中的金字塔式BPH基因保持了对棕色植物的抵抗力

Chih-Lu Wang¹, Pei-Qi Luo¹, Fang-Yu Hu¹

¹Department of Agronomy, National Taiwan University, Taipei, Taiwan.

Pest management science

|November 28, 2023

概括

在模拟的气候变化下,金字塔式大米线保持了棕色植物 (BPH) 的抵抗力. BPH18+32系表现出优越的耐药性和弹性,突出显示了在米育种中基因组合对害虫管理的重要性.

科学领域:

农业科学农业科学
昆虫学昆虫学是一门学科.
植物育种植物育种

背景情况:

棕色 (Nilaparvata lugens; BPH) 是一个主要的亚洲大米害虫,导致大量的收成损失.
将多种BPH耐药基因嵌入到大米中是可持续害虫管理的关键策略.
气候变化对金字塔抗性基因有效性的影响尚不清楚.

研究的目的:

在模拟的气候变化条件下,评估三条金字塔式大米线 (BPH2+32,BPH9+32,BPH18+32) 的昆虫抗性.
评估温度升高和二氧化碳度对BPH与大米相互作用的影响.
为了确定不同环境场景下的金字塔线之间的弹性和阻力变化.

主要方法:

三条金字塔式大米线被 subjected to三个不同的环境条件模拟气候变化: 30/25°C (白天/夜间) 与500 ppm CO2,32/27°C与600 ppm CO2,和35/30°C与1000 ppm CO2.
保持了米-N. lugens的相互作用,以确保足够的数据用于抗性和弹性评估.
基于抗生素和抗异性效应评估了昆虫的耐药性,同时评估了害虫侵袭下的弹性.

主要成果:

在所有测试的环境条件下,所有三种金字塔式大米品种都保持了它们的抗昆虫能力.
BPH18+32大米系表现出对N. lugens增强的抗生素和抗异性作用,显示出优越的耐药性.
BPH18+32在N. lugens感染下表现出更大的弹性,与其他两条线相比,其性能各不相同.

结论:

在预测的气候变化场景下,金字塔式大米线保持了昆虫耐药性,证实了这种育种策略的稳定性.
在金字塔线之间排斥反应和弹性能力的变化强调了特定基因组合的重要性.
未来的水育种计划应该仔细考虑金字塔基因组合,以优化在不断变化的环境条件下对害虫的抗性.

关键词:

尼拉帕尔瓦塔的气体气候变化气候变化气候变化接近同位素线的近同位素线这是一个金字塔式的金字塔.恢复力恢复力

更多相关视频

Author Spotlight: Streamlining Rice Breeding with CRISPR/Cas for Obtaining Optimal Phenotypic and Agronomic Traits

Author Spotlight: Streamlining Rice Breeding with CRISPR/Cas for Obtaining Optimal Phenotypic and Agronomic Traits

Published on: January 3, 2025

Two-layered Membrane Sandwich Method for Laodelphax striatellus Saliva Collection

Two-layered Membrane Sandwich Method for Laodelphax striatellus Saliva Collection

Published on: August 27, 2021

相关概念视频

Plant Breeding and Biotechnology

Plant Breeding and Biotechnology

Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.

Responses to Drought and Flooding

Responses to Drought and Flooding

Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.

Transgenic Plants

Transgenic Plants

Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...

Adaptations that Reduce Water Loss

Adaptations that Reduce Water Loss

Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.