相关实验视频

Updated: Jun 13, 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

鉴定和淘汰一种草食动物易感基因可以增强植物的抵抗力,增加大米产量

Peng Kuai¹, Na Lin¹, Miaofen Ye¹

¹State Key Laboratory of Rice Breeding and Biology and Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Insect Sciences, Zhejiang University, Hangzhou, China.

|September 9, 2024

概括

科学家们发现了一种米基因,OsLRR2,它吸引棕色的植物 (Nilaparvata lugens). 淘汰这种基因减少了害虫的入侵,增加了自然敌人的吸引力,并提高了大米产量高达25%.

科学领域:

植物科学植物科学
昆虫学昆虫学是一门学科.
遗传学是一个遗传学.

背景情况:

棕色 (Nilaparvata lugens) 和白背 (Sogatella furcifera) 是大米的主要害虫.
植物敏感性基因在作物保护策略中尚未得到充分探索.

研究的目的:

为了确定涉及植物感染的米基因.
调查OsLRR2在促进棕色虫 (BPH) 感染中的作用.
评估OsLRR2作为害虫控制和产量提升的目标的潜力.

主要方法:

识别易氨酸丰富的重复蛋白 OsLRR2 在易感的米品种中.
实地试验涉及在米植物中淘汰OsLRR2基因.
评估BPH感染水平和自然敌人种群.
在经过处理和未经处理的地块上测量大米产量.

主要成果:

鉴定出OsLRR2基因是N. lugens.的易感因子.
OsLRR2淘汰显著减少了BPH感染.
淘汰OsLRR2通过吸引自然敌人来增强自然生物控制.
在用杀虫剂处理的土地上,大米产量增加了18%,在未经处理的土地上,大米产量增加了25%.

结论:

OsLRR2在促进虫感染大米中发挥着至关重要的作用.
准OsLRR2为抑制害虫种群提供了一个新的策略.
操作OsLRR2为增加大米产量和改善作物保护提供了一个有希望的途径.

更多相关视频

Embryo Microinjection and Knockout Mutant Identification of CRISPR/Cas9 Genome-Edited Helicoverpa Armigera Hübner

Embryo Microinjection and Knockout Mutant Identification of CRISPR/Cas9 Genome-Edited Helicoverpa Armigera Hübner

Published on: July 1, 2021

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

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.

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...

Experimental RNAi

Experimental RNAi

RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...