摘要:
2026 年,俄罗斯天狼星科技大学生命科学遗传中心(Center for Genetics and Life Science, Sirius University of Science and Technology, Sochi, Russia)联合圣彼得堡国立大学生物学系、全俄农业微生物研究所(ARRIAM)、N.I.瓦维洛夫全俄植物遗传资源研究所(VIR)等单位在《Transgenic Research》期刊发表 Brief Report《CRISPR/Cas9-mediated knockout of PsLykX gene of pea (Pisum sativum L.) leads to loss of symbiotic nodules》(DOI: 10.1007/s11248-026-00490-z),文献中明确指出利用 LUYOR-3415RG 荧光蛋白激发光源可高效筛选 GFP 标记的转基因豌豆毛状根,为解析豌豆—根瘤菌共生识别机制与根瘤发育提供关键技术支撑。
俄罗斯天狼星科技大学团队利用 LUYOR-3415RG 荧光蛋白激发光源筛选 GFP 标记的转基因豌豆毛状根
2026 年,俄罗斯天狼星科技大学主导的研究团队在《Transgenic Research》发表最新成果,利用农杆菌介导的豌豆毛状根转化体系结合 CRISPR/Cas9 基因编辑,敲除豌豆 Sym2 位点候选基因 PsLykX (LysM receptor-like kinase),证明该 LysM 受体激酶是豌豆品种 Caméor 与根瘤菌 Rhizobium ruizarguesonis RCAM1026 建立共生结瘤所必需的关键基因。该研究中,LUYOR-3415RG 荧光蛋白激发光源作为关键工具,承担了 GFP 标记转基因豌豆毛状根的筛选任务,其稳定的荧光识别能力和高效的筛选效率为实验成功奠定了基础。
俄罗斯天狼星科技大学生命科学遗传中心位于俄罗斯索契,是俄罗斯面向现代生物技术、遗传育种与生物医药的前沿研究机构,联合圣彼得堡国立大学生物学系、全俄农业微生物研究所(ARRIAM)、N.I.瓦维洛夫全俄植物遗传资源研究所(VIR)等单位,围绕豆科—根瘤菌共生固氮、豌豆功能基因组、作物基因编辑与分子育种等方向开展系统研究。重点方向包括豌豆共生识别机制、LysM 受体激酶功能解析、CRISPR/Cas9 高效编辑体系构建等,为豆科作物共生固氮遗传改良提供重要理论支撑和技术储备。
在该实验中,研究团队采用农杆菌(Agrobacterium rhizogenes ARqua1)介导的豌豆毛状根转化技术,将携带 CRISPR/Cas9 敲除载体 pKSE401-GFP(针对 PsLykX 第一外显子设计 T1、T2 两条 gRNA)与 rolD 启动子驱动 GFP 报告基因的二元载体转入豌豆品种 Caméor 下胚轴;外植体在 Fahraeus 培养基上培养 7 天至穿刺位点出现愈伤后,转入无菌砂钵(每钵 3 株)于 21 ℃、16 h 光照/8 h 黑暗、光强约 4 万 lux 条件下生长三周,并接种根瘤菌 Rhizobium ruizarguesonis RCAM1026;接种三周后洗净根系,通过 LUYOR-3415RG 荧光蛋白激发光源在蓝光激发下配合黄色观察滤光片可视化 GFP 绿色荧光,快速筛选长度大于 4.5 cm 的阳性转基因毛状根,随后进行 PCR 扩增、Sanger 测序验证编辑事件、根瘤计数与 Mann–Whitney 非参数统计分析。


LUYOR-3415RG 荧光蛋白激发光源是一款专为转基因生物筛选设计的快速检测工具,采用充电电池供电,双波长激发设计适配绿色 / 红色荧光蛋白,续航能力强,既适用于实验室常规筛选,也满足野外原位观察需求;配合专用支架可实现长时间稳定观察,避免人工手持疲劳。其单个波长配备 6×3W LED 发光模块,照射面积广,能快速完成大批量样品筛选,显著提升实验效率;可灵活选配不同波长模块,兼容 GFP、eGFP、DsRed、mCherry、TdTomato 等多种荧光蛋白,满足多元化实验需求。该产品操作简便、荧光信号识别精准,已成为全球高校、科研院所转基因实验的核心工具,累计有近千篇高水平科研文献发表。
原文段落
Pea (Pisum sativum L.) symbiosis with nodule bacteria supplying plants with additional nitrogen is a very specific plant-microbial interaction. Mutual recognition of the partners occurs through perception of bacterial signal molecules (Nod factors) by plant receptors, enabling bacterial entry via root hairs and formation of nitrogen-fixing nodules. The pea gene Sym2, described but not yet cloned, exists in different allelic forms defining the symbiotic specificity, and is therefore thought to encode a Nod factor receptor. The PsLykX gene is a strong candidate for the Sym2, since its alleles coincide with high or low symbiotic specificity; however, to date, no genetic evidence has been obtained for a role of PsLykX in symbiosis. Here, we knocked-out the PsLykX in European pea Caméor using Agrobacterium-mediated hairy root transformation and CRISPR-Cas9 editing. The roots with editing events confirmed by sequencing lost the ability to form nodules, providing direct functional evidence that PsLykX is essential, at least, for the symbiosis between pea Caméor and Rhizobium ruizarguesonis RCAM1026.
After three weeks, roots were washed free of sand and screened for transformation by GFP fluorescence under blue light with yellow photo filter (LUYOR-3415RG, LUYOR Instrument Co., China). Individual transgenic roots (> 4.5 cm) were excised for further analysis. We evaluated the number of symbiotic nodules per unit root length. Non-transgenic roots emerged from the same plant served as the control. The statistical analysis was done in R (Mann–Whitney-Wilcoxon test).
文献来源:10.1007/s11248-026-00490-z