转录基因对薄荷的洞察力 冒险性根部发育 诱导的三体 挥发性有机化合物 在盐应激下
Zhongjuan Zhao1, Qingao Kan1, Kai Yang1
1Shandong Province Key Laboratory of Applied Microbiology, China-Australia Joint Laboratory for Soil Ecological Health and Remediation, Ecology Institute of Shandong Academy of Sciences, Qilu University of Technology, Jinan, China.
Physiologia plantarum
|March 12, 2026
概括
在盐的压力下,胡卜精根的生长促进了 Trichoderma harzianum ST02挥发性有机化合物 (VOC). 挥发性有机物通过调节植物激素信号传递和离子运输来增强盐分耐受性,有助于偶然的根部发育.
科学领域:
- 植物科学 植物科学
- 微生物学 微生物学
- 生物化学 生物化学
背景情况:
- 盐应激对植物根部发育产生负面影响,影响作物产量.
- 薄荷 (Mentha × piperita) 是一种有价值的药用植物,具有固有的盐分耐受性.
- 有益的微生物可以增强植物的抗压能力.
研究的目的:
- 调查Trichoderma harzianum ST02挥发性有机化合物 (VOCs) 在盐应激下改善胡卜偶发性根部发育中的作用.
- 确定由T. harzianum ST02 VOCs调节的关键分子通路和基因.
主要方法:
- 胡薄荷苗被暴露在各种度的NaCl中,有或没有T. harzianum ST02的VOCs.
- 形态分析量化了根部的发育.
- 气色谱质谱法 (GC-MS) 确定了VOC成分.
- RNA测序 (RNA-seq) 分析了基因表达的变化.
主要成果:
- T. harzianum ST02 挥发性有机化合物在盐应力下显著增加偶然根数和长度.
- 3(2H) - furanone,二-2-甲基被确定为一个关键的VOC成分.
- 挥发性有机物调节了参与激素信号传递 (auxin,gibberellin,ABA,乙烯),离子运输,ROS清理和细胞壁修饰的基因.
- 差异基因表达分析显示,在压力和VOC治疗下,有5589个差异表达基因 (DEGs).
结论:
- T. harzianum ST02 挥发性有机物通过促进偶然的根部发育来增强薄荷盐的耐受性.
- 挥发性有机化合物通过协调调节植物激素通路,离子稳态和细胞壁重塑来促进根生长.
- 这项研究为使用微生物VOC来改善植物在盐水环境中的弹性提供了分子基础.
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