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相关概念视频

Cell Signaling in Plants01:25

Cell Signaling in Plants

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Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
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Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
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Morphogenesis02:19

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Plants present a rich source of nutrients for many organisms, making it a target for herbivores and infectious agents. Plants, though lacking a proper immune system, have developed an array of constitutive and inducible defenses to fend off these attacks.
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相关实验视频

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Bacterial Leaf Infiltration Assay for Fine Characterization of Plant Defense Responses using the Arabidopsis thaliana-Pseudomonas syringae Pathosystem
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不同的植物细胞对植物细胞的反应.

Yumin Kan1, Yanjie Zhang1, Wenhui Lin1

  • 1State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University , Shanghai, China.

mBio
|June 8, 2023
PubMed
概括

阿西多瓦克斯 (Acidovorax citrulli) 使用两种分泌系统,T3SS用于植物感染,T6SS用于细菌竞争. T6SS可以被改造成一种有毒的突变物来对抗植物病原体,为化学杀虫剂提供一种可持续的替代品.

关键词:
亚多拉克斯 (Acidovorax citrulli) 是一个有毒的植物.在RNA-Seqq.在T6SSSS中使用.生物控制生物控制跨物种的竞争 跨物种的竞争

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科学领域:

  • 植物病理学 植物病理学
  • 微生物学 微生物学
  • 细菌分泌系统是一种细菌分泌系统.

背景情况:

  • 阿西多瓦克斯 (Acidovorax citrulli) 通过其III型分泌系统 (T3SS) 在黄瓜中引起细菌果斑.
  • 这种细菌还具有具有抗菌性质的VI型分泌系统 (T6SS).
  • 植物对这些系统的反应和潜在的交叉声仍然不清楚.

研究的目的:

  • 为了研究植物细胞对A. citrulli的T3SS和T6SS.的反应.
  • 确定T3SS和T6SS在A. citrulli感染和细菌间竞争中的作用.
  • 探索T6SS作为生物控制剂的潜力.

主要方法:

  • 在植物内感染T3SS和T6SS期间对植物细胞的转录组分析.
  • 产生和表征T3SS无和T6SS活性突变物.
  • 在体外和体内测试以评估毒性和竞争适应性.

主要成果:

  • T3SS和T6SS引起了不同的植物细胞反应,分别影响了像烯胺生物合成和光合作用等途径.
  • T6SS对于A. citrulli对抗植物圈细菌的生存至关重要,但对于植物的毒性至关重要.
  • 一种T6SS活性,T3SS无突变 (Acav) 有效地抑制其他植物病原体,如Xanthomonas oryzae pv. 一个叫做Oryzae的.

结论:

  • A. citrulli的T6SS对植物是非致病的,可以重新使用.
  • 经过工程改造的T6SS活跃,有毒的A. citrulli突变体显示出对植物病原体的生物控制剂的潜力.
  • 这一战略为农业中化学农药提供了一个可持续的替代方案.