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<p><i>Camellia oleifera</i>, a distinctive woody oil-bearing species indigenous to China, is susceptible to anthracnose which significantly impacts both the quantity and quality of the oil produced. This study investigates the biological role of the <i>CfRGS1</i> gene, a G protein signal regulator found in <i>Colletotrichum fructicola</i>, in order to elucidate the pathogenic mechanism of this pathogen, which could be helpful for the control of anthracnose in <i>Ca. oleifera</i>. The identification and functional analysis of the G protein signaling regulator CfRgs1 in <i>C. fructicola</i> were conducted as part of this research. Our research demonstrated that the targeted deletion of the <i>CfRGS1</i> gene in <i>C. fructicola</i> resulted in impaired growth and appressorium formation. Additionally, the mutants exhibited deficiencies in responding to cell wall integrity and oxidative stress, ultimately leading to decreased pathogenicity. This study highlights the significance of the G protein signaling pathway in the pathogenicity of <i>C. fructicola</i>, suggesting that targeting CfRgs1 could be a promising approach for the development of novel fungicides.</p>

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The G protein signaling regulator CfRgs1 regulates growth, and pathogenicity of Colletotrichum fructicola

  • 期刊论文

  • 发表日期：

    2025年2月25日

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  • Qiuyue Hu,
  • He Li

摘要

Camellia oleifera, a distinctive woody oil-bearing species indigenous to China, is susceptible to anthracnose which significantly impacts both the quantity and quality of the oil produced. This study investigates the biological role of the CfRGS1 gene, a G protein signal regulator found in Colletotrichum fructicola, in order to elucidate the pathogenic mechanism of this pathogen, which could be helpful for the control of anthracnose in Ca. oleifera. The identification and functional analysis of the G protein signaling regulator CfRgs1 in C. fructicola were conducted as part of this research. Our research demonstrated that the targeted deletion of the CfRGS1 gene in C. fructicola resulted in impaired growth and appressorium formation. Additionally, the mutants exhibited deficiencies in responding to cell wall integrity and oxidative stress, ultimately leading to decreased pathogenicity. This study highlights the significance of the G protein signaling pathway in the pathogenicity of C. fructicola, suggesting that targeting CfRgs1 could be a promising approach for the development of novel fungicides.