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<p>Drought is the most prevalent environmental stress in crop production, posing a significant danger to food security. Microorganisms in the crop root zone affect crop growth and development, enhance effective nutrient use, and resist adversity hazards. Our study was to analyze the changes and functional differences of rhizosphere soil communities in sugar beet under drought stress. In this study, the rhizosphere soil of sugar beet were collected and analyzed by high-throughput sequencing and bioinformatics at 7, 14 and 21&#xa0;days after water control treatment. There were two levels of water control treatment: normal water supply (relative soil water content = 70%, CK) and drought stress (relative soil water content = 30%, DR). Drought stress can change the microbial community composition within the sugar beet rhizosphere area. <i>Geitlerinema</i> and <i>Paecilomyces</i> presented relatively high drought resistance. The network density of the bacterial community in the rhizosphere soil of sugar beet was greater than that of the fungal community. Among bacteria, <i>Pirellula</i> exhibited the highest degree and positive correlation throughout the entire network. Our results provide new insights into drought resistance mechanisms and lay a foundation for further studies exploring complex microbiology regulation networks in sugar beet.</p>

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Rhizosphere microbial community confers drought tolerance to sugar beet

  • 期刊论文

  • 发表日期：

    2026年5月6日

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  • Chunlei Zou,
  • Xinyu Wang,
  • Tao Jin,
  • Junming Ma,
  • Chunlai Zhang,
  • Zhijia Gai,
  • Jialin Chen

摘要

Drought is the most prevalent environmental stress in crop production, posing a significant danger to food security. Microorganisms in the crop root zone affect crop growth and development, enhance effective nutrient use, and resist adversity hazards. Our study was to analyze the changes and functional differences of rhizosphere soil communities in sugar beet under drought stress. In this study, the rhizosphere soil of sugar beet were collected and analyzed by high-throughput sequencing and bioinformatics at 7, 14 and 21 days after water control treatment. There were two levels of water control treatment: normal water supply (relative soil water content = 70%, CK) and drought stress (relative soil water content = 30%, DR). Drought stress can change the microbial community composition within the sugar beet rhizosphere area. Geitlerinema and Paecilomyces presented relatively high drought resistance. The network density of the bacterial community in the rhizosphere soil of sugar beet was greater than that of the fungal community. Among bacteria, Pirellula exhibited the highest degree and positive correlation throughout the entire network. Our results provide new insights into drought resistance mechanisms and lay a foundation for further studies exploring complex microbiology regulation networks in sugar beet.