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<p>The medicinal plant <i>Ziziphus jujuba</i> var. <i>spinosa</i> (Bunge) Hu ex H. F. Chow (sour jujube) holds great significance in the Taihang Mountains, China. It is vital to explore the beneficial functional microorganisms in the rhizosphere of sour jujubes. Rhizosphere soil (RS) and nonrhizosphere soil (NS) were collected from the Taihang Mountains of southern Hebei Province, which included the Baoding (A), Shijiazhuang (B) and Xingtai (C) areas. The rhizospheric bacterial community diversity of sour jujube was analyzed using high-throughput sequencing of 16S rRNA. Our study showed that Proteobacteria and Acidobacteria was the highest among all microbial species examined at the phylum level. There were 8250 OTUs and 8136 OTUs in the RS and NS treatment, while there were only 4012 common bacterial OTUs, respectively. The percentages of <i>Unspecified _ RB41</i> and <i>Unspecified _ MND1</i> in the C area of Xingtai were greater than those in the A area and B area. A comparison of the OTU profiles between the two groups revealed a significant difference in the <i>Gammaproteobacteria</i> and <i>Haemophilus</i> influenzae flora in the RS, while the <i>Granulicatella</i> and <i>Carnobacteriaceae</i> flora in the NS were also significantly different under the genus classification interval. Co-occurrence network analysis showed the highest degree of association in RS were Bacteroidota, Methylomirabilota, Acidobacteriota, respectively. Conversely, in NS, the three most prevalent phylum were Bdellovibrionota_E, Verrucomicrobiota, Dependentiae. The FAPROTAX functional predicted that there were significantly more aerobic and nitrification functional communities in the RS than in the NS. This study provides crucial data on both the structure and function of the soil microbial community diversity of sour jujube, which further aids in comprehending the genuineness of sour jujube in the Taihang Mountains.</p>

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Structure and function of rhizosphere and nonrhizosphere bacterial communities of Ziziphus jujuba var. spinosa (Bunge) Hu ex H. F. Chow in the southern Taihang Mountains, China

  • 期刊论文

  • 发表日期：

    2025年1月7日

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  • Xiangrui Fu,
  • Xin Meng,
  • Donglai Ma,
  • Yuguang Zheng,
  • Jianming Jiang,
  • Yuping Yan,
  • Xian Gu

摘要

The medicinal plant Ziziphus jujuba var. spinosa (Bunge) Hu ex H. F. Chow (sour jujube) holds great significance in the Taihang Mountains, China. It is vital to explore the beneficial functional microorganisms in the rhizosphere of sour jujubes. Rhizosphere soil (RS) and nonrhizosphere soil (NS) were collected from the Taihang Mountains of southern Hebei Province, which included the Baoding (A), Shijiazhuang (B) and Xingtai (C) areas. The rhizospheric bacterial community diversity of sour jujube was analyzed using high-throughput sequencing of 16S rRNA. Our study showed that Proteobacteria and Acidobacteria was the highest among all microbial species examined at the phylum level. There were 8250 OTUs and 8136 OTUs in the RS and NS treatment, while there were only 4012 common bacterial OTUs, respectively. The percentages of Unspecified _ RB41 and Unspecified _ MND1 in the C area of Xingtai were greater than those in the A area and B area. A comparison of the OTU profiles between the two groups revealed a significant difference in the Gammaproteobacteria and Haemophilus influenzae flora in the RS, while the Granulicatella and Carnobacteriaceae flora in the NS were also significantly different under the genus classification interval. Co-occurrence network analysis showed the highest degree of association in RS were Bacteroidota, Methylomirabilota, Acidobacteriota, respectively. Conversely, in NS, the three most prevalent phylum were Bdellovibrionota_E, Verrucomicrobiota, Dependentiae. The FAPROTAX functional predicted that there were significantly more aerobic and nitrification functional communities in the RS than in the NS. This study provides crucial data on both the structure and function of the soil microbial community diversity of sour jujube, which further aids in comprehending the genuineness of sour jujube in the Taihang Mountains.