.的直干型和扭干型根际微生物群落的多样性和结构比较。 需注意，原文句末“of.”表述不完整，可能存在信息缺失。
Comparison of the diversity and structure of the rhizosphere microbial community between the straight and twisted trunk types of .
作者信息
Li Peiling, Zong Dan, Gan Peihua, Li Hailin, Wu Zhiyang, Li Fahong, Zhao Changlin, Li Laigeng, He Chengzhong
机构信息
Key Laboratory for Forest Genetics and Tree Improvement and Propagation in Universities of Yunnan, Southwest Forestry University, Kunming, China.
Key Laboratory of Biodiversity Conservation in Southwest China, State Forestry Administration, Southwest Forestry University, Kunming, China.
出版信息
Front Microbiol. 2023 Feb 23;14:1066805. doi: 10.3389/fmicb.2023.1066805. eCollection 2023.
BACKGROUND
is a major silvicultural species in Southwest China. Currently, large areas of twisted-trunk stands severely restrict its productivity. Different categories of rhizosphere microbes evolve alongside plants and environments and play an important role in the growth and ecological fitness of their host plant. However, the diversity and structure of the rhizosphere microbial communities between P. yunnanensis with two different trunk types-straight and twisted-remain unclear.
METHODS
We collected the rhizosphere soil of 5 trees with the straight and 5 trees with the twisted trunk type in each of three sites in Yunnan province. We assessed and compared the diversity and structure of the rhizosphere microbial communities between with two different trunk types by Illumina sequencing of 16S rRNA genes and internal transcribed spacer (ITS) regions.
RESULTS
The available phosphorus in soil differed significantly between with straight and twisted trunks. Available potassium had a significant effect on fungi. dominated the rhizosphere soils of the straight trunk type, while was predominant in the rhizosphere soils of the twisted trunk type. Trunk types significantly explained 6.79% of the variance in bacterial communities.
CONCLUSION
This study revealed the composition and diversity of bacterial and fungal groups in the rhizosphere soil of with straight and twisted trunk types, providing proper microbial information for different plant phenotypes.
背景
是中国西南地区主要的造林树种。目前，大面积的扭干林分严重限制了其生产力。不同类别的根际微生物与植物和环境共同进化，对其宿主植物的生长和生态适应性起着重要作用。然而，云南松两种不同树干类型（直干和扭干）的根际微生物群落的多样性和结构仍不清楚。
方法
我们在云南省的三个地点分别采集了5株直干型和5株扭干型云南松的根际土壤。通过对16S rRNA基因和内转录间隔区（ITS）区域进行Illumina测序，评估和比较了两种不同树干类型云南松根际微生物群落的多样性和结构。
结果
直干和扭干云南松土壤中的有效磷存在显著差异。速效钾对真菌有显著影响。直干型根际土壤中以 为主，而扭干型根际土壤中 占优势。树干类型显著解释了细菌群落6.79%的变异。
结论
本研究揭示了直干型和扭干型云南松根际土壤中细菌和真菌类群的组成和多样性，为不同植物表型提供了适当的微生物信息。
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