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Acta Horticulturae Sinica ›› 2026, Vol. 53 ›› Issue (4): 1088-1100.doi: 10.16420/j.issn.0513-353x.2026-0109

• Research on Arbuscular Mycorrhizal Fungi in Horticultural Plants • Previous Articles     Next Articles

AM Fungal Community in Root Zone Soil Grown with Different Paeonia suffruticosa Cultivars

LI Xia2, BU Xinyu1, XU Meng1, LONG Xin1, LIU Zongyao1, SUN Lei2, GUO Shaoxia1,*()   

  1. 1 Department of Landscape Architecture and Forestry,Qingdao Agricultural University,Qingdao,Shandong 266109,China
    2 Department of Agriculture and Bioengineering,Heze University,Heze,Shandong 274000,China
  • Received:2026-02-28 Revised:2026-03-23 Online:2026-04-25 Published:2026-04-20
  • Contact: GUO Shaoxia

Abstract:

Root-zone soil samples were collected from nine major cultivars of peony(Paeonia suffruticosa)grown in Heze,Shandong,China. High-throughput sequencing was employed to compare the diversity and community structure of arbuscular mycorrhizal(AM)fungi in these soils. In addition,correlations between the AM fungal community and soil chemical properties, as well as between the AM fungal and bacterial communities,were analyzed. The results indicated that there were no significant differences of AM fungal diversity in the root-zone soil of the nine peony cultivars. All of the AM fungi in whole samples belonged to the Glomerales, and the dominant family was Glomeraceae. The dominant genus in the root-zone soils of‘Qingtianfen'(relative abundance 65%),‘Heifuren'(65%),‘Zhaofen' (64%),‘Daojin'(63%),and‘Yaohuang'(54%)was Sclerocystis. Glomus was the dominant genus in‘Huawang'(82%),‘Doulü'(63%),and‘Caiju'(55%). While‘Huangguan'(37%,30%)exhibited co-dominance of Glomus and Sclerocystis. Available potassium and organic matter were the primary soil factors positively correlated with the AM fungal community abundance in the root zones of‘Yaohuang'‘Doulü'‘Caiju'‘Heifuren'‘Daojin'‘Huawang'and‘Huangguan'. The relative abundance of Sclerocystis was significantly positively correlated with Nitrospira and unclassified bacteria(d_Bacteria)within the domain bacteria. Furthermore,the unclassified genus(f_Glomeraceae)within the family Glomeraceae showed significant positive correlations with unclassified bacteria p25(c_bacteria p25)and Peribacillus. It is concluded that the peony cultivars can indirectly affect the community structure of AM fungi by altering the content of available potassium and organic matter in the root-zone soil. Moreover, the results indicate potential functional associations between specific AM fungal taxa and bacterial groups in the root-zone soil of peony.

Key words: Paeonia suffruticosa, cultivar, soil, AM fungi, bacterial community