| Autor: |
Su D; 1 College of Life Science and Engineering, Shenyang University, Shenyang 110044, China.; 2 College of Environment and Resources, Dalian Minzu University, Dalian 116600, Liaoning, China., Sun R; 1 College of Life Science and Engineering, Shenyang University, Shenyang 110044, China., Xu RF; 1 College of Life Science and Engineering, Shenyang University, Shenyang 110044, China., Zhang WH; 1 College of Life Science and Engineering, Shenyang University, Shenyang 110044, China., Lyu GZ; 2 College of Environment and Resources, Dalian Minzu University, Dalian 116600, Liaoning, China. |
| Jazyk: |
čínština |
| Zdroj: |
Ying yong sheng tai xue bao = The journal of applied ecology [Ying Yong Sheng Tai Xue Bao] 2024 Jun; Vol. 35 (6), pp. 1689-1694. |
| DOI: |
10.13287/j.1001-9332.202406.029 |
| Abstrakt: |
We isolated the dark septate endophytic (DSE) fungi from roots of typical plant species in the tundra of Changbai Mountains Nature Reserve, including Rhododendron aureum , R. conferentiatum , Vaccinium uliginosum , and Dryas octopetala , and studied their colonization. We further investigated the DSE community composition and species diversity of the four tundra plant species by using morphological characteristics combined with rDNA ITS sequence analysis. The results showed that DSE formed a typical structure of "microsclerotia" in roots of the four plant species. A total of 69 strains of DSE fungi were isolated from the root samples, belonging to 10 genera, and 12 species. They were Phialocephala fortinii , Alternaria alternata , A. tenuissima , Epicocum nigrum , Canariomyces microsporus , Colletotrichum spaethianum , C. camelliae , Leptophoria sp., Cladosporium cladosporioides , Phoma sp., Cadophora sp., and Discosia italica , respectively. The DSE fungal species diversity was rich, and all these fungal species were firstly reported as DSE fungi in the alpine tundra belt of China. Among them, Phialocephala fortinii was the common and dominant species of all tundra plants. The Simpson, Pielou, and Shannon diversity indices of DSE fungi of the four plant species of tundra differed significantly. Our results showed that tundra plants have rich diversity of DSE fungi, and they can form a good symbiotic relationship, which enhance the adaptability of tundra plants to the harsh environment. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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