Journal of Dali University ›› 2021, Vol. 6 ›› Issue (12): 59-64.

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Preliminary Study on Competition and Synergistic Mechanisms of Nematode-Trapping Fungi in Sterile Soil

  

  1. 1. Institute of Eastern-Himalaya Biodiversity Research, Dali, Yunnan 671003, China;2. Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China, Dali, Yunnan 671003, China; 3. The Provincial Innovation Team of Biodiversity Conservation and Utility of the Three Parallel Rivers Region from Dali University, Dali, Yunnan 671003, China
  • Received:2021-03-22 Online:2021-12-15 Published:2022-01-14

Abstract:

Objective To gain insight into the competition and coexistence relationships among different microbiology species.Methods Three nematode-trapping fungi species from genus Arthrobotrys were inoculated into sterile soil by different patterns and the occurrence frequencies were assessed every week. ResultsThe occurrence frequencies of A. musiformis was the highest and it can assist the other two species to exist through the whole experiment period when three species were mixed inoculated at same time point. There was priority effect of mixed inoculation at different time points and its duration was affected by the interspecific synergy. In addition the inoculation of A. thaumasium had positive effects on the occurrence frequencies value of A. oligospora. ConclusionDifferent nematode-trapping fungi species from same genus can coexist competitively and the priority effects and synergistic effects affect the final community composition.

Key words:

"> microorganism, biodiversity, synergistic effects, priority effect, community assembly

CLC Number: