Structural and functional changes in the fungal community of plant detritus in an invaded Atlantic Forest

BMC Microbiology

Wagner Antonio Chiba de Castro¹  Giselle Cristina de Oliveira Vaz¹  Rafaella Costa Bonugli-Santos¹  Jaqueline Bail¹  Jose Alejandro Morales Gomez¹ 

[1] Federal University of Latin American Integration (UNILA), Institute Latin American of Nature and Life Sciences (ILACNV), Interdisciplinary Center of Life Sciences (CICV);

关键词: Ascomycota;    Basidiomycota;    Iguaçu National Park;    Litter decomposition;    Tradescantia zebrina;   

DOI  :  10.1186/s12866-021-02431-8

来源: DOAJ

【 摘 要 】

Abstract Background Changes in the fungal community in the litter decomposition by invasive plants can negatively impact nutrient cycling in natural ecosystems. One still does not know the dimension of this hypothesis, but apparently, it is not despicable. This study evaluated the assemblage composition of fungi during litter decomposition in areas of Atlantic Forest invaded or not invaded by Tradescantia zebrina using Illumina MiSeq and metabarcoding analysis. Results The invaded sample showed significantly higher richness and a difference in the species dominance than the invaded litter. Ascomycota was the first most abundant phylum in both areas. Even so, the dissimilarity between areas can be evidenced. The fungal from Basidiomycota were very representative in the non-invaded areas (ranged from an abundance of 43.29% in the non-invaded to 2.35% in the invaded sample). The genus Lepiota can indicate the primary functional group related to biomass degradation and showed the might difference about the invaded areas due to its essential reduction by the invader. In the invaded sample, there was a total absence of the endophyte-undefined saprotroph guild. Also, some genera not taxonomically characterized were eliminated in the invaded sample, revealing that the fungal biodiversity of areas has not yet been thoroughly characterized. Conclusions Hence, makes impossible the real interpretation of the invasive plant impact, showing the importance of continuing research on fungal biodiversity. It is important to emphasize that the replacement of the native species by T. zebrina may be responsible for the elimination of fungal groups that have not yet been identified.

【 授权许可】

Unknown