Succession stages and soil attributes influence the structure of arbuscular mycorrhizal fungi communities in the Atlantic Forest

Abstract The objective of this study was to determine the structure, diversity, composition and drivers of AMF communities in succession areas of Atlantic Forest. Soil and root samples were collected in three natural ecosystems (mature rainforests, early and late secondary forests) with three areas...

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Bibliographic Details
Published in:Acta Botânica Brasílica 2023-01, Vol.37
Main Authors: Silva, Jailma Alves da, Assis, Daniele Magna Azevedo de, Passos, José Hilton dos, Oehl, Fritz, Maia, Leonor Costa
Format: Article
Language:English
Subjects:
Community assembly
Glomeromycota
glomerospores
mycorrhiza
tropical rainforest
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Summary:Abstract The objective of this study was to determine the structure, diversity, composition and drivers of AMF communities in succession areas of Atlantic Forest. Soil and root samples were collected in three natural ecosystems (mature rainforests, early and late secondary forests) with three areas on each ecosystem. In total, 38 AMF taxa were identified in field samples and three more in trap cultures with a greater richness of Acaulospora and Glomus. Based on a richness estimator, 70% of the AMF species were identified. Highest rates of root colonization and number of glomerospores were recorded in the early secondary forest. AMF species diversity differed between early and late forests. The main drivers of AMF distribution were coarse and fine sand, silt, Al, P, Na, pH and base saturation. The greatest number of exclusive species was recorded in the mature rainforests. The distribution of AMF communities was influenced by different successional stages and some soil attributes.
ISSN:0102-3306
1677-941X
DOI:10.1590/1677-941x-abb-2023-0015