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Ascomycota in the litter of Inga edulis and Lafoensia pacari in an Atlantic Forest remnant in southeastern Bahia state, Brazil
Abstract The Ascomycota population in the litter of Inga edulis and Lafoensia pacari trees was identified and its richness was evaluated. The collections were carried out from October 2018 to July 2019. Twenty fallen leaves were collected in different stages of decomposition. The leaf samples were c...
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Published in: | Rodriguésia 2022, Vol.73 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites |
Online Access: | Get full text |
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Summary: | Abstract The Ascomycota population in the litter of Inga edulis and Lafoensia pacari trees was identified and its richness was evaluated. The collections were carried out from October 2018 to July 2019. Twenty fallen leaves were collected in different stages of decomposition. The leaf samples were carefully washed in running water and incubated in humid chambers. The fungal structures were mounted in PVLG resin and observed under a light microscope. The identification was done by consulting the specific literature. Distribution studies included richness, frequency, constancy, and similarity of the fungal populations. The total richness was 48 species and 36 genera corresponding to 58.33% in I. edulis and 60.41% in L. pacari. Most taxa had sporadic frequency and accidental constancy. There was low similarity between plant species. Ascomycota populations are well represented in Inga edulis and Lafoensia pacari litter. Richness, frequency, constancy, and similarity of these populations varied little in function of the collection date, climate and host plant. Lower richness observed in the second collection may reflect the effect of reduced humidity observed in that time of the year.
Resumo A população de Ascomycota na serapilheira das árvores Inga edulis e Lafoensia pacari foi identificada e avaliada a sua riqueza. As coletas foram realizadas no período de outubro de 2018 a julho de 2019. Foram coletadas 20 folhas caídas em diferentes estágios de decomposição. As amostras de folhas foram cuidadosamente lavadas em água corrente e incubadas em câmaras úmidas. As estruturas do fungo foram montadas em resina PVLG e observadas ao microscópio de luz. A identificação foi realizada consultando a literatura específica. A riqueza total foi de 48 espécies e 36 gêneros correspondendo a 58,33% em I. edulis e 60,41% em L. pacari. A maioria dos táxons possui freqüência esporádica e constância acidental. Houve baixa similaridade entre as espécies de plantas. Inga edulis e L. pacari possuem grandes populações de Ascomycota na separilheira delas. A riqueza, freqüência, constância e similaridade dessas populações variaram pouco em função da época de coleta, clima e planta hospedeira. A baixa riqueza observada na segunda coleta pode refletir o efeito da menor umidade observada naquela época do ano. |
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ISSN: | 0370-6583 2175-7860 |
DOI: | 10.1590/2175-7860202273040 |