| Texto completo | |
| Autor(es): |
da Costa, Bruno Ruiz Brandao
;
Anselmo-Moreira, Fernanda
;
Nascimento, Alex
;
Pedrosa, Giselle da Silva
;
Catharino, Eduardo Luis Martins
;
Borbon, Agnes
;
Fornaro, Adalgiza
;
Furlan, Claudia Maria
;
de Souza, Silvia Ribeiro
Número total de Autores: 9
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ATMOSPHERIC ENVIRONMENT-X; v. 27, p. 10-pg., 2025-08-01. |
| Resumo | |
Despite the significance of the Atlantic Forest, little is known about the biogenic volatile organic compound (BVOC) emissions from its tree species. This study aimed to characterize sesquiterpene (SQT) emissions from ten dominant species in a forest remnant near Sao Paulo, Brazil, using a dynamic enclosure system and gas chromatography-mass spectrometry (GC-MS). A total of 24 SQTs were annotated, including seven oxygenated sesquiterpenes (OSQTs). Emissions ranged from undetectable in Luehea divaricata to 277.54 ng gDM- 1 h-1 in Alchornea sidifolia. Hierarchical clustering grouped species into four clusters based on emission intensity and chemical diversity: (1) high emission with low chemical diversity (A. sidifolia), (2) moderate-to-high emission with high diversity (Machaerium brasiliense and Allophylus edulis), (3) moderate emission with low (Guarea macrophylla) to moderate diversity (Machaerium nyctitans, Lithraea molleoides, and Casearia sylvestris), and (4) low emissions and low (Pittosporum undulatum) to moderate diversity (Nectandra barbellata), or undetectable emissions (Luehea divaricata). Most species predominantly emitted alpha-copaene, (3-caryophyllene, or alpha-cubebene, each linked to defensive/ecological functions like herbivore deterrence and antimicrobial activity. Species with high (3-caryophyllene emissions (A. edulis, L. molleoides) or OSQT diversity (A. sidifolia, M. brasiliense, M. nyctitans) emerged as promising candidates for bioprospecting. Conversely, from a SQT-emission perspective, low-emitting species (N. barbellata, P. undulatum, and L. divaricata) represent suitable potential candidates for urban greening due to their limited contribution to secondary pollutant formation. These findings provide a foundation for future BVOC research in the Atlantic Forest and support the strategic selection and application of species based on their SQT emission profiles. (AU) | |
| Processo FAPESP: | 22/13213-1 - Ecometabolômica para um melhor entendimento da reposta das plantas à poluição do ar |
| Beneficiário: | Bruno Ruiz Brandao da Costa |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 17/50278-6 - BIOMASP: biogenic VOCs in the metropolitan area of São Paulo |
| Beneficiário: | Adalgiza Fornaro |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 16/25109-3 - Voláteis de plantas em remanescentes da Mata Atlântica sob influência antrópica |
| Beneficiário: | Silvia Ribeiro de Souza |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 20/07141-2 - Emissões biogênicas, química e impactos na Região Metropolitana de São Paulo: BIOMASP+ |
| Beneficiário: | Adalgiza Fornaro |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 22/07326-8 - Perfil da emissão de compostos orgânicos voláteis biogênicos (COVB) e principais respostas metabolômicas a poluentes atmosféricos em dois remanescentes de Mata Atlântica em SP, Brasil |
| Beneficiário: | Fernanda Anselmo Moreira |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |