Título:	Metabolic dynamics of primary reserves during germination and early growth of cultivated Brazil nut tree genotypes.
Autoria:	GONÇALVES, E. CARVALHO, J. VIANA, C. SANTOS, P. GONÇALVES, K. COSTA, K. MARTINS, A. SILVA, S. LIMA, R. M. B. de ALBUQUERQUE, P. FERNANDES, A. ARAÚJO, W. GONÇALVES, J. F.
Afiliação:	ELMER GONÇALVES, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; JOSIANE CARVALHO, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; CARIS VIANA, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; PEDRO SANTOS, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; KATHARINE GONÇALVES, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; KAREN COSTA, UNIVERSIDADE FEDERAL DO SUL E SUDESTE DO PARÁ; AUXILIADORA MARTINS, UNIVERSIDADE FEDERAL DE VIÇOSA; SILVANA SILVA, UNIVERSIDADE DO ESTADO DO AMAZONAS; ROBERVAL MONTEIRO BEZERRA DE LIMA, CNPF; PATRÍCIA ALBUQUERQUE, UNIVERSIDADE DO ESTADO DO AMAZONAS; ANDREIA FERNANDES, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA; WAGNER ARAÚJO, UNIVERSIDADE FEDERAL DE VIÇOSA; JOSÉ FRANCISCO GONÇALVES, INSTITUTO NACIONAL DE PESQUISAS DA AMAZÔNIA.
Ano de publicação:	2025
Referência:	Seeds, v. 4, n. 4, 60, 2025.
Conteúdo:	Given the reduced resilience of the Amazon rainforest due to deforestation, identifying high-quality genetic markers for the propagation of native species is crucial for forest regeneration. This study investigated metabolic dynamics during Brazil nut (Bertholletia excelsa) germination to identify biochemical markers for selecting superior genotypes. We analyzed primary reserves (carbohydrates, lipids, proteins) and minerals in two genotypes, 606 and Santa Fé, in seven germination stages. Our results revealed distinct metabolic patterns. Genotype 606 showed 101.73% greater efficiency in the transient accumulation of starch, 34.86% higher degradation of lipids, and 34.86% higher transitory synthesis of soluble proteins. Conversely, Santa Fé was 16.8% more efficient in amino acid synthesis and 795.33% in boron compartmentalization, though less so in sucrose (2.17%) and in lipid synthesis (24.84%). Overall, early germination stages involved starch, sucrose degradation and mineral consumption. During post-germinative stages, protein and lipid degradation likely fueled gluconeogenic pathways and supported carbohydrate synthesis and seedling growth. This work increases the knowledge on Brazil nut germination physiology and identifies metabolic markers that differentiate genotypes. These findings are fundamental for our understanding of primary metabolism turnover in B. excelsa and provide a basis to support forest restoration and genetic improvement programs. In addition, we hope to contribute to the selection of superior high-performance genotypes, which are essential for recovering degraded areas and enhancing productive plantations in the Amazon region.
Thesagro:	Germinação Semente Florestal Bioquímica Vegetal Bertholletia Excelsa Marcador Genético
NAL Thesaurus:	Amazonia Biochemistry Seed germination Seeds
Palavras-chave:	Metabolic turnover Germination physiology Seed biochemistry Fisiologia da germinação Castanha-do-Pará Bioquímica de sementes
ISSN:	2674-1024
Digital Object Identifier:	https://doi.org/10.3390/seeds4040060
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPF)