Inferring catabolism through analysis of amino acid balance in Vicia faba L. seedlings

Moreira, Thiago Batista; Williams, Thomas Christopher Rhys

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Campo DC	Valor	Idioma
dc.contributor.author	Moreira, Thiago Batista	-
dc.contributor.author	Williams, Thomas Christopher Rhys	-
dc.date.accessioned	2022-04-11T14:48:51Z	-
dc.date.available	2022-04-11T14:48:51Z	-
dc.date.issued	2021	-
dc.identifier.citation	MOREIRA, Thiago Batista, WILLIAMS, Thomas Christopher Rhys. Inferring catabolism through analysis of amino acid balance in Vicia faba L. seedlings. Brazilian Journal of Botany, v. 44, p. 859-868, 2021. DOI: https://doi.org/10.1007/s40415-021-00755-3.	pt_BR
dc.identifier.uri	https://repositorio.unb.br/handle/10482/43363	-
dc.language.iso	Inglês	pt_BR
dc.publisher	Springer	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Inferring catabolism through analysis of amino acid balance in Vicia faba L. seedlings	pt_BR
dc.type	Artigo	pt_BR
dc.subject.keyword	Feijão-fava	pt_BR
dc.identifier.doi	https://doi.org/10.1007/s40415-021-00755-3	pt_BR
dc.relation.publisherversion	https://link.springer.com/article/10.1007/s40415-021-00755-3	pt_BR
dc.description.abstract1	Whilst carbohydrates are the principal respiratory substrate in plants, under certain circumstances amino acids may be catabolised in order to produce energy, reducing equivalents and precursors for biosynthesis. This situation may occur during the phase of reserve mobilisation in seedlings, and this period of development therefore represents an opportunity to identify which amino acids are in fact degraded. In this study, we therefore carried out an analysis of amino acid balance in Vicia faba L. seedlings by quantifying both free and protein bound amino acids at two time periods. Comparison of the total amounts of amino acids points to the catabolism of at least eight amino acids, whilst the amounts of others remained constant during the period analysed. GC–MS-based metabolite profiling detected several intermediates of catabolism and suggested that carbon may be directed from amino acid catabolism into the TCA cycle. The pathways by which two of the amino acids, histidine and phenylalanine, are catabolised have received limited study, suggesting that this may represent a useful experimental system for further investigation of these processes.	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0003-1954-2961	pt_BR
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