Effect of foliar application of salicylic acid, hydrogen peroxide and a xyloglucan oligosaccharide on capsiate content and gene expression associatedwith capsinoids synthesis in Capsicum annuum L.
J Biosci
; 42(2): 245-250, 2017 Jun.
Article
em En
| MEDLINE
| ID: mdl-28569248
Capsinoids are non-pungent analogues of capsaicinoids in pepper (Capsicum spp). The absence of pungency, in addition to their biological activities similar to that of capsaicinoids such as anti-inflammatory, antimicrobial, and antioxidant properties, makes capsinoids an excellent option for increasing use in human and animal nutrition, as well as health and pharmaceutical industries. There are only few sources of pepper producing capsinoids, and one of them (accession 509-45-1), Capsicum annuum L., is a potential source for increasing capsinoids content using strategies as controlled elicitation during plant production in the greenhouse. In this research we evaluated the effect of weekly and one-day-before-harvest foliar applications of hydrogen peroxide, salicylic acid and a xyloglucan oligosaccharide on the concentration of capsiate in fruits of this pepper accession, as well as the gene expression of phenylalanine ammonia-lyase (pal), putative aminotransferase (pamt), capsaicin synthase (at3) and ß-keto acyl synthase (kas). Results showed that the two tested concentrations of H2O2 significantly increased capsiate content and gene expression associated with capsaicinoids (pamt, at3 and kas) and the phenylpropanoids (pal) pathways. Plant yield was not affected using this induction strategy. Our results indicated that the pre-harvest and weekly application of hydrogen peroxide and xyloglucan oligosaccharide improved production of capsiate in C. annuum L.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oligossacarídeos
/
Capsicum
/
Capsaicina
/
Folhas de Planta
/
Ácido Salicílico
/
Peróxido de Hidrogênio
Tipo de estudo:
Risk_factors_studies
Idioma:
En
Revista:
J Biosci
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
Índia