Metabolic response induced by abiotic elicitors in Anacardium othonianum seedlings

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Pedroso, Rita Cassia Nascimento ; Gazolla, Ana Paula ; Hara, Alessandra Cristina Boffino de Almeida Monteiro ; Sales, Juliana de Fatima ; Silva, Fabiano Guimaraes ; Dias, Herbert Junior ; Crotti, Antonio Eduardo Miller ; Silva, Marcio Luis Andrade ; Cunha, Wilson Roberto ; Pauletti, Patricia Mendonca ; de Jesus, Ester Goncalves ; Santos, Mario F. C. ; Januario, Ana Helena

• Document type: Journal article
• Source: NATURAL PRODUCT RESEARCH; v. N/A, p. 7-pg., 2023-06-12.

Abstract

Applying elicitors in plants growing under natural conditions change the metabolic content of volatile compounds extracted from their tissues. Here, we have investigated how abiotic elicitors influence the volatile composition of the ethyl acetate extract of Anacardium othonianum seedlings propagated in vitro and ex-vitro cultures. Abiotic factors such as salicylic acid, silver nitrate, light quality, and cultivation mode affected the composition of volatile compounds in ethyl acetate extract of A. othonianum leaves seedlings. GC/MS analysis demonstrated that alpha-tocopherol was the main metabolite in cultures added with chemical elicitors, reaching 22.48 +/- 4.06% in the case of 30 mu M salicylic acid. Higher concentrations of salicylic acid decreased the amount of alpha-tocopherol. The addition of AgNO3 had a linear effect on alpha-tocopherol. Thus, the production of this metabolite indicates that salicylic acid and AgNO3 elicitors positively affect alpha-tocopherol production at specific concentrations helping to understand how plant culture can be better manipulated. (AU)

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