TY - JOUR
T1 - Phenolic fingerprinting, antioxidant, and deterrent potentials of persicaria maculosa extracts
AU - Quesada-Romero, Luisa
AU - Fernández-Galleguillos, Carlos
AU - Bergmann, Jan
AU - Amorós, María Eugenia
AU - Jiménez-Aspeé, Felipe
AU - González, Andrés
AU - Simirgiotis, Mario
AU - Rossini, Carmen
N1 - Funding Information:
Funding: This research received funds from FONDECYT (Postdoctorado grant 3140277 to L.Q.-R.) and Comisión Sectorial de Investigación Científica, Universidad de la República-Uruguay (Programa Grupos, https://www.csic. edu.uy/, Grant 2014_980, Grupo 1734). Mario Simirgiotis acknowledge FONDECYT 1180059.
Publisher Copyright:
© 2020 by the authors.
PY - 2020/7
Y1 - 2020/7
N2 - Persicaria maculosa (Polygonaceae) (known as lady's thumb) is an annual morphologically variable weed that is widely distributed in Chile. The purpose of this study was to investigate the antifeedant potential of methanolic (MeOH), ethanolic (EtOH), and dichloromethane (DCM) extracts from the aerial parts of this plant collected in the Valparaíso and Curicó provinces (Chile) and relate this activity to the antioxidant capacity and the presence of phenolic compounds in the extracts. A phenolic profile based on HPLC-ESI-MS/MS allowed the identification of 26 phenolic compounds, most of them glycosyl derivatives of isorhamnetin, quercetin, and kaempferol. In addition, the total phenolic content (TP), total flavonoids (TF), and antioxidant activity measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH), superoxide anion scavenging (O2-), ferric-reducing antioxidant power (FRAP), and cupric-reducing antioxidant capacity (CUPRAC) of the extracts are reported. The antifeedant potentials of the plant extracts were tested against Epilachna paenulata, Pseudaletia adultera, Macrosiphum euphorbiae, and Diaphorina citri insects for the first time. The activity against the aphid M. euphorbiae was significant for the DCM extracts of plants from Valparaíso and Curicó (settling % = 23% ± 4% and 23% ± 5%, respectively). The antifeedant activities against the beetle E. paenulata and the lepidoptera P. adultera were significant for Valparaíso extracts, especially when tested against E. Paenulata (IFP = 1.0 ± 0.0). Finally, the MeOH and EtOH extracts from Valparaíso plants reduced the diet consumption of the psilid D. citri (p < 0.05). The results showed that P. maculosa is a good source of flavonoids with some antioxidant capacities and has potential interest as botanical eco-friendly alternative with deterrent activity.
AB - Persicaria maculosa (Polygonaceae) (known as lady's thumb) is an annual morphologically variable weed that is widely distributed in Chile. The purpose of this study was to investigate the antifeedant potential of methanolic (MeOH), ethanolic (EtOH), and dichloromethane (DCM) extracts from the aerial parts of this plant collected in the Valparaíso and Curicó provinces (Chile) and relate this activity to the antioxidant capacity and the presence of phenolic compounds in the extracts. A phenolic profile based on HPLC-ESI-MS/MS allowed the identification of 26 phenolic compounds, most of them glycosyl derivatives of isorhamnetin, quercetin, and kaempferol. In addition, the total phenolic content (TP), total flavonoids (TF), and antioxidant activity measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH), superoxide anion scavenging (O2-), ferric-reducing antioxidant power (FRAP), and cupric-reducing antioxidant capacity (CUPRAC) of the extracts are reported. The antifeedant potentials of the plant extracts were tested against Epilachna paenulata, Pseudaletia adultera, Macrosiphum euphorbiae, and Diaphorina citri insects for the first time. The activity against the aphid M. euphorbiae was significant for the DCM extracts of plants from Valparaíso and Curicó (settling % = 23% ± 4% and 23% ± 5%, respectively). The antifeedant activities against the beetle E. paenulata and the lepidoptera P. adultera were significant for Valparaíso extracts, especially when tested against E. Paenulata (IFP = 1.0 ± 0.0). Finally, the MeOH and EtOH extracts from Valparaíso plants reduced the diet consumption of the psilid D. citri (p < 0.05). The results showed that P. maculosa is a good source of flavonoids with some antioxidant capacities and has potential interest as botanical eco-friendly alternative with deterrent activity.
KW - Antifeedant activity
KW - Antioxidant
KW - Flavonoids
KW - HPLC-ESI-MS/MS
KW - Polygonaceae
UR - http://www.scopus.com/inward/record.url?scp=85087700983&partnerID=8YFLogxK
U2 - 10.3390/molecules25133054
DO - 10.3390/molecules25133054
M3 - Article
C2 - 32635342
AN - SCOPUS:85087700983
SN - 1420-3049
VL - 25
JO - Molecules
JF - Molecules
IS - 13
M1 - 3054
ER -