Variability in Foliar Phenolic Composition of Several Quercus Species in Northern Mexico

Foliar Phenolic Composition of Quercus Species

  • Jorge Armando Arámbula-Salazar Facultad de Ciencias Forestales, Universidad Juárez del Estado de Durango, Río Papaloapan y Blvd. Durango s/n Col. Valle del Sur, Durango, Durango, Mexico, 34120
  • Norma Almaraz-Abarca Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Instituto Politécnico Nacional Unidad Durango (CIIDIR-IPN-Durango), Sigma No. 119, Fraccionamiento 20 de Noviembre II, Durango, Mexico, 34220
  • José Javier Corral-Rivas Instituto de Silvicultura e Industria de la Madera, Universidad Juárez del Estado de Durango, Blvd. del Guadiana # 501 Ciudad Universitaria, Durango, Mexico, 34160
  • Eli Amanda Delgado-Alvarado Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional, Instituto Politécnico Nacional Unidad Durango (CIIDIR-IPN-Durango), Sigma No. 119, Fraccionamiento 20 de Noviembre II, Durango, Mexico, 34220
  • Raúl Díaz-Moreno Instituto de Silvicultura e Industria de la Madera, Universidad Juárez del Estado de Durango, Blvd. del Guadiana # 501 Ciudad Universitaria, Durango, Mexico, 34160
  • Eusebio Montiel-Antuna Facultad de Ciencias Forestales, Universidad Juárez del Estado de Durango, Río Papaloapan y Blvd. Durango s/n Col. Valle del Sur, Durango, Durango, Mexico, 34120
Keywords: Quercus chihuahuensis, Quercus arizonica, Quercus grisea, Quercus undata, Quercus convallata, foliar phenol profiles

Abstract

Quantitative and qualitative composition of the foliar phenolic compounds were investigated in 81 individual specimens of several white oak species (Quercus spp.). The trees were growing in twelve locations in Durango, Mexico. The phenol profiles were determined by HPLC-DAD and a Folin-Ciocateu procedure. The results revealed that: (i) the foliar phenol profiles of all species analysed were complex and formed by 6 to 30 compounds, (ii) the flavonols mostly quercetin glycoside, isorhamnetin glycoside, kaempferol glycoside and phenolic acids were the main identified compounds, (iii) there was a high intra and inter-specific variability in the foliar phenol profiles both at the quantitative and qualitative levels, and (iv) the foliar phenol profiles indicated a slight species-specific tendency for phenols to be accumulated, although this was not clearly distinguished. Significant differences (P < 0.05) in the content and composition of the foliar flavonoids between species were observed due to the large environmental and soil conditions variability between localities.

Published
2015-06-24