TY - JOUR
T1 - Profiling of phenolic compounds of somatic and reproductive tissues of agave durangensis gentry (Agavaceae)
AU - Almaraz-Abarca, Norma
AU - Delgado-Alvarado, Elí Amanda
AU - Hernández-Vargas, Vicente
AU - Ortega-Chávez, Margarita
AU - Orea-Lara, Gildardo
AU - de León, Armando Cifuentes Díaz
AU - Ávila-Reyes, José Antonio
AU - Muñiz-Martínez, Raúl
PY - 2009
Y1 - 2009
N2 - Problem statement: In Durango, Mexico, mescal is elaborated from wild plants of Agave durangensis. This species shows a high morphological variability within and among populations, what makes its taxonomic delimitation a hard task. Approach: In this study the pollen and foliar phenolic compositions of Agave durangensis were analyzed by HPLC/DAD with the aim of determining the significance of phenol profiles to delimit this taxon. Results: The foliar phenol compositions were evaluated within and among two populations and between juvenile and adult plants. Agave asperrima Jacobi, Dasylirion sp. and juvenile samples of A. shrevei Gentry subsp. shrevei, A. shrevei Gentry subsp. matapensis Gentry and A. wocomahi Gentry, were also analyzed to stand comparisons with. The results from this study indicated that pollen and foliar tissues of Agave durangneisis were rich in kaempferol glycoside derivatives (13 and 23 different compounds can be present, respectively). Principal coordinates analysis (PCO), based on foliar profiles of adults, indicated the presence of several chemotypes within the Type locality of Agave durangensis and revealed chemical differences between the both analyzed populations. Conclusion/Recommendations: Chemical and morphological differences and biogeographical evidence suggest the recognition of two different taxonomic entities in this morphological variable group.
AB - Problem statement: In Durango, Mexico, mescal is elaborated from wild plants of Agave durangensis. This species shows a high morphological variability within and among populations, what makes its taxonomic delimitation a hard task. Approach: In this study the pollen and foliar phenolic compositions of Agave durangensis were analyzed by HPLC/DAD with the aim of determining the significance of phenol profiles to delimit this taxon. Results: The foliar phenol compositions were evaluated within and among two populations and between juvenile and adult plants. Agave asperrima Jacobi, Dasylirion sp. and juvenile samples of A. shrevei Gentry subsp. shrevei, A. shrevei Gentry subsp. matapensis Gentry and A. wocomahi Gentry, were also analyzed to stand comparisons with. The results from this study indicated that pollen and foliar tissues of Agave durangneisis were rich in kaempferol glycoside derivatives (13 and 23 different compounds can be present, respectively). Principal coordinates analysis (PCO), based on foliar profiles of adults, indicated the presence of several chemotypes within the Type locality of Agave durangensis and revealed chemical differences between the both analyzed populations. Conclusion/Recommendations: Chemical and morphological differences and biogeographical evidence suggest the recognition of two different taxonomic entities in this morphological variable group.
KW - Agave phenolic variability
KW - Foliar flavonoid profiles
KW - Pollen flavonoids
UR - http://www.scopus.com/inward/record.url?scp=79952157434&partnerID=8YFLogxK
U2 - 10.3844/ajassp.2009.1076.1085
DO - 10.3844/ajassp.2009.1076.1085
M3 - Artículo
SN - 1546-9239
VL - 6
SP - 1076
EP - 1085
JO - American Journal of Applied Sciences
JF - American Journal of Applied Sciences
IS - 6
ER -