Influence of seasonal variation on the phenology and liriodenine content of Annona lutescens (Annonaceae)
Por:
Castro-Moreno M., Tinoco-Ojangurén C.L., Cruz-Ortega, MD, González-Esquinca A.R.
Publicada:
1 jul 2013
Categoría:
Plant Science
Resumen:
Annona lutescens Saff. (Annonaceae) grows as a native tree in Chiapas,
Mexico in Tropical Dry Forest habitat. Like most Annonaceae, it
biosynthesizes benzylisoquinoline alkaloids, mostly liriodenine. To
determine the influence of seasonal changes in the accumulation of
liriodenine, the monthly variation of liriodenine content in roots,
stems and leaves of mature and young trees was observed. These parts of
young and mature A. lutescens trees were collected monthly over a 1 year
period and the alkaloids were extracted; the liriodenine was quantified
by high-resolution liquid chromatography. The phenological stages of the
species were also assessed (leaf development, flowering and fruiting)
using the Biologische Bundesanstalt, Bundessortenamt und Chemische
Industrie (BBCH) scale. The analysis of both young and mature trees
showed a significant increase in the liriodenine concentration occurs
within roots during the dry season, which coincides with leaf fall. A
significant decrease also occurred at the beginning of the rainy season
(the period of leaf growth); the liriodenine content for the next rainy
season did not reach the levels of the previous dry season. The climatic
variation induced phenological and physiological changes in this
species.
Filiaciones:
Castro-Moreno M.:
Univ Nacl Autonoma Mexico, Mexico City 04360, DF, Mexico
Tinoco-Ojangurén C.L.:
Univ Nacl Autonoma Mexico, Inst Ecol, Unidad Hermosillo 83000, Sonora, Mexico
Cruz-Ortega, MD:
Univ Nacl Autonoma Mexico, Inst Ecol, Mexico City 04360, DF, Mexico
González-Esquinca A.R.:
Laboratorio de Fisiología y Química Vegetal, Facultad de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Libramiento Norte Poniente 1150 Colonia, Lajas Maciel C.P, Tuxtla Gutiérrez, Chiapas, Mexico
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