Biogeographical Patterns and Phenological Changes in Lapiedra martineziiLag. Related to Its Alkaloid Diversity. Issue 7 (12th July 2013)

• Record Type: Journal Article
• Authors: Ríos, Segundo; Berkov, Strahil; Martínez‐Francés, Vanessa; Bastida, Jaume
• Is Part Of: Chemistry & biodiversity. Volume 10:Issue 7(2013:Jul.)
• Page Start: 1220
• Page End: 1238
• Publication Date: 2013-07-12
• Subjects: Biochemistry -- Periodicals; Molecular biology -- Periodicals; Biodiversity -- Periodicals; 572
• DOI: 10.1002/cbdv.201200428
• Languages: English
• ISSNs: 1612-1872

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The aim of this work was to investigate the alkaloid patterns of <italic>Lapiedra martinezii</italic> and their relation to biogeography and phenology focused in a phylogenetic comparison. Plants from 14 populations of <italic>L. martinezii</italic>, covering almost its entire distribution area, were subjected to morphological, ecological, and phytochemical analysis. Experiments for different alkaloid‐type content are proposed as a new tool for analysis of plant distribution. Several plants were transplanted for weekly observation of their phenological changes, and alkaloids from different plant organs were extracted, listed, and compared. The alkaloid pattern of <italic>L. martinezii</italic> comprises 49 compounds of homolycorine, lycorine, tazettine, haemantamine, and narciclasine types. The populations located in the north and south margins of the distribution area displayed alkaloid patterns different from those of the central area. Changes in these patterns during their phenological cycle may be related to a better defence for plant reproduction. <italic>L. martinezii</italic> is an old relict plant, and it has maintained some of the more primitive morphological features and alkaloid profiles of the Mediterranean Amaryllidaceae. The variations in alkaloid content observed could be interpreted in a phylogenetic sense, and those found in their phenological changes, in an adaptive one.</p> </abstract>