Ramdani Messaoud, Lograda Takia, Chalard Pierre, Chalchat Jean Claude, Figueredo Gilles
Laboratory of Natural Resource Valorization, Sciences Faculty, Ferhat Abbas University, 19000 Setif, Algeria.
Nat Prod Commun. 2011 Jan;6(1):87-92.
Essential oils extracted from dried leaves of Cupressus dupreziana A. Camus, an endemic species in the Tassili n'Ajjer (Central Sahara of Algeria), were analyzed by gas chomatography coupled to mass spectrometry (GC-MS). Analyses were carried out on 164 trees of 26 natural populations in order to determine the intra-specific variability. Thirty-two terpenoids were identified, the major ones being alpha-pinene (11.5-44.2), delta3-carene (5.7-31.7) and germacrene-D (15.7-54.1). The terpenoid markers used made it possible to determine the individual patterns of chemotypic variability. This variability confirmed that genetic factors were not responsible for the decrease in the number of this species, the main reason probably being the Tassili n'Ajjer desertification.
对从阿尔及利亚中部撒哈拉地区塔西里-恩阿杰尔的特有物种杜氏柏（Cupressus dupreziana A. Camus）干燥叶片中提取的精油进行了气相色谱-质谱联用（GC-MS）分析。对26个自然种群的164棵树进行了分析，以确定种内变异性。鉴定出32种萜类化合物，主要的有α-蒎烯（11.5 - 44.2）、δ3-蒈烯（5.7 - 31.7）和吉马烯-D（15.7 - 54.1）。所使用的萜类标记物使得确定化学型变异的个体模式成为可能。这种变异性证实遗传因素不是该物种数量减少的原因，主要原因可能是塔西里-恩阿杰尔的沙漠化。
