Zotz G, Ziegler H
Julius-von-Sachs-Institut fur Biowissenschaften mit Botanischem Garten der Unversität Würzburg, Lehrstuhl für Botanik II, Mittlerer Dallenbergweg 64, D-97082 Würzburg, Germany.
Institut für Botanik und Mikrobiologie der Technischen Universität München, Lehrstuhl für Botanik, Arcisstr. 21, D-80290 München, Germany.
New Phytol. 1997 Oct;137(2):223-229. doi: 10.1046/j.1469-8137.1997.00800.x.
The occurrence of crassulacean acid metabolism (CAM) among the epiphyte flora of the lowland forest on Barro Colorado Island (BCJ), Panama, was investigated. A total of 116 species was included, i.e. about 2/3 of the known epiphyte taxa. As judged from the carbon isotope ratios and the absence of Kranz anatomy, indications of CAM were found in 29 species of three families, Orchidaceae (20), Bromeliaceae (7), and Cactaceae (2). We estimate that about 25% of the epiphyte flora of BCI are CAM plants. CAM was most prevalent in exposed sites, but even in the understorey two epiphyte species engage in CAM.
对巴拿马巴罗科罗拉多岛（BCI）低地森林附生植物群落中景天酸代谢（CAM）的发生情况进行了调查。共纳入了116个物种，约占已知附生植物类群的2/3。根据碳同位素比率和无花环解剖结构判断，在三个科的29个物种中发现了CAM的迹象，即兰科（20种）、凤梨科（7种）和仙人掌科（2种）。我们估计，BCI附生植物群落中约25%是CAM植物。CAM在暴露的地点最为普遍，但即使在林下也有两种附生植物进行CAM代谢。
