Montenegro Gloria, Jordan Miguel, Aljaro M Ester
Laboratorio de Botánica, Institute de Ciencias Biológicas Universidad Católica de Chile, Casilla 114-D, Santiago, Chile.
Oecologia. 1980 Jan;45(3):346-349. doi: 10.1007/BF00540203.
Lithraea caustica (Mol.) H. et Arn. and Colliguaya odorifera Mol. are two sclerophyllous shrubs of the scrub vegetation in Central Chile. These two species commonly grow in close association on equator-facing slopes. Leaves of L. caustica are severely predated upon by phytophagous insects while those of C. odorifera are rarely attacked. Leaf growth dynamics, leaf loss, and leaf predation by insects were correlated through the year with leaf phenolic compounds. Leaf structural properties (cuticle thickness, density, sclerenchymatic fibers, leaf thickness) were similar between the two species, while leaf phenol content differed significantly. The higher phenol content in C. odorifera may influence leaf palatability, and thus account for the observed lower leaf area loss in that species due to insect damage.
智利岩漆(Lithraea caustica (Mol.) H. et Arn.)和香胶柯利桂(Colliguaya odorifera Mol.)是智利中部灌丛植被中的两种硬叶灌木。这两个物种通常在朝赤道的斜坡上紧密共生。智利岩漆的叶子受到植食性昆虫的严重捕食,而香胶柯利桂的叶子很少受到攻击。一年中,叶片生长动态、叶片损失和昆虫对叶片的捕食与叶片酚类化合物相关。两个物种的叶片结构特性(角质层厚度、密度、厚壁纤维、叶片厚度)相似,但叶片酚含量差异显著。香胶柯利桂中较高的酚含量可能会影响叶片适口性,从而解释了该物种因昆虫损害而观察到的较低叶面积损失。