Universidade do Estado de Minas Gerais - Unidade Frutal, Avenida Professor Mário Palmério, 1001, 38200-000 Frutal, MG, Brazil.
Universidade do Sagrado Coração, Rua Irmã Arminda, 10-50, 70134-111 Bauru, SP, Brazil.
An Acad Bras Cienc. 2023 Mar 13;95(1):e20210541. doi: 10.1590/0001-3765202320210541. eCollection 2023.
Forest fragments are susceptible to environmental shifts and this demands high phenotypic plasticity of the species growing in these areas. In this context, the objective of the present work was to study the phenotypic plasticity of copaíba (Copaifera langsdorffii Desf.) based on morphological and anatomical metrics of the leaflets of plants from six forest fragments. The leaflets of C. langsdorffii individuals of the different fragments did not show qualitative differences, nonetheless, they demonstrated quantitative plasticity. Stomatal density (p = 0.017), specific leaf area (p = 0.009), palisade parenchyma (p = 0.008) and relative water content (p = 0.002), indicated a high luminous, water and nutritional influence on the development of leaflets. Based on the dry mass of the leaflets and the thickness of the palisade parenchyma, the principal component analysis explained 57.43% of the differences found between the variables. The data presented here provides evidence of the phenotypic plasticity of C. langsdorffii which, although occurring in similar soils, showed significant quantitative differences in its morphoanatomical characters.
森林片段容易受到环境变化的影响，这要求生长在这些地区的物种具有高度的表型可塑性。在这种情况下，本研究的目的是基于来自六个森林片段的植物叶片的形态和解剖学指标来研究巴西可可树（Copaifera langsdorffii Desf.）的表型可塑性。不同片段的巴西可可树叶片没有表现出定性差异，但表现出定量可塑性。气孔密度（p=0.017）、比叶面积（p=0.009）、栅栏组织（p=0.008）和相对含水量（p=0.002）表明叶片的发育受到高光照、水分和营养的强烈影响。基于叶片的干重和栅栏组织的厚度，主成分分析解释了变量之间差异的 57.43%。这里呈现的数据为巴西可可树的表型可塑性提供了证据，尽管它生长在相似的土壤中，但在其形态解剖学特征上表现出显著的定量差异。
