ANATOMICAL, MORPHOLOGICAL, AND PHYSIOLOGICAL CHARACTERISTICS OF SUN AND SHADE LEAVES OF THE OITIZEIRO TREE (MOQUILEA TOMENTOSA BENTH)
DOI:
https://doi.org/10.56238/arev8n6-070Keywords:
Leaf Thickness, Oiti, Phenotypic Plasticity, Degraded Area Recovery, Morphophysiological ResponsesAbstract
The oitizeiro (Moquilea tomentosa), is a native and endemic Brazilian plant species found in the restinga vegetation that is well-adapted to elevated temperatures. It is known for its economic importance, as it is commonly used for landscaping, food and recovery of degraded areas. This study aimed to analyze and compare the anatomical, morphological, and physiological characteristics of sun and shade leaves of oitizeiro trees sampled in the São Luís and Bacurituba cities, Maranhão state, Brazil. The parameters evaluated included chlorophyll indices, leaf length and width, estimated leaf area, and leaf anatomy. Leaf length, width, and estimated area were higher in shade leaves compared to sun leaves. Chlorophyll a, chlorophyll b, and total chlorophyll indices were higher in the shade leaves collected in Bacurituba. For plants collected in São Luís, the chlorophyll a index was higher in shade leaves, and no difference was found in chlorophyll b and total chlorophyll. The differences in leaf size, chlorophyll content, and anatomy found between sun and shade leaves demonstrate that Moquilea tomentosa exhibits a high phenotypic plasticity, which suggests it is highly adaptable to varying light intensities and highlights its potential use in the recovery of degraded areas.
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References
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