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Morphological and physiological leaf traits were studied on control and defoliated potted Leandra lacunosa young plants. After defoliation, remaining bottom leaves showed no significant change in net photosynthesis and stomatal conductance values with time, but the leaf transpiration rate was higher. The production of the new leaves was greater after defoliation in top defoliated plants. Bottom defoliated plants increased stem extension rates and net photosynthesis transitorily. Two months after defoliation, control and defoliated plants did not differ in stem length and root dry mass values. In spite of smaller area and photosynthetic capacity, remaining bottom leaves were able to compensate top leaves elimination. The effectiveness of this compensatory response, however, depended on the ability of new leaves to escape from herbivores. Características morfológicas e fisiológicas foliares foram estudadas em indivíduos jovens envasados de Leandra lacunosa que sofreram desfolhamento e em indivíduos controle. Após o desfolhamento, as folhas remanescentes da parte inferior não apresentaram mudanças significativas dos valores de fotossíntese e condutância estomática. Entretanto, a taxa de transpiração foliar foi maior quando comparada com plantas desfolhadas em porções inferiores. A rebrota de folhas foi maior após o desfolhamento da parte superior. Nas plantas desfolhadas em porções inferiores, ocorreu, momentaneamente, aumento da taxa fotossintética e da extensão do caule. Após dois meses de desfolhamento as plantas controle e desfolhadas não diferiram quanto aos valores do comprimento do caule e massa seca da raiz. Portanto, apesar da menor área foliar e menor capacidade fotossintética, as folhas na parte inferior foram capazes de compensar a eliminação das folhas superiores. A efetividade desta resposta compensatória, no entanto, dependerá da habilidade das novas folhas emitidas escaparem do ataque dos herbívoros

Gas exchange and plant growth after defoliation on Leandra lacunosa, a cerrado woody species with continuous leaf production