Comparative anatomy of leaves of Kalanchoe pinnata and K. crenata in sun and shade conditions, as a support for their identification

Revista Brasileira de Farmacognosia

Moreira, Nattacha S.¹  Instituto Federal de Educação, Ciência e Tecnologia Fluminense, Brazil¹  Universidade Federal do Rio de Janeiro, Brazil¹  Nascimento, Luana Beatriz S.¹  Tavares, Eliana S.¹  Leal-Costa, Marcos Vinicius¹ 

关键词: hydathodes;    leaf buds;    medicinal species;    phenolic idioblasts;   

DOI  :  10.1590/S0102-695X2012005000056

来源: Sociedade Brasileira de Farmacognosia

【 摘 要 】

Kalanchoe pinnata (Lam.) Pers. and K. crenata (Andrews) Haw., Crassulaceae, are popularly used in the treatment of many diseases. Their biological activities, such as anti-leishmaniasis and analgesic, can be useful in phytotherapy. Both species are often misidentified as the other, because of their similar popular uses and names, and the similar external morphology of the leaves. We investigated the existence of anatomical characters that will permit correct identification of the species grown in shade and in sun conditions. We also contribute with new observations on the leaf anatomy of K. pinnata and K. crenata. Fixed (FAA70) leaves were used, and their sections were embedded in Leica historesin. Hydathodes were observed in both species, and for the first time were anatomically described in K. crenata. The species showed anatomical differences in relation to the presence of epidermal idioblasts only in K. crenata, the different pattern of distribution of subepidermal idioblasts, and the presence of leaf buds only in K. pinnata.

【 授权许可】

Unknown