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| Cruz,Bruna P.; Chedier,Luciana M.; Peixoto,Paulo H.P.; Fabri,Rodrigo L.; Pimenta,Daniel S.. |
| This paper compares two medicinal species of Kalanchoe, which are often used interchangeably by the population, regarding the distribution of anthocyanins under the influence of four luminosity levels for 6 months. For the morphoanatomical analysis, the 6th stem node of each plant was sectioned. Usual histochemical tests revealed the presence of anthocyanins by cross sections of the stems, petioles and leaf blades. The petioles and leaf blades were submitted to the extraction with acidified methanol, and the anthocyanins were quantified by spectrophotometric readings. At the macroscopic level, it was noticed for both species a higher presence of anthocyanins in stems and petioles of plants under full sunlight. The microscopy of K. brasiliensis stems... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anthocyanins; Kalanchoe; Luminosity; Vegetal anatomy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000100022 |
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| Baratto,Leopoldo Clemente; Duarte,Márcia do Rocio; Santos,Cid Aimbiré de Moraes. |
| Rauvolfia sellowii Müll. Arg. (Apocynaceae), a Brazilian native tree rich in indole alkaloids, is known as "pau-pra-tudo" and popularly used as hypocholesterolemic, hypoglycemic and antihypertensive. The aim of this work was to study the anatomy of the young stems and stem barks of this medicinal plant, in order to contribute to the identification of the species as a drug. The plant material was fixed and prepared according to standard microtechniques. The young stems have remaining epidermis, but a suberified peridermis is evident. The phellogen is located in the cortical region, forming suber externally. Underneath the phellogen, lies the phelloderm and collenchymatic region. In the cortex, there are numerous laticifers and some fibers. There is an... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rauvolfia sellowii/pharmacognosy; Apocynaceae/pharmacognosy; Medicinal plants; Vegetal anatomy; Internal phloem; Laticiferous ducts; Calcium oxalate crystals. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000300020 |
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