Programa de Pós-Graduação em Biologia Vegetal, Universidade Federal de Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul, Brazil.
Programa de Pós-Graduação em Biologia Vegetal, Universidade Estadual de Campinas, Campinas, Sao Paulo, Brazil.
Microsc Res Tech. 2021 Aug;84(8):1685-1695. doi: 10.1002/jemt.23727. Epub 2021 Feb 13.
Croton L. (Euphorbiaceae) is the second largest genus of the Euphorbiaceae s.l. family, which is composed of about 1,200 taxa. Several species are widely used medicinally in various parts of the world to treat cancer, digestive problems, skin diseases, malaria, ulcers, and obesity. The leaves and stems are sold as dehydrated fragments, or in powder form, and used in the preparation of teas and various types of formulations. The aim of this study was to accurately characterize the leaf anatomy of Croton bonplandianus Baill. and Croton gracilipes Baill. and to perform histochemical analysis of laticifers to provide subsidies for botanical certification. To accomplish this, leaf blade and petiole samples were fixed and prepared following standard techniques for scanning electron and light microscopy. Histochemical tests were carried out on sections to detect the compounds present in the secretions. Results showed neutral and acidic lipids, as well as phenolic compounds, in the latex. In addition, leaf anatomical structures of these two species were studied for specific identification of morphological characters and for quality assessment of these medicinal plants.
巴戟天（大戟科）是大戟科（广义）家族中第二大的属，由大约 1200 个分类群组成。世界上许多地方的几种物种都被广泛用于药用，以治疗癌症、消化问题、皮肤病、疟疾、溃疡和肥胖。叶子和茎被以脱水碎片或粉末的形式出售，并用于制备茶和各种类型的制剂。本研究的目的是准确描述巴戟天和细叶巴戟天的叶片解剖结构，并对乳汁管进行组织化学分析，为植物学认证提供依据。为此，采用扫描电子显微镜和光学显微镜的标准技术对叶片和叶柄样本进行固定和制备。对切片进行组织化学测试以检测分泌物中的化合物。结果表明，乳胶中存在中性和酸性脂质以及酚类化合物。此外，还研究了这两个物种的叶片解剖结构，以对形态特征进行特定识别，并对这些药用植物进行质量评估。
