Anatomical and morphological characteristics of Trichocereus candicans (Cactaceae) seedlings

作者：Cenizo Viviana J^*; Mazzola Monica B; Corro Molas Barbara M; Kin Alicia G

来源：Boletin de la Sociedad Argentina de Botanica, 2013, 48(3-4): 443-451.

• Trichocereus candicans
• morphology
• anatomy
• seedling
• cacti

The aim of this study was to examine the morpho-anatomical characteristics of Trichocereus candicans (Gillies ex Salm-Dyck) Britton & Rose seedlings, a columnar cacti species widely distributed in arid and semiarid regions of Argentina. The most significant changes in seedling morphology can be observed within the first 30 days from germination. Primary root is characterized by abundant radical hairs and a definite-growth pattern. Epidermis is uniseriate with wavy cells, parallelocytic stomata and mineral inclusions (druses). Xylem is composed by wide-band tracheids, with either helical or annular thickenings. Abnormal seedlings with three cotyledons were observed. This study provides basic knowledge of the species that may be useful for further taxonomic and ecological studies.

• 出版日期2013-12