Radiation intensity influencing morphophysiological characteristics in leaves of Tetradenia riparia (Hochst.) Codd

• Autor(a) principal: Araújo, Laís Lima Nabuco
• Data de Publicação: 2019
• Outros Autores: de Melo, Hyrandir Cabral, Castiglioni, Gabriel Luis, Gonçalves, Letícia Almeida
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Iheringia. Série Botânica
• DOI: 10.21826/2446-82312019v74e2019001
• Texto Completo: https://isb.emnuvens.com.br/iheringia/article/view/336
• topic: light; medicinal plant; photomorphogenesis; fotomorfogênese; luz; planta medicinal; Anatomia e Fisiologia de Plantas; Cultivo de Planta Medicinal

This work aimed to study the role of light on Tetradenia riparia development. Tetradenia riparia (Hochst.) Codd.’s morphophysiological characteristics were evaluated when cultivated under 30%, 50% and 80% shading levels and at full sunlight. The leaf thickness was higher in plants grown under full sunlight. The leaf area was larger in plants cultivated under 80% of shade. Chlorophyll “a” and total, carotenoids, proteins and nitrogen were higher in plants cultivated under 50% and 80% of shade. There were no differences for stomata density and trichomes in the abaxial epidermis, content of chlorophyll “b,” chlorophyll a/b ratio and ash content among plants of different treatments. The stomata density of the adaxial epidermis was higher in plants cultivated under 30% of shade. The lipid content was lower in plants grown under 80% of shade. T. riparia has high morphophysiological plasticity to different radiation intensities.