Effect of nitrate accumulation in the ornamental bromeliadAlcantarea imperialis

Author(s)

de Andrade-Santos, Sabrina Vanessa ^[1] ; Young, Jorge Luiz Marx ^[1] ; Ramiro, Luana Kelly ^[1] ; Suzuki, Rogerio Mamoru ^[1] ; Souza, Silvia Ribeiro ^[1] ; Tamaki, Vivian ^[1]

Affiliation

^[1] Inst Bot, Sao Paulo - Brazil

• Document type: Journal article
• Source: JOURNAL OF PLANT NUTRITION; v. 44, n. 2 AUG 2020.
• Web of Science Citations: 1

Abstract

Alcantarea imperialis(Carriere) Harms is a large bromeliad species with showy inflorescence widely used in landscape projects. When grownin vitrounder different nitrogen (N) concentrations, its normally green leaves show red coloration. Thus, the aim of this study was to evaluate thein vitrogrowth ofA. imperialisplants and identify the anthocyanins present on their leaves. Plants obtained from seeds were cultivatedin vitrofor six months in Murashige and Skoog (MS) medium with varying N concentrations (3.75, 7.5, and 15 mM NO3-) and transferred to the greenhouse where they remained for 12 months. The number of leaves and roots, length of aerial parts and roots, mass of shoot and root parts, photosynthetic pigment contents (chlorophylla,b, and carotenoids), and anthocyanin levels were determined. Duringin vitrocultivation, anthocyanin levels increased with increasing N concentrations. The presence of pelargonidin, cyanidin and delphinidin glycosides inA. imperialisleaves was identified by high-performance liquid chromatography (HPLC). Using NO(3)(-)as N source enhanced plant growth and anthocyanin accumulation inA. imperialis. (AU)

• FAPESP's process: 16/14865-1 - Nitrogen and phytohormones in red color induction in Alcantarea imperialis (Carrière) Harms and Epidendrum denticulatum Barb.Rodr.
• Grantee: Rogério Mamoru Suzuki
• Support Opportunities: Regular Research Grants