We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Seaweed-Derived Biostimulant (Kelpak) Influences Endogenous Cytokinins and Bioactive Compounds in Hydroponically Grown Eucomis autumnalis.
- Authors
Aremu, Adeyemi; Plačková, Lenka; Gruz, Jiří; Bíba, Ondřej; Novák, Ondřej; Stirk, Wendy; Doležal, Karel; Staden, Johannes
- Abstract
The effect of a seaweed-derived biostimulant (Kelpak at 1, 2.5 and 5 % dilution; v/v) on the growth, endogenous cytokinin (CK) and phytochemical content in Eucomis autumnalis (Mill.) Chitt. under hydroponic conditions was evaluated. After 4 months, the stimulatory effect of Kelpak treatments was more noticeable in the underground organs than in the aerial organs. Total endogenous CK was also higher in plants treated with Kelpak (c.a. 1000-1200 pmol g DW) compared to control plants (860 pmol g DW). Isoprenoid CKs (which mainly accumulated in the aerial organs) were more dominant than aromatic-type CKs across all the treatments. A total of 11 bioactive chemicals (8 phenolic acids and 3 flavonoids) and eucomic acid known for their diverse biological activities were quantified in the samples. The most abundant compound was p-coumaric acid (6.5 µg g DW) and it was approximately sevenfold higher in 2.5 % Kelpak-treated plants than in the control. It was also noteworthy that syringic acid only occurred in the underground organs of 5 % Kelpak-treated plants. Eucomic acid which is a major bioactive compound in E. autumnalis was significantly enhanced in Kelpak treatments, and the leaves accounted for more than 70 % of the overall content. Thus, Kelpak elicited a significant influence on the growth, endogenous CK and phytochemical content in E. autumnalis. These findings provide additional evidence of the enormous potential of Kelpak as a useful biostimulant with practical applications in various agricultural endeavours.
- Subjects
MARINE algae; CYTOKININS; BIOACTIVE compounds; PLANT growth; PLANT hormones
- Publication
Journal of Plant Growth Regulation, 2016, Vol 35, Issue 1, p151
- ISSN
0721-7595
- Publication type
Article
- DOI
10.1007/s00344-015-9515-8