Physiological role of phenolic biostimulants isolated from brown seaweed Ecklonia maxima on plant growth and development

MAIN CONCLUSION : Eckol, a major phenolic compound isolated from brown seaweed significantly enhanced the bulb size and bioactive compounds in greenhouse-grown Eucomis autumnalis. We investigated the effect of eckol and phloroglucinol (PG) (phenolic compounds) isolated from the brown seaweed, Ecklon...

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Veröffentlicht in:Planta 2015-06, Vol.241 (6), p.1313-1324
Hauptverfasser: Aremu, Adeyemi O, Masondo, Nqobile A, Rengasamy, Kannan R. R, Amoo, Stephen O, Gruz, Jiří, Bíba, Ondřej, Šubrtová, Michaela, Pěnčík, Aleš, Novák, Ondřej, Doležal, Karel, Van Staden, Johannes
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container_issue 6
container_start_page 1313
container_title Planta
container_volume 241
creator Aremu, Adeyemi O
Masondo, Nqobile A
Rengasamy, Kannan R. R
Amoo, Stephen O
Gruz, Jiří
Bíba, Ondřej
Šubrtová, Michaela
Pěnčík, Aleš
Novák, Ondřej
Doležal, Karel
Van Staden, Johannes
description MAIN CONCLUSION : Eckol, a major phenolic compound isolated from brown seaweed significantly enhanced the bulb size and bioactive compounds in greenhouse-grown Eucomis autumnalis. We investigated the effect of eckol and phloroglucinol (PG) (phenolic compounds) isolated from the brown seaweed, Ecklonia maxima (Osbeck) Papenfuss on the growth, phytochemical and auxin content in Eucomis autumnalis (Mill.) Chitt. The model plant is a popular medicinal species with increasing conservation concern. Eckol and PG were tested at 10⁻⁵, 10⁻⁶and 10⁻⁷ M using soil drench applications. After 4 months, growth parameters, phytochemical and auxin content were recorded. When compared to the control, eckol (10⁻⁶ M) significantly improved bulb size, fresh weight and root production while the application of PG (10⁻⁶ M) significantly increased the bulb numbers. However, both compounds had no significant stimulatory effect on aerial organs. Bioactive phytochemicals such as p-hydroxybenzoic and ferulic acids were significantly increased in eckol (10⁻⁵ M) and PG (10⁻⁶ M) treatments, compared to the control. Aerial (1,357 pmol/g DW) and underground (1,474 pmol/g DW) parts of eckol-treated (10⁻⁵ M) plants yielded the highest concentration of indole-3-acetic acid. Overall, eckol and PG elicited a significant influence on the growth and physiological response in E. autumnalis. Considering the medicinal importance of E. autumnalis and the increasing strains on its wild populations, these compounds are potential tools to enhance their cultivation and growth.
doi_str_mv 10.1007/s00425-015-2256-x
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source MEDLINE; Springer Online Journals; JSTOR
subjects Acetic acid
Agriculture
Algae
Bioactive compounds
bioactive properties
Biomass
Biomedical and Life Sciences
bulbs
Chromatography, High Pressure Liquid
Coumaric Acids - analysis
Dioxins - pharmacology
Ecology
Eucomis autumnalis
ferulic acid
Flavonoids - analysis
Forestry
growth and development
indole acetic acid
Indoleacetic Acids - analysis
Life Sciences
Liliaceae - drug effects
Liliaceae - growth & development
Original Article
Phaeophyceae - chemistry
Phaeophycophyta
Phenols
Phenols - chemistry
Phenols - isolation & purification
Phenols - pharmacology
Phloroglucinol - pharmacology
physiological response
Physiology
Phytochemicals
Phytochemicals - analysis
phytopharmaceuticals
Plant Development - drug effects
Plant growth
Plant Sciences
Seaweed - chemistry
soil drenching
title Physiological role of phenolic biostimulants isolated from brown seaweed Ecklonia maxima on plant growth and development
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