New Ecological Role of Seaweed Secondary Metabolites as Autotoxic and Allelopathic

Frontiers in Plant Science
Daniela Bueno SudattiRenato Crespo Pereira

Abstract

Allelopathy and autotoxicity are well-known biological processes in angiosperms but are very little explored or even unknown in seaweeds. In this study, extract and major pure compounds from two distinct populations of the red seaweed Laurencia dendroidea were investigated to evaluate the effect of autotoxicity through auto- and crossed experiments under laboratory conditions, using chlorophyll fluorescence imaging to measure inhibition of photosynthesis (ΦPSII) as a variable response. Individuals of L. dendroidea from Azeda beach were inhibited by their own extract (IC50 = 219 μg/ml) and the major compound elatol (IC50 = 87 μg/ml); both chemicals also inhibited this seaweed species from Forno beach (IC50 = 194 μg/ml for the extract and IC50 = 277 μg/ml for elatol). By contrast, the extract of L. dendroidea from Forno and its major compound obtusol showed no inhibitory effect in individuals of both populations; but obtusol was insoluble to be tested at higher concentrations, which could be active as observed for elatol. The Azeda population displayed higher susceptibility to the Azeda extract and to elatol, manifested on the first day, unlike Forno individuals, in which the effect was only detected on the second day; and inhibi...Continue Reading

References

Nov 14, 1997·Journal of Natural Products·G M König, A D Wright
Mar 19, 2004·Brazilian Journal of Biology = Revista Brasleira De Biologia·R C PereiraY Yoneshigue-Valentin
Nov 18, 2005·Progress in Lipid Research·Florence BouvierBilal Camara
Jan 16, 2010·Biofouling·Wladimir C ParadasGilberto M Amado Filho
Oct 19, 2011·Proceedings of the National Academy of Sciences of the United States of America·Douglas B RasherMark E Hay
Sep 28, 2012·Marine Drugs·Vânia Cristina DesotiSueli de Oliveira Silva
Apr 25, 2013·The Journal of Biological Chemistry·Aparajita BanerjeeThomas D Sharkey
Jul 30, 2014·Natural Product Reports·Melany P PuglisiValerie J Paul
Feb 13, 2015·Marine Drugs·Louisi Souza de OliveiraFabiano L Thompson
Mar 5, 2016·Bioscience, Biotechnology, and Biochemistry·Nobukazu Shitan
May 26, 2016·Chemistry & Biodiversity·Fernanda L S MachadoAngélica R Soares
Jul 6, 2016·Progress in the Chemistry of Organic Natural Products·Maria HarizaniVassilios Roussis
Dec 1, 1987·Ecology·Mark E HayKirk Gustafson
Mar 30, 2018·Journal of Plant Physiology·Hisashi Kato-NoguchiNobuyuki Okuda
Jun 24, 2019·Marine Environmental Research·Jenny FongPeter A Todd

❮ Previous
Next ❯

Citations

Jul 28, 2020·The Journal of Experimental Biology·Melanie K LovassGiulia Ghedini
Sep 28, 2021·Journal of Chemical Ecology·Mauro Cesar Palmeira VilarSandra Maria Feliciano de Oliveira E Azevedo

❮ Previous
Next ❯

Datasets Mentioned

BETA
RFA
38846

Methods Mentioned

BETA
silica
gel column chromatography
nuclear magnetic resonance
Fluorescence
fluorescence imaging

Software Mentioned

Visual
ImageJ

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.