Seaweed-Based Compounds and Products for Sustainable Protection against Plant Pathogens
Open Access
- 25 January 2021
- journal article
- review article
- Published by MDPI AG in Marine Drugs
- Vol. 19 (2), 59
- https://doi.org/10.3390/md19020059
Abstract
Sustainable agricultural practices increasingly demand novel, environmentally friendly compounds which induce plant immunity against pathogens. Stimulating plant immunity using seaweed extracts is a highly viable strategy, as these formulations contain many bio-elicitors (phyco-elicitors) which can significantly boost natural plant immunity. Certain bioactive elicitors present in a multitude of extracts of seaweeds (both commercially available and bench-scale laboratory formulations) activate pathogen-associated molecular patterns (PAMPs) due to their structural similarity (i.e., analogous structure) with pathogen-derived molecules. This is achieved via the priming and/or elicitation of the defense responses of the induced systemic resistance (ISR) and systemic acquired resistance (SAR) pathways. Knowledge accumulated over the past few decades is reviewed here, aiming to explain why certain seaweed-derived bioactives have such tremendous potential to elicit plant defense responses with considerable economic significance, particularly with increasing biotic stress impacts due to climate change and the concomitant move to sustainable agriculture and away from synthetic chemistry and environmental damage. Various extracts of seaweeds display remarkably different modes of action(s) which can manipulate the plant defense responses when applied. This review focuses on both the similarities and differences amongst the modes of actions of several different seaweed extracts, as well as their individual components. Novel biotechnological approaches for the development of new commercial products for crop protection, in a sustainable manner, are also suggested.Keywords
Funding Information
- Mitacs (IT08347)
This publication has 202 references indexed in Scilit:
- The Antiviral Activities and Mechanisms of Marine Polysaccharides: An OverviewMarine Drugs, 2012
- Seaweed-mediated biosynthesis of silver nanoparticles using Gracilaria corticata for its antifungal activity against Candida spp.Applied Nanoscience, 2012
- Seaweed Polysaccharides and Derived Oligosaccharides Stimulate Defense Responses and Protection Against Pathogens in PlantsMarine Drugs, 2011
- Carrageenans, Sulphated Polysaccharides of Red Seaweeds, Differentially Affect Arabidopsis thaliana Resistance to Trichoplusia ni (Cabbage Looper)PLOS ONE, 2011
- Fusarium graminearum forms mycotoxin producing infection structures on wheatBMC Plant Biology, 2011
- Ulvan, a Sulfated Polysaccharide from Green Algae, Activates Plant Immunity through the Jasmonic Acid Signaling PathwayJournal of Biomedicine and Biotechnology, 2010
- A Renaissance of Elicitors: Perception of Microbe-Associated Molecular Patterns and Danger Signals by Pattern-Recognition ReceptorsAnnual Review of Plant Biology, 2009
- Class III peroxidases in plant defence reactionsJournal of Experimental Botany, 2008
- Bioprotective properties of seaweeds: In vitro evaluation of antioxidant activity and antimicrobial activity against food borne bacteria in relation to polyphenolic contentBMC Complementary and Alternative Medicine, 2008
- DELLAs Control Plant Immune Responses by Modulating the Balance of Jasmonic Acid and Salicylic Acid SignalingCurrent Biology, 2008