Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2067/42483
Titolo: Renewable Sources of Plant Biostimulation: Microalgae as a Sustainable Means to Improve Crop Performance
Autori: Chiaiese, Pasquale
Corrado, Giandomenico
Colla, Giuseppe 
Kyriacou, Marios C
Rouphael, Youssef
Rivista: FRONTIERS IN PLANT SCIENCE 
Data pubblicazione: 2018
Abstract: 
Plant biostimulants (PBs) attract interest in modern agriculture as a tool to enhance crop performance, resilience to environmental stress, and nutrient use efficiency. PBs encompass diverse organic and inorganic substances (humic acids and protein hydrolysates) as well as prokaryotes (e.g., plant growth promoting bacteria) and eukaryotes such as mycorrhiza and macroalgae (seaweed). Microalgae, which comprise eukaryotic and prokaryotic cyanobacteria (blue-green algae), are attracting growing interest from scientists, extension specialists, private industry and plant growers because of their versatile nature: simple unicellular structure, high photosynthetic efficiency, ability for heterotrophic growth, adaptability to domestic and industrial wastewater, amenability to metabolic engineering, and possibility to yield valuable co-products. On the other hand, large-scale biomass production and harvesting still represent a bottleneck for some applications. Although it is long known that microalgae produce several complex macromolecules that are active on higher plants, their targeted applications in crop science is still in its infancy. This paper presents an overview of the main extraction methods from microalgae, their bioactive compounds, and application methods in agriculture. Mechanisms of biostimulation that influence plant performance, physiology, resilience to abiotic stress as well as the plant microbiome are also outlined. Considering current state-of-the-art, perspectives for future research on microalgae-based biostimulants are discussed, ranging from the development of crop-tailored, highly effective products to their application for increasing sustainability in agriculture.
URI: http://hdl.handle.net/2067/42483
ISSN: 1664-462X
DOI: 10.3389/fpls.2018.01782
Diritti: Attribution-NonCommercial-NoDerivs 3.0 United States
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