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Understanding the origin of structural colors in Margaritaria nobilis fruit: A molecular dynamics simulation study

Project description

Molecular dynamics simulations probe mechanisms of structural colour in plants

Both chemical and structural colour exist in nature. Chemical colour is based on pigments, molecules that absorb certain wavelengths. Structural colour is based on microstructures on an object’s surface that reflect certain wavelengths, such as on the surface of a soap bubble or an oil slick. Structural colouration in many plant species occurs via the arrangement of cellulose microfibrils into helicoidal architectures within the cell wall. How these form is poorly understood. With the support of the Marie Skłodowska-Curie Actions programme, the NatColor-MD project aims to employ molecular dynamics simulations and experiments to investigate the role of hemicelluloses in the helicoidal architecture of cellulose nanofibrils and their impact on structural colour.

Objective

Structural coloration in plants, achieved through the arrangement of cellulose microfibrils into helicoidal architectures within the cell wall, is a widespread strategy observed in various plant species, including ferns, monocots, and eudicots. Despite its prevalence, the underlying mechanisms responsible for these hierarchical structures in plant cell walls remain poorly understood. To address this knowledge gap, this proposal focuses on unraveling the intricate interactions between cellulose and hemicellulStructural coloration in plants, achieved through the arrangement of cellulose microfibrils into helicoidal architectures within the cell wall, is a widespread strategy observed in various plant species, including ferns, monocots, and eudicots. Despite its prevalence, the underlying mechanisms responsible for these hierarchical structures in plant cell walls remain poorly understood. To address this knowledge gap, this proposal focuses on unraveling the intricate interactions between cellulose and hemicelluloses, the key constituents of plant cell walls, using molecular dynamics (MD) simulations. The primary objective of this research is to investigate how the chemical composition of hemicelluloses influences the formation of helicoidal structures in cellulose nanofibrils within plant cell walls and, subsequently, the resulting structural coloration. Combining MD simulation results with experimental data will provide a comprehensive understanding of the impact of hemicelluloses on the helicoidal architecture of cellulose nanofibrils. Beyond its immediate scope, this study offers insights into the biosynthesis of cellulose and hemicelluloses in plant cell walls, shedding light on fundamental processes in plant biology. By elucidating the molecular dynamics underlying these interactions, this research contributes to our broader understanding of structural coloration strategies in the plant kingdom and offers potential applications in bio-inspired materials science.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2023-PF-01

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Coordinator

MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV
Net EU contribution
€ 173 847,36
Address
HOFGARTENSTRASSE 8
80539 MUNCHEN
Germany
Region
Berlin Berlin Berlin
Activity type
Research Organisations
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Total cost
No data