Pubblicazione scientifica

Phylogenetic Diversity in the Macromolecular Composition of Microalgae

FILONE TECNOLOGICO	TEMA
produzione e raccolta

RIASSUNTO

The elemental stoichiometry of microalgae reflects their underlying macromolecular composition and influences competitive interactions among species and their role in the food web and biogeochemistry. Here we provide a new estimate of the macromolecular composition of microalgae using a hierarchical Bayesian analysis of data compiled from the literature. The median macromolecular composition of nutrient-sufficient exponentially growing microalgae is 32.2% protein, 17.3% lipid, 15.0% carbohydrate, 17.3% ash, 5.7% RNA, 1.1% chlorophyll-a and 1.0% DNA as percent dry weight. Our analysis identifies significant phylogenetic differences in macromolecular composition undetected by previous studies due to small sample sizes and the large inherent variability in macromolecular pools. The phylogenetic differences in macromolecular composition lead to variations in carbon-to-nitrogen ratios that are consistent with independent observations. These phylogenetic differences in macromolecular and elemental composition reflect adaptations in cellular architecture and biochemistry; specifically in the cell wall, the light harvesting apparatus, and storage pools.

DATA

Data di pubblicazione: 26/05/2016

AUTORI

FINKEL ZOE V
FOLLOWS MICK J
LIEFER JUSTIN D
BROWN CHRIS M
BENNER INA
IRWIN ANDREW J

ENTE DI AFFERENZA

ENVIRONMENTAL SCIENCE PROGRAM MOUNT ALLISON UNIV SACKVILLE NEW BRUNSWICK CANADA
DEPT EARTH ATMOSPHERE & PLANETARY SCIENCES MIT CAMBRIDGE MA USA
DEPT CHEMISTRY & BIOCHEMISTRY MOUNT ALLISON UNIV SACKVILLE NEW BRUNSWICK CANADA
DEPT MATH & COMPUTER SCIENCE MOUNT ALLISON UNIV SACKVILLE NEW BRUNSWICK CANADA
INRA FRANCE

RIVISTA

PLoS ONE, 11(5), e0155977

IMPACT FACTOR

2,870

indietro