A Highly Efficient Xylan-Utilization System in Aspergillus niger An76: A Functional-Proteomics Study.

ABSTRACT: Xylan constituted with β-1,4-D-xylose linked backbone and diverse substituted side-chains is the most abundant hemicellulose component of biomass, which can be completely and rapidly degraded into fermentable sugars by Aspergillus niger. This is of great value for obtaining renewable biofuels and biochemicals. To clarify the underlying mechanisms associated with highly efficient xylan degradation, assimilation, and metabolism by A. niger, we utilized functional proteomics to analyze the secreted proteins, sugar transporters, and intracellular proteins of A. niger An76 grown on xylan-based substrates. Results demonstrated that the complete xylanolytic enzyme system required for xylan degradation and composed of diverse isozymes was secreted in a sequential order. Xylan-

SUBMITTER: Gong W 

PROVIDER: S-EPMC5874446 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature