Fig. 7From: Lignin bioconversion based on genome mining for ligninolytic genes in Erwinia billingiae QL-Z3Three enzymes degrade alkali lignin in different combinations. a PCA scores with positive ion modes, b PCA scores with negative ion modes and c differential metabolite statistics with positive ion modes, d differential metabolite statistics with negative ion modes. Each experimental group was conducted in sextuplicateBack to article page