Fig. 4From: Protocol: a medium-throughput method for determination of cellulose content from single stem pieces of Arabidopsis thaliana Effect of swelling time on sample colour. 13 tubes containing increasing amounts of cell wall derived glucose are shown. Acetic nitric extracted stem pieces were swelled in 67 % sulphuric acid and left on the bench. Photographs were taken 6 h, 1 day and 6 days after adding sulphuric acid. Normally, we carry out the anthrone assays within 8 h. The error bars are standard error of mean (SEM)Back to article page