Skip to main content
Fig. 5 | Biotechnology for Biofuels

Fig. 5

From: Overexpression of vesicle-associated membrane protein PttVAP27-17 as a tool to improve biomass production and the overall saccharification yields in Populus trees

Fig. 5

Overexpression of PttVAP27-17 can increase stem biomass in field-grown trees. Stem height (a), stem diameter (b), wood density (c) at the base of the stem and total stem biomass (d) in field-grown trees of the wild type and four transgenic lines (1–4) during four seasons of growth (a, b) or at the end of the 5-year field trial (c, d). n = 3 for transgenic line 1, n = 5 for transgenic line 2, 3, 4 and 19 for the WT where “n” indicates number of biological replicates. The box plots show the median (horizontal line) with the outer limits at the 25th and 75th percentiles, the 1.5 inter-quartile ranges (whiskers) and the outliers (gray spots). Asterisks indicate significant differences compared to the WT at p ≤ 5% (*), according to Student’s t-test. The volumes of the stems were estimated using the formula: volume = π × radius2 × height/3. Total stem biomass was defined on the basis of the stem volume and density. Percentages indicate increase (+) or decrease (−) for lines overexpressing PttVAP27-17 in comparison to the WT

Back to article page