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Table 1 Comparative image analysis with Image J of hyphal morphologies from T. reeseirac1 strains compared to reference strain K1 during growth on lactose for 27 h, mean values and standard deviation are given

From: Deletion of the small GTPase rac1 in Trichoderma reesei provokes hyperbranching and impacts growth and cellulase production

  K1 Δrac1
Mycelium length (µm) 650.4 ± 189.5 467.3 ± 208.9
Central hyphal length (µm) 498.8 ± 128.0 214.4 ± 80.3
Average branch length (µm) 56.0 ± 28.4 70.7 ± 36.5
Number of hyphal apices 4.1 ± 1.3 5.4 ± 2.0
Diameter (µm) 4.3 ± 1.5 6.4 ± 0.4
  1. n = 25 per strain, samples of three different biological replicates were drawn from liquid cultures after 27 h, all values shown were tested with Student’s-t-test p < 0.05 and were all significantly different for K1 and ∆rac1 strains