Lcc9 was involved in cell growth and cell morphology of C. cinerea in coculture with Gongronella sp. w5 on solid medium. (A) Quantification of the colony area of the C. cinerea wild-type strain and three lcc9 silencing strains under single-species culture or coculture with Gongronella sp. w5. (B) Mycelial growth fronts with short hyphal branches in the interspecific region with Gongronella sp. w5 of the C. cinerea wild-type strain and three lcc9 silencing strains were cultured on microscope slides with SAHX medium with sucrose and observed by light microscopy. (C) Quantification of the numbers of short branches from 15 different randomly chosen views of the mycelia as shown in panel B. The data were analyzed using Student’s t- test (**, P < 0.01; ***, P < 0.001; ****, P < 0.0001). Data show mean ± SD, n = 3. Scale bar, 50 μm.