The following published lines were used:p35S::PILS5-GFP (6 (link)), p35S::GFP-PILS3 (1 ), p35S::PILS6-GFP (2 (link)), pPILS3::PILS3-GFP (1 ), pDR5::GFP (29 (link)), pils2 pils5 (6 (link)), pils2 pils3 pils5 (7 (link)), cher1-4 (30 (link)), pCHER1::CHER1-YFP (9 (link)), p35S::GFP-HDEL (31 (link)), p35S::DER1-mScarlet (8 (link)) (all in Col-0 background). Seeds were stratified at 4 °C for 2 d in the dark. Seedlings were grown vertically on half Murashige and Skoog medium (1/2 MS salts (Duchefa), pH 5.9, 1% sucrose, and 0.8% agar). Plants were grown under long-day (16 h light/8 h dark) or under dark conditions at 20 to 22 °C.