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. 2021 Feb 9;9:619596. doi: 10.3389/fcell.2021.619596

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Copyright © 2021 Kunz, Lehmann and Pohl.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Coupling of AM pore movement to AM dendrite elongation. (A) Maximum intensity projections of stacks of confocal images from time lapse recordings of ventral/left side (top) and head-on (bottom) view of wt embryos from lima-bean to 1.5-old stage. AM cell bodies and dendrites are marked in magenta, and pores and apical lumen of pharynx and intestine are marked in green. Dashed lines indicate the anterior epidermal edge. White arrowheads mark the AM pores. See also Supplementary Video 6. (B) Depictions as in A; ventral/left side view of a representative embryo before and after UV laser-ablation of one of the two AM pores. The ablated area is marked by a yellow circle, the non-ablated AM pore is marked by a white arrowhead, and the ablated AM pore is marked by a yellow arrowhead. See also Supplementary Video 7. (C) Quantifications of the distance of the AM pore to the mouth (left), AM dendrite elongation (middle) and position of the AM neuron cell bodies relative to the mouth (right) (n = 5). (D) Quantifications of AM pore movement (left) and AM dendrite length in embryos where one AM pore was UV laser ablated, and the pore or dendrite on the other side was measured as internal control (n = 5; ±SD; two-way ANOVA P; ** ≥ 0.01; *** ≥ 0.001).