Figure S3.
Atl RNAi phenotype. (A) SEM views of maxillary palp of y w (control) and neur > atl RNAi flies. (B) Count of olf and mech bristles. N of palp = 18 (WT), 16 (atl RNAi), and is shown as mean ± SD. No formal statistical test was applied because the data represent descriptive counts. (C) Enlarged views of olf and mech bristles. Note that neur-Gal4 used in this experiment is active in both bristles. (D) FIB-SEM view of plasma membrane trace of atl RNAi olf hair cell #2. (E) Longitudinal TEM section of atl RNAi olf hair cells. Note straightened envelopes. (F) TEM view of condensed ER in the basal region of olf hair cell. Enlargement shows a multi-membrane “whorl” phenotype typical of stressed ER. Scale Bar: 20 µm (A), 10 µm (C), 1 µm (D), 200 nm (D inner side, approx.), 500 nm (E), 2 µm (F), and 200 nm (F enlarged).

Atl RNAi phenotype. (A) SEM views of maxillary palp of y w (control) and neur > atl RNAi flies. (B) Count of olf and mech bristles. N of palp = 18 (WT), 16 (atl RNAi), and is shown as mean ± SD. No formal statistical test was applied because the data represent descriptive counts. (C) Enlarged views of olf and mech bristles. Note that neur-Gal4 used in this experiment is active in both bristles. (D) FIB-SEM view of plasma membrane trace of atl RNAi olf hair cell #2. (E) Longitudinal TEM section of atl RNAi olf hair cells. Note straightened envelopes. (F) TEM view of condensed ER in the basal region of olf hair cell. Enlargement shows a multi-membrane “whorl” phenotype typical of stressed ER. Scale Bar: 20 µm (A), 10 µm (C), 1 µm (D), 200 nm (D inner side, approx.), 500 nm (E), 2 µm (F), and 200 nm (F enlarged).

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