Figure 5.

TGR‐1551 sieve elements cryofixed shortly after initial penetration of sieve element with the veins treated with either lanthanum saline or standard saline. (A) Vein treated with lanthanum saline; cryofixed 232 s after initial penetration of sieve element. Phloem phase began with 82 s of waveform E1 and sample was cryofixed during E2, 150 s after the transition from E1 to E2. (B) Vein treated with standard saline; cryofixed during waveform E1, 277 s after initial penetration of the sieve element. The aphid was engaged in waveform E1 the entire 277 s. This image is a montage of two images at the same XY coordinates but different focal planes to show the stylet tips and right sieve plate of the penetrated sieve element in one image and the left sieve plate in the other. pro, protein occlusion; sp, sieve plate of penetrated sieve element; ss, stylet shaft; st, stylet tips.