Figure 2: PT growth observations of ptb1.
From: Natural variation in PTB1 regulates rice seed setting rate by controlling pollen tube growth
(a) PT growth in the WT, 5 min AP. (b) PT growth in ptb1, 5 min AP. (c) PT growth in the WT, 10 min AP. (d) PT growth in ptb1, 10 min AP. (e) PT growth in the WT, 20 min AP. (f) PT growth in ptb1, 20 min AP. (g) PT growth in the WT, 30 min AP. (h) PT growth in ptb1, 30 min AP. (i) PT growth in the WT, 45 min AP. (j) PT growth in ptb1, 45 min AP. (k) PT growth in the WT, 60 min AP. (l) PT growth in ptb1, 60 min AP. (m) PT growth in the WT, 120 min AP. (n) PT growth in ptb1, 120 min AP. (o) PT growth in ptb1, 120 min AP. (p) A broken pollen tip. (q) A diffused pollen tip. (r) A distorted and branched pollen tip. (s) An agglomerated pollen tip. (t) A normal pollen tip in the WT. Callose deposition on the surface of the ovule of ptb1 (n), which is not present in the WT (k,m). The region boxed with a white line is magnified in another window in the same panel. An arrow indicates the germinated PT (a–d), the PT tip (e–m,o,t) or the noted abnormalities (n,p–s). More than 30 samples for each time-point were collected and observed. Scale bars, 50 μm in (a,b,p–t); 300 μm in (c–o).
