Fig. 6 | Scientific Reports

Fig. 6

From: Pollen–pistil interactions in divergent wide crosses lead to spatial and temporal pre-fertilization reproductive barrier in flax (Linum usitatissimum L.)

Fig. 6

Representation of activities taking place in L. usitatissimum during pollen-pistil interaction in wide crosses of L. usitatissimum X L. grandiflorum. (a): Partially elongated/restricted pollen tube growth due to callose deposition on the stigma in Lu X Lg (4 HAP); (b): Swollen pollen tube tip in mid stylar region (4 HAP in Lu X Lg); (c): Swollen pollen tube tip at the attachment region (4 HAP in Lu X Lg); (d, e): Twisted pollen tube growth in the upper and mid stylar region of pistil (4 HAP); (f): Swollen pollen tube tip at attachment region of ovary (4 HAP in Lu X Lg); (g): Inhibited pollen tubes at the attachment region of ovary (4 HAP in Lu X Lg); (h): Appearance of pollen tubes growing in reverse direction while reaching towards ovule (6 HAP); (i): Complex and convoluted pollen tube growth at middle stylar region (6 HAP); (j): Ungerminated pollen grains and terminated pollen tube growth (10 HAP).

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