Figure 5From: Evaluation of reproductive barriers contributes to the development of novel interspecific hybrids in the Kalanchoë genus Pollen tube growth and fertilization of Kalanchoë species. (A) Pollen grains of K. pubescens on stigma of K. blossfeldiana ‘Jackie’ 24 h after pollination (a.p.). (B) Branching of pollen tube, K. campanulata x K. blossfeldiana ‘0089A’, 24 h a.p. (C) Stopped in growth pollen tubes of K. blossfeldiana ‘0089A’ in the style of K. pubescens, 24 h a.p. (D) Spiky pollen tubes, K. campanulata x K. blossfeldiana ‘0089A’, 24 h a.p. (E) Swelling tip of pollen; K. gracilipes x K. blossfeldiana ‘Jackie’, 48 h a.p. (F) Pollen tubes of K. pubescens in the ovary of K. blossfeldiana ‘0089A’, 48 h a.p. (G) Pollen tube of K. campanulata penetrating the ovule of K. blossfeldiana ‘0089A’, 48 h a.p. (H) Pollen tube of K. pubescens penetrating the ovule of K. blossfeldiana ‘Jackie’, 48 h a.p. (I) Pollen tube of K. nyikae penetrated the ovule of K. blossfeldiana ‘0089A’, 24 h a.p. Scale bars: 100 μm.Back to article page