Theoretical and Applied Genetics

, Volume 101, Issue 5, pp 685–689

Pollen tube behavior in yellow passion fruit following compatible and incompatible crosses

  • M. M. Rêgo
  • E. R. Rêgo
  • C. H. Bruckner
  • E.A.M. Da Silva
  • F. L. Finger
  • K. J. C. Pereira

DOI: 10.1007/s001220051531

Cite this article as:
Rêgo, M., Rêgo, E., Bruckner, C. et al. Theor Appl Genet (2000) 101: 685. doi:10.1007/s001220051531

Abstract 

Pistil squashes were used to examine the growth of Passiflora edulis f. flavicarpa Deg pollen tubes in self-compatible and self-incompatible crosses. Compatible tubes typically showed a uniform layer of callose deposition in the walls and in small plugs spaced at regular intervals within the tube. Two sites of rejection were observed in incompatible crosses: the stigma and on some occasions the style, especially in anomalous crosses. In the style the inhibition of pollen-tube growth occurred in both the upper and middle parts of the transmitting tract. These findings are consistent with the hypothesis that suggests the presence of a gametophytic gene which acts in association with the sporophytic S-gene in P. edulis.

Key words Passifloraceae Pollen-tube growth Self-incompatibility Passiflora edulis f. flavicarpa 

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • M. M. Rêgo
    • 1
  • E. R. Rêgo
  • C. H. Bruckner
    • 2
  • E.A.M. Da Silva
    • 3
  • F. L. Finger
    • 2
  • K. J. C. Pereira
  1. 1.Universidade Federal de Roraima, Campus de Paricarana, 69300.270 – Boa Vista – RR. Brazil e-mail: mailson@alunos.ufv.br Fax: 31-899-2579BR
  2. 2.Universidade Federal de Vicosa, Departmento de Fitotecnia, 36571-000 Viçosa – MG. Brazil e-mail: bruckner@mail.ufv.brBR
  3. 3.Universidade Federal de Vicosa. Departamento de Biologia Vegetal. 36571-000 – Viçosa – MG. BrazilBR

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