GERMINATION AND GAMETOFITIC MORPHOGENESIS OF PTERIS INERMIS (ROSENST.) DE LA SOTA

Authors

  • María Elena Tanco Facultad de Ciencias Naturales, Universidad Nacional de Salta Av. Bolivia 5150, 4400 Salta, Argentina
  • Olga Gladys Martínez Facultad de Ciencias Naturales, Universidad Nacional de Salta Av. Bolivia 5150, 4400 Salta, Argentina
  • María Luisa Cristina Bonomo Facultad de Ciencias Naturales, Universidad Nacional de Salta Av. Bolivia 5150, 4400 Salta, Argentina

Keywords:

Pteris, germination, prothallial development, growth regulators

Abstract

The prothallial development of the Pteris inermis (Rosenst.) de la Sota is presented, studied by in vitro culture
techniques. The germination of the spores recently collected occurred at the 6th day and at the 27th day those that were
storaged for a year. The pattern of germination is the Vittaria-type. The treatment with growth regulators, Gibberellin and
Benzyladenine (BA), reduces the time of germination, specially with 0.5 ppm/L of Gibberellin. During the phase were
formed ramifications that originate colonies in the adult stage. The prothallial development is the Ceratopteris-type.
There were found antheridiate, archegoniate, bisexual and neutral gametophytes. Archegonia were formed in the abaxial
side of the central cushion or in both sides, adaxial and abaxial. They contained necks formed by 4 rings with 4 cells each.

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Published

2009-06-05

How to Cite

Tanco, M. E. ., Martínez, O. G., & Bonomo, . M. L. C. . (2009). GERMINATION AND GAMETOFITIC MORPHOGENESIS OF PTERIS INERMIS (ROSENST.) DE LA SOTA. Gayana Botánica, 66(1), 10-17. Retrieved from https://revistas.udec.cl/index.php/gayana_botanica/article/view/4145

Issue

Vol. 66 No. 1 (2009)

Section

Artículos
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