Literature DB >> 17836137

Evidence of pollen tubes in paleozoic pteridosperms.

G W Rothwell.   

Abstract

A saccate pollen grain with a branched pollen tube has been discovered within the pollen chamber of a fossil seed-fern ovule of Middle Pennsylvanian age. This suggests that microgametophytes comparable to those of living gymnosperms were produced by some Paleozoic pteridosperms.

Year:  1972        PMID： 17836137     DOI： 10.1126/science.175.4023.772

Source DB:  PubMed          Journal:  Science        ISSN： 0036-8075            Impact factor:   47.728


  4 in total

1.  Zooidogamy in the Late Permian genus Glossopteris.

Authors:  Harufumi Nishida; Kathleen B Pigg; Kensuke Kudo; John F Rigby
Journal:  J Plant Res       Date:  2004-07-16       Impact factor: 2.629

2.  Zoidogamy in fossil gymnosperms: The centenary of a concept, with special reference to prepollen of late Paleozoic conifers.

Authors:  R J Poort; H Visscher; D L Dilcher
Journal:  Proc Natl Acad Sci U S A       Date:  1996-10-15       Impact factor: 11.205

3.  Pollen tube development in two species of Trithuria (Hydatellaceae) with contrasting breeding systems.

Authors:  Mackenzie L Taylor; Joseph H Williams
Journal:  Sex Plant Reprod       Date:  2012-02-25

Review 4.  The Diversity of the Pollen Tube Pathway in Plants: Toward an Increasing Control by the Sporophyte.

Authors:  Jorge Lora; José I Hormaza; María Herrero
Journal:  Front Plant Sci       Date:  2016-02-09       Impact factor: 5.753
  4 in total

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