Literature DB >> 17741704

Evidence for a pollination-drop mechanism in paleozoic pteridosperms.

G W Rothwell.   

Abstract

A noncellular substance containing pollen and spores has been discovered protruding from the micropyle of a seed fern ovule of Middle Pennsylvanian age. This provides direct evidence that pollination-drop mechanisms comparable to those of many extant gymnosperms characterize some Paleozoic pteridosperms.

Year:  1977        PMID： 17741704     DOI： 10.1126/science.198.4323.1251

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


  5 in total

Review 1.  Angiosperm ovules: diversity, development, evolution.

Authors:  Peter K Endress
Journal:  Ann Bot       Date:  2011-05-23       Impact factor: 4.357

2.  The behavior of pollination drop secretion in Ginkgo biloba L.

Authors:  Biao Jin; Xiaoxue Jiang; Di Wang; Lei Zhang; Yinglang Wan; Li Wang
Journal:  Plant Signal Behav       Date:  2012-08-17

3.  Pollination drop in Juniperus communis: response to deposited material.

Authors:  Serena Mugnaini; Massimo Nepi; Massimo Guarnieri; Beti Piotto; Ettore Pacini
Journal:  Ann Bot       Date:  2007-10-17       Impact factor: 4.357

Review 4.  Nectar and pollination drops: how different are they?

Authors:  Massimo Nepi; Patrick von Aderkas; Rebecca Wagner; Serena Mugnaini; Andrea Coulter; Ettore Pacini
Journal:  Ann Bot       Date:  2009-05-28       Impact factor: 4.357

5.  Phylogenetic and functional signals in gymnosperm ovular secretions.

Authors:  Massimo Nepi; Stefan Little; Massimo Guarnieri; Daniele Nocentini; Natalie Prior; Julia Gill; P Barry Tomlinson; Stefanie M Ickert-Bond; Cary Pirone; Ettore Pacini; Patrick von Aderkas
Journal:  Ann Bot       Date:  2017-11-28       Impact factor: 4.357
  5 in total

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