Advertisement

Biotechnology and Ecology of Pollen

Proceedings of the International Conference on the Biotechnology and Ecology of Pollen, 9–11 July, 1985, University of Massachusetts, Amherst, MA, USA

  • David L. Mulcahy
  • Gabriella Bergamini Mulcahy
  • Ercole Ottaviano

Table of contents

  1. Front Matter
    Pages i-xxiii
  2. Gene Expression in Pollen

    1. Front Matter
      Pages 1-1
    2. E. Ottaviano, P. Sidoti, M. Villa
      Pages 21-26
    3. M. Sari Gorla, C. Frova, E. Redaelli
      Pages 27-32
    4. C. Frova, G. Binelli, E. Ottaviano
      Pages 33-38
    5. Joseph P. Mascarenhas, Jeffrey S. Stinson, R. Paul Willing, M. Enrico Pe’
      Pages 39-44
  3. Pollen in Biotechnology

    1. Front Matter
      Pages 45-45
    2. S. J. Peloquin
      Pages 47-52
    3. J. M. J. De Wet, A. E. De Wet, D. E. Brink, A. G. Hepburn, J. A. Woods
      Pages 59-64
    4. I. Negrutiu, E. Heberle-Bors, I. Potrykus
      Pages 65-70
    5. J. C. Sanford, K. A. Skubik
      Pages 71-76
    6. Bruce G. Baldi, Vincent R. Franceschi, Frank A. Loewus
      Pages 77-82
    7. D. E. Rowe, D. L. Stortz, D. S. Gillette
      Pages 101-106
    8. A. P. M. Den Nijs, B. Maisonneuve, N. G. Hogenboom
      Pages 125-130
    9. R. I. Greyson, D. R. Pareddy, V. R. Bommineni, D. B. Walden
      Pages 135-137
    10. N. Pallais, P. Malagamba, N. Fong, R. Garcia, P. Schmiediche
      Pages 153-158
    11. Karen B. Searcy, David L. Mulcahy
      Pages 159-164
  4. Self-Incompatibility and Pollen-Style Interactions

    1. Front Matter
      Pages 165-165
    2. Gabriella Bergamini Mulcahy, David L. Mulcahy
      Pages 173-178
    3. Neelam Sharma, K. R. Shivanna
      Pages 179-184
    4. M. E. Nasrallah, J. B. Nasrallah
      Pages 197-201
    5. P. M. O’Neill, M. B. Singh, R. B. Knox
      Pages 203-208
    6. David L. Mulcahy, Gabriella Bergamini Mulcahy, Douglas Macmillan
      Pages 245-250
    7. G. Coppens D’Eeckenbrugge, M. Ngendahayo, B. P. Louant
      Pages 257-264
  5. Pollen Ultrastructure and Development

    1. Front Matter
      Pages 271-271

About these proceedings

Introduction

In Recognition of the Forgotten Generation D. L. MULCAHyl Pollen was long believed to serve primarily a single function, that of delivering male gametes to the egge A secondary and generally overlooked value of pollen is that it serves to block the transmission of many defective alleles and gene combinations into the next generation. This latter function comes about simply because pollen tubes carrying defective haploid genotypes frequently fail to complete growth through the entire length of the style. However, the beneficial consequences of this pollen selection are diluted by the fact that the same deleterious genotypes are often transmitted through the egg at strictly mendelian frequencies (Khush, 1973). Gene expression in the pollen might thus at least appear to be a phenomenon of trivial consequence. Indeed, Heslop-Harrison (1979) rightly termed the gametophytic portion of the angiosperm life cycle, the "forgotten generation." This neglect, however, came about despite subtle but constant indications that pollen is the site of intense gene activity and selection. For example, Mok and Peloquin (1975) demonstrated that relatively heterozygous diploid pollen shows heterotic characteristics whereas relatively homozygous diploid pOllen does not. This was proof positive that genes are expressed (that is, transcribed and translated) in the pollen. 1 Department of Botany, University of Massachusetts Amherst, MA 01003, USA viii However, the implications for pollen biology of even this recent and well known study were not widely recognized.

Keywords

Activation Arabidopsis thaliana Compositae Embryo Gramineae Regulation Vivo biotechnology development gene transfer influence metabolism physiology temperature

Editors and affiliations

  • David L. Mulcahy
    • 1
  • Gabriella Bergamini Mulcahy
    • 1
  • Ercole Ottaviano
    • 2
  1. 1.Department of BotanyUniversity of MassachusettsAmherstUSA
  2. 2.Department of Genetics and Microbial BiologyUniversity of MilanoMilanoItaly

Bibliographic information