Does ethylene treatment mimic the effects of pollination on floral lifespan and attractiveness?
| Autor: | W.G. van Doorn |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2002 |
| Předmět: |
Attractiveness
Petal colour Ethylene Pollination Apoptosis Plant Science Instituut voor Agrotechnologisch Onderzoek Biology medicine.disease_cause Flower closure chemistry.chemical_compound Magnoliopsida Abscission Plant Growth Regulators Pollinator Pollen Botany medicine Petal abscission Plant Physiological Phenomena Plant Stems Pigmentation Petal withering Reproduction fungi food and beverages Original Articles Darkness Ethylenes chemistry Petal wilting Agrotechnological Research Institute Flower longevity Ethylene sensitivity Petal Perianth Petal senescence |
| Zdroj: | Annals of Botany, 89(4), 375-383 Annals of Botany 89 (2002) 4 |
| ISSN: | 0305-7364 |
| DOI: | 10.1093/aob/mcf053 |
| Popis: | In some species pollination may result in rapid changes in perianth colour and form (petal senescence and abscission, flower closure), rendering the flowers less attractive to pollinators. It has been suggested that this effect is mediated by ethylene. Flowers from about 200 species and 50 families were exposed to ethylene (3 ppm for 24 h at 20 degrees C). The effects on petal senescence and abscission have been described previously. Flower closure and perianth colour changes were generally ethylene-sensitive, but responses showed no consistency within families. Several flowers known to respond to pollination by rapid cessation of attractiveness were also exposed to ethylene: this produced the same effect as pollination, both on flower colour and form. Species that respond to pollination by changing flower form or colour were found exclusively in families in which the species are generally ethylene-sensitive (with regard to changes in perianth form and colour). However, several families are generally ethylene-sensitive but contain no species reported to respond to pollination. |
| Databáze: | OpenAIRE |
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