Skip navigation
Skip navigation

High self-pollen transfer and low fruit set in buzz-pollinated Dianella revoluta (Phormiaceae)

Duncan, David; Nicotra, Adrienne; Cunningham, Saul

Description

We used pollinator observation, flower manipulation, controlled pollination and pollen-tube analysis to better understand the reproductive ecology of Dianella revoluta R.Br., a common species known to have depressed fruit set at fragmented sites. This buzz-pollinated species was found to receive large quantities of self-pollen even during a single pollinator visit, but is only partially self-compatible. This may be the first direct demonstration of pollinator-facilitated, autogamous self-pollen...[Show more]

dc.contributor.authorDuncan, David
dc.contributor.authorNicotra, Adrienne
dc.contributor.authorCunningham, Saul
dc.date.accessioned2015-12-13T22:32:32Z
dc.date.available2015-12-13T22:32:32Z
dc.identifier.issn0067-1924
dc.identifier.urihttp://hdl.handle.net/1885/75609
dc.description.abstractWe used pollinator observation, flower manipulation, controlled pollination and pollen-tube analysis to better understand the reproductive ecology of Dianella revoluta R.Br., a common species known to have depressed fruit set at fragmented sites. This buzz-pollinated species was found to receive large quantities of self-pollen even during a single pollinator visit, but is only partially self-compatible. This may be the first direct demonstration of pollinator-facilitated, autogamous self-pollen transfer accounting for a significant proportion of stigmatic pollen load. Frequent high self-pollen transfer may account for the observed low rate of fruit development in open-pollinated flowers. Self-pollen tubes reached the base of the style in comparable numbers and at the same rate as outcross pollen tubes, with no sign of pollen-tube competition favouring outcross pollen. Barriers to greater self-fertility occur late, probably through early abortion of selfed ovules. We also investigated what impact overlapping distribution with D. longifolia may have on D. revoluta pollination and reproduction. Although these species shared pollinators, they differed in terms of frequency of visits. There was also separation of floral phenology within the course of a day.
dc.publisherCSIRO Publishing
dc.sourceAustralian Journal of Botany
dc.subjectKeywords: autogamy; fruit set; phenology; pollination; reproduction; Animalia; Dianella; Hemerocallidaceae
dc.titleHigh self-pollen transfer and low fruit set in buzz-pollinated Dianella revoluta (Phormiaceae)
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume52
dc.date.issued2004
local.identifier.absfor060208 - Terrestrial Ecology
local.identifier.ariespublicationMigratedxPub4699
local.type.statusPublished Version
local.contributor.affiliationDuncan, David, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationNicotra, Adrienne, College of Medicine, Biology and Environment, ANU
local.contributor.affiliationCunningham, Saul, CSIRO Entomology
local.bibliographicCitation.startpage185
local.bibliographicCitation.lastpage193
local.identifier.doi10.1071/BT03139
dc.date.updated2015-12-11T09:08:19Z
local.identifier.scopusID2-s2.0-2542417374
CollectionsANU Research Publications

Download

There are no files associated with this item.


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  17 November 2022/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator