Jagiellonian University Repository

Floral ultrastructure of two Brazilian aquatic-epiphytic bladderworts : Utricularia cornigera Studnička and U. nelumbifolia Gardner (Lentibulariaceae)

Floral ultrastructure of two Brazilian aquatic-epiphytic ...

Show full item record

dc.contributor.author Płachno, Bartosz [SAP11019179] pl
dc.contributor.author Stpiczyńska, Małgorzata pl
dc.contributor.author Davies, Kevin L. pl
dc.contributor.author Świątek, Piotr pl
dc.contributor.author Oliveira de Miranda, Vitor Fernandes pl
dc.date.accessioned 2017-05-08T09:51:58Z
dc.date.available 2017-05-08T09:51:58Z
dc.date.issued 2017 pl
dc.identifier.issn 0033-183X pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/40090
dc.language eng pl
dc.rights Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa *
dc.rights.uri http://creativecommons.org/licenses/by/4.0/pl/legalcode *
dc.title Floral ultrastructure of two Brazilian aquatic-epiphytic bladderworts : Utricularia cornigera Studnička and U. nelumbifolia Gardner (Lentibulariaceae) pl
dc.type JournalArticle pl
dc.description.physical 353-366 pl
dc.description.additional Bibliogr. s. 365-366 pl
dc.abstract.en Utricularia cornigera and Utricularia nelumbifolia are giant, aquatic-epiphytic species of carnivorous bladderwort from southeastern Brazil that grow in the central ‘urns’ of bromeliads. Both species have large, colourful flowers. The main aim of our study is to ascertain whether the prominent floral palate of U. cornigera and U. nelumbifolia functions as an unguentarius-i.e. an organ that bears osmophores. Floral tissues of both species were investigated using light microscopy, scanning electron microscopy, transmission electron microscopy and histochemistry. Floral palates of U. cornigera and U. nelumbifolia provide clear visual signals for pollinating insects. In both species, the palate possesses diverse micro-morphology, comprising unicellular, conical to villiform papillae and multicellular, uniseriate, glandular trichomes that frequently display terminal branching. The most characteristic ultrastructural feature of these papillae was the presence of relatively large, polymorphic plastids (chromoplasts) containing many plastoglobuli. Similar plastids are known to occur in the fragrance-producing (osmophores) and oil-producing (elaiophores) tissues of several orchid species. Thus, these palate papillae may play a key role in providing the olfactory stimulus for the attraction of insect pollinators. Nectariferous trichomes were observed in the floral spurs of both species, and in U. nelumbifolia, free nectar was also recorded. The location, micro-morphology, anatomy and ultrastructure of the floral palate of the two species investigated may thus indicate that the palate functions as an unguentarius. Furthermore, the flowers of these taxa, like those of U. reniformis, have features consistent with bee pollination. pl
dc.subject.en bladderwort pl
dc.subject.en carnivorous plant pl
dc.subject.en floral micro-morphology pl
dc.subject.en Lentibulariaceae pl
dc.subject.en osmophore pl
dc.subject.en palate pl
dc.subject.en pollination pl
dc.subject.en sect. Iperua pl
dc.subject.en ultrastructure pl
dc.description.volume 254 pl
dc.description.number 1 pl
dc.identifier.doi 10.1007/s00709-016-0956-0 pl
dc.identifier.eissn 1615-6102 pl
dc.title.journal Protoplasma pl
dc.language.container eng pl
dc.affiliation Wydział Biologii i Nauk o Ziemi : Instytut Botaniki pl
dc.subtype Article pl
dc.rights.original CC-BY; inne; ostateczna wersja wydawcy; w momencie opublikowania; 0; pl
dc.identifier.project ROD UJ / P pl
.pointsMNiSW [2017 A]: 30


Files in this item

This item appears in the following Collection(s)

Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa