Actin cytoskeleton in the extra-ovular embryo sac of Utricularia nelumbifolia (Lentibulariaceae)

2012
journal article
article
8
dc.abstract.enThe actin cytoskeleton in the mature female gametophyte of angiosperms has been examined in only a few dicot and monocot species. The main purposes of this study were to identify how the actin cytoskeleton is arranged in the mature extra-ovular embryo sac in Utricularia nelumbifolia (Lentibulariaceae). We found that the extra-ovular part of the central cell has a well-developed actin cytoskeleton: actin microfilaments formed of long strands which run longitudinally or transversally to the long axis of the embryo sac. The exerted part of the central cell, which is exposed to the environment of the ovary chamber, is highly vacuolated and in the thin peripheral cytoplasm possesses a complicated network of actin microfilaments. The epidermal cells of the placenta that are in contact with the extra-ovular part of the embryo sac are crushed. The ultrastructure data of these cells are presented. We detected the accumulation of the actin cytoskeleton between the micropylar parts of the synergids and the extra-ovular part of central cell. This actin accumulation is unusual because in typical angiosperms the micropylar parts of the synergids form the apex of the female gametophyte.pl
dc.affiliationWydział Biologii i Nauk o Ziemi : Instytut Botanikipl
dc.contributor.authorPłachno, Bartosz - 131446 pl
dc.contributor.authorŚwiątek, Piotrpl
dc.date.accessioned2016-08-08T10:48:25Z
dc.date.available2016-08-08T10:48:25Z
dc.date.issued2012pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.number3pl
dc.description.physical663-670pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume249pl
dc.identifier.doi10.1007/s00709-011-0306-1pl
dc.identifier.eissn1615-6102pl
dc.identifier.issn0033-183Xpl
dc.identifier.projectROD UJ / Ppl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/29413
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa - Użycie niekomercyjne 4.0 Międzynarodowa*
dc.rights.licenceCC-BY-NC
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/legalcode.pl*
dc.share.typeinne
dc.subject.enactin microfilamentspl
dc.subject.enfemale gametophytepl
dc.subject.enembryo sacpl
dc.subject.enegg apparatuspl
dc.subject.encentral cellpl
dc.subject.enLentibulariaceaepl
dc.subject.encarnivorous plantspl
dc.subtypeArticlepl
dc.titleActin cytoskeleton in the extra-ovular embryo sac of Utricularia nelumbifolia (Lentibulariaceae)pl
dc.title.journalProtoplasmapl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
The actin cytoskeleton in the mature female gametophyte of angiosperms has been examined in only a few dicot and monocot species. The main purposes of this study were to identify how the actin cytoskeleton is arranged in the mature extra-ovular embryo sac in Utricularia nelumbifolia (Lentibulariaceae). We found that the extra-ovular part of the central cell has a well-developed actin cytoskeleton: actin microfilaments formed of long strands which run longitudinally or transversally to the long axis of the embryo sac. The exerted part of the central cell, which is exposed to the environment of the ovary chamber, is highly vacuolated and in the thin peripheral cytoplasm possesses a complicated network of actin microfilaments. The epidermal cells of the placenta that are in contact with the extra-ovular part of the embryo sac are crushed. The ultrastructure data of these cells are presented. We detected the accumulation of the actin cytoskeleton between the micropylar parts of the synergids and the extra-ovular part of central cell. This actin accumulation is unusual because in typical angiosperms the micropylar parts of the synergids form the apex of the female gametophyte.
dc.affiliationpl
Wydział Biologii i Nauk o Ziemi : Instytut Botaniki
dc.contributor.authorpl
Płachno, Bartosz - 131446
dc.contributor.authorpl
Świątek, Piotr
dc.date.accessioned
2016-08-08T10:48:25Z
dc.date.available
2016-08-08T10:48:25Z
dc.date.issuedpl
2012
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.numberpl
3
dc.description.physicalpl
663-670
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
249
dc.identifier.doipl
10.1007/s00709-011-0306-1
dc.identifier.eissnpl
1615-6102
dc.identifier.issnpl
0033-183X
dc.identifier.projectpl
ROD UJ / P
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/29413
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa - Użycie niekomercyjne 4.0 Międzynarodowa
dc.rights.licence
CC-BY-NC
dc.rights.uri*
http://creativecommons.org/licenses/by-nc/4.0/legalcode.pl
dc.share.type
inne
dc.subject.enpl
actin microfilaments
dc.subject.enpl
female gametophyte
dc.subject.enpl
embryo sac
dc.subject.enpl
egg apparatus
dc.subject.enpl
central cell
dc.subject.enpl
Lentibulariaceae
dc.subject.enpl
carnivorous plants
dc.subtypepl
Article
dc.titlepl
Actin cytoskeleton in the extra-ovular embryo sac of Utricularia nelumbifolia (Lentibulariaceae)
dc.title.journalpl
Protoplasma
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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