Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Elżbieta Bednarska"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract The involvement of Ca2+ ions in angiosperms sexual processes is well established, while in gymnosperms, such knowledge remains limited and is still a topic of discussion. In this study, we focused on Larix decidua, using Alizarin-red S stain
Externí odkaz:
https://doaj.org/article/c8dbf6bebdce4f76ad1657ee51de39ec
Autor:
Anna Suwińska, Piotr Wasąg, Elżbieta Bednarska-Kozakiewicz, Marta Lenartowska, Robert Lenartowski
Publikováno v:
BMC Plant Biology, Vol 22, Iss 1, Pp 1-19 (2022)
Abstract Background Pollen development in the anther in angiosperms depends on complicated cellular interactions associated with the expression of gametophytic and sporophytic genes which control fundamental processes during microsporo/gametogenesis,
Externí odkaz:
https://doaj.org/article/594edc7c4f604e77b8dce0436af2ffe0
Autor:
Katarzyna Rafińska, Katarzyna Niedojadło, Michał Świdziński, Janusz Niedojadło, Elżbieta Bednarska-Kozakiewicz
Publikováno v:
International Journal of Molecular Sciences, Vol 22, Iss 9, p 4298 (2021)
The role of ArabinoGalactan Proteins (AGPs) in the sexual reproduction of gymnosperms is not as well documented as that of angiosperms. In earlier studies, we demonstrated that AGPs play important roles during ovule differentiation in Larix decidua M
Externí odkaz:
https://doaj.org/article/8d7f8770d9624a0f811c24178c10cb4a
Autor:
Magdalena Skórka, Apolonia Sieprawska, Elżbieta Bednarska-Kozakiewicz, Katarzyna Gawrońska, Andrzej Kornaś, Anna Telk
Publikováno v:
Agronomy, Vol 10, Iss 4, p 510 (2020)
Industrial and agronomic activities lead to oversupply and accumulation of elements in the environment. Relatively little is known about mechanisms of manganese (Mn) triggered stress. In this study, different cultivars of popular cereals wheat, oat,
Externí odkaz:
https://doaj.org/article/919b988ed0704572b05fe0773d9d052c
Autor:
Elżbieta Bednarska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 60, Iss 3-4, Pp 285-294 (2014)
Calcium is present in the surface cells of both types of stigma. The chlorotetracycline method was used to show that the papillae of the dry stigma of Primula officinalis are the source of fluorescence of the CTC-Ca2+ complex. The precipitation metho
Externí odkaz:
https://doaj.org/article/55e1a6b9b6b54b5c8a4be859ba6c0447
Autor:
Elżbieta Bednarska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 64, Iss 1, Pp 19-24 (2014)
In the pistil of Petunia hybrida, the transmitting tract and the ovules are the sites which give Ca2+-CTC fluorescence. In unpollinated pistil the level of membrane-associated Ca2+ decreases from the stigma to the base of the style. The renewed stron
Externí odkaz:
https://doaj.org/article/2c5f2399df8c466bbccb308f4558e21c
Autor:
Elżbieta Bednarska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 58, Iss 2, Pp 199-210 (2014)
It is shown that callose synthesis in the Oenothera biennis pollen tube is regulated by the endogenous Ca2+ level. Calcium antagonists reduced the amount of callose in the wall above the tip of the pollen tube (Verapamil - calcium channels blocker) a
Externí odkaz:
https://doaj.org/article/718029c327a44213801af2e6cf14140a
Autor:
Elżbieta Bednarska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 57, Iss 2, Pp 235-245 (2014)
The sequence of ultrastructural changes in the cytoplasm during the successive stages of pollen grain development in Hyacinthus orientulis pollen cells was studied. The cytoplasmic transformations of the generative cell included the elimination of pl
Externí odkaz:
https://doaj.org/article/cf524f8f59fa4c34bdad38872f2b0a04
Autor:
Elżbieta Bednarska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 50, Iss 3, Pp 367-380 (2014)
DNA and histone synthesis in five consecutive morphological stages of Hyacinthus orientalis L. pollen grain differentiation were studied autoradiographically. DNA synthesis was found to occur in both the generative and the vegetative cell. DNA replic
Externí odkaz:
https://doaj.org/article/7e83a06314174645a4dd92764c6e2a23
Autor:
Elżbieta Bednarska
Publikováno v:
Acta Societatis Botanicorum Poloniae, Vol 53, Iss 2, Pp 145-158 (2014)
RNA and protein synthesis were investigated in generative and vegetative cells during maturation of pollen grains. The rate of RNA and protein synthesis was analysed in reference to the successive interphase periods of the life cycle of pollen cells
Externí odkaz:
https://doaj.org/article/a24c397493e648b9a303c4f85bcef184