Wyniki wyszukiwania

1

Deschampsia antarctica responses to abiotic stress factors

100%

Gielwanowska I.

Acta Physiologiae Plantarum

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2003

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tom 25

|

nr 3 suppl.

2

Specyfika rozwoju antarktycznych roslin naczyniowych Colobanthus quitensis [Kunth] Bartl. i Deschampsia antarctica Desv.

100%

Gielwanowska I.

Rozprawy i Monografie. Uniwersytet Warmińsko-Mazurski w Olsztynie

|

2005

|

tom 112

1-172

3

Biologiczne przystosowania roślin kwiatowych do warunków klimatycznych Antarktyki Morskiej

100%

Gielwanowska I.

Kosmos

|

2013

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tom 62

|

nr 3

4

Responses of Deschampsia antarctica to abiotic stress factors

100%

Gielwanowska I.

Polish Journal of Natural Sciences. Supplement

|

2003

|

tom 01

5

Mikrotubularny cytoszkielet w sporogenezie Ophioglossum vulgatum L.

63%

Gielwanowska I., Szczuka E.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EEE: Horticultura

|

2002

|

tom 10

181-188

6

Mikrotubularny cytoszkielet w mikrosporogenezie Dactylorhiza majalis [Rchb] Hunt et Summerh.

63%

Gielwanowska I., Szczuka E.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EEE: Horticultura

|

2003

|

tom 13

63-69

7

Generative reproduction of Antarctic grasses, the native species Deschampsia antarctica Desv. and the alien species Poa annua L.

63%

Gielwanowska I., Kellmann-Sopyla W.

Polish Polar Research

|

2015

|

tom 36

|

nr 3

8

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

New ultrastructural and physiological features of the thallus in antarctic lichens

63%

Gielwanowska I., Olech M.

Acta Biologica Cracoviensia. Series Botanica

|

2012

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tom 54

|

nr 1

The paper describes anatomical and physiological features of photobionts and mycobionts in Bryoria forsteri Olech & Bystrek, Caloplaca regalis (Vain.) Zahlbr., Cetraria aculeata (Schreb.) Fr., Ramalina terebrata Hook f. & Taylor, Sphaerophorus globosus (Huds.) Vain. and Usnea antarctica Du Rietz, collected in the Antarctic under varied weather conditions. Green algae from the genera Lobosphaera and Trebouxia were gathered in depressions of the cortex under the more resistant mycobiont hyphae. In photobiont cells a large amount of highly osmiophilic electron-dense PAS-negative material, lipid-like in character, was of particular interest. Similar material also filled certain areas of the aerial apoplast. A star-shaped chromatophore with central and lateral pyrenoids encompassed most of the photobiont protoplast in all the studied species. Regularly arranged thylakoids with evenly widened lumina along their entire length and osmiophilic lipid droplets adhering to their outer surfaces were visible within the pyrenoid. Inside the chloroplast, large protein inclusions tightly joined with the thylakoids were observed. The mycobionts were closely attached to each other another and with the photobionts by means of an outer osmiophilic wall layer, and formed intramural haustoria. Their protoplasts were filled with PAS-positive polysaccharides and a large amount of lipid-like substances. The photobionts were physiologically active and produced a large amount of electron-dense osmiophilic material, and PAS-positive starch grains were visible around their pyrenoids in the thalli collected in different weather conditions. The permanent reserves of nutritive materials deposited in the thalli enable these organisms to quickly begin and continue indispensable physiological processes in the extreme Antarctic conditions.

9

Stan i dendroflora parków wiejskich województwa olsztyńskiego. Cz. I.

63%

Stypinski P., Gielwanowska I.

Rocznik Dendrologiczny

|

1989

|

tom 37

10

Cutin fluorescence in early embryos of Pinus and Tsuga

63%

Szczuka E., Gielwanowska I.

Acta Societatis Botanicorum Poloniae

|

1996

|

tom 65

|

nr 1-2

151-153

11

Cuticle on the surface of cupressaceae embryos

63%

Gielwanowska I., Szczuka E.

Acta Biologica Cracoviensia. Series Botanica et Zoologia. Supplement

|

1997

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tom 39

|

nr 1

12

Aggregations of organelles in sporogenesis of Pteridophyta and microsporogenesis of Gymnospermae

63%

Gielwanowska I., Szczuka E.

Bulletin of the Polish Academy of Sciences. Biological Sciences

|

1997

|

tom 45

|

nr 2-4

13

The influence of senescence on some fungi of the genus Candida

63%

Dynowska M., Gielwanowska I.

Acta Mycologica

|

1991-1992

|

tom 27

|

nr 1

14

What is the composition and content of soluble carbohydrates in developing and mature diaspores of Antarctic vascular plants?

51%

Kellmann-Sopyla W., Gielwanowska I., Lahuta L. B.

Acta Physiologiae Plantarum

|

2016

|

tom 38

|

nr 01-10th International Conference Plant Functioning under Environmental Stress...

15

High anatomical and low genetic diversity in Deschampsia antarctica Desv. from King George Island, the Antarctic

51%

Chwedorzewska K. J., Gielwanowska I., Szczuka E., Bochenek A.

Polish Polar Research

|

2008

|

tom 29

|

nr 4

377-386

16

Effect of environmental conditions on germination and persistence of Taraxacum officinale seeds in a soil bank

51%

Bochenek A., Gielwanowska I., Piotrowicz-Cieslak A., Zuk-Golaszewska K.

Acta Physiologiae Plantarum

|

2007

|

tom 29

|

nr 1 Suppl.

17

Embriologia Althaea rosea [L.]Cav.: znamie, megasporogeneza i rozwoj gametofitu zenskiego

51%

Szczuka E., Szozda A., Gielwanowska I.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EEE: Horticultura

|

2002

|

tom 10

25-33

18

Morphological and anatomical traits of polar Caryophyllaceae diaspores as adaptive strategy for hard environmental conditions

51%

Koc J., Gielwanowska I., Kellmann-Sopyla W.

Acta Physiologiae Plantarum

|

2016

|

tom 38

|

nr 01-10th International Conference Plant Functioning under Environmental Stress...

19

Zapylenie u antarktycznej rośliny kwiatowej Colobanthus quitensis (Kunth) Bartl.

51%

Gielwanowska I., Szczuka E., Bochenek A.

Acta Agrobotanica

|

2006

|

tom 59

|

nr 1

Colobanthus quitensis forms chasmogamic and cleistogamic flowers. Their structure signals the possibility of both cross-pollination and self-pollination. In favorable conditions (natural or laboratory), flowers open creating a possibility for cross-pollination. The occurrence of cleistogamy in the investigated species may be conditioned by abiotic factors: low temperature, high air humidity, and strong wind. In closed flowers, a part of pollen grains reaches the stigma surface, and the rest remains inside the microsporangium. Pollen grains germinate on the stigma surface or inside the microsporangium. Often, two or more pollen tubes grow from a single pollen grain. Closed flowers and the direct contact between the style stigma and anther prove the preference for autogamy. Autogamy ensures the reproductive success of the investigated plant in the exceptionally harsh Antarctic environment.

20

Influence of environmental factors on reproduction of polar vascular plants

51%

Kellmann-Sopyla W., Pastorczyk M., Gielwanowska I.

Papers on Global Change

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2011

|

nr 18

In the last few decades, changes of reproductive pattern of polar vascular plants have been observed, for the benefit of generative propagation. The reasons for this phenomenon are attributed to intensively following climate change, whose effects may be various. Warming causes the production of the greater number of generative structures, with higher quality. Our macroscopic observations conducted on specimens of polar vascular plants, cultivated in University of Warmia and Mazury greenhouse, indicate that the effect of temperature increase on flower development and seed formation is inconsistent. On the other hand enhanced levels of UV-B radiation can negatively affect seedlings. The complexity of the climate change causes tremendous difficulties in defining a clear and unquestioned way of modifications during the reproductive phase of the described plants.

Ograniczanie wyników

Deschampsia antarctica responses to abiotic stress factors

Specyfika rozwoju antarktycznych roslin naczyniowych Colobanthus quitensis [Kunth] Bartl. i Deschampsia antarctica Desv.

Biologiczne przystosowania roślin kwiatowych do warunków klimatycznych Antarktyki Morskiej

Responses of Deschampsia antarctica to abiotic stress factors

Mikrotubularny cytoszkielet w sporogenezie Ophioglossum vulgatum L.

Mikrotubularny cytoszkielet w mikrosporogenezie Dactylorhiza majalis [Rchb] Hunt et Summerh.

Generative reproduction of Antarctic grasses, the native species Deschampsia antarctica Desv. and the alien species Poa annua L.

New ultrastructural and physiological features of the thallus in antarctic lichens

Stan i dendroflora parków wiejskich województwa olsztyńskiego. Cz. I.

Cutin fluorescence in early embryos of Pinus and Tsuga

Cuticle on the surface of cupressaceae embryos

Aggregations of organelles in sporogenesis of Pteridophyta and microsporogenesis of Gymnospermae

The influence of senescence on some fungi of the genus Candida

What is the composition and content of soluble carbohydrates in developing and mature diaspores of Antarctic vascular plants?

High anatomical and low genetic diversity in Deschampsia antarctica Desv. from King George Island, the Antarctic

Effect of environmental conditions on germination and persistence of Taraxacum officinale seeds in a soil bank

Embriologia Althaea rosea [L.]Cav.: znamie, megasporogeneza i rozwoj gametofitu zenskiego

Morphological and anatomical traits of polar Caryophyllaceae diaspores as adaptive strategy for hard environmental conditions

Zapylenie u antarktycznej rośliny kwiatowej Colobanthus quitensis (Kunth) Bartl.

Influence of environmental factors on reproduction of polar vascular plants