Wyniki wyszukiwania - Biblioteka Nauki

1

Ultrastructural changes of ACHE activity, during regeneration Catenula leptocephala (Archoophora, Turbellaria)

100%

Czubaj A.

Folia Histochemica et Cytobiologica

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1986

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tom 24

|

nr 4

2

Ultrastructural changes in mesometrial lymphatics during the oestrous cycle in pigs

100%

Doboszynska T. , Andronowska A. , Zezula-Szpyra A. , Maksymowicz M. , Gawronska B.

Folia Histochemica et Cytobiologica. Supplement

|

1996

|

tom 34

|

nr 1

3

Ultrastructural changes in the columella cells of rape (Brassica napus L.) during seed maturation and germination

86%

Kuras M. , Tykarska T. , Auguscik J.

Folia Histochemica et Cytobiologica

|

1986

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tom 24

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nr 4

4

Microscopic-electron experimental examination of mastocytes in the mammary gland under the ifluence of the chosen factors

86%

Zarzycki J. , Jagoda E. , Krajewska B.

Folia Histochemica et Cytobiologica

|

1986

|

tom 24

|

nr 4

5

The effect of cadmium dust on the morphology of ericoid mycorrhizal fungi

86%

Turnau K.

Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Prace Botaniczne

|

1990

|

tom 21

6

Ultrastructural changes in Bacillus sp. cell organization under the influence of veratric acid

86%

Przyczyna-Bialopiotrowicz M. , Malarczyk E.

Folia Histochemica et Cytobiologica

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1986

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tom 24

|

nr 4

7

Steroid hormone (prednisolone) influence on the unicellular Tetrahymena (an electron microscopic study)

86%

Csaba G. , Fulop A. K.

Acta Protozoologica

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1987

|

tom 26

|

nr 3

8

Ultrastructural and antioxidative changes in lupine embryo axes in response to salt stress

86%

Wojtyla L. , Grabsztunowicz M. , Garnczarska M.

Acta Societatis Botanicorum Poloniae

|

2013

|

tom 82

|

nr 4

EN

Embryo axes of lupine (Lupinus luteus L. ‘Mister’) were subjected to 0.1 M NaCl salt stress for 24 and 48 h. The ultrastructure modification and adjustment of antioxidant enzymes activities and izoenzymes profiles were observed. In cells of lupine embryo axes grown for 48 hours in medium with 0.1 M NaCl mitochondria took the forked shape and bulges of the outer mitochondrial membranes appeared. Moreover, the inflating and swelling of rough endoplasmic reticulum (RER) lumen and fragmentation of RER were noticed. The level of H2O2 was higher in salt treated embryo axes after 24 hours and increase of thiobarbituric acid reactive substances was observed after both 24 and 48 h of salt treatment. Native gel electrophoresis showed increased intensities of bands for catalase isozymes in response to salt stress, whereas activity of catalase was higher only in embryo axes grown for 48 h in control conditions. Appearance of two new isoforms of ascorbate peroxidase was observed after 48 h only under control condition, however increased activities were stated for both control and salt-stress condition after 48 h. No changes in isozymes pattern for superoxide dismutase were observed, but significant decrease in superoxide dismutase activity was noticed in relation to time and salt stress. Possible role of these enzymes in salt stress tolerance is discussed. The 0.1 M salt stress is regarded as a middle stress for lupine embryo axes and the efficiency of stress prevention mechanisms is proposed.

9

Ultrastructural changes in the follicular cells during the oocyte growth in Nicoletia phytophila [Insecta, Zygentoma]

86%

Szklarzewicz T.

Zoologica Poloniae

|

1993

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tom 38

|

nr 1-4

10

Effect of pentoxifylline on the development of apoptosis-like changes in experimental lung damage

86%

Sulkowska M. , Sulkowski S.

Folia Histochemica et Cytobiologica

|

1999

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tom 37

|

nr 2

11

Ultrastructural changes in acinar cell mitochondria of the rat pancreas in the course of lead intoxication

86%

Szynaka B. , Andrzejewska A.

Folia Histochemica et Cytobiologica. Supplement

|

1996

|

tom 34

|

nr 1

12

Ultrastructural changes in the cells of rhizomes of Polypodium vulgare L. after consecutive dehydrations

86%

Bagniewska-Zadworna A. , Zenkteler E.

Cellular and Molecular Biology Letters

|

2002

|

tom 07

|

nr Suppl.

13

Ultrastructural changes in leaf cells infected with Arabis mosaic nepovirus. II. In Chenopodium quinoa plants

86%

Zielinska L. , Pospieszny H.

|

nr 2

14

Morphometrical characterization of green hydra symbiosis

72%

Kovacevic G. , Horvatin K. , Ljubesic N. , Kalafatic M.

Folia Biologica

|

2017

|

tom 65

|

nr 3

15

Ultrastructural picture of rat cerebellum in culture subjected to the action of antiglial immune serum

72%

Weinrauder H. , Gajkowska B.

Bulletin of the Polish Academy of Sciences. Biological Sciences

|

1987

|

tom 35

|

nr 1-3

16

Effect of alkylating drugs on rat cerebellum

72%

Maslinska D.

Folia Histochemica et Cytobiologica

|

1986

|

tom 24

|

nr 1

17

Metformin decreases the expression of VEGF-A and CTGF-1 and improves histological, ultrastructural and hormonal changes in adult rat polycystic ovary

72%

Attia G. M. , Elmansy R. A. , Elsayed M. H.

Folia Biologica

|

2019

|

tom 67

|

nr 1

18

In vivo and in vitro studies on multidirectional mechanism of anti-allergic activity of budesonide

72%

Trybus E. , Krol G. , Obarzanowski T. , Trybus W. , Kopacz-Bednarska A. , Obarzanowski M. , Krol T.

Journal of Physiology and Pharmacology

|

2017

|

tom 68

|

nr 6

19

Some ultrastructural changes produced by vaccinia virus in Onychodromus acuminatus (Ciliata, Hypotricha)

72%

Jareno M. A.

Acta Protozoologica

|

1987

|

tom 26

|

nr 1

20

Ultrastructural changes in zygotic embryos of Gentiana punctata L. during callus formation and somatic embryogenesis

72%

Mikula A. , Tykarska T. , Zielinska M. , Kuras M. , Rybczynski J. J.

Acta Biologica Cracoviensia. Series Botanica

|

2004

|

tom 46

109-120

EN

Imbibed immature zygotic embryos of Gentiana punctata L. were cultured on MS (Murashige and Skoog) medium consisting of 4.5 µM dicamba, 0.54 µM NAA (naphtaleneacetic acid), 8.88 µM BAP (6-benzylaminopurine) and 0.43 mM AS (adenine hemisulfate). The primary response of expiants consisted in thickening of the subcotyledon and hypocotyl root (HR) zone. Cotyledons and the seminal root did not show any response. Ultrastructural analysis of the initial stages of callus formation revealed numerous changes in cells of expiants. Dedifferentiation of the explant tissues was associated with separation of cells resulting from thickening and folding of walls, destruction of plasmodesmata, and enlargement of intercellular spaces. At the same time, the number of lipid bodies decreased and starch appeared. Indicative of changes in 3-day cultures, the first cell divisions were observed to occur in the HR zone, including cells of the primary cortex, endodermis and pericycle. The dividing cells contained small vacuoles, large, centrally located, layered nuclei with vacuolated nucleoli, amyloplasts with starch, lipid bodies, numerous active Golgi structures, mitochondria and rough endoplasmic reticulum. Actively dividing cells formed callus tissue in which three zones of cells could be distinguished after 14 days of culture: (I) outer (starch) layer, (II) middle layer with actively at dividing small cells, and (III) inner layer containing large vacuolated cells. As the result of cell divisions, at about the fourth week of culture the starch zone formed meristematically active centers of small cells, with dense cytoplasm and large amounts of starch. Among them were small cellular complexes consisting of three cells, with the cell wall structure typical for pre-embryos. By the fifth week of culture, numerous globular and early heart-shaped somatic embryos which formed cotyledons were observed, and further mature somatic embryos showing conversion ability.