Wyniki wyszukiwania - AGRO

1

Variation in brown trout [ Salmo trutta L.] reproductive characteristics in the River Usk, South Wales

100%

Bembo D. G., Beverton R. J. H., Weightman A. J., Cresswell R. C.

Polskie Archiwum Hydrobiologii

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1995

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tom 42

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nr 3

2

Changes in phytic acid, phytase activity and inorganic phosphorus during maturation of triticale varieties resistant and susceptible to pre-harvest sprouting

100%

Niziolek S.

Acta Physiologiae Plantarum

|

1995

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tom 17

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nr 3

3

Influence of liver environment on the maturation of isolated epiphyseal chondrocyte transplants

100%

Moskalewski S., Hyc A., Kupinska U., Grzela T.

Folia Histochemica et Cytobiologica

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1993

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tom 31

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nr 1

4

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

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1986

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tom 24

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nr 4

5

Comparison of dynamic behavior and maturation of neural multipotent cells derived from different spinal cord developmental stages: an in vitro study

86%

Slovinska L., Szekiova E., Blasko J., Devaux S., Salzet M., Cizkova D.

Acta Neurobiologiae Experimentalis

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2015

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tom 75

|

nr 1

Neural progenitor cells (NPCs) are characterized as undifferentiated cells with the ability of self-renewal and multipotency to give rise to other cells of the nervous system. In our in vitro study we demonstrate the proliferative and differentiative potential of NPCs isolated from the spinal cord at different developmental stages (embryonal, early postnatal, adult), maintained and expanded within neurospheres (NSs). Using the NSs culture system, we examined the size, number of NSs and their fate when exposed to differentiation conditions. Based on immunocytochemical analyses for cell markers (MAP 2, GFAP, RIP) we evaluated the occurrence of various cell types: neurons, astrocytes and oligodendrocytes. The results show that NSs increased in size during cultivation time via NPC proliferation, but proliferation potential decreased during maturation stages. In addition, NPCs derived from spinal cord developmentally different stages gave rise to a consistent ratio of glial and neuronal progeny (3:1), and adult tissues represent a comparable source of NPCs compared to embryonal and early postnatal tissues. These data provide useful information for large-scale in vitro expansion of NPCs required for potential cell therapy after spinal cord injury.

6

Functional maturation of thymocytes: recruitment of helper cells in the humoral immune response to SRBC in vitro by recombinant interleukin 1 (Il-1)

86%

Zimecki M., Wieczorek Z.

Archivum Immunologiae et Therapiae Experimentalis

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1989

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tom 37

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nr 3-4

7

Changes in contractile properties and action potentials of motor units in the rat medial gastrocnemius muscle during maturation

86%

Dobrzynska Z., Celichowski J.

Journal of Physiology and Pharmacology

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2016

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tom 67

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nr 1

8

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

The in vitro culture supplements and selected aspects of canine oocytes maturation

86%

Bukowska D., Kempisty B., Piotrowska H., Zawierucha P., Brussow K. P., Jaskowski J. M., Nowicki M.

Polish Journal of Veterinary Sciences

|

2012

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tom 15

|

nr 1

The maturation of oocytes is one of the most important steps determining their developmental competence. Due to the low percentage of oocytes of bitches that reach the MII stage, searching for reagents that may stimulate the growth and maturation of oocytes is still present in this species of mammals. The most important media supplements include gonadotropins (LH, FSH, hCG), growth factors (IGF, TGF, EGF, FGF), progesterone and follicular fluid. It is suggested that the supplement of EGF, and/or follicular cells may have an important influence on the percentage of cells that reach the MII stage. Despite plenty of research based on the improvement of bitch oocytes in vitro culture, the results obtained are still unsatisfactory. Moreover, in the long stages of canine oocytes maturation many molecular and morphological modifications (including changes in mitochondria structure and configuration in the cytoplasm) are involved. In this article, the influence of selected media supplements on the efficiency of bitch oocytes in vitro maturation was described. The molecular and morphological modifications during canine oocytes maturation were also considered in the text.

9

Maturation of Oriental beechnuts (Fagus orientalis)

86%

Yilmaz M., Dirik H.

Dendrobiology

|

2008

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tom 60

57-62

In this study, both the morphological maturation and germination ability of the Oriental beechnut were investigated two months prior to seed dispersal to find out the appropriate period of ripened beechnut collection. Beechnuts were collected in the seed stand, Dokurcun-Adapazari, on August 21, September 9, and September 25 on trees, and on October 16, 2003, from the ground after the major seed fall. Germination percentages were 18.0%, 80.5%, 92.0%, and 94.7% on August 21, September 9, September 25, and October 16, respectively. Similarly, both beechnut weight and the embryo:beechnut weight ratio significantly increased with time and reached an approximate maximum level at September 25, 2–3 weeks prior to seed dispersal. This outcome indicates that ripened beechnuts can be collected from the trees, 15–20 days prior to major seed dispersal. The study also indicates that ripened Oriental beechnuts have physiological dormancy and need about 8–10 weeks chilling at 3°C for germination.

10

How pollination affects the egg cell maturation in maize?

86%

Mol R.

Acta Biologica Cracoviensia. Series Botanica. Supplement

|

2005

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tom 47

|

nr 1

11

The influence of the composition of some media on the production of bovine embryos in vitro

86%

Leipute K., Aniulis E.

Polish Journal of Veterinary Sciences

|

2001

|

tom 04

|

nr 2

12

Precocious maturation of males of the sea trout [Salmo trutta L.] age 0 grown in natural conditions

86%

Dziewulska K.

Acta Biologica Cracoviensia. Series Botanica et Zoologia. Supplement

|

1997

|

tom 39

|

nr 1

13

An evaluation of size versus age dependent maturation of lake whitefish stocks in the upper Great Lakes

86%

Taylor W. W., Smale M. A., Brown R. W.

Polskie Archiwum Hydrobiologii

|

1992

|

tom 39

|

nr 3-4

14

Late steps of the egg cell maturation in maize [Zea mays L.]

86%

Mol R., Matthys-Rochon E., Dumas C.

Acta Biologica Cracoviensia. Series Botanica et Zoologia. Supplement

|

1997

|

tom 39

|

nr 1

15

Morphological indications of the functional maturation of the nervous system

86%

Wozniak W.

Folia Histochemica et Cytobiologica. Supplement

|

1996

|

tom 34

|

nr 1

16

Ethylene production, 1-aminocyclopropane-1-carboxylic acid [ACC] content and the ACC-conversion capability in strawberry fruits in consecutive stages of their growth and ripening

86%

Plich H., Sas L., Miszczak A.

Journal of Fruit and Ornamental Plant Research

|

1995

|

tom 03

|

nr 2

17

Parvalbumin containing neurons of the piriform cortex in open field stress - a developmental study in the rat

86%

Badowska-Szalewska E., Klejbor I., Ludkiewicz B., Luczynska A., Domaradzka-Pytel B., Dziewiatkowski J., Morys J.

Folia Morphologica

|

2004

|

tom 63

|

nr 4

In our study we used c-Fos protein (as a marker of cellular activity) to identify whether cells containing parvalbumin (PV) in the piriform cortex (PC) are engaged in the response to stress stimulation and to discover how this expression changes during maturation. The material consisted of Wistar rats of postnatal (P) ages between 0 and 120 days divided into 9 groups: P0, P4, P7, P10, P14, P21, P30, P90, P120. Each group consisted of 5 experimental and 3 control animals. Rats of the experimental groups were exposed to the “open field test” throughout 10 minutes. The control animals were kept in a home cage. Our results showed that c-Fos activity in the open field test was observed in layers II and III of PC after birth. It then increased and stabilised on P30. In the second week of life PV-positive cells were also observed in those layers. These achieved maturity in the 4th week of life. After this time basket-like structures appeared but the level of PV/c-Fos co-localisation was low. Only small differences were observed between the anterior and posterior parts of PC. In the anterior part a higher number of PV-positive neurons, neuropil threads, and basket-like structures and a larger degree of PV/c-Fos co-localisation were observed. Our results suggested that during maturation PV cells are not directly activated in response to stress stimuli but PV neurons via their numerous endings influence the activation of c-Fos-positive cells predominantly in the anterior part of PC.

18

Evidence for aromatase localization in cytoplasmic droplet of human immature ejaculated spermatozoa

86%

Rago V., Bilinska B., Palma A., Ando S., Carpino A.

Folia Histochemica et Cytobiologica

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2003

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tom 41

|

nr 1

19

Spectral properties of sweet pepper fruits

86%

Czarnowski M., Cebula S.

Folia Horticulturae

|

1998

|

tom 10

|

nr 1

20

Effect of PEG 4000 on maturation, germination and conversion frequency of Picea abies and P. omorika somatic embryos

72%

Wawrzyniak M., Hazubska-Przybyl T., Obarska A., Bojarczuk K.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

|

2015

|

tom 96

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nr 1

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