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1

Biotechnologia szansa dla zastosowania allelopatii jako alternatywnej metody zwalczania chwastow

100%
Gniazdowska A.
Biotechnologia
|
2007
|
nr 2
42-53
2

Rola tlenku azotu w metabolizmie komorki roslinnej

100%
Gniazdowska A.
Kosmos
|
2004
|
tom 53
|
nr 3-4
343-353
3

Czy oddzialywania allelopatyczne to 'nowa bron' roslin inwazyjnych? Kontrowersje wokol badan dotyczacych decydujacej roli katechiny w inwazji Centaurea maculosa

100%
Gniazdowska A.
Kosmos
|
2008
|
tom 57
|
nr 1-2
39-41
4

Oddzialywania allelopatyczne - 'nowa bron' roslin inwazyjnych

88%
Gniazdowska A.
Kosmos
|
2005
|
tom 54
|
nr 2-3
221-226
5

Regulacyjna rola tlenku azotu w kielkowaniu nasion

63%
Gniazdowska A., Bogatek R.
Postępy Biologii Komórki
|
2007
|
tom 34
|
nr 3
431-443
6

Nitric oxide and hydrogen cyanide as regulating factors of enzymatic antioxidant system in germinating apple embryos

63%
Krasuska U., Gniazdowska A.
Acta Physiologiae Plantarum
|
2012
|
tom 34
|
nr 2
Short-term (3 or 6 h) pre-treatment of apple (Malus domestica Borkh.) embryos with nitric oxide (NO) or hydrogen cyanide (HCN) induces transient accumulation of reactive oxygen species (ROS) leading to dormancy removal and germination. We demonstrated that enhanced NO emission by apple embryos during early phase of germination ‘‘sensu stricto’’ is required for seed transition from dormant into non-dormant state, and may be described by the model of ‘‘nitrosative door’’, analogous to ‘‘oxidative window’’. Cellular ROS concentration, resulting from NO or HCN embryo pre-treatment, seems to be under severe control of antioxidant system. Activity of superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), glutathione peroxidase (GPX) and total peroxidases (Prxs) was determined during NO and HCNmediated germination ‘‘sensu stricto’’ of embryos. CAT and SOD activity increased transiently 24 h after embryos pre-treatment, while GR and Prx activity was stimulated mainly after 96 h. The most evident alterations were detected in GPX activity, being more than threefold stimulated by NO or HCN. Based on this results, we conclude that these reactive molecules act simultaneously crossing their signaling pathways and we propose that ROS, reactive nitrogen species, HCN at accurate level are essential during seed germination as signaling factors.
7

Allelopathic interactions between plants. Multi site action of allelochemicals

63%
Gniazdowska A., Bogatek R.
Acta Physiologiae Plantarum
|
2005
|
tom 27
|
nr 3B
Allelopathy is defined as mechanism of plant-plant, plant-microorganisms, plant-virus, plant-insect, and plant-soil-plant interactions mediated by plant- or microorganism-produced chemicals released to the environment. The majority of allelochemicals are secondary metabolites and among others belong to terpenoids, phenolic compounds, organic cyanides and longchain fatty acids. The action of allelochemicals in target plant is diverse and affects a large number of biochemical reactions resulting in modifications of different physiological functions. Thus the results of allelochemical action can be detected at different levels of plant organization: molecular, structural, biochemical, physiological and ecological. Enzyme activities, cell division and ultrastructure, membrane permeability, ion uptake and as a consequence plant growth and development are modified by allelochemicals. Significant effects on photosynthesis and respiration are the best-characterized results of allelopathic interactions. Moreover allelopathic compounds seem to induce a secondary oxidative stress expressed as enhanced free radical production and induction of cellular antioxidant system. Plant survival under allelopathy stress conditions depends on plant defense leading to allelochemical detoxication, the process which may go on in parallel to cell defense reaction to oxidative stress. The article presents some aspects of the current knowledge regarding mechanisms of the allelopathy phenomenon. The allelopathy is a complex problem, thus comprehensive understanding of allelochemical mode of action requires further investigation and still remains an open question.
8

Phosphate deficiency stress and nitrate uptake by bean plants

63%
Gniazdowska A., Rychter A.
Biological Bulletin of Poznań. Supplement
|
1997
|
tom 34
9

Nitric oxide and HCN reduce deep dormancy of apple seeds

63%
Bogatek R., Gniazdowska A.
Acta Physiologiae Plantarum
|
2006
|
tom 28
|
nr 3
Nitric oxide (NO) and cyanide (HCN) are small gaseous molecules that have been intensively studied to explain their role in plant development, metabolism and reaction to stresses. Cyanide and NO are known to be produced endogenously during early phase of seed germination or are present in the environment. Both molecules regulate breakage of seed dormancy and accelerate seed germination. Regulatory role of cyanide in breaking of dormancy seems to be understood to some extend, while the NO mode of action is much less explained. However, some similarities could be suggested. The mechanisms involved in HCN-dependent dormancy breakage in apple embryos are summarized in relation to NO-donor mediated stimulation of germination.
10
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Phytotoxic effects of m-tyrosine on tomato (Solanum lycopersicum L.) root growth – alterations in ROS production and hormonal balance

51%
Olechowicz J., Gniazdowska A., Krasuska U., Bogatek R.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
|
2013
|
tom 94
|
nr 3
11

Menu roślin mięsożernych

51%
Krasuska U., Glinka A., Gniazdowska A.
Kosmos
|
2012
|
tom 61
|
nr 4
12
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Phytotoxic effects of Cyanamide on seed germination ans seedling growth of weed crop species

51%
Soltys D., Bogatek R., Gniazdowska A.
Acta Biologica Cracoviensia. Series Botanica
|
2012
|
tom 54
|
nr 2
We examined the response of plants of various crop and weed species to cyanamide in order to evaluate allelochemical- mediated interactions between the species. We studied germination and seedling growth in the common weeds Galium aparine L. and Amaranthus retroflexus L., and the crops Zea mays L., Triticum aestivum L., Lactuca sativa L., Solanum lycopersicum L. and Sinapis alba L. as acceptor plants. Concentration-dependent phytotoxic effects of cyanamide were noted during seed germination and in the root and shoot growth of the tested plants. The monocotyledonous plants generally were less sensitive to cyanamide treatment. Seed germination and seedling growth of the dicotyledonous plants were strongly inhibited by the allelochemical at both tested concentrations (1.2 mM, 3 mM). We conclude that cyanamide has potential for use as a natural herbicide only in specific field systems of cyanamide-tolerant monocotyledonous crops accompanied by cyanamide-sensitive dicotyledonous weeds.
13

Expansin gene expression in tomato roots in modified by m-tyrosine - nonprotein aminoacid

51%
Szfranski K., Wisniewska A., Gniazdowska A., Bogatek R.
Acta Biologica Cracoviensia. Series Botanica. Supplement
|
2009
|
tom 51
|
nr 2
14

Autotoksyczność roślin jako przykład oddziaływań allelopatycznych

51%
Soltys D., Debska K., Bogatek R., Gniazdowska A.
Kosmos
|
2010
|
tom 59
|
nr 3-4
15

Signalling role of ROS and phytohormones in allelopathic interactions between plants

51%
Bogatek R., Oracz K., Gniazdowska A.
Acta Physiologiae Plantarum
|
2007
|
tom 29
|
nr 1 Suppl.
16
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Modification of ROS level by m-tyrosine during tomato (Lycopersicon esculentum) root growth

51%
Olechowicz J., Krasuska U., Gniazdowska A., Bogatek R.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
|
2013
|
tom 94
|
nr 2
17

Poliaminy w regulacji spoczynku i kiełkowania nasion

51%
Krasuska U., Budnicka K., Bogatek R., Gniazdowska A.
Postępy Biologii Komórki
|
2012
|
tom 39
|
nr 3
18

Induction of oxidative stress as canavanine indirect mode of action

51%
Staszek P., Krasuska U., Gniazdowska A.
Acta Physiologiae Plantarum
|
2018
|
tom 40
|
nr 11-11th International Conference Plant Functioning under Environmental Stress...
19

Sorgoleon - główny związek warunkujący potencjał allelopatyczny sorga (Sorghum spp.)

51%
Soltys D., Gniazdowska A., Bogatek R.
Kosmos
|
2010
|
tom 59
|
nr 3-4
20

AtPase activity in plasmalemma of bean roots during phosphate deficiency

51%
Gniazdowska A., Podbielkowska M., Rychter A. M.
Acta Physiologiae Plantarum
|
1998
|
tom 20
|
nr 1 suppl.
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