Temat: putrescine - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Arginine metabolism during NO- and polyamines-induced dormancy removal and germination of apple embryos
Autorzy:: Budnicka, K.
Krasuska, U.
Bogatek, R.
Gniazdowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/80327.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: conference
apple embryo
Malus domestica
germination
dormancy
arginine
polyamine
pretreatment
nitric oxide
putrescine
spermidine
spermine
Źródło:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796
Pojawia się w:: BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Biochemical activity of di- and polyamines in the green alga Chlorella vulgaris Beijerinck [Chlorophyceae]
Autorzy:: Czerpak, R
Bajguz, A.
Piotrowska, A.
Dobrogowska, R.
Matejczyk, M.
Wieslawski, W.
Powiązania:: https://bibliotekanauki.pl/articles/57046.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: spermine
alga
cell
agmatine
monosaccharide
Chlorella vulgaris
chlorophyll
growth
putrescine
polyamine
diamine
protein
spermidine
Opis:: This study concerns on the influence of diamines (agmatine, putrescine) and polyamines (spermine, spermidine) upon the growth and the content of chlorophyll a and b, monosaccharides and proteins in the cells of alga Chlorella vulgaris Beijerinck (Chlorophyceae). In the experiments agmatine, putrescine, spermine and spermidine in the range of concentrations 10-6-10-3 M were used. At the concentration 10-3 M and the 1st day of cultivation, they have a toxic effect on growth of the algae. It was found that di- and polyamines used within the range of concentration 10-6-10-4 M stimulate the growth and the contents of analysed biochemical parameters in the cells of C. vulgaris. The most stimulating influence on metabolism of the alga was demonstrated by spermidine and putrescine at concentration of 10-4 M. Agmatine and spermine were characterised by a lower biological activity than spermidine and putrescine demonstrated the most stimulating influence.
Źródło:: Acta Societatis Botanicorum Poloniae; 2003, 72, 1
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Effects of alpha-aminooxyacetic acid on the level of polyamines, anthocyanins and photosynthetic pigments in seedlings of common buckwheat (Fagopyrum esculentum Moench)
Autorzy:: Horbowicz, M.
Kosson, R.
Koczkodaj, D.
Lahuta, L.
Powiązania:: https://bibliotekanauki.pl/articles/57385.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Botaniczne
Tematy:: aminooxyacetic acid
Fagopyrum esculentum
alpha-aminooxyacetic acid
anthocyanin
photosynthetic pigment
polyamine level
seedling
chlorophyll
buckwheat
putrescine
spermidine
Opis:: The present paper discusses the effects of α-aminooxyacetic acid (AOA) on contents of polyamines, anthocyanins, photosynthetic pigments and phenylalanine ammonia-lyase activity in seedlings of common buckwheat (Fagopyrum esculentum Moench). AOA clearly decreased light-induced formation of anthocyanins and inhibited PAL activity in buckwheat hypocotyls, although a slight stimulatory effect on anthocyanins content in buckwheat cotyledons was observed. AOA declined the contents of chlorophylls a and b, and total carotenoids in buckwheat cotyledons. The results show that AOA inhibits phenylpropanoids biosynthesis in buckwheat hypocotyls, and suppress photosynthesis in cotyledons. Moreover, the experiments show that AOA enhances the level of free putrescine in hypocotyls and the level of spermidine in buckwheat cotyledons. AOA also diminished the content of putrescine in cotyledons, but did not affect its level in buckwheat hypocotyls. AOA also substantially declined the level of cadaverine in buckwheat cotyledons, and did not affect its content in hypocotyls. Differences in effect of AOA on anthocyanins and polyamines accumulation indicate various physiological roles of the compounds in buckwheat hypocotyls and cotyledons.
Źródło:: Acta Societatis Botanicorum Poloniae; 2011, 80, 2
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Polyamines and cell migration
Autorzy:: McCormack, S.A.
Johnson, L.R.
Powiązania:: https://bibliotekanauki.pl/articles/70020.pdf
Data publikacji:: 2001
Wydawca:: Polskie Towarzystwo Fizjologiczne
Tematy:: cytoskeleton
spermine
polyamine
ornithine decarboxylase
microtubule
cell migration
actin polymerization
putrescine
spermidine
Źródło:: Journal of Physiology and Pharmacology; 2001, 52, 3
0867-5910
Pojawia się w:: Journal of Physiology and Pharmacology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Comparison of polyamine content in leaves of barley plants grown in nickel stress conditions, caused by inorganic and chelatic nickel
Porównanie zawartości poliamin w liściach jęczmienia uprawianego w warunkach stresu powodowanego przez nikiel w formie nieorganicznej i chelatowej
Autorzy:: Molas, J.
Chrząstek, M.
Powiązania:: https://bibliotekanauki.pl/articles/126157.pdf
Data publikacji:: 2011
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: nickel stress
spermidine
spermine
spring barley
putrescine
jęczmień jary
spermidyna
spermina
stres niklowy
putrescyna
Opis:: In a pot experiment the effect of inorganic and chelatic nickel on the metabolism of polyamines in leaves of spring barley plants cv. Poldek was examined. Nickel was applied to acid soil in the form of NiSO4·7H2O and Ni-EDTA (M:L 1:1) in the doses of 50 and 75 mg Ni · kg–1 of soil. After a 10-day exposition of plants to the effect of inorganic and chelatic nickel, the content of putrescine in leaves increased, whereas the content of spermine and spermidine decreased. In stress conditions caused by inorganic nickel the increase of putrescine content and the decrease of spermine and spermidine content in barley leaves were much bigger than in stress conditions caused by chelatic nickel.
W doświadczeniu wazonowym zbadano wpływ niklu na metabolizm poliamin w liściach jęczmienia jarego odmiany Poldek. Nikiel aplikowano do gleby kwaśnej w formie NiSO4·7H2O oraz Ni-EDTA (M:L 1:1), w dawkach 50 i 75 mg Ni · kg–1 gleby. Po 10-dniowej ekspozycji roślin na działanie obu form chemicznych niklu zwiększyła się zawartość putrescyny, a obniżyła zawartość sperminy i spermidyny w liściach jęczmienia. W warunkach stresu powodowanego przez siarczan niklu zarówno poziom wzrostu zawartości putrescyny, jak i obniżenia sperminy i spermidyny w liściach był znacznie większy niż w warunkach stresu powodowanego przez chelat Ni-EDTA.
Źródło:: Proceedings of ECOpole; 2011, 5, 1; 77-81
1898-617X
2084-4557
Pojawia się w:: Proceedings of ECOpole
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Improvement of plant heat tolerance by modification of xanthophyll cycle activity
Autorzy:: Trojak, Magdalena
Skowron, Ernest
Powiązania:: https://bibliotekanauki.pl/articles/1178460.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: ascorbic acid (AsA);
calcium ions (Ca2+)
dithiothreitol (DTT)
heat stress
plant protection products (PPPs)
putrescine (Put)
xanthophyll cycle
Opis:: Plants are sessile organisms hence environmental factors such as excessive light and high air temperature lead to significant reductions of their productivity and quality of gained yield. In fact, scientific and agriculture hubs make lots of efforts to improve crop tolerance to elevated temperature, selecting more tolerant varieties. We analyzed less expensive and highly efficient method to improve resistance of well-known cultivars of crop plant by reversible modification of xanthophyll cycle. It functions as a safety valve to adjust energy transfer and protects fragile structures of photosynthetic machinery from excessive light, especially accompanied by heat or water stress. Efficiency of modified xanthophyll cycle activity was measured after pre-treatment with four, chemically different regulators, with or without light illumination. Analyses were carried out on barley (Hordeum vulgare L.) cv. Zenek treated with ascorbic acid (AsA), dithiothreitol (DTT), putrescine (Put) and calcium ions (Ca2+). To measure the scale of thermal energy dissipation we traced energy transfer absorbed by PSII with PAM chlorophyll fluorescence technique. Results showed clear correlation between AsA (activator of violaxanthin de-epoxidase) treatment and stimulation of the Φ(NPQ) at increased temperature. DTT (inhibitor of violaxanthin de-epoxidase) decreased the cycle activity at 45 °C at the same time increasing its value at 35°C, caused by interaction with other enzymes. Action of Put (hydrogen ions buffer) concerned mainly a non regulated Φ(NO) energy quenching. We noticed that application of Ca(NO3)2 (Ca2+ source for enzyme activity) reduced the Φ(NPQ) at 45 °C and stimulated it at 25 °C. Obtained results confirmed postulated possibility of creating new type of plant protection products (PPPs) able to precisely manage natural mechanisms of heat resistance.
Źródło:: World Scientific News; 2017, 70, 2; 51-70
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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