Autor: Ciereszko, I. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Vitamin C reduces the symptoms of oxidative stress in Chlorella vulgaris cells under Pi deficit
Autorzy:: Kozlowska-Szerenos, B.
Tarasiuk, P.
Ciereszko, I.
Powiązania:: https://bibliotekanauki.pl/articles/80702.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: conference
vitamin C
oxidative stress
Chlorella vulgaris
unicellular alga
reactive oxygen species
abiotic stress
nutrient deficiency
hydrogen peroxide
antioxidant capacity
phosphate deficiency
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:: The effects of diversified phosphorus nutrition on the growth of oat (Avena sativa L.) and acid phosphatase activity
Autorzy:: Zebrowska, E.
Zujko, K.
Kuleszewicz, A.
Ciereszko, I.
Powiązania:: https://bibliotekanauki.pl/articles/57053.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Botaniczne
Opis:: We studied the effect of differential phosphorus (P) supply on the development of oat seedlings (Avena sativa L. ‘Arab’) as well as localization and activity of acid phosphatases in tissues and root exudates. Plants were grown for 1–3 weeks on nutrient media with inorganic phosphate (+P, control), reduced Pi (0.1 P), phytic acid (PA) as organic P source, and without P addition (−P), in standard conditions or in a split-root culture system. Phosphate starvation reduced shoot growth but increased root elongation and root/shoot ratio, whereas 0.1 P and PA oat plants had similar growth parameters to +P plants. The growth on −P medium significantly decreased Pi content in all tissues, but only a slight Pi decrease was observed in plants grown on 0.1 P and PA media or various split-root system conditions. Pi starvation led to an increase in acid phosphatase (APase) activity in root exudates when compared to +P, 0.1 P, and PA plant samples. APase activity was especially intensive in root cross sections in rhizodermis and around/in vascular tissues of −P plants. For plants grown on 0.1 P medium and on phytic acid, APase activity did not change when compared to the control. Three major isoforms of APases were detected in plant tissues (similar in all studied conditions, with a higher activity of one isoform under Pi deficit). Generally, lowered Pi content (0.1 P) was not stressful to oat plants for up to 3 weeks of culture. Oat plants grew equally well on nutrient media with Pi and on media with phytate, although phytate was considered not available for other plants. The oat plants activated mainly extracellular APases, but also intracellular enzymes, rather via nonlocal signals, to acquire Pi from external/ internal sources under Pi deficiency.
Źródło:: Acta Societatis Botanicorum Poloniae; 2018, 87, 1
0001-6977
2083-9480
Pojawia się w:: Acta Societatis Botanicorum Poloniae
Dostawca treści:: Biblioteka Nauki

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