onr:"swepub:oai:DiVA.org:oru-625"
Sökning: onr:"swepub:oai:DiVA.org:oru-625" > Vitamin B6 as a pot...
- 1 av 1
- Föregående post
- Nästa post
- Till träfflistan
| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 03546nam a2200421 4500 | |
| 001 | oai:DiVA.org:oru-625 | |
| 003 | SwePub | |
| 008 | 060918s2006 | |||||||||||000 ||eng| | |
| 020 | a 9176684970q print | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-6252 URI |
| 040 | a (SwePub)oru | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a vet2 swepub-contenttype |
| 072 | 7 | a dok2 swepub-publicationtype |
| 100 | 1 | a Ristilä, Mikaelu Örebro universitet,Institutionen för naturvetenskap4 aut0 (Swepub:oru)mlra |
| 245 | 1 0 | a Vitamin B6 as a potential antioxidant :b a study emanating from UV-B-stressed plants |
| 264 | 1 | a Örebro :b Örebro universitetsbibliotek,c 2006 |
| 300 | a 73 s. | |
| 338 | a print2 rdacarrier | |
| 490 | 0 | a Örebro Studies in Life Science,x 1653-3100 ;v 3 |
| 520 | a Increased influx of solar UV-B radiation (280-320 nm), due to a decreasing stratospheric ozone layer, impacts severely on plants. Some of the UV-B effects on plants are related to stress induced by produced reactive oxygen species (ROS). Pyridoxine (vitamin B6) has been reported to be a potential quencher of ROS.Previous studies have shown that the PDX1.3 gene (encoding a key enzyme in vitamin B6 biosynthesis) is up-regulated by UV-B. We showed that this up-regulation also occurs at the protein level in UV-B exposed Col-0 wild-type plants. Studies performed using pdx1 knock-out mutants of Arabidopsis thaliana showed elevated transcripts levels for LHCB1*3 and PR-5 compared with the Col-0 wild-type. The pdx1 knock-out mutants showed an increased sensitivity towards H2O2-stress, but no increased sensitivity towards low dose UV-B-stress.To study the postulated role of pyridoxine as quencher of ROS in more detail, both theoretical and experimental studies were performed. Theoretical and experimental UV absorption spectra obtained at different protonation/deprotonation states of pyridoxine showed a very close resemblance at low and high pH. However, for the computational studies at physiological pH addition of counterions were required to accurately describe the experimental spectra.When theoretically studying the reactivity of pyridoxine towards three different ROS, .OH, .OOH and .O2-, the hydroxyl radical (.OH) was shown to be the most reactive species, while the superoxide radical (.O2-) showed no reactivity towards pyridoxine.In order to study the role of G-proteins in UV-B signal transduction pathways, UV-B irradiated G-protein mutants of Arabidopsis thaliana were studied. The regulation of the PDX1.3 gene was not affected in the G-protein mutants, regardless of the developmental stage of the plant. However, the expression of CHS was affected in the Ga subunit mutants. | |
| 650 | 7 | a NATURVETENSKAPx Kemi0 (SwePub)1042 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Chemical Sciences0 (SwePub)1042 hsv//eng |
| 653 | a Arabidopsis | |
| 653 | a UV-B irradiation | |
| 653 | a pyridoxine | |
| 653 | a vitamin B6 | |
| 653 | a ROS | |
| 653 | a Chemistry | |
| 653 | a Kemi | |
| 653 | a Chemistry | |
| 653 | a Kemi | |
| 700 | 1 | a Strid, Åke,c Professoru Örebro universitet,Institutionen för naturvetenskap4 ths |
| 700 | 1 | a Eriksson, Leif,c Professoru Örebro universitet,Institutionen för naturvetenskap4 ths |
| 700 | 1 | a Hideg, Éva,c Professoru Institute of plant biology, Biological research center, Szeged, Ungern4 opn |
| 710 | 2 | a Örebro universitetb Institutionen för naturvetenskap4 org |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-625 |
Hitta via bibliotek
- Vitamin B6 as a potential antioxidant a study emanating from UV-B-stressed plant... (Sök publikationen i LIBRIS)
Till lärosätets databas
- 1 av 1
- Föregående post
- Nästa post
- Till träfflistan
Hitta mer i SwePub
- Av författaren/redakt...
- Ristilä, Mikael
- Strid, Åke, Prof ...
- Eriksson, Leif, ...
- Hideg, Éva, Prof ...
- Om ämnet
-
- NATURVETENSKAP
- NATURVETENSKAP
- och Kemi
- Delar i serien
- Örebro Studies i ...
- Av lärosätet
- Örebro universitet
Sök utanför SwePub
- Sök vidare i:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - Nationella bibliotekssystem
- LIBRIS.kb.se
