Faculty of Agriculture and Life Sciences, Maribor (FKMB)
-
Antioxidative response patterns of Norway spruce bark to low-density Ceratocystis polonica inoculationUrbanek Krajnc, Andreja ...Temporal courses of individual phenolics, thiols and ascorbate were studied in Norway spruce phloem over a 5-month period after inoculation at low density with Ceratocystis polonica. The initial ... reaction of Norway spruce 3 days after inoculation was characterised by significantly increased isorhapontin and taxifolin concentrations, accompanied by significantly lowered catechin contents. On later sampling dates, catechin concentrations within infected bark increased until September. The slightly accumulated astringin contents in April and May diminished at later sampling dates in response to infection. The isorhapontin levels strongly raised in April and were slightly lowered from June onwards. Compared to the controls, taxifolin concentrations were higher in the infected samples showing a double peak with maxima in April and June. The taxifolin values eased later but remained above the control levels. The initial response of the ascorbate%glutathione system to fungal infection was characterised by a significantly more oxidised glutathione pool, slightly more reduced ascorbate system and by higher glutathione reductase activity. Three weeks later an accumulation of thiols was observed, whereas total ascorbate was significantly lowered and the ascorbate redox state shifted towards more oxidised values. Until the middle of July a gradual increase of total glutathione was determined within the infected bark, which was accompanied by significantly increased cysteine contents, higher glutathione reductase activity, but significantly lowered total ascorbate contents. The increased pressure on the ascorbate system reflects its interaction with phenolics, as ascorbate is needed for reducing the phenoxyl radicals formed during pathogen defence.Source: Trees. - ISSN 0931-1890 (Vol. 28, iss. 4, 2014, str. 1145-1160)Type of material - article, component partPublish date - 2014Language - englishCOBISS.SI-ID - 3723052
Author
Urbanek Krajnc, Andreja |
Novak, Metka |
Šelih, Mateja |
Kraševec, Nada |
Lešnik, Mario |
Šamec, Neja |
Komel, Radovan
Topics
antioxidant defence system |
ascorbate |
glutathione |
phenolics |
Picea abies |
sap flow
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|---|
Urbanek Krajnc, Andreja | 28251 |
Novak, Metka | 32116 |
Šelih, Mateja | 37816 |
Kraševec, Nada | 00385 |
Lešnik, Mario | 13492 |
Šamec, Neja | 33735 |
Komel, Radovan | 06135 |
Source: Personal bibliographies
and: SICRIS
Select pickup location:
Material pickup by post
Delivery address:
Address is missing from the member's data.
The address retrieval service is currently unavailable, please try again.
By clicking the "OK" button, you will confirm the pickup location selected above and complete the reservation process.
By clicking the "OK" button, you will confirm the above pickup location and delivery address, and complete the reservation process.
By clicking the "OK" button, you will confirm the address selected above and complete the reservation process.
Notification
Automatic login and reservation service currently not available. You can reserve the material on the Biblos portal or try again here later.
Subject headings in COBISS General List of Subject Headings
Select pickup location
The material from the parent unit is free. If the material is delivered to the pickup location from another unit, the library may charge you for this service.
Pickup location | Material status | Reservation |
---|
Reservation in progress
Please wait a moment.
Reservation was successful.
Reservation failed.
Reservation...
Membership card:
Pickup location:
JUNE and SEPTEMBER
Monday - Friday: from 8.00 to 14.00
JULY and AUGUST
Monday - Friday: from 8.00 to 13.00
Contact mail:knjiznica.fkbv@um.si