Repository of University of Nova Gorica

Show document
A+ | A- | Help | SLO | ENG

Title:Linking root traits to copper exclusion mechanisms in Silene paradoxa L. (Caryophyllaceae)
Authors:ID Colzi, Ilaria, Department of Biology, Università di Firenze, via Micheli 1-3, 50121 Florence, Italy (Author)
ID Pignattelli, Sara, Department of Biology, Università di Firenze, via Micheli 1-3, 50121 Florence, Italy (Author)
ID Giorni, Elisabetta, Department of Biology, Università di Firenze, via Micheli 1-3, 50121 Florence, Italy (Author)
ID Papini, Alessio, Department of Biology, Università di Firenze, via Micheli 1-3, 50121 Florence, Italy (Author)
ID Gonnelli, Cristina, Department of Biology, Università di Firenze, via Micheli 1-3, 50121 Florence, Italy (Author)
Files: This document has no files that are freely available to the public. This document may have a physical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Language:English
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:Copper is one of the most important pollutants in mine- contaminated soils. This study tests the response in a sensitive population vs a tolerant one of the model species Silene paradoxa in order to understand the general mechanisms of tolerance at the micromorphological and ultrastructural level. Two populations of Silene paradoxa were grown in hydroponics and exposed to different CuSO4 treatments. The roots were investigated with light, fluorescence and transmission electron microscope. Callose and lignin were spectrophotometrically determined. The tolerant population constitutively possessed a higher amount of mucilage and was able to reduce the length of the zone between the apex and the first lignified tracheids. Callose production decreased. It did not show remarkable copper-induced ultrastructural modifications, apart from the presence of precipitates in the tangential walls. The sensitive population showed huge nucleoli with a spongy periphery in the central cylinder together with the presence of electrondense granules in the mitochondria. Plastids were rarely observed and generally very electrondense and elongated. In the copper tolerant population of S. paradoxa some of the root traits concurring to generate metal-excluding roots were suggested to be mucilage and lignin production and the reduction of the subapical root zone.
Keywords:Root, Copper exclusion, Lignin, Callose, Tolerance to copper, Silene paradoxa
Year of publishing:2015
Number of pages:1-15
Numbering:1-2, 390
PID:20.500.12556/RUNG-5127-250f9ffd-19f8-b159-2479-7fa0493ec61b New window
COBISS.SI-ID:5611259 New window
DOI:10.1007/s11104-014-2375-3 New window
NUK URN:URN:SI:UNG:REP:RIMOEEKL
Publication date in RUNG:20.04.2020
Views:2864
Downloads:0
Metadata:XML RDF-CHPDL DC-XML DC-RDF
:
Copy citation
  
Average score:(0 votes)
Your score:Voting is allowed only for logged in users.
Share:Bookmark and Share


Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

Record is a part of a journal

Title:PLANT AND SOIL
Shortened title:PLANT SOIL
Year of publishing:2015
ISSN:1573-5036

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:20.04.2020

Back