Repozitorij Univerze v Novi Gorici

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Naslov:Linking root traits to copper exclusion mechanisms in Silene paradoxa L. (Caryophyllaceae)
Avtorji:Colzi, Ilaria (Avtor)
Pignattelli, Sara (Avtor)
Giorni, Elisabetta (Avtor)
Papini, Alessio (Avtor)
Gonnelli, Cristina (Avtor)
Datoteke:Gradivo nima datotek. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis: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.
Ključne besede:Root, Copper exclusion, Lignin, Callose, Tolerance to copper, Silene paradoxa
Leto izida:2015
Št. strani:1-15
Številčenje:390, 1-2
COBISS_ID:5611259 Povezava se odpre v novem oknu
URN:URN:SI:UNG:REP:RIMOEEKL
DOI:10.1007/s11104-014-2375-3 Povezava se odpre v novem oknu
Licenca:CC BY-NC-ND 4.0
To delo je dosegljivo pod licenco Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Število ogledov:1532
Število prenosov:0
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
Področja:Gradivo ni uvrščeno v področja.
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Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.

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Gradivo je del revije

Naslov:PLANT AND SOIL
Skrajšan naslov:PLANT SOIL
ISSN:1573-5036
Leto izida:2015

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