Life history variation in Thlaspi caerulescens
نویسندگان
چکیده
منابع مشابه
Life history traits of the pseudometallophyte Thlaspi caerulescens in natural populations from Northern Europe.
We examined recruitment, survival, life cycle and fecundity of two metallicolous (M, on metalliferous calamine soils) and two non-metallicolous (NM, on normal soils) populations of Thlaspi caerulescens in Belgium and Luxemburg. In each population, permanent plots were monitored over two reproductive seasons. In M populations, plots were located in two contrasting environments (grass versus grov...
متن کاملDistribution of cadmium in leaves of Thlaspi caerulescens.
Knowledge of the intracellular distribution of Cd in leaves is necessary in order to understand the mechanisms of hyperaccumulation in Thlaspi caerulescens. Ganges and Prayon, two ecotypes accumulating Cd to different levels, were grown in nutrient medium containing varying concentrations (0, 5, 10, 50, and 100 microM) of Cd. Several different approaches were combined in this study to (i) valid...
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Thlaspi caerulescens J. & C. Presl is a distinctive metallophyte of central and western Europe that almost invariably hyperaccumulates Zn to > 1.0% of shoot dry biomass in its natural habitats, and can hyperaccumulate Ni to > 0.1% when growing on serpentine soils. Populations from the Ganges region of southern France also have a remarkable ability to accumulate Cd in their shoots to concentrati...
متن کاملReciprocal grafting separates the roles of the root and shoot in zinc hyperaccumulation in Thlaspi caerulescens
* The extreme phenotype of zinc (Zn) hyperaccumulation, which is found in several Brassicaceae species, is determined by mechanisms that promote elevated Zn tolerance and high Zn accumulation in shoots. * We used reciprocal grafting between a Zn hyperaccumulator, Thlaspi caerulescens, and a Zn nonaccumulator, Thlaspi perfoliatum, to determine the relative importance of roots and shoots in Zn hy...
متن کاملZinc and cadmium accumulation in controlled crosses between metallicolous and nonmetallicolous populations of Thlaspi caerulescens (Brassicaceae)
• Growth and heavy metal (Zn and Cd) hyperaccumulation were investigated in metallicolous and nonmetallicolous Mediterranean populations of Thlaspi caerulescens (Brassicaceae), and in offspring from controlled crosses between these populations. • Seeds for the growth and crossing experiments were collected from a number of sites varying in heavy metal contamination. Tissue Zn and Cd content was...
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ژورنال
عنوان ژورنال: New Phytologist
سال: 2006
ISSN: 0028-646X,1469-8137
DOI: 10.1111/j.1469-8137.2006.01948.x