Heavy Metal Tolerance in Typha Latifolia without the Evolution of Tolerant Races

McNaughton, S. J.; Folsom, Todd C.; Lee, T.; Park, F.; Price, Clifford W.; Roeder, Donald R.; Schmitz, Juliano Dutra; Stockwell, Craig A.

doi:10.2307/1940369

Cited by 105 publications

(46 citation statements)

References 13 publications

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“…Such constitutive tolerance has previously been found in a few other species. In Typha latifolia, plants collected from a Zn smelter site did not exhibit higher tolerance than control plants from uncontaminated sites (McNaughton et al, 1974 ;Taylor & Crowder, 1984). Similarly, Thlaspi caerulescens, subsp.…”

Section: Constitutive Metal Tolerance In Arabidopsis Hallerimentioning

confidence: 82%

Zinc tolerance and accumulation in metallicolous and nonmetallicolous populations of Arabidopsis halleri (Brassicaceae)

et al. 2000

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Zinc tolerance was investigated in five populations of Arabidopsis halleri (syn. : Cardaminopsis halleri) raised from seeds collected from contaminated and uncontaminated sites. Tolerance was measured by determining the concentration which inhibited root growth (EC "!! ). A. halleri populations from contaminated and uncontaminated sites were found to be Zn-tolerant compared with the Zn-nontolerant species Arabidopsis thaliana and A. lyrata subsp. petraea. At very high Zn concentrations, populations of A. halleri from uncontaminated sites were slightly less Zn-tolerant than those from contaminated sites. These observations support the hypothesis that in A. halleri, Zn tolerance is largely a constitutive property. One population from an uncontaminated site and one population from a contaminated site were studied for Zn uptake. Zinc content was measured in shoots and roots using a colorimetric test under laboratory conditions. The results showed that whatever their origin, individuals from both populations are Zn accumulators compared with the nonaccumulator species A. thaliana. Moreover, the population from the uncontaminated area accumulated Zn in its shoots and roots more quickly than the population from the contaminated site. These results suggest that, in A. halleri, Zn accumulation to very high concentration is a constitutive property.

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Section: Constitutive Metal Tolerance In Arabidopsis Hallerimentioning

confidence: 82%

Zinc tolerance and accumulation in metallicolous and nonmetallicolous populations of Arabidopsis halleri (Brassicaceae)

et al. 2000

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“…Antonovics, Bradshaw & Turner (1971) indicated that there is no clear evidence that a species has constitutional tolerance to heavy metals: evolution has invariably occurred when contaminated habitats are colonized. However, T. latifolia has been reported to show some constitutional tolerance to metals throughout its range (McNaughton et al, 1974;Taylor & Crowder, 1984). Metal tolerance in populations of T. latifolia from metal-contaminated and uncontaminated sites were compared (Zn: McNaughton et al, 1974;Cu and Ni: Taylor & Crowder, 1984) using clonal material generated from rhizome fragments.…”

Section: Introductionmentioning

confidence: 99%

“…However, T. latifolia has been reported to show some constitutional tolerance to metals throughout its range (McNaughton et al, 1974;Taylor & Crowder, 1984). Metal tolerance in populations of T. latifolia from metal-contaminated and uncontaminated sites were compared (Zn: McNaughton et al, 1974;Cu and Ni: Taylor & Crowder, 1984) using clonal material generated from rhizome fragments. Populations from metal-contaminated sites did not show higher metal tolerance than populations from control sites.…”

Section: Introductionmentioning

confidence: 99%

Zinc, lead and cadmium tolerance, uptake and accumulation by Typha latifolia

et al. 1997

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SUMMARYZinc, lead and cadmium tolerance in four populations of Typha latifolia raised from seed collected from metalcontaminated and uncontaminated sites were investigated. Metal concentrations in natural plant populations showed that Zn, Pb and Cd in the leaves were maintained at low levels (Zn: 22-122, Pb: 4-7-40 and Cd: 0-2-0-8 //g g~^ d. wt), although concentrations of these metals in the associated soil-sediments (total concentrations of Zn: 86-3009, Pb: 26-18894 and Cd: l-4-26//gg-i d. wt) and in the roots (Zn: 46-946, Pb: 25-3628 and Cd: 10-17//g g"^ d. wt) varied widely. Some differences were found between metal-contaminated and uncontaminated populations in terms of metal uptake under controlled conditions. Seedlings from metal-contaminated populations accumulated considerably more metals (up to nearly twice as much Zn and Pb and three times as much Cd) in roots than the uncontaminated population in a pot trial. In general, however, different populations of T. latifolia showed similar growth responses (the longest leaf elongation, the longest root elongation, shoot and root d. wt), metal uptake and indices of metal tolerance when seedlings were grown in the same metal treatment solutions or in the same metal-contaminated media under laboratory conditions. The data do not support the hypothesis that populations from metal-contaminated sites have evolved tolerance to Zn, Pb and Cd, but rather that T. latifolia shows constitutional tolerance.

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“…Bradshaw, 1965;McNaughton et al, 1974). This paper explores an additional hypothesis which suggests that a high degree of morphological plasticity is an integral part of the mechanism of resource acquisition in productive environments.…”

Section: Introductionmentioning

confidence: 99%

Morphological Plasticity and Mineral Nutrient Capture in Two Herbaceous Species of Contrasted Ecology

1987

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SUMMARYDevelopmental plasticity and nitrogen capture were compared in Agrostis stolonifera and Scirpus sylvaticus grown in compartmentalized root growth arenas which allowed simulation of the spatial and temporal patchiness distinguishing the conditions of mineral nutrient supply associated with fertile and infertile soils.Despite the small root system, higher rates of nitrogen capture and dry matter production were achieved by A. stolonifera at both high and low external concentrations of mineral nutrients. This species also showed a marked ability rapidly to adjust partitioning of growth between parts of the root system, thus allowing local proliferations of fine roots into sectors of high mineral nutrient concentration. Under the conditions of the experiment, this form of plasticity was only weakly developed in S. sylvaticus, which instead maintained a large but relatively unresponsive root mass under each experimental treatment.It is concluded that the high plasticity observed in A. stolonifera allows the dynamic exploitation of fertile soil by competing roots. It is predicted that the more stable pattern of root development in S. sylvaticus will confer a selective advantage in environments where mineral nutrients are strongly limiting upon productivity and become available in temporally unpredictable pulses.

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Heavy Metal Tolerance in Typha Latifolia without the Evolution of Tolerant Races

Cited by 105 publications

References 13 publications

Zinc tolerance and accumulation in metallicolous and nonmetallicolous populations of Arabidopsis halleri (Brassicaceae)

Zinc tolerance and accumulation in metallicolous and nonmetallicolous populations of Arabidopsis halleri (Brassicaceae)

Zinc, lead and cadmium tolerance, uptake and accumulation by Typha latifolia

Morphological Plasticity and Mineral Nutrient Capture in Two Herbaceous Species of Contrasted Ecology

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