Comparison of two serpentine species with different nickel tolerance strategies

Gabbrielli, Poberto; Pandolfini, Tiziana; Vergnano, Ornella; Palandri, Mariarosa

doi:10.1007/bf02851985

Cited by 129 publications

(65 citation statements)

References 15 publications

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“…As the W content in plant tissue increased the relative yield initially increased but decreased at higher tissue concentration of W (Figure 2). The decrement in root-shoot length and dry weight was probably due to reduced cellular turgor (Gabbrielli et al 1990) which inhibits cell enlargement (Aery andJagetiya 2000, Mali andAery 2008) and/or due to inhibition of cell division in the meristematic zone (Powell et al 1986). Adamakis et al (2008) showed that tungstate retarded seedling growth rate and stopped root elongation in Pisum sativum L. cv.…”

Section: Resultsmentioning

confidence: 99%

Effect of tungsten on growth, biochemical constituents, molybdenum and tungsten contents in wheat

Kumar¹,

Aery²

2011

Plant Soil Environ.

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The effect of various concentrations (3, 9, 27, 81, and 243 mg/kg) of tungsten (W) on growth performance, biochemical constituents and tungsten and molybdenum (Mo) contents in wheat was observed. Lower doses (up to 9 mg/kg) of tungsten showed promotory effects whereas higher doses retarded. An increment in growth, biomass, chlorophyll and carbohydrate contents was observed. Tungsten contents in root and shoot showed a very strong linear dependence on the soil applied W contents. Mo contents in plant tissue showed an increase with an increase in the W contents in plant tissue up to a threshold after which it showed an abrupt decrease. The activity of peroxidase enzyme decreased with lower application of W. Higher administration of tungsten (27-243 mg/kg) resulted in increased total phenol, free proline and activity of enzyme peroxidase.

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Section: Resultsmentioning

confidence: 99%

Effect of tungsten on growth, biochemical constituents, molybdenum and tungsten contents in wheat

Kumar¹,

Aery²

2011

Plant Soil Environ.

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“…Others have found ameliorative effects of Ca on metal toxicity (Gabbrielli & Pandolfini 1984;Gabbrielli et al 1990). Although we observed an increase in root length density and higher foliar and root Ca concentrations when Ca was added to barren soils, these were not accompanied by a biomass increase for Achillea or Bromus.…”

Section: Discussionmentioning

confidence: 99%

Species specific plant-soil interactions influence plant distribution on serpentine soils

et al. 2011

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Where serpentine soils exist, variation in soil properties affects plant species distribution at both coarse and fine spatial scales. The New Idria (California, USA) serpentine mass has barren areas, supporting only sparse shrub and tree islands, adjacent to areas of densely-vegetated serpentine chaparral. To identify factors limiting growth on barren relative to vegetated serpentine soils, we analyzed soils from barren, shrub-island within barren, and vegetated areas and foliage from shrubisland and vegetated areas. We also grew Ceanothus cuneatus (native evergreen shrub), Achillea millefolium (native perennial forb), and Bromus madritensis ssp. rubens (invasive annual grass) in soils from barren and vegetated areas amended factorially with N, K, and Ca in a pot study. In well-watered pots, biomass was greater by 5-, 14-, and 33-fold for Ceanothus, Achillea, and Bromus, respectively, on vegetated-area-collected soils than on barren-collected soils, indicating a strong soil chemistry effect. Although field soil data suggested nutrient deficiency and not heavy metal toxicity, pot study plant data indicated otherwise for two of the three species. On barren-collected soils, only Ceanothus responded positively to added N and Ca and did not show greater foliar Mg or heavy metal (Fe, Ni, Cr, Co, Zn) concentrations than on vegetated-area-collected soils. Ceanothus maintained lower root Mg and heavy metal (Fe, Ni, Cr, Co) concentrations on barren soils and translocated less heavy metal (Fe, Ni, Cr, Co, Mn, Cu) from roots to foliage than Achillea and Bromus. Achillea and Bromus showed significant log-log biomass relationships with foliar Ca:Mg (+), Mg (-), and heavy metals (Fe, Ni, Cr, Co, Mn, Cu, Zn) (-), while Ceanothus showed relationships only with Ca: Mg (+) and Mg (-). The New Idria barren-vegetated pattern appears to be maintained by different factors for different species or functional types-low Ca:Mg ratios on barrens for all species tested, high heavy metal concentrations for Achillea and Bromus, and low macronutrient (N) concentrations for Ceanothus. Combined data from this and other studies suggest high heavy metal concentrations more strongly affect Plant Soil (2011) herbaceous than woody species, contributing to variation in species distribution on serpentine soils.

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“…As has been shown to inhibit the lengths of root and shoot in plants [2,28]. The reduction in growth may be due to negative effects of As on cell metabolism, such as energy being channeled into the production of stress-related substances like antioxidases [2,35] and phytochelatins [36,37].Growth inhibition at higher concentrations may be linked with lower mitotic activity in the root meristematic zone or the inhibition of cell enlargement in the elongation zone as a consequence of decreased cellular turgor [30,38]. Root lengthening is controlled by the cell division rate in the apical meristems and by expansion and elongation of the newly formed cells and is considered to be one of the most sensitive endpoints of plant toxicity, where a dose-dependent inhibition of root growth (and of the whole plant), following the administration of relatively high doses of As, has been reported for wheat [26], mung bean [39], Arabidopsis thaliana [40], broad bean [41], and rice [29,42].…”

Section: Discussionmentioning

confidence: 99%

Screening Indian Mustard Genotypes for Phytoremediating Arsenic‐Contaminated Soils

Ansari

Shao

Umar

et al. 2012

CLEAN Soil Air Water

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Ten Indian mustard (Brassica juncea L.) genotypes were screened for their phytoremediation potential for arsenic (As) contaminated water under laboratory-controlled conditions. The genotypes were grown in a hydroponic chamber for 20 days in 250-mL beakers containing As-contaminated water. During plant development, changes in plant growth, biomass, and total As were evaluated. Of the 10 genotypes (Pusa Agrani, BTO, Pusa Kranti, Pusa Bahar, Pusa Bold, Pusa Basant, Pusa Jai Kisan, Arka Vardhan, Varuna, and Vaibhav) Pusa Jai Kisan was the most effective in phytoremediating Ascontaminated water under hydroponic conditions. This will provide new information for Indian mustard genotypes for phytoremediating As-contaminated soils.

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Comparison of two serpentine species with different nickel tolerance strategies

Cited by 129 publications

References 15 publications

Effect of tungsten on growth, biochemical constituents, molybdenum and tungsten contents in wheat

Effect of tungsten on growth, biochemical constituents, molybdenum and tungsten contents in wheat

Species specific plant-soil interactions influence plant distribution on serpentine soils

Screening Indian Mustard Genotypes for Phytoremediating Arsenic‐Contaminated Soils

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