Quantitative elemental localisation in leaves and stems of nickel hyperaccumulating shrub Hybanthusfloribundus subsp. floribundus using micro-PIXE spectroscopy

Kachenko, Anthony; Singh, Balwant; Bhatia, Naveen P.; Siegele, Rainer

doi:10.1016/j.nimb.2007.11.053

Cited by 38 publications

(22 citation statements)

References 34 publications

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“…; Table ). The findings of previous investigations reporting on the elemental distribution in the stems and petioles of Ni hyperaccumulator plants (Mesjasz‐Przybylowicz et al ., , ,c; Küpper et al ., ; Bhatia et al ., ; McNear et al ., ; Kachenko et al ., ) are not consistent. Significant Ni enrichment in the phloem has so far only been reported from the stem of Senecio coronatus (Mesjasz‐Przybylowicz et al ., ).…”

Section: Discussionmentioning

confidence: 99%

“…In P. balgooyi , there was no gradient of Ni concentrations evident across the leaf axis, as was observed in B. coddii (Mesjasz‐Przybylowicz et al ., ) and Hybanthus floribundus subsp. floribundus (Kachenko et al ., ) where Ni concentrations were the highest in the leaf margins and the vascular bundles. Kachenko et al .…”

Section: Discussionmentioning

confidence: 99%

“…Kachenko et al . () suggested that such patterns (Ni preferential accumulation away from the chlorophyll‐rich mesophyll cells in the midrib area) could be a mechanism to minimize interference with photosynthesis. In P. balgooyi , the structures where Ni is mainly accumulated are directly above the photosynthetically active palisade mesophyll layer of the leaf.…”

Section: Discussionmentioning

confidence: 99%

“…New Phytologist (Mesjasz-Przybylowicz et al, 1994, 1997bK€ upper et al, 2001;Bhatia et al, 2004;McNear et al, 2005;Kachenko et al, 2008) are not consistent. Significant Ni enrichment in the phloem has so far only been reported from the stem of Senecio coronatus (Mesjasz- Przybylowicz et al, 1997b).…”

Section: Researchmentioning

confidence: 98%

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Extreme nickel hyperaccumulation in the vascular tracts of the tree Phyllanthus balgooyi from Borneo

et al. 2015

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SummaryPhyllanthus balgooyi (Phyllanthaceae), one of > 20 nickel (Ni) hyperaccumulator plant species known in Sabah (Malaysia) on the island of Borneo, is remarkable because it contains > 16 wt% Ni in its phloem sap, the second highest concentration of Ni in any living material in the world (after Pycnandra acuminata (Sapotaceae) from New Caledonia with 25 wt% Ni in latex).This study focused on the tissue-level distribution of Ni and other elements in the leaves, petioles and stem of P. balgooyi using nuclear microprobe imaging (micro-PIXE).The results show that in the stems and petioles of P. balgooyi Ni concentrations were very high in the phloem, while in the leaves there was significant enrichment of this element in the major vascular bundles. In the leaves, cobalt (Co) was codistributed with Ni, while the distribution of manganese (Mn) was different. The highest enrichment of calcium (Ca) in the stems was in the periderm, the epidermis and subepidermis of the petiole, and in the palisade mesophyll of the leaf.Preferential accumulation of Ni in the vascular tracts suggests that Ni is present in a metabolically active form. The elemental distribution of P. balgooyi differs from those of many other Ni hyperaccumulator plant species from around the world where Ni is preferentially accumulated in leaf epidermal cells.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Researchmentioning

confidence: 98%

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Extreme nickel hyperaccumulation in the vascular tracts of the tree Phyllanthus balgooyi from Borneo

et al. 2015

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“…The tissue‐level micro‐distribution of nickel has been elucidated in several hyperaccumulator species in Alyssum, Berkheya, Hybanthus, Noccaea, Phyllanthus and Senecio (for examples, see Mesjasz‐Przybylowicz et al ., , , , ; Broadhurst et al ., ; Küpper et al ., ; Kachenko et al ., ). In most hyperaccumulators nickel is preferentially accumulated in foliar epidermal cells, but in Berkheya coddii from South Africa it is found mainly in the mesophyll and vascular bundles (Mesjasz‐Przybylowicz et al ., ).…”

Section: Studying Hyperaccumulator Plantsmentioning

confidence: 99%

The discovery of nickel hyperaccumulation in the New Caledonian tree Pycnandra acuminata 40 years on: an introduction to a Virtual Issue

et al. 2018

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PIXE and metal hyperaccumulation: from soil to plants and insects

Mesjasz‐Przybyłowicz

Przybyłowicz

2011

X-Ray Spectrometry

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The status of micro-PIXE applications in investigations of ecophysiological aspects of the hyperaccumulation phenomenon in plants is reviewed. Measurements of elemental concentrations and distribution in organs, tissues and cells of plants hyperaccumulating Ni, Co, As, Mn, Zn and Cd, show that in most cases hyperaccumulated metals are stored in physiologically inactive tissues. However, some exceptions indicate that different physiological mechanisms are involved in metal transport, storage locations and detoxification. The influence of mycorrhiza on elemental concentration and distribution in the roots of the Ni-hyperaccumulator Berkheya coddii is also discussed. Several herbivorous insects have been found feeding exclusively on Ni-hyperaccumulating plants. A summary of micro-PIXE contribution to studies aimed at explanation of their ability to survive in such extreme conditions is given.

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Quantitative elemental localisation in leaves and stems of nickel hyperaccumulating shrub Hybanthusfloribundus subsp. floribundus using micro-PIXE spectroscopy

Cited by 38 publications

References 34 publications

Extreme nickel hyperaccumulation in the vascular tracts of the tree Phyllanthus balgooyi from Borneo

Extreme nickel hyperaccumulation in the vascular tracts of the tree Phyllanthus balgooyi from Borneo

The discovery of nickel hyperaccumulation in the New Caledonian tree Pycnandra acuminata 40 years on: an introduction to a Virtual Issue

PIXE and metal hyperaccumulation: from soil to plants and insects

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