Abstract
Nickel speciation in a nickel hyperaccumulating plant ( Sebertia acuminata ) and its associated soil of southern New Caledonia was studied using various analytical methods. The soil is formed of iron oxides (goethite, hematite), which contain almost all the nickel. The available nickel is probably linked to the organic matter in the litter. Sebertia acuminata , acts as a nickel pump, and concentrates the metal in its leaves. It partitions nickel and silica; nickel is concentrated in the cells (probably in the vacuoles) as organometallic complexes, whereas silica forms the framework of the cells, and the phytolithes. A thorough study of these plants seems essential in order to define the soil–plant relations, and to propose appropriate ways for ecological restoration.
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Claims 5
Claim · model-written summary
Sebertia acuminata concentrates nickel in its leaves.
- Taxon
- Sebertia acuminata
Pycnandra acuminatat0 - Organ / stage
- leavese1
- Compound
- nickele1
- Outcome
- concentrates the metale1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nickel speciation in Sebertia acuminata, a plant growing on a lateritic soil of New Caledonia”
e1“Sebertia acuminata , acts as a nickel pump, and concentrates the metal in its leaves”
Claim · model-written summary
Nickel is concentrated in the cells of Sebertia acuminata as organometallic complexes, probably in the vacuoles.
- Taxon
- Sebertia acuminataPycnandra acuminatat0
- Organ / stage
- cellse2
- Compound
- organometallic complexese2
- Outcome
- nickel is concentratede2
- Qualifier
- probably in the vacuolese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nickel speciation in Sebertia acuminata, a plant growing on a lateritic soil of New Caledonia”
e2“nickel is concentrated in the cells (probably in the vacuoles) as organometallic complexes”
Claim · model-written summary
Silica forms the framework of the cells and the phytoliths of Sebertia acuminata, partitioned away from nickel.
- Taxon
- Sebertia acuminataPycnandra acuminatat0
- Organ / stage
- phytolithese3
- Compound
- silicae3
- Outcome
- silica forms the framework of the cellse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nickel speciation in Sebertia acuminata, a plant growing on a lateritic soil of New Caledonia”
e3“whereas silica forms the framework of the cells, and the phytolithes”
Claim · model-written summary
Available nickel in the soil is probably linked to organic matter in the litter of Sebertia acuminata sites.
- Taxon
- Sebertia acuminataPycnandra acuminatat0
- Compound
- organic mattere4
- Outcome
- available nickele4
- Qualifier
- probablye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nickel speciation in Sebertia acuminata, a plant growing on a lateritic soil of New Caledonia”
e4“The available nickel is probably linked to the organic matter in the litter”
Claim · model-written summary
Iron oxides in the soil under Sebertia acuminata contain almost all the nickel.
- Taxon
- Sebertia acuminataPycnandra acuminatat0
- Compound
- iron oxidese5
- Outcome
- contain almost all the nickele5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Nickel speciation in Sebertia acuminata, a plant growing on a lateritic soil of New Caledonia”
e5“The soil is formed of iron oxides (goethite, hematite), which contain almost all the nickel”