Abstract
In this study, nickel tolerance (NiSO4.7H2O) of some Turkish national barley (Hordeum vulgare L.) genotypes (Bülbül-89, Kalaycı-97, Karatay-94, Larende, Tarm-92, Tokak-157/37, Yesevi-93 and Zeynel Ağa) was investigated. Barley genotypes were exposed to different nickel concentrations [0 mM (control), 250, 500, 1000, 1500, and 2000 ppm]. Nickel toxicity significantly inhibited root and coleoptile growth in all barley genotypes in a concentration-dependent manner. However, root growth was much more inhibited by nickel applications in comparison with coleoptile growth, probably due to a higher level of sensitivity of root meristems against nickel toxicity or direct contact of roots with nickel ions in the growth medium. Root growth in the genotype Karatay-94 and coleoptile growth in the genotype Yesevi-93 was more remarkably reduced by nickel toxicity. Root and coleoptile growth in the genotypes Larende and Kalaycı-97 were less affected under nickel toxicity, respectively. In addition, nickel toxicity disturbed water relations in barley genotypes dependent on the organ type, as demonstrated by more severe inhibition in root fresh weight as compared to coleoptile fresh weight. These results could show that nickel toxicity reduced water uptake from growth medium in barley genotypes used in this study. Changes in dry weight of roots and coleoptiles indicated that nickel toxicity more severely decreased biomass accumulation in roots of barley genotypes. The calculated tolerance indices demonstrated that the genotype Kalaycı-97 is the most tolerant to nickel toxicity, while the genotype Karatay-94 is the most susceptible one.
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Claims 10
Claim · model-written summary
Nickel inhibited barley root and coleoptile growth in a concentration-dependent manner.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- Nickel toxicitye0
- Outcome
- root and coleoptile growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Nickel toxicity significantly inhibited root and coleoptile growth in all barley genotypes in a concentration-dependent manner.”
Claim · model-written summary
Nickel inhibited roots more than coleoptiles.
Not reportedTaxon
Verbatim
e0“root growth was much more inhibited by nickel applications in comparison with coleoptile growth”
Claim · model-written summary
Karatay-94 root growth was especially reduced by nickel.
Not reportedTaxonComparator
Verbatim
e0“Root growth in the genotype Karatay-94 and coleoptile growth in the genotype Yesevi-93 was more remarkably reduced by nickel toxicity.”
Claim · model-written summary
Yesevi-93 coleoptile growth was especially reduced by nickel.
Not reportedTaxonComparator
Verbatim
e0“Root growth in the genotype Karatay-94 and coleoptile growth in the genotype Yesevi-93 was more remarkably reduced by nickel toxicity.”
Claim · model-written summary
Larende root growth was less affected by nickel.
Not reportedTaxonComparator
Verbatim
e0“Root and coleoptile growth in the genotypes Larende and Kalaycı-97 were less affected under nickel toxicity, respectively.”
Claim · model-written summary
Kalaycı-97 coleoptile growth was less affected by nickel.
Not reportedTaxonComparator
Verbatim
e0“Root and coleoptile growth in the genotypes Larende and Kalaycı-97 were less affected under nickel toxicity, respectively.”
Claim · model-written summary
Nickel inhibited root fresh weight more severely than coleoptile fresh weight.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- nickel toxicitye0
- Outcome
- root fresh weighte0
- Direction
- inhibitione0
- Comparator
- coleoptile fresh weighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nickel toxicity disturbed water relations in barley genotypes dependent on the organ type, as demonstrated by more severe inhibition in root fresh weight as compared to coleoptile fresh weight.”
Claim · model-written summary
Nickel more severely decreased root biomass accumulation.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- nickel toxicitye0
- Outcome
- biomass accumulation in rootse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nickel toxicity more severely decreased biomass accumulation in roots of barley genotypes.”
Claim · model-written summary
Kalaycı-97 was the most nickel tolerant genotype.
Not reportedTaxon
Verbatim
e0“the genotype Kalaycı-97 is the most tolerant to nickel toxicity”
Claim · model-written summary
Karatay-94 was the most nickel susceptible genotype.
Not reportedTaxon
Verbatim
e0“the genotype Karatay-94 is the most susceptible one”
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