Abstract
The black color of seeds is a ubiquitous trait among plants. Black pigments are caused by polyphenolic polymeric compounds called melanins. The study of plant melanin is hampered because of its complex structure and chemical inertness. At the same time, an adaptive role of black pigments in unfavorable environments has been previously demonstrated. The aim of the current work was to compare near-isogenic barley lines carrying different alleles of the Blp locus controlling accumulation of melanins in the hull and grain pericarp under salinity, drought and cadmium toxicity. It was demonstrated that the lines did not differ in germination rate while they responded differently to stress exposures at the seedling stage. The pronounced decline in root and shoot length in the black-spiked line compared with the yellow-spiked one was observed under drought stress conditions, while under salinity and cadmium toxicity, slightly increased values of the relative shoot length of the black-and yellow-spiked lines were observed, respectively. The data obtained demonstrated that neither the Blp gene nor black pigmentation controlled by this gene confer any advantages on barley plants at the seedling stage under stress conditions tested.
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Claims 5
Claim · model-written summary
Near-isogenic barley lines with different Blp alleles did not differ in germination rate.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Material
- near-isogenic barley linese0
- Outcome
- germination ratee1
- Direction
- did not differe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“compare near-isogenic barley lines carrying different alleles of the Blp locus controlling accumulation of melanins in the hull and grain pericarp under salinity, drought and cadmium toxicity”
e1“the lines did not differ in germination rate while they responded differently to stress exposures at the seedling stage”
Claim · model-written summary
Under drought, the black-spiked line showed a pronounced decline in root and shoot length compared with the yellow-spiked line.
- Taxon
- barleyHordeum vulgaree0
- Material
- black-spiked linee2
- Treatment
- drought stress conditionse2
- Gene
- Blp locuse0
- Outcome
- root and shoot lengthe2
- Direction
- pronounced declinee2
- Comparator
- yellow-spiked onee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compare near-isogenic barley lines carrying different alleles of the Blp locus controlling accumulation of melanins in the hull and grain pericarp under salinity, drought and cadmium toxicity”
e2“The pronounced decline in root and shoot length in the black-spiked line compared with the yellow-spiked one was observed under drought stress conditions”
Claim · model-written summary
Under salinity, relative shoot length of the black- and yellow-spiked barley lines increased slightly.
- Taxon
- barleyHordeum vulgaree0
- Material
- black-and yellow-spiked linese3
- Treatment
- salinitye3
- Outcome
- relative shoot lengthe3
- Direction
- slightly increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compare near-isogenic barley lines carrying different alleles of the Blp locus controlling accumulation of melanins in the hull and grain pericarp under salinity, drought and cadmium toxicity”
e3“while under salinity and cadmium toxicity, slightly increased values of the relative shoot length of the black-and yellow-spiked lines were observed, respectively”
Claim · model-written summary
Under cadmium toxicity, relative shoot length of the black- and yellow-spiked barley lines increased slightly.
- Taxon
- barleyHordeum vulgaree0
- Material
- black-and yellow-spiked linese3
- Treatment
- cadmium toxicitye3
- Outcome
- relative shoot lengthe3
- Direction
- slightly increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“compare near-isogenic barley lines carrying different alleles of the Blp locus controlling accumulation of melanins in the hull and grain pericarp under salinity, drought and cadmium toxicity”
e3“while under salinity and cadmium toxicity, slightly increased values of the relative shoot length of the black-and yellow-spiked lines were observed, respectively”
Claim · model-written summary
The Blp gene and black pigmentation confer no advantage on barley seedlings under the stress conditions tested.
- Taxon
- barley plantsHordeum vulgaree4
- Gene
- Blp genee4
- Outcome
- advantages on barley plants at the seedling stage under stress conditions testede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The data obtained demonstrated that neither the Blp gene nor black pigmentation controlled by this gene confer any advantages on barley plants at the seedling stage under stress conditions tested”
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