Abstract
Cold adaptation of winter wheat (Triticum aestivum L.) seedlings was investigated under excessive zinc content (1000 μM) in the root medium. The ability to adapt to chilling temperatures (4°C) in seedlings exposed over seven days to excessive Zn concentrations was lower than in seedlings exposed to optimal composition of mineral nutrients. The impaired adaptation capacity was evident from the lowered content of photosynthetic pigments in leaves, the decreased stomatal conductance, and the reduced water content in shoot tissues. The negative influence of low temperature on plant physiological parameters was enhanced with the prolongation of cold exposure under Zn excess in the root medium, unlike the alleviation of cold-induced disorders during prolonged chilling under optimal Zn concentration (2 μM). Based on this study, we propose that inhibition of photosynthesis and the disturbance of plant water balance are the main factors that impair the low-temperature adaptation of seedlings exposed to high zinc concentrations.
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Claims 7
Claim · model-written summary
Excess zinc reduced seedling adaptation to chilling relative to optimal nutrition.
- Taxon
- winter wheat
Triticum aestivumt0 - Treatment
- excessive Zn concentrationse0
- Outcome
- ability to adapt to chilling temperaturese0
- Direction
- lowere0
- Value
- 4°Ce0
- Comparator
- optimal composition of mineral nutrientse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ability to adapt to chilling temperatures (4°C) in seedlings exposed over seven days to excessive Zn concentrations was lower than in seedlings exposed to optimal composition of mineral nutrients.”
t0“winter wheat”
Claim · model-written summary
Excess zinc lowered leaf photosynthetic pigment content during cold adaptation.
- Taxon
- winter wheatTriticum aestivumt0
- Organ / stage
- leavese0
- Treatment
- excessive Zinc Contentt0
- Outcome
- content of photosynthetic pigmentse0
- Direction
- lowerede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The impaired adaptation capacity was evident from the lowered content of photosynthetic pigments in leaves”
t0“Low-Temperature Adaptation of Winter Wheat Seedlings under Excessive Zinc Content in the Root Medium”
Claim · model-written summary
Excess zinc decreased stomatal conductance during cold adaptation.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- Excessive Zinc Contentt0
- Outcome
- stomatal conductancee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the decreased stomatal conductance”
t0“Low-Temperature Adaptation of Winter Wheat Seedlings under Excessive Zinc Content in the Root Medium”
Claim · model-written summary
Excess zinc reduced water content of shoot tissues during cold adaptation.
- Taxon
- winter wheatTriticum aestivumt0
- Organ / stage
- shoot tissuese0
- Treatment
- Excessive Zinc Contentt0
- Outcome
- water contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the reduced water content in shoot tissues”
t0“Low-Temperature Adaptation of Winter Wheat Seedlings under Excessive Zinc Content in the Root Medium”
Claim · model-written summary
Prolonged cold enhanced adverse physiological effects under zinc excess.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- prolongation of cold exposure under Zn excesse0
- Outcome
- negative influence of low temperature on plant physiological parameterse0
- Direction
- enhancede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The negative influence of low temperature on plant physiological parameters was enhanced with the prolongation of cold exposure under Zn excess in the root medium”
t0“winter wheat”
Claim · model-written summary
Prolonged chilling alleviated disorders at optimal zinc concentration.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- prolonged chillinge0
- Outcome
- cold-induced disorderse0
- Direction
- alleviatione0
- Value
- 2 μMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the alleviation of cold-induced disorders during prolonged chilling under optimal Zn concentration (2 μM).”
t0“winter wheat”
Claim · model-written summary
The authors propose inhibited photosynthesis and disrupted water balance as causes of impaired cold adaptation under high zinc.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- high zinc concentrationse0
- Outcome
- low-temperature adaptatione0
- Qualifier
- inhibition of photosynthesis and the disturbance of plant water balancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inhibition of photosynthesis and the disturbance of plant water balance are the main factors that impair the low-temperature adaptation of seedlings exposed to high zinc concentrations.”
t0“winter wheat”
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See all 9 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.