Abstract
Salinity is a major worldwide problem that affects agricultural soils and limits the reclamation of contaminated sites. Despite the large number of research papers published about salt tolerance in Brassica juncea L., there are very few accounts concerning the influence of salinity on the uptake of trace metals. In this study, B. juncea plants divided through soil sets comprising 0, 900 and 1800 mg Zn kg(-1), were treated with solutions containing 0, 60 and 120 mmol L(-1) of NaCl, with the purpose of observing the effect of salt on Zn uptake, and some physiological responses throughout the 90 days experiment. Increasing concentrations of NaCl and Zn produced a decline in the ecophysiological and biochemical properties of the plants, with observable synergistic effects on parameters like shoot dry weight, leaf area, or photochemical efficiency. Nevertheless, plants treated with 60 mmol L(-1) of NaCl accumulated striking harvestable amounts of Zn per plant that largely exceed those reported for Thlaspi caerulescens. It was concluded that salinity could play an important role on the uptake of Zn by B. juncea. The potential mechanisms behind these results are discussed, as well as the implications for phytoremediation of Zn on saline and non-saline soils.
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Claims 2
Claim · model-written summary
Increasing NaCl and Zn lowered shoot dry weight, leaf area and photochemical efficiency synergistically.
- Taxon
- Brassica juncea
Brassica junceat0 - Treatment
- NaCl and Zne0
- Outcome
- shoot dry weight, leaf area, or photochemical efficiencye0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea”
e0“Increasing concentrations of NaCl and Zn produced a decline in the ecophysiological and biochemical properties of the plants, with observable synergistic effects on parameters like shoot dry weight, leaf area, or photochemical efficiency.”
Claim · model-written summary
At 60 mmol L(-1) NaCl, plants accumulated harvestable Zn amounts exceeding those reported for Thlaspi caerulescens.
- Taxon
- Brassica junceaBrassica junceat0
- Treatment
- 60 mmol L(-1) of NaCle0
- Outcome
- harvestable amounts of Zn per plante0
- Direction
- largely exceede0
- Comparator
- Thlaspi caerulescense0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica juncea”
e0“plants treated with 60 mmol L(-1) of NaCl accumulated striking harvestable amounts of Zn per plant that largely exceed those reported for Thlaspi caerulescens.”
The same questions in other papers
sodium chloride · nutrient: content · Brassica juncea (Indian mustard)Positive and negative results
1 in the opposite direction
- negative
zinc atom · physiology: photosynthesis · Brassica juncea (Indian mustard)Results agree
1 paper in the same direction as this paper
- negative
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.