Abstract
Salt stress is more and more becoming a serious problem in the world especially if we consider its damaging effect on the plant growth and yield. The cultivation of medicinal plants, such as Aloe vera, might be an alternative for the saline water use and salt-affected soils occupation. Aloe vera, commonly known as aloe, is one of the primary medicinal plants with multipurpose applications going from pharmaceutical to cosmetic aspects with a promising economic return. Aloe plants were cultivated and irrigated, for 14 months, with drinking water (C0) and with two levels of salt (C1 and C2). Changes in growth, hydrogen peroxide (H2O2), lipid peroxidation and phenolic compounds were examined in leaves at harvest. Depressive effects of salt irrigation on the plant growth parameters and a perturbation in inorganic ion contents were found especially with a high level of salt in the irrigation water. The intracellular oxidative stress was evaluated with the H2O2 production. Our results showed that the H2O2 content increased with the accumulation of the toxic ion (Na) in the leaf tissues. In addition, lipid peroxidation, measured by the malondialdehyde (MDA) level, increased as well with salt augmentation in the irrigation water. In response to salt stress, Aloe leaves showed a significant increase in the levels of phenolic compounds too. These results suggest that Aloe can be planted in soils affected by salinity and irrigated with salt water at least at a moderate concentration used in the present study.
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Claims 6
Claim · model-written summary
Salt irrigation depressed Aloe vera growth parameters relative to drinking-water irrigation, especially at the high salt level.
- Treatment
- salt irrigatione1
- Outcome
- plant growth parameterse1
- Direction
- Depressive effectse1
- Qualifier
- especially with a high level of salt in the irrigation watere1
- Comparator
- drinking water (C0)e2
Aloe veraOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aloe veralong-term saline irrigation”
e1“Depressive effects of salt irrigation on the plant growth parameters and a perturbation in inorganic ion contents were found especially with a high level of salt in the irrigation water”
e2“Aloe plants were cultivated and irrigated, for 14 months, with drinking water (C0)”
Claim · model-written summary
Leaf H2O2 content increased as the toxic ion Na accumulated in the leaf tissues of Aloe vera.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aloe veralong-term saline irrigation”
e3“Our results showed that the H2O2 content increased with the accumulation of the toxic ion (Na) in the leaf tissues”
Claim · model-written summary
Lipid peroxidation, measured as MDA level, increased with salt augmentation in the irrigation water in Aloe vera.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aloe veralong-term saline irrigation”
e4“lipid peroxidation, measured by the malondialdehyde (MDA) level, increased as well with salt augmentation in the irrigation water”
Claim · model-written summary
Salt stress significantly increased phenolic compound levels in Aloe vera leaves.
- Organ / stage
- leavese5
- Treatment
- salt stresse5
- Outcome
- levels of phenolic compoundse5
- Direction
- significant increasee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aloe veralong-term saline irrigation”
e5“In response to salt stress, Aloe leaves showed a significant increase in the levels of phenolic compounds”
Claim · model-written summary
Inorganic ion contents of Aloe vera were perturbed, especially under high salt in the irrigation water.
- Treatment
- a high level of salt in the irrigation watere1
- Outcome
- perturbation in inorganic ion contentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aloe veralong-term saline irrigation”
e1“Depressive effects of salt irrigation on the plant growth parameters and a perturbation in inorganic ion contents were found especially with a high level of salt in the irrigation water”
Claim · model-written summary
Aloe vera can be planted in salt-affected soils and irrigated with salt water at least at a moderate concentration.
- Outcome
- planted in soils affected by salinity and irrigated with salt watere6
- Qualifier
- at least at a moderate concentratione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Aloe veralong-term saline irrigation”
e6“These results suggest that Aloe can be planted in soils affected by salinity and irrigated with salt water at least at a moderate concentration used in the present study”
The same questions in other papers
irrigation · growth · Aloe vera (aloe-vera)Positive and negative results
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See all 6 papers →salinity · growth · Aloe vera (aloe-vera)Positive and negative results
6 papers in the same direction as this paper · 3 in the opposite direction
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See all 10 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.