Abstract
Plants are exposed to solar ultraviolet radiation due to use of sunlight for photosynthesis. Additionally, salinity in soil or water influences the plant productivity and quality considerably. Moreover, when plants are simultaneously exposed to multiple stresses, one form of stress can affect the response to other stress. Particularly, it has been shown that they can benefit from dual tolerance as salinity and UV-B radiation are applied together. In order to understand the effects of UV-B radiation and salinity stress on some physiological and biochemical parameters, one-year-old cuttings of rosemary plants were grown under different levels of ultraviolet B radiation (0, 4.32 and 6.05 kJ m -2 d -1 ) and salinity stress (control, 50, 100 and 150 mM NaCl). The results showed that 4.32 kJ m -2 d -1 UV-B treatment significantly increased plant biomass up to 17.9% as compared to control. However, by increasing salinity to 150 mM, plant biomass significantly decreased up to 18.1%, as compared to control. Regardless of UV-B treatments, plants, grown under 100 mM salinity stress, had produced 2.8 times higher total phenolic compounds (TPC) and also have greater antioxidant activity (33.1%) in comparison to control. Both treatments, enhanced UV-B radiation and salinity stress, significantly increased the concentration of proline, hydrogen peroxide (H 2 O 2 ) and malondealdehyde (MDA). In relation of total soluble sugar (TSS) and ion content, both treatments acted in an opposing manner. In turn, the enhanced UV-B radiation decreased concentration of TSS and the Na + content in leaves, salinity stress increased the concentration of TSS, as well as the Na + content in leaves and root. The plants grown under 150 mM salinity level accumulated 5.32 and 2.83 times higher Na + ions in leaves and roots, respectively, than control. In addition, salinity significantly decreased the relative water content (RWC), photosynthetic pigments and K + content in leaves and roots. The interaction between UV-B irradiation and salinity showed that the UV-B radiation improved the K + content in leaves, RWC and membrane stability and consequently resulted in a better tolerance of rosemary to salinity.
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Claims 14
Claim · model-written summary
UV-B at 4.32 kJ m -2 d -1 increased biomass by 17.9% versus control.
- Taxon
- Rosemary
Salvia rosmarinust0 - Treatment
- 4.32 kJ m -2 d -1 UV-B treatmente0
- Outcome
- plant biomasse0
- Direction
- increasede0
- Value
- 17.9%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“4.32 kJ m -2 d -1 UV-B treatment significantly increased plant biomass up to 17.9% as compared to control.”
t0“Rosemary Plants”
Claim · model-written summary
Salinity at 150 mM reduced biomass by 18.1% versus control.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- salinity to 150 mMe0
- Outcome
- plant biomasse0
- Direction
- decreasede0
- Value
- 18.1%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by increasing salinity to 150 mM, plant biomass significantly decreased up to 18.1%, as compared to control.”
t0“Rosemary Plants”
Claim · model-written summary
At 100 mM salinity, total phenolic compounds were 2.8 times higher than control.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- 100 mM salinity stresse0
- Outcome
- total phenolic compounds (TPC)e0
- Direction
- highere0
- Value
- 2.8 timese0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants, grown under 100 mM salinity stress, had produced 2.8 times higher total phenolic compounds (TPC) and also have greater antioxidant activity (33.1%) in comparison to control.”
t0“Rosemary Plants”
Claim · model-written summary
At 100 mM salinity, antioxidant activity was 33.1% greater than control.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- 100 mM salinity stresse0
- Outcome
- antioxidant activitye0
- Direction
- greatere0
- Value
- 33.1%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants, grown under 100 mM salinity stress, had produced 2.8 times higher total phenolic compounds (TPC) and also have greater antioxidant activity (33.1%) in comparison to control.”
t0“Rosemary Plants”
Claim · model-written summary
enhanced UV-B radiation increased proline, hydrogen peroxide and MDA.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- enhanced UV-B radiatione0
- Outcome
- concentration of proline, hydrogen peroxide (H 2 O 2 ) and malondealdehyde (MDA)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both treatments, enhanced UV-B radiation and salinity stress, significantly increased the concentration of proline, hydrogen peroxide (H 2 O 2 ) and malondealdehyde (MDA).”
t0“Rosemary Plants”
Claim · model-written summary
salinity stress increased proline, hydrogen peroxide and MDA.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- salinity stresse0
- Outcome
- concentration of proline, hydrogen peroxide (H 2 O 2 ) and malondealdehyde (MDA)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both treatments, enhanced UV-B radiation and salinity stress, significantly increased the concentration of proline, hydrogen peroxide (H 2 O 2 ) and malondealdehyde (MDA).”
t0“Rosemary Plants”
Claim · model-written summary
Enhanced UV-B decreased soluble sugar and leaf sodium.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- enhanced UV-B radiatione0
- Outcome
- concentration of TSS and the Na + content in leavese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the enhanced UV-B radiation decreased concentration of TSS and the Na + content in leaves”
t0“Rosemary Plants”
Claim · model-written summary
Salinity increased soluble sugar and sodium in leaves and roots.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- salinity stresse0
- Outcome
- concentration of TSS, as well as the Na + content in leaves and roote0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity stress increased the concentration of TSS, as well as the Na + content in leaves and root.”
t0“Rosemary Plants”
Claim · model-written summary
At 150 mM salinity, sodium in leaves was 5.32 times higher than control.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- 150 mM salinity levele0
- Outcome
- Na + ions in leavese0
- Direction
- highere0
- Value
- 5.32e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants grown under 150 mM salinity level accumulated 5.32 and 2.83 times higher Na + ions in leaves and roots, respectively, than control.”
t0“Rosemary Plants”
Claim · model-written summary
At 150 mM salinity, sodium in roots was 2.83 times higher than control.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- 150 mM salinity levele0
- Outcome
- rootse0
- Direction
- highere0
- Value
- 2.83e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants grown under 150 mM salinity level accumulated 5.32 and 2.83 times higher Na + ions in leaves and roots, respectively, than control.”
t0“Rosemary Plants”
Claim · model-written summary
Salinity reduced relative water content and photosynthetic pigments.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- salinitye0
- Outcome
- relative water content (RWC), photosynthetic pigmentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity significantly decreased the relative water content (RWC), photosynthetic pigments and K + content in leaves and roots.”
t0“Rosemary Plants”
Claim · model-written summary
Salinity reduced potassium in leaves and roots.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- salinitye0
- Outcome
- K + content in leaves and rootse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity significantly decreased the relative water content (RWC), photosynthetic pigments and K + content in leaves and roots.”
t0“Rosemary Plants”
Claim · model-written summary
Under salinity, UV-B improved leaf potassium, water content and membrane stability.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- UV-B radiatione0
- Outcome
- K + content in leaves, RWC and membrane stabilitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the UV-B radiation improved the K + content in leaves, RWC and membrane stability and consequently resulted in a better tolerance of rosemary to salinity.”
t0“Rosemary Plants”
Claim · model-written summary
UV-B improved rosemary tolerance to salinity.
- Taxon
- RosemarySalvia rosmarinust0
- Treatment
- UV-B radiatione0
- Outcome
- tolerance of rosemary to salinitye0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the UV-B radiation improved the K + content in leaves, RWC and membrane stability and consequently resulted in a better tolerance of rosemary to salinity.”
t0“Rosemary Plants”
The same questions in other papers
salinity · growth · Salvia rosmarinus (rosemary)Results differ
11 papers in the same direction as this paper
- no effect
- negative
- negative
8 papers more in this group
See all 12 papers →uv · growth · Salvia rosmarinus (rosemary)Results agree
1 paper in the same direction as this paper
- positive
salinity · quality: phytochemicals · Salvia rosmarinus (rosemary)Results agree
1 paper in the same direction as this paper
- positive
salinity · physiology: osmolytes · Salvia rosmarinus (rosemary)Results agree
1 paper in the same direction as this paper
- negative
salinity · molecular: metabolites · Salvia rosmarinus (rosemary)Results agree
1 paper in the same direction as this paper
- negative
salinity · physiology: water · Salvia rosmarinus (rosemary)Results agree
2 papers in the same direction as this paper
- negative
- negative
salinity · physiology: oxidative · Salvia rosmarinus (rosemary)Results agree
2 papers in the same direction as this paper
- negative
- 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.