Abstract
Background and Objective: Seagrass extract is a natural plant biostimulant which can be utilized for enhancing plant growth at various stages. The present study was undertaken to explore the application of Zostera marina seagrass extract as foliar spray on salt stressed tomato plants under green house conditions. Methodology: The one set of green house grown tomato plants were sprayed with seagrass extract and another set with water on 15th day of salt treatment. The accumulation of reactive oxygen species, antioxidant enzyme activities and their physiological responses towards different concentration of salt stress were examined after the 3rd treatment. Data were analyzed by one-way ANOVA using SPSS software version 17. Results: The initial studies revealed that the salt stressed plants shown variation in physiology, Relative Water Content (RWC) and accumulation of hydrogen peroxide (H 2 O 2 ) in the leaves. The activities of ascorbate peroxidase (APX), superoxide dismutase (SOD), catalase (CAT) were found to have increased in seagrass extract sprayed plants when compared with the plants sprayed with water. In contrast to APX, SOD, CAT, the activities of peroxidase (POX) were declined in the seagrass treated plants. Conclusion: After 30 days, the plants sprayed with seagrass extract were more efficient in controlling the damage caused by the stress and it has shown enhanced activities of tolerance to the salt stressed plants compared to the control. Further, presence of functional groups and constituents were found in seagrass extract through FTIR and GC-MS analyses.
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Claims 5
Claim · model-written summary
Salt stressed tomato plants varied in physiology, relative water content and leaf hydrogen peroxide accumulation.
- Taxon
- tomato plants
Solanum lycopersicumt0 - Outcome
- physiology, Relative Water Content (RWC) and accumulation of hydrogen peroxide (H 2 O 2 )e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The initial studies revealed that the salt stressed plants shown variation in physiology, Relative Water Content (RWC) and accumulation of hydrogen peroxide (H 2 O 2 ) in the leaves.”
t0“Tomato Plants”
Claim · model-written summary
Seagrass extract spray increased APX, SOD and CAT activities relative to water spray.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- seagrass extracte0
- Outcome
- activities of ascorbate peroxidase (APX), superoxide dismutase (SOD), catalase (CAT)e0
- Direction
- increasede0
- Comparator
- plants sprayed with watere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activities of ascorbate peroxidase (APX), superoxide dismutase (SOD), catalase (CAT) were found to have increased in seagrass extract sprayed plants when compared with the plants sprayed with water.”
t0“Tomato Plants”
Claim · model-written summary
Seagrass extract spray lowered POX activity.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- seagrasse0
- Outcome
- activities of peroxidase (POX)e0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the activities of peroxidase (POX) were declined in the seagrass treated plants.”
t0“Tomato Plants”
Claim · model-written summary
After 30 days, seagrass sprayed plants better controlled salt stress damage than controls.
- Taxon
- Tomato PlantsSolanum lycopersicumt0
- Treatment
- seagrass extracte0
- Outcome
- controlling the damage caused by the stresse0
- Direction
- more efficiente0
- Qualifier
- After 30 dayse0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After 30 days, the plants sprayed with seagrass extract were more efficient in controlling the damage caused by the stress and it has shown enhanced activities of tolerance to the salt stressed plants compared to the control.”
t0“Tomato Plants”
Claim · model-written summary
Functional groups and constituents were detected in seagrass extract.
- Taxon
- Zostera marina
Zostera marinae1 - Outcome
- functional groups and constituentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“presence of functional groups and constituents were found in seagrass extract through FTIR and GC-MS analyses.”
e1“Zostera marina seagrass extract”
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