Abstract
Polyamines are new plant growth regulators and intracellular messengers that regulate plant growth, development, and responses to abiotic environmental stresses.However, little is known about the impact of different polyamines on physiological and biochemical processes of field-grown plants exposed to water deficit stress.A two-year field experiment was conducted as a split-plot based on a randomized complete block design with four replications.Water treatments (Irrigation after 70 and 170 mm evaporation from class A evaporation pan) were assigned to main plots, and foliar application of polyamines including Putrescine, Spermidine and Spermine (at 0 and 0.1 mM) was apportioned to subplots.Average of two years results showed that compared with control, water stress significantly (P < 0.05) reduced adenosine three phosphate (ATP), chlorophyll content index (CCI) and chlorophyll stability index (CSI), rubisco activity, efficiency of photosystem II (Fv/Fm), endogenous polyamine contents, membrane stability index (MSI), nitrogen (N 2 ), potassium (K + ), calcium (Ca 2+ ), magnesium (Mg 2+ ), and grain yield, while polyamine oxidase activity, antioxidant enzymes activity, reactive oxygen species (ROS) and lipid peroxidation (MDA) increased significantly (P < 0.05) upon exposure to water deficit stress.However, exogenous application of polyamines improved ATP content, CCI, CSI, rubisco activity, Fv/Fm, endogenous polyamine content, MSI, antioxidant enzymes activity, N 2 , K + , Ca 2+ , Mg 2+ , and grain yield, while decreased ROS level and MDA content.Compared with the other polyamines, Putrescine showed better effects on physiological, biochemical and agronomical performance in mung bean plants under both irrigation treatments.
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Claims 5
Claim · model-written summary
Water stress reduced ATP, chlorophyll indexes, rubisco activity, photosystem II efficiency, endogenous polyamines, membrane stability, mineral levels and grain yield.
- Taxon
- mung bean
.jpg?width=60)
Vigna radiatat0 - Treatment
- water stresse0
- Outcome
- adenosine three phosphate (ATP), chlorophyll content index (CCI) and chlorophyll stability index (CSI), rubisco activity, efficiency of photosystem II (Fv/Fm), endogenous polyamine contents, membrane stability index (MSI), nitrogen (N 2 ), potassium (K + ), calcium (Ca 2+ ), magnesium (Mg 2+ ), and grain yielde0
- Direction
- reducede0
- Comparator
- controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“water stress significantly (P < 0.05) reduced adenosine three phosphate (ATP), chlorophyll content index (CCI) and chlorophyll stability index (CSI), rubisco activity, efficiency of photosystem II (Fv/Fm), endogenous polyamine contents, membrane stability index (MSI), nitrogen (N 2 ), potassium (K + ), calcium (Ca 2+ ), magnesium (Mg 2+ ), and grain yield”
t0“mung bean”
e1“compared with control”
Claim · model-written summary
Water deficit increased polyamine oxidase and antioxidant enzyme activity, reactive oxygen species and lipid peroxidation.
- Taxon
- mung beanVigna radiatat0
- Treatment
- water deficit stresse0
- Outcome
- polyamine oxidase activity, antioxidant enzymes activity, reactive oxygen species (ROS) and lipid peroxidation (MDA)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“polyamine oxidase activity, antioxidant enzymes activity, reactive oxygen species (ROS) and lipid peroxidation (MDA) increased significantly (P < 0.05) upon exposure to water deficit stress”
t0“mung bean”
Claim · model-written summary
Exogenous polyamines improved energy, photosynthetic, membrane, antioxidant, mineral and yield measures.
- Taxon
- mung beanVigna radiatat0
- Treatment
- exogenous application of polyaminese0
- Outcome
- ATP content, CCI, CSI, rubisco activity, Fv/Fm, endogenous polyamine content, MSI, antioxidant enzymes activity, N 2 , K + , Ca 2+ , Mg 2+ , and grain yielde0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous application of polyamines improved ATP content, CCI, CSI, rubisco activity, Fv/Fm, endogenous polyamine content, MSI, antioxidant enzymes activity, N 2 , K + , Ca 2+ , Mg 2+ , and grain yield”
t0“mung bean”
Claim · model-written summary
Exogenous polyamines decreased reactive oxygen species and lipid peroxidation.
- Taxon
- mung beanVigna radiatat0
- Treatment
- exogenous application of polyaminese0
- Outcome
- ROS level and MDA contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous application of polyamines improved ATP content, CCI, CSI, rubisco activity, Fv/Fm, endogenous polyamine content, MSI, antioxidant enzymes activity, N 2 , K + , Ca 2+ , Mg 2+ , and grain yield, while decreased ROS level and MDA content”
t0“mung bean”
Claim · model-written summary
Putrescine performed better than the other polyamines under both irrigation treatments.
- Taxon
- mung beanVigna radiatae0
- Treatment
- Putrescinee0
- Outcome
- physiological, biochemical and agronomical performancee0
- Direction
- bettere0
- Qualifier
- under both irrigation treatmentse0
- Comparator
- the other polyaminese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the other polyamines, Putrescine showed better effects on physiological, biochemical and agronomical performance in mung bean plants under both irrigation treatments”
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