Abstract
A pot experiment was conducted to assess the induction of drought tolerance in maize by foliar-applied α-tocopherol at early growth stage. Experiment was comprised two maize cultivars (Agaiti-2002 and EV-1098), two water stress levels (70% and 100% field capacity), and two α-tocopherol levels (0 mmol and 50 mmol) as foliar spray. Experiment was arranged in a completely randomized design in factorial arrangement with three replications of each treatment. α-tocopherol was applied foliary at the early vegetative stage. Water stress reduced the growth of maize plants with an increase in lipid peroxidation in both maize cultivars. Contents of non-enzymatic antioxidants and activities of antioxidant enzymes increased in studied plant parts under drought, while the nutrient uptake was decreased. Foliary-applied α-tocopherol improved the growth of both maize cultivars, associated with improvements in photosynthetic pigment, water relations, antioxidative mechanism, and better nutrient acquisition in root and shoot along with tocopherol contents and a decrease in lipid peroxidation. Furthermore, the increase of tocopherol levels in roots after α-Toc foliar application confers its basipetal translocation. In conclusion, the findings confer the role of foliar-applied α-tocopherol in the induction of drought tolerance of maize associated with tissue specific improvements in antioxidative defense mechanism through its translocation.
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Claims 10
Claim · model-written summary
Water stress reduced the growth of maize plants in both cultivars.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress reduced the growth of maize plants with an increase in lipid peroxidation in both maize cultivars”
Claim · model-written summary
Water stress increased lipid peroxidation in both maize cultivars.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress reduced the growth of maize plants with an increase in lipid peroxidation in both maize cultivars”
Claim · model-written summary
Contents of non-enzymatic antioxidants and activities of antioxidant enzymes increased in studied plant parts under drought.
- Treatment
- droughte0
- Outcome
- Contents of non-enzymatic antioxidants and activities of antioxidant enzymese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e0“Contents of non-enzymatic antioxidants and activities of antioxidant enzymes increased in studied plant parts under drought, while the nutrient uptake was decreased”
Claim · model-written summary
Nutrient uptake decreased in maize under drought.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e0“Contents of non-enzymatic antioxidants and activities of antioxidant enzymes increased in studied plant parts under drought, while the nutrient uptake was decreased”
Claim · model-written summary
Foliar-applied alpha-tocopherol improved the growth of both maize cultivars.
- Treatment
- Foliary-applied α-tocopherole0
- Outcome
- the growth of both maize cultivarse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliary-applied α-tocopherol improved the growth of both maize cultivars, associated with improvements in photosynthetic pigment, water relations, antioxidative mechanism, and better nutrient acquisition in root and shoot along with tocopherol contents and a decrease in lipid peroxidation”
Claim · model-written summary
Foliar alpha-tocopherol was associated with improvements in photosynthetic pigment, water relations and antioxidative mechanism in maize.
- Treatment
- Foliary-applied α-tocopherole0
- Outcome
- photosynthetic pigment, water relations, antioxidative mechanisme0
- Direction
- improvementse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliary-applied α-tocopherol improved the growth of both maize cultivars, associated with improvements in photosynthetic pigment, water relations, antioxidative mechanism, and better nutrient acquisition in root and shoot along with tocopherol contents and a decrease in lipid peroxidation”
Claim · model-written summary
Foliar alpha-tocopherol was associated with better nutrient acquisition in root and shoot and higher tocopherol contents in maize.
- Treatment
- Foliary-applied α-tocopherole0
- Outcome
- nutrient acquisition in root and shoot along with tocopherol contentse0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliary-applied α-tocopherol improved the growth of both maize cultivars, associated with improvements in photosynthetic pigment, water relations, antioxidative mechanism, and better nutrient acquisition in root and shoot along with tocopherol contents and a decrease in lipid peroxidation”
Claim · model-written summary
Foliar alpha-tocopherol was associated with a decrease in lipid peroxidation in maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliary-applied α-tocopherol improved the growth of both maize cultivars, associated with improvements in photosynthetic pigment, water relations, antioxidative mechanism, and better nutrient acquisition in root and shoot along with tocopherol contents and a decrease in lipid peroxidation”
Claim · model-written summary
The authors interpret the increased tocopherol levels in roots after foliar alpha-tocopherol application as showing its basipetal translocation.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Maize (Zea mays L.)”
e0“the increase of tocopherol levels in roots after α-Toc foliar application confers its basipetal translocation”
Claim · model-written summary
The authors conclude that foliar-applied alpha-tocopherol induces drought tolerance in maize, associated with tissue-specific improvements in antioxidative defense mechanism through its translocation.
- Treatment
- foliar-applied α-tocopherole0
- Outcome
- drought tolerancee0
- Qualifier
- tissue specific improvements in antioxidative defense mechanism through its translocatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the findings confer the role of foliar-applied α-tocopherol in the induction of drought tolerance of maize associated with tissue specific improvements in antioxidative defense mechanism through its translocation”
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