Abstract
Water scarcity is a foremost environmental concern and is expected to hasten in the forthcoming years due to severe fluctuations in weather patterns worldwide. The present work was designed to explore the potential role of alpha-tocopherol (α-Toc), a form of vitamin E, on the morphological, physio-biochemical, and cellular antioxidant responses of two radish genotypes grown under drought conditions (38 ± 3% of field capacity). The individual and combined applications of α-Toc (100 ppm) were used as T0- Control, T1- Control + TF (TF-alpha-tocopherol), T2- Drought (D), and T3- D + TF with three replications. In general, drought conditions cause a marked reduction in, growth traits such as root length (RL), shoot dry weight (SDW), and shoot fresh weight (SFW). However, the sole and combined applications of α-Toc significantly enhanced the SDW, SFW, and RL in both radish genotypes. Drought stress causes a significant upsurge in hydrogen peroxide (H2O2) and lipid peroxidation (LPX) in leaves. At the same time, exogenous fertigation of α-Toc protects the membranes by reducing the level of LPX, enhancing antioxidants such as catalase (CAT) and peroxidase (POX) to scavenge the reactive oxygen species (ROS), and enhancing the osmolyte as total soluble proteins to maintain cell internal osmotic potential. Also, the α-Toc enhanced the photosynthetic pigments and significantly increased photosynthetic activity in the Early Milo (G2) as compared to Laal Pari (G1) genotype under drought, enhancing water use efficiency by maintaining transpiration rate and stomatal conductance. The α-Toc also regulates the beneficial inorganic ions (K+, Ca2+, and PO₄³⁻) in the shoots of both genotypes. Our present findings demonstrate the potential role of α-Toc in mitigating drought stress and infer that it can enhance plant growth under drought conditions.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 11
Claim · model-written summary
Drought reduced radish root length, shoot dry weight, and shoot fresh weight.
- Taxon
- radish
Raphanus sativust0 - Treatment
- drought conditionse0
- Outcome
- root length (RL), shoot dry weight (SDW), and shoot fresh weight (SFW)e0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“drought conditions cause a marked reduction in, growth traits such as root length (RL), shoot dry weight (SDW), and shoot fresh weight (SFW)”
t0“radish (Raphanus sativus L.)”
Claim · model-written summary
Alpha-tocopherol enhanced shoot dry and fresh weights and root length in both radish genotypes.
- Taxon
- radishRaphanus sativuse0
- Treatment
- α-Toce0
- Outcome
- SDW, SFW, and RLe0
- Direction
- enhancede0
- Qualifier
- both radish genotypese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sole and combined applications of α-Toc significantly enhanced the SDW, SFW, and RL in both radish genotypes”
Claim · model-written summary
Drought significantly increased leaf hydrogen peroxide and lipid peroxidation.
- Taxon
- radishRaphanus sativust0
- Organ / stage
- leavese0
- Treatment
- Drought stresse0
- Outcome
- hydrogen peroxide (H2O2) and lipid peroxidation (LPX)e0
- Direction
- upsurgee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Drought stress causes a significant upsurge in hydrogen peroxide (H2O2) and lipid peroxidation (LPX) in leaves.”
t0“radish (Raphanus sativus L.)”
Claim · model-written summary
Alpha-tocopherol fertigation reduced lipid peroxidation.
- Taxon
- radishRaphanus sativust0
- Treatment
- exogenous fertigation of α-Toce0
- Outcome
- level of LPXe0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exogenous fertigation of α-Toc protects the membranes by reducing the level of LPX”
t0“radish (Raphanus sativus L.)”
Claim · model-written summary
Alpha-tocopherol enhanced catalase and peroxidase antioxidants.
- Taxon
- radishRaphanus sativust0
- Treatment
- exogenous fertigation of α-Toce1
- Outcome
- antioxidants such as catalase (CAT) and peroxidase (POX)e0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhancing antioxidants such as catalase (CAT) and peroxidase (POX) to scavenge the reactive oxygen species (ROS)”
e1“exogenous fertigation of α-Toc”
t0“radish (Raphanus sativus L.)”
Claim · model-written summary
Alpha-tocopherol enhanced total soluble proteins.
- Taxon
- radishRaphanus sativust0
- Treatment
- exogenous fertigation of α-Toce1
- Outcome
- total soluble proteinse0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhancing the osmolyte as total soluble proteins to maintain cell internal osmotic potential”
e1“exogenous fertigation of α-Toc”
t0“radish (Raphanus sativus L.)”
Claim · model-written summary
Alpha-tocopherol enhanced photosynthetic pigments.
- Taxon
- radishRaphanus sativust0
- Treatment
- α-Toce0
- Outcome
- photosynthetic pigmentse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the α-Toc enhanced the photosynthetic pigments”
t0“radish (Raphanus sativus L.)”
Claim · model-written summary
Under drought, alpha-tocopherol significantly increased photosynthetic activity in Early Milo compared with Laal Pari.
- Taxon
- radishRaphanus sativust0
- Material
- Early Milo (G2)e0
- Treatment
- α-Toce1
- Outcome
- photosynthetic activitye0
- Direction
- increasede0
- Qualifier
- under droughte0
- Comparator
- Laal Pari (G1) genotypee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly increased photosynthetic activity in the Early Milo (G2) as compared to Laal Pari (G1) genotype under drought”
e1“the α-Toc enhanced the photosynthetic pigments”
t0“radish (Raphanus sativus L.)”
Claim · model-written summary
Alpha-tocopherol enhanced water use efficiency.
- Taxon
- radishRaphanus sativust0
- Treatment
- α-Toce1
- Outcome
- water use efficiencye0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“enhancing water use efficiency by maintaining transpiration rate and stomatal conductance”
e1“the α-Toc enhanced the photosynthetic pigments”
t0“radish (Raphanus sativus L.)”
Claim · model-written summary
Alpha-tocopherol maintained transpiration rate and stomatal conductance.
- Taxon
- radishRaphanus sativust0
- Treatment
- α-Toce1
- Outcome
- transpiration rate and stomatal conductancee0
- Direction
- maintaininge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maintaining transpiration rate and stomatal conductance”
e1“the α-Toc enhanced the photosynthetic pigments”
t0“radish (Raphanus sativus L.)”
Claim · model-written summary
Alpha-tocopherol regulated potassium, calcium, and phosphate ions in shoots of both genotypes.
- Taxon
- radishRaphanus sativust0
- Organ / stage
- shootse0
- Treatment
- α-Toce0
- Outcome
- beneficial inorganic ions (K+, Ca2+, and PO₄³⁻)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The α-Toc also regulates the beneficial inorganic ions (K+, Ca2+, and PO₄³⁻) in the shoots of both genotypes.”
t0“radish (Raphanus sativus L.)”
The same questions in other papers
drought · growth · Raphanus sativus (radish)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
3 papers more in this group
See all 7 papers →drought · physiology: oxidative · Raphanus sativus (radish)Results agree
1 paper in the same direction as this paper
- negative
fertilization · physiology: oxidative · Raphanus sativus (radish)Results agree
1 paper in the same direction as this paper
- positive
fertilization · physiology: osmolytes · Raphanus sativus (radish)Results agree
6 papers in the same direction as this paper
- positive
- positive
- positive
3 papers more in this group
See all 7 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.