Abstract
Drought is one of the most detrimental environmental factors restricting the growth of wheat (Triticum aestivum L.). The investigation of the impact of uniconazole on carbon metabolism in wheat seedlings under drought stress could provide new insights into wheat stress physiology and tolerance. The effects of uniconazole (30 mg L−1) on wheat drought tolerance were investigated via a physiological analysis of the wheat genotypes ‘Wansu 1510’ (WS1510) and ‘Huacheng wheat 1688’ (HC1688) under a 15% polyethylene glycol (PEG) and 30% PEG treatment and a transcriptome analysis of ‘Wansu 1510’ (WS1510) under a 30% PEG treatment. The results revealed that uniconazole significantly increased the leaf relative water content (RWC), reduced plant height, and counteracted the reduction in fresh weight and root length under drought stress. It inhibited the excessive accumulation of reactive oxygen species (ROS) and protected against membrane lipid peroxidation caused by drought stress by regulating superoxide dismutase (SOD) gene expression, enhancing antioxidant enzymes activities, and adjusting the content of osmoregulatory compounds in drought-stressed plants. Furthermore, uniconazole treatment increased chlorophyll (Chl) and carotenoid (Car) contents, inhibited the increase in sucrose concentration, and alleviated the reduction in starch content due to increased sucrose synthase (SS) activity under drought stress. Transcriptome sequencing revealed that uniconazole regulated the expression of genes associated with starch and sucrose metabolism, porphyrin and chlorophyll metabolism, the photosynthetic antenna proteins, carotenoid biosynthesis, and carbon fixation in photosynthetic organisms, which are involved in carbon metabolism processes and photosynthetic pigment production and which regulate the conversion of sucrose and starch under drought stress. Our findings emphasize the importance of exogenous uniconazole in regulating carbon metabolism in wheat.
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Claims 13
Claim · model-written summary
Uniconazole significantly increased leaf relative water content of wheat seedlings under drought stress.
- Taxon
- wheat
Triticum aestivume6 - Treatment
- uniconazolee0
- Outcome
- leaf relative water content (RWC)e0
- Direction
- increasede0
- Qualifier
- under drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e0“The results revealed that uniconazole significantly increased the leaf relative water content (RWC), reduced plant height, and counteracted the reduction in fresh weight and root length under drought stress”
Claim · model-written summary
Uniconazole reduced plant height of wheat seedlings under drought stress.
- Taxon
- wheatTriticum aestivume6
- Treatment
- uniconazolee0
- Outcome
- plant heighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e0“The results revealed that uniconazole significantly increased the leaf relative water content (RWC), reduced plant height, and counteracted the reduction in fresh weight and root length under drought stress”
Claim · model-written summary
Uniconazole counteracted the drought-induced reduction in fresh weight and root length of wheat seedlings.
- Taxon
- wheatTriticum aestivume6
- Treatment
- uniconazolee0
- Outcome
- fresh weight and root lengthe0
- Direction
- counteracted the reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e0“The results revealed that uniconazole significantly increased the leaf relative water content (RWC), reduced plant height, and counteracted the reduction in fresh weight and root length under drought stress”
Claim · model-written summary
Uniconazole inhibited the excessive accumulation of reactive oxygen species in drought-stressed wheat seedlings.
- Taxon
- wheatTriticum aestivume6
- Treatment
- uniconazolee0
- Outcome
- accumulation of reactive oxygen species (ROS)e1
- Direction
- inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e0“The results revealed that uniconazole significantly increased the leaf relative water content (RWC), reduced plant height, and counteracted the reduction in fresh weight and root length under drought stress”
e1“It inhibited the excessive accumulation of reactive oxygen species (ROS) and protected against membrane lipid peroxidation caused by drought stress”
Claim · model-written summary
Uniconazole protected drought-stressed wheat seedlings against membrane lipid peroxidation.
- Taxon
- wheatTriticum aestivume6
- Treatment
- uniconazolee0
- Outcome
- membrane lipid peroxidatione1
- Direction
- protected againste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e0“The results revealed that uniconazole significantly increased the leaf relative water content (RWC), reduced plant height, and counteracted the reduction in fresh weight and root length under drought stress”
e1“It inhibited the excessive accumulation of reactive oxygen species (ROS) and protected against membrane lipid peroxidation caused by drought stress”
Claim · model-written summary
Uniconazole enhanced antioxidant enzyme activities in drought-stressed wheat seedlings.
- Taxon
- wheatTriticum aestivume6
- Treatment
- uniconazolee0
- Gene
- superoxide dismutase (SOD)e2
- Outcome
- antioxidant enzymes activitiese2
- Direction
- enhancinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e0“The results revealed that uniconazole significantly increased the leaf relative water content (RWC), reduced plant height, and counteracted the reduction in fresh weight and root length under drought stress”
e2“by regulating superoxide dismutase (SOD) gene expression, enhancing antioxidant enzymes activities, and adjusting the content of osmoregulatory compounds in drought-stressed plants”
Claim · model-written summary
Uniconazole regulated superoxide dismutase gene expression in drought-stressed wheat seedlings.
- Taxon
- wheatTriticum aestivume6
- Treatment
- uniconazolee0
- Gene
- superoxide dismutase (SOD)e2
- Outcome
- superoxide dismutase (SOD) gene expressione2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e0“The results revealed that uniconazole significantly increased the leaf relative water content (RWC), reduced plant height, and counteracted the reduction in fresh weight and root length under drought stress”
e2“by regulating superoxide dismutase (SOD) gene expression, enhancing antioxidant enzymes activities, and adjusting the content of osmoregulatory compounds in drought-stressed plants”
Claim · model-written summary
Uniconazole treatment increased chlorophyll and carotenoid contents in drought-stressed wheat seedlings.
- Taxon
- wheatTriticum aestivume6
- Treatment
- uniconazole treatmente3
- Outcome
- chlorophyll (Chl) and carotenoid (Car) contentse3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e3“uniconazole treatment increased chlorophyll (Chl) and carotenoid (Car) contents, inhibited the increase in sucrose concentration, and alleviated the reduction in starch content due to increased sucrose synthase (SS) activity under drought stress”
Claim · model-written summary
Uniconazole inhibited the increase in sucrose concentration of drought-stressed wheat seedlings.
- Taxon
- wheatTriticum aestivume6
- Treatment
- uniconazole treatmente3
- Outcome
- sucrose concentratione3
- Direction
- inhibited the increasee3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e3“uniconazole treatment increased chlorophyll (Chl) and carotenoid (Car) contents, inhibited the increase in sucrose concentration, and alleviated the reduction in starch content due to increased sucrose synthase (SS) activity under drought stress”
Claim · model-written summary
Uniconazole alleviated the drought-induced reduction in starch content of wheat seedlings.
- Taxon
- wheatTriticum aestivume6
- Treatment
- uniconazole treatmente3
- Outcome
- starch contente3
- Direction
- alleviated the reductione3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e3“uniconazole treatment increased chlorophyll (Chl) and carotenoid (Car) contents, inhibited the increase in sucrose concentration, and alleviated the reduction in starch content due to increased sucrose synthase (SS) activity under drought stress”
Claim · model-written summary
Uniconazole increased sucrose synthase activity in drought-stressed wheat seedlings.
- Taxon
- wheatTriticum aestivume6
- Treatment
- uniconazole treatmente3
- Gene
- sucrose synthase (SS)e3
- Outcome
- sucrose synthase (SS) activitye3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e3“uniconazole treatment increased chlorophyll (Chl) and carotenoid (Car) contents, inhibited the increase in sucrose concentration, and alleviated the reduction in starch content due to increased sucrose synthase (SS) activity under drought stress”
Claim · model-written summary
Uniconazole regulated expression of genes for starch and sucrose metabolism, porphyrin and chlorophyll metabolism, and photosynthetic antenna proteins in wheat seedlings.
- Taxon
- wheatTriticum aestivume6
- Treatment
- uniconazolee4
- Outcome
- expression of genes associated with starch and sucrose metabolism, porphyrin and chlorophyll metabolism, the photosynthetic antenna proteinse4
- Direction
- regulatede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e4“uniconazole regulated the expression of genes associated with starch and sucrose metabolism, porphyrin and chlorophyll metabolism, the photosynthetic antenna proteins, carotenoid biosynthesis, and carbon fixation in photosynthetic organisms”
Claim · model-written summary
Uniconazole regulated expression of genes for carotenoid biosynthesis and carbon fixation in wheat seedlings.
- Taxon
- wheatTriticum aestivume6
- Treatment
- uniconazolee4
- Outcome
- carotenoid biosynthesis, and carbon fixatione4
- Direction
- regulatede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“restricting the growth of wheat (Triticum aestivum L.)”
e4“uniconazole regulated the expression of genes associated with starch and sucrose metabolism, porphyrin and chlorophyll metabolism, the photosynthetic antenna proteins, carotenoid biosynthesis, and carbon fixation in photosynthetic organisms”
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