Abstract
Dry cultivation is a new rice crop mode used to alleviate water shortage and develop water-saving agriculture. There is obvious genetic difference compared with drought-tolerant rice. Silicon (Si) plays an important role in plant adaptation to adverse environmental conditions and can significantly improve the drought tolerance and yield of rice. However, the regulatory mechanism via which Si provides plant tolerance or adaptation under dry cultivation is not well understood. The present study investigated the changes in plant growth, photosynthetic gas exchange, and oxidative stress of the rice cultivar "Suijing 18" under dry cultivation. Si improved photosynthetic performance and antioxidant enzyme activity and subsequently reduced lipid peroxidation of rice seedlings, promoted LAI and promoted leaf growth under dry cultivation. Further, transcriptomics combined with quasi-targeted metabolomics detected 1416 and 520 differentially expressed genes (DEGs), 38 and 41 differentially accumulated metabolites (DAMs) in the rice leaves and roots, respectively. Among them, 13 DEGs were involved in flavonoid biosynthesis, promoting the accumulation of flavonoids, anthocyanins, and flavonols in the roots and leaves of rice under dry cultivation. Meanwhile, 14 DEGs were involved in photosynthesis, promoting photosystem I and photosystem II responses, increasing the abundance of metabolites in leaves. On the other hand, 24 DAMs were identified involved in osmoregulatory processes, significantly increasing amino acids and carbohydrates and their derivatives in roots. These results provide new insight into the role of Si in alleviating to adverse environmental, Si enhanced the accumulation of flavonoids and osmoregulatory metabolites, thereby alleviating drought effect on the roots. On the other hand, improving dehydration resistance of leaves, guaranteeing normal photosynthesis and downward transport of organic matter. In conclusion, Si promoted the coordinated action between the above-ground and below-ground plant parts, improved the root/shoot ratio (R/S) of rice and increased the sugar content and enhancing rice adaptability under dry cultivation conditions. The establishment of the system for increasing the yield of rice under dry cultivation provides theoretical and technical support thereby promoting the rapid development of rice in Northeast China, and ensuring national food security.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 16
Claim · model-written summary
Silicon improved rice seedling photosynthetic performance and antioxidant enzyme activity.
- Taxon
- rice
Oryza sativae0 - Organ / stage
- seedlingse0
- Treatment
- Sie0
- Outcome
- photosynthetic performance and antioxidant enzyme activitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si improved photosynthetic performance and antioxidant enzyme activity and subsequently reduced lipid peroxidation of rice seedlings, promoted LAI and promoted leaf growth under dry cultivation.”
Claim · model-written summary
Silicon reduced lipid peroxidation in rice seedlings.
- Taxon
- riceOryza sativae0
- Organ / stage
- seedlingse0
- Treatment
- Sie0
- Outcome
- lipid peroxidatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si improved photosynthetic performance and antioxidant enzyme activity and subsequently reduced lipid peroxidation of rice seedlings, promoted LAI and promoted leaf growth under dry cultivation.”
Claim · model-written summary
Silicon promoted rice leaf area index and leaf growth.
- Taxon
- riceOryza sativae0
- Organ / stage
- leafe0
- Treatment
- Sie0
- Outcome
- LAI and promoted leaf growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si improved photosynthetic performance and antioxidant enzyme activity and subsequently reduced lipid peroxidation of rice seedlings, promoted LAI and promoted leaf growth under dry cultivation.”
Claim · model-written summary
Transcriptomic analysis found 1416 differentially expressed genes in rice leaves.
- Taxon
- riceOryza sativat0
- Organ / stage
- leavese0
- Outcome
- differentially expressed genes (DEGs)e0
- Value
- 1416e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transcriptomics combined with quasi-targeted metabolomics detected 1416 and 520 differentially expressed genes (DEGs), 38 and 41 differentially accumulated metabolites (DAMs) in the rice leaves and roots, respectively.”
t0“rice”
Claim · model-written summary
Transcriptomic analysis found 520 differentially expressed genes in rice roots.
- Taxon
- riceOryza sativat0
- Organ / stage
- rootse0
- Outcome
- differentially expressed genes (DEGs)e0
- Value
- 520e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transcriptomics combined with quasi-targeted metabolomics detected 1416 and 520 differentially expressed genes (DEGs), 38 and 41 differentially accumulated metabolites (DAMs) in the rice leaves and roots, respectively.”
t0“rice”
Claim · model-written summary
Metabolomic analysis found 38 differentially accumulated metabolites in rice leaves.
- Taxon
- riceOryza sativat0
- Organ / stage
- leavese0
- Outcome
- differentially accumulated metabolites (DAMs)e0
- Value
- 38e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transcriptomics combined with quasi-targeted metabolomics detected 1416 and 520 differentially expressed genes (DEGs), 38 and 41 differentially accumulated metabolites (DAMs) in the rice leaves and roots, respectively.”
t0“rice”
Claim · model-written summary
Metabolomic analysis found 41 differentially accumulated metabolites in rice roots.
- Taxon
- riceOryza sativat0
- Organ / stage
- rootse0
- Outcome
- differentially accumulated metabolites (DAMs)e0
- Value
- 41e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transcriptomics combined with quasi-targeted metabolomics detected 1416 and 520 differentially expressed genes (DEGs), 38 and 41 differentially accumulated metabolites (DAMs) in the rice leaves and roots, respectively.”
t0“rice”
Claim · model-written summary
Thirteen differentially expressed genes were involved in rice flavonoid biosynthesis.
- Taxon
- riceOryza sativae0
- Organ / stage
- roots and leavese0
- Outcome
- DEGs were involved in flavonoid biosynthesise0
- Value
- 13e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“13 DEGs were involved in flavonoid biosynthesis, promoting the accumulation of flavonoids, anthocyanins, and flavonols in the roots and leaves of rice under dry cultivation.”
Claim · model-written summary
Flavonoids, anthocyanins, and flavonols accumulated in rice roots and leaves.
- Taxon
- riceOryza sativae0
- Organ / stage
- roots and leavese0
- Outcome
- accumulation of flavonoids, anthocyanins, and flavonolse0
- Direction
- promotinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“13 DEGs were involved in flavonoid biosynthesis, promoting the accumulation of flavonoids, anthocyanins, and flavonols in the roots and leaves of rice under dry cultivation.”
Claim · model-written summary
Fourteen differentially expressed genes were involved in photosynthesis.
- Taxon
- riceOryza sativat0
- Outcome
- DEGs were involved in photosynthesise0
- Value
- 14e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“14 DEGs were involved in photosynthesis, promoting photosystem I and photosystem II responses, increasing the abundance of metabolites in leaves.”
t0“rice”
Claim · model-written summary
Photosystem I and II responses and leaf metabolite abundance increased.
- Taxon
- riceOryza sativat0
- Organ / stage
- leavese0
- Outcome
- photosystem I and photosystem II responsese0
- Direction
- promotinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“14 DEGs were involved in photosynthesis, promoting photosystem I and photosystem II responses, increasing the abundance of metabolites in leaves.”
t0“rice”
Claim · model-written summary
Twenty-four differentially accumulated metabolites were involved in osmoregulation.
- Taxon
- riceOryza sativat0
- Organ / stage
- rootse0
- Outcome
- DAMs were identified involved in osmoregulatory processese0
- Value
- 24e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“24 DAMs were identified involved in osmoregulatory processes, significantly increasing amino acids and carbohydrates and their derivatives in roots.”
t0“rice”
Claim · model-written summary
Root amino acids and carbohydrates increased significantly.
- Taxon
- riceOryza sativat0
- Organ / stage
- rootse0
- Outcome
- amino acids and carbohydrates and their derivativese0
- Direction
- increasinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“24 DAMs were identified involved in osmoregulatory processes, significantly increasing amino acids and carbohydrates and their derivatives in roots.”
t0“rice”
Claim · model-written summary
Silicon improved the rice root to shoot ratio under dry cultivation.
- Taxon
- riceOryza sativae0
- Treatment
- Sie0
- Outcome
- root/shoot ratio (R/S)e0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si promoted the coordinated action between the above-ground and below-ground plant parts, improved the root/shoot ratio (R/S) of rice and increased the sugar content and enhancing rice adaptability under dry cultivation conditions.”
Claim · model-written summary
Silicon increased rice sugar content under dry cultivation.
- Taxon
- riceOryza sativae0
- Treatment
- Sie0
- Outcome
- sugar contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si promoted the coordinated action between the above-ground and below-ground plant parts, improved the root/shoot ratio (R/S) of rice and increased the sugar content and enhancing rice adaptability under dry cultivation conditions.”
Claim · model-written summary
Silicon enhanced rice adaptability under dry cultivation.
- Taxon
- riceOryza sativae0
- Treatment
- Sie0
- Outcome
- rice adaptabilitye0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Si promoted the coordinated action between the above-ground and below-ground plant parts, improved the root/shoot ratio (R/S) of rice and increased the sugar content and enhancing rice adaptability under dry cultivation conditions.”
The same questions in other papers
silicon atom · physiology: oxidative · Oryza sativa (rice)Results differ
32 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
30 papers more in this group
See all 34 papers →silicon atom · growth · Oryza sativa (rice)Results differ
156 papers in the same direction as this paper · 14 in the opposite direction
- no effect
- positive
- positive
167 papers more in this group
See all 171 papers →silicon atom · soil: biology · Oryza sativa (rice)Positive and negative results
15 papers in the same direction as this paper · 1 in the opposite direction
- positive
- positive
- negative
13 papers more in this group
See all 17 papers →silicon atom · organism · Oryza sativa (rice)Positive and negative results
17 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
16 papers more in this group
See all 20 papers →silicon atom · quality: sugar starch · Oryza sativa (rice)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.