Abstract
Deg proteases play critical roles in photoprotection and PSII-repair circle, which remains elusive in cereal crops including wheat. Here, a Deg7-encoding gene TaDeg7 was silenced in wheat via a Barley stripe mosaic virus-induced gene-silencing system (BSMV-VIGS). When the expression level of TaDeg7 was downregulated, the photosynthetic activity including CO2 assimilation rate, actual photochemical efficiency of PSII, and electron transport rate declined while the nonphotochemical quenching increased significantly. When grown in high light, the BSMV:TaDeg7 plants accumulated more soluble sugar, malondialdehyde, and superoxide anion but had lower superoxide dismutase activity and less ascorbic acid. Additionally, the expression levels of TaPsbA and TarbcS were repressed in the BSMV:TaDeg7 plants in high light. The BSMV:TaDeg7 plants also were more sensitive to high-light stress. Collectively, it appeared that TaDeg7 may be a potential target for wheat radiation-use efficiency improvement against high light stress.
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 7
Claim · model-written summary
TaDeg7 downregulation reduced CO2 assimilation rate, PSII photochemical efficiency, and electron transport rate.
- Taxon
- bread wheat
Triticum aestivumt0 - Treatment
- expression level of TaDeg7 was downregulatede0
- Gene
- TaDeg7e0
- Outcome
- CO2 assimilation rate, actual photochemical efficiency of PSII, and electron transport ratee0
- Direction
- declinede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the expression level of TaDeg7 was downregulated, the photosynthetic activity including CO2 assimilation rate, actual photochemical efficiency of PSII, and electron transport rate declined”
t0“bread wheat (Triticum aestivum L.)”
Claim · model-written summary
TaDeg7 downregulation significantly increased nonphotochemical quenching.
- Taxon
- bread wheatTriticum aestivumt0
- Treatment
- expression level of TaDeg7 was downregulatede0
- Gene
- TaDeg7e0
- Outcome
- nonphotochemical quenchinge0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the expression level of TaDeg7 was downregulated, the photosynthetic activity including CO2 assimilation rate, actual photochemical efficiency of PSII, and electron transport rate declined while the nonphotochemical quenching increased significantly”
t0“bread wheat (Triticum aestivum L.)”
Claim · model-written summary
Under high light, BSMV:TaDeg7 plants accumulated more soluble sugar, malondialdehyde, and superoxide anion.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- BSMV:TaDeg7e0
- Treatment
- high lighte0
- Outcome
- soluble sugar, malondialdehyde, and superoxide anione0
- Direction
- moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When grown in high light, the BSMV:TaDeg7 plants accumulated more soluble sugar, malondialdehyde, and superoxide anion”
t0“bread wheat (Triticum aestivum L.)”
Claim · model-written summary
Under high light, BSMV:TaDeg7 plants had lower superoxide dismutase activity and less ascorbic acid.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- BSMV:TaDeg7e0
- Treatment
- high lighte0
- Outcome
- superoxide dismutase activity and less ascorbic acide0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When grown in high light, the BSMV:TaDeg7 plants accumulated more soluble sugar, malondialdehyde, and superoxide anion but had lower superoxide dismutase activity and less ascorbic acid”
t0“bread wheat (Triticum aestivum L.)”
Claim · model-written summary
Under high light, TaPsbA and TarbcS expression was repressed in BSMV:TaDeg7 plants.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- BSMV:TaDeg7e0
- Treatment
- high lighte0
- Gene
- TaPsbA and TarbcSe0
- Outcome
- expression levels of TaPsbA and TarbcSe0
- Direction
- repressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the expression levels of TaPsbA and TarbcS were repressed in the BSMV:TaDeg7 plants in high light”
t0“bread wheat (Triticum aestivum L.)”
Claim · model-written summary
BSMV:TaDeg7 plants were more sensitive to high-light stress.
- Taxon
- bread wheatTriticum aestivumt0
- Material
- BSMV:TaDeg7e0
- Treatment
- high-light stresse0
- Outcome
- sensitive to high-light stresse0
- Direction
- more sensitivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The BSMV:TaDeg7 plants also were more sensitive to high-light stress”
t0“bread wheat (Triticum aestivum L.)”
Claim · model-written summary
The authors proposed TaDeg7 as a potential target for improving wheat radiation-use efficiency under high light.
- Taxon
- wheatTriticum aestivume0
- Gene
- TaDeg7e0
- Outcome
- radiation-use efficiency improvemente0
- Qualifier
- may be a potential targete0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TaDeg7 may be a potential target for wheat radiation-use efficiency improvement against high light stress”
The same questions in other papers
light · physiology: oxidative · Triticum aestivum (wheat)Positive and negative results
3 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
6 papers more in this group
See all 10 papers →light · physiology: antioxidant enzymes · Triticum aestivum (wheat)Positive and negative results
6 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →light · molecular: expression · Triticum aestivum (wheat)Positive and negative results
6 papers in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- positive
16 papers more in this group
See all 20 papers →loss of function · physiology: photosynthesis · Triticum aestivum (wheat)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.