Abstract
Abstract Drought and flooding during grain filling have become major constraints to wheat quality and yield. The impacts of water deficits and waterlogging during the grain filling on contents of high‐molecular‐weight glutenin subunits (HMW‐GS) and of glutenin macropolymers (GMP) in grains of the winter wheat cultivar Yumai 34 with high grain protein content (GPC) and Yangmai 9 with low GPC were studied. At maturity, GPC was higher under drought and lower under waterlogging compared to the control, while contents of GMP and HMW‐GS were reduced by the two water‐stress treatments. The contents of both HMW‐GS and GMP were higher in Yumai 34 than in Yangmai 9. A drought event after anthesis increased the accumulation of HMW‐GS during the early grain filling stage. By contrast, waterlogging reduced the accumulation of HMW‐GS during the whole grain filling phase. At maturity, the HMW‐GS and GMP to protein ratios were also depressed under the two water‐stress events, while the HMW‐GS to GMP ratio was very close between the three treatments in Yumai 34 and much higher under the control than the drought and waterlogging treaments in Yangmai 9. It is concluded that the variation in GMP content with various water‐stress treatments is attributed to the changing in accumulation of HMW‐GS in the grain.
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Claims 8
Claim · model-written summary
Drought after anthesis raised grain protein content relative to the control.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Grain”
e1“At maturity, GPC was higher under drought and lower under waterlogging compared to the control”
Claim · model-written summary
Waterlogging lowered grain protein content relative to the control.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Grain”
e1“At maturity, GPC was higher under drought and lower under waterlogging compared to the control”
Claim · model-written summary
The two water-stress treatments reduced the contents of GMP and HMW‐GS.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- two water‐stress treatmentse2
- Outcome
- contents of GMP and HMW‐GSe2
- Direction
- reducede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Grain”
e2“while contents of GMP and HMW‐GS were reduced by the two water‐stress treatments”
Claim · model-written summary
Contents of both HMW‐GS and GMP were higher in Yumai 34 than in Yangmai 9.
- Taxon
- wheatTriticum aestivumt0
- Material
- Yumai 34e3
- Outcome
- contents of both HMW‐GS and GMPe3
- Direction
- highere3
- Comparator
- Yangmai 9e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Grain”
e3“The contents of both HMW‐GS and GMP were higher in Yumai 34 than in Yangmai 9”
Claim · model-written summary
A drought event after anthesis increased HMW‐GS accumulation in the early grain filling stage.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- early grain filling stagee4
- Treatment
- drought event after anthesise4
- Outcome
- accumulation of HMW‐GSe4
- Direction
- increasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Grain”
e4“A drought event after anthesis increased the accumulation of HMW‐GS during the early grain filling stage”
Claim · model-written summary
Waterlogging reduced HMW‐GS accumulation during the whole grain filling phase.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- whole grain filling phasee5
- Treatment
- waterlogginge5
- Outcome
- accumulation of HMW‐GSe5
- Direction
- reducede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Grain”
e5“waterlogging reduced the accumulation of HMW‐GS during the whole grain filling phase”
Claim · model-written summary
The two water-stress events depressed the HMW‐GS and GMP to protein ratios at maturity.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- two water‐stress eventse6
- Outcome
- HMW‐GS and GMP to protein ratiose6
- Direction
- depressede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Grain”
e6“the HMW‐GS and GMP to protein ratios were also depressed under the two water‐stress events”
Claim · model-written summary
The variation in GMP content is attributed to changing HMW‐GS accumulation in the grain.
- Taxon
- wheatTriticum aestivumt0
- Gene
- HMW‐GSe7
- Outcome
- variation in GMP contente7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat Grain”
e7“the variation in GMP content with various water‐stress treatments is attributed to the changing in accumulation of HMW‐GS in the grain”
The same questions in other papers
flooding · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results
24 papers in the same direction as this paper · 8 in the opposite direction
- no effect
- positive
- positive
29 papers more in this group
See all 33 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.