Abstract
Stripe rust,caused by Puccinia striiformis f.sp.tritici(Pst),is one of the most damaging wheat plant diseases across the globe.Exploration of resistant cultivars is one of the most economic and preferred control methods of stripe rust diseases.Wheat resistance to stripe rust fungi could easily be lost due to rapid virulent variations in Pst races.Benzothiadiazole(BTH),a novel and powerful elicitor,could induce systemic acquired resistance(SAR) in plants.So far no report has focused on BTH-induced wheat resistance to stripe rust fungi at maturity growth stage.Hence in this study,wheat cultivars of Huixianhong seedlings and 97148 mature wheat plants were pre-treated with BTH and inoculated with Pst race CYR23.Disease index and control efficiencies evaluations indicated improvements in wheat resistance to Pst and induction of SAR by BTH.In Huixianhong wheat seedlings,resistance to Pst significantly increased and stripe rust disease index reduced by 29.69~49.77.Meanwhile stripe rust disease control efficiency in Huixianhong wheat seedlings after BTH treatment reached 90%.Optimum concentration and time interval of BTH pre-treatment tests also showed that 0.3 mmol?L?1 of BTH concentration and 6~7 days intervals between BTH treatment and Pst inoculation were the best.Furthermore,BTH-induced wheat resistance to Pst was noted to last at least 15 days after Pst inoculation.Mature 97148 wheat cultivar sprayed with different concentrations(0.1~1.0 mmol?L?1) of BTH showed nominal fluctuations in disease index,but with much stronger wheat resistance to Pst.Meanwhile grain yield of 0.3 mmol?L?1 BTH-treated plants reached 675.32 kg?667m?2,which was 19.3% higher than the control.The results also indicated that BTH sprayed at different wheat growth stages(e.g.,tillering,pre-jointing and tillering/pre-jointing) had no influence on the efficiency of BTH-induced wheat resistance to Pst.Compared to the control,however,BTH treatment impacted disease index of Pst and grain yield of wheat at each different growth stage.Due to stronger seedling assays,BTH-induced wheat resistance to Pst in mature plants lasted at least 60 days.In conclusion therefore,the study demonstrated that BTH induced wheat resistance to stripe rust fungi at both seedling and maturity stages.This finding was significant in controlling stripe rust disease of wheat and other field crops.
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Claims 11
Claim · model-written summary
BTH increased seedling resistance to Pst significantly.
- Taxon
- wheat
Triticum aestivume0 - Material
- Huixianhonge0
- Treatment
- BTHe1
- Interactor
- Pste0pathogen
- Outcome
- resistance to Pste0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Huixianhong wheat seedlings,resistance to Pst significantly increased”
e1“pre-treated with BTH and inoculated with Pst race CYR23”
Claim · model-written summary
BTH reduced seedling stripe rust disease index by 29.69~49.77.
- Taxon
- wheatTriticum aestivume0
- Material
- Huixianhonge0
- Treatment
- BTHe1
- Interactor
- Pste2pathogen
- Outcome
- stripe rust disease indexe0
- Direction
- reducede0
- Value
- 29.69~49.77e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In Huixianhong wheat seedlings,resistance to Pst significantly increased and stripe rust disease index reduced by 29.69~49.77”
e1“pre-treated with BTH and inoculated with Pst race CYR23”
e2“stripe rust,caused by Puccinia striiformis f.sp.tritici(Pst)”
Claim · model-written summary
BTH control efficiency against seedling stripe rust reached 90%.
- Taxon
- wheatTriticum aestivume0
- Material
- Huixianhonge0
- Treatment
- BTHe0
- Interactor
- Pste1pathogen
- Outcome
- stripe rust disease control efficiencye0
- Direction
- reachede0
- Value
- 90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stripe rust disease control efficiency in Huixianhong wheat seedlings after BTH treatment reached 90%”
e1“stripe rust,caused by Puccinia striiformis f.sp.tritici(Pst)”
Claim · model-written summary
The best pretreatment was 0.3 mmol?L?1 BTH with a 6~7 day interval.
- Taxon
- wheatTriticum aestivume1
- Treatment
- BTHe0
- Interactor
- Pste0pathogen
- Outcome
- beste0
- Value
- 0.3 mmol?L?1e0
- Qualifier
- 6~7 days intervalse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“0.3 mmol?L?1 of BTH concentration and 6~7 days intervals between BTH treatment and Pst inoculation were the best”
e1“BTH-induced wheat resistance to Pst was noted”
Claim · model-written summary
BTH-induced resistance persisted at least 15 days after inoculation.
- Taxon
- wheatTriticum aestivume0
- Treatment
- BTHe0
- Interactor
- Pste0pathogen
- Outcome
- resistance to Pste0
- Value
- at least 15 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BTH-induced wheat resistance to Pst was noted to last at least 15 days after Pst inoculation”
Claim · model-written summary
Mature 97148 wheat sprayed with BTH showed nominal disease-index fluctuations and stronger Pst resistance.
- Taxon
- wheatTriticum aestivume0
- Material
- 97148e0
- Treatment
- BTHe0
- Interactor
- Pste0pathogen
- Outcome
- wheat resistance to Pste0
- Direction
- strongere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mature 97148 wheat cultivar sprayed with different concentrations(0.1~1.0 mmol?L?1) of BTH showed nominal fluctuations in disease index,but with much stronger wheat resistance to Pst”
Claim · model-written summary
BTH-treated mature wheat yielded 675.32 kg?667m?2, 19.3% above control.
- Taxon
- wheatTriticum aestivume1
- Material
- 97148e1
- Treatment
- 0.3 mmol?L?1 BTHe0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 675.32 kg?667m?2e0
- Qualifier
- 19.3%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield of 0.3 mmol?L?1 BTH-treated plants reached 675.32 kg?667m?2,which was 19.3% higher than the control”
e1“Mature 97148 wheat cultivar”
Claim · model-written summary
Growth stage of BTH spraying did not affect induced Pst resistance efficiency.
- Taxon
- wheatTriticum aestivume0
- Treatment
- BTH sprayed at different wheat growth stagese0
- Interactor
- Pste0pathogen
- Outcome
- efficiency of BTH-induced wheat resistance to Pste0
- Direction
- no influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BTH sprayed at different wheat growth stages(e.g.,tillering,pre-jointing and tillering/pre-jointing) had no influence on the efficiency of BTH-induced wheat resistance to Pst”
Claim · model-written summary
BTH affected Pst disease index across wheat growth stages.
- Taxon
- wheatTriticum aestivume0
- Treatment
- BTH treatmente0
- Interactor
- Pste0pathogen
- Outcome
- disease index of Pste0
- Comparator
- controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control,however,BTH treatment impacted disease index of Pst and grain yield of wheat at each different growth stage”
Claim · model-written summary
BTH affected wheat grain yield across growth stages.
- Taxon
- wheatTriticum aestivume0
- Treatment
- BTH treatmente0
- Outcome
- grain yield of wheate0
- Comparator
- controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to the control,however,BTH treatment impacted disease index of Pst and grain yield of wheat at each different growth stage”
Claim · model-written summary
BTH-induced resistance in mature wheat lasted at least 60 days.
- Taxon
- wheatTriticum aestivume0
- Interactor
- Pste0pathogen
- Outcome
- resistance to Pste0
- Value
- at least 60 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BTH-induced wheat resistance to Pst in mature plants lasted at least 60 days”
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