Abstract
Abstract Fusarium graminearum and F. culmorum are the causal agents of Fusarium head blight (FHB) in cereal crops worldwide. Application of resistant cultivars is the most effective and economic method for management of FHB and reducing mycotoxin production in wheat. Understanding the physiological and biochemical mechanisms involved in basal resistance of wheat to FHB disease is limited. In this research, after screening resistance levels of eighteen wheat cultivars planted in Iran, Gaskozhen and Falat were identified as partially resistant and susceptible wheat cultivars against Fusarium spp., respectively. Also, we investigated the role of hydroxyl radical (OH − ), nitric oxide (NO), callose deposition, lipid peroxidation and protein content in basal resistance of wheat to the hemi-biotrophic and necrotrophic Fusarium species causing FHB. Nitric oxide as a signaling molecule may be involved in physiological and defensive processes in plants. Our results showed that NO generation increased in seedlings and spikes of wheat cultivars after inoculation with Fusarium species. We observed earlier and stronger callose deposition at early time points after infection by Fusarium spp. isolates than in non-infected plants, which was positively related to the resistance levels in wheat cultivars. Higher levels of OH − and malondialdehyde (MDA) accumulation (as a marker of lipid peroxidation) were observed in the Falat than in the Gaskozhen cultivar, under non-infected and infected conditions. So, estimation of lipid peroxidation could be useful to evaluate cultivars’ susceptibility. These findings can provide novel insights for better recognition of physiological and biochemical markers of FHB resistance, which could be used for rapid screening of resistance levels in wheat cultivars against this destructive fungal disease.
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
Gaskozhen was identified as a partially resistant wheat cultivar against Fusarium spp.
- Taxon
- wheat
Triticum aestivumt0 - Material
- Gaskozhene2
- Outcome
- resistance levelse2
- Qualifier
- partially resistante2
- Setting
- Irane2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat cultivars”
e2“after screening resistance levels of eighteen wheat cultivars planted in Iran, Gaskozhen and Falat were identified as partially resistant and susceptible wheat cultivars against Fusarium spp.”
Claim · model-written summary
Falat was identified as a susceptible wheat cultivar against Fusarium spp.
- Taxon
- wheatTriticum aestivumt0
- Material
- Falate2
- Outcome
- resistance levelse2
- Qualifier
- susceptiblee2
- Setting
- Irane2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat cultivars”
e2“after screening resistance levels of eighteen wheat cultivars planted in Iran, Gaskozhen and Falat were identified as partially resistant and susceptible wheat cultivars against Fusarium spp.”
Claim · model-written summary
Nitric oxide generation increased in seedlings and spikes of wheat cultivars after inoculation with Fusarium species.
- Taxon
- wheatTriticum aestivume1
- Organ / stage
- seedlings and spikese1
- Treatment
- inoculation with Fusarium speciese1
- Outcome
- NO generatione1
- Direction
- increasede1
FusariumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“NO generation increased in seedlings and spikes of wheat cultivars after inoculation with Fusarium species”
Claim · model-written summary
Callose deposition was stronger after infection by Fusarium spp. isolates than in non-infected plants.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- infection by Fusarium spp. isolatese1
- Outcome
- callose depositione1
- Direction
- strongere1
- Comparator
- non-infected plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat cultivars”
e1“We observed earlier and stronger callose deposition at early time points after infection by Fusarium spp. isolates than in non-infected plants”
Claim · model-written summary
Callose deposition was earlier at early time points after infection by Fusarium spp. isolates than in non-infected plants.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- infection by Fusarium spp. isolatese1
- Outcome
- callose depositione1
- Direction
- earliere1
- Qualifier
- at early time pointse1
- Comparator
- non-infected plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat cultivars”
e1“We observed earlier and stronger callose deposition at early time points after infection by Fusarium spp. isolates than in non-infected plants”
Claim · model-written summary
Callose deposition was positively related to the resistance levels of wheat cultivars.
- Taxon
- wheatTriticum aestivumt0
- Material
- wheat cultivarse2
- Outcome
- callose depositione1
- Direction
- increaseinferrede2
- Qualifier
- resistance levelse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat cultivars”
e1“We observed earlier and stronger callose deposition at early time points after infection by Fusarium spp. isolates than in non-infected plants”
e2“which was positively related to the resistance levels in wheat cultivars”
Claim · model-written summary
Estimation of lipid peroxidation could be useful to evaluate the susceptibility of wheat cultivars.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- lipid peroxidatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“wheat cultivars”
e2“estimation of lipid peroxidation could be useful”
The same questions in other papers
Fusarium · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
2 papers more in this group
See all 6 papers →infection · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results
13 papers in the same direction as this paper · 16 in the opposite direction
- negative
- no effect
- no effect
26 papers more in this group
See all 30 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.