Biochemical changes in ears of wheat genotypes subjected to <i>Fusarium</i> spp. attack

Marček, Tihana; Vuletić, Marija Viljevac; Španić, Valentina

doi:10.1556/018.69.2018.4.10

Cited by 5 publications

(4 citation statements)

References 40 publications

(39 reference statements)

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“…In inoculated ears of 'Apache', a PHE increase accompanied with no changes in activities of antioxidant enzymes and a decrease in PPO activity, suggests that defence response in 'Apache' is based on PHE metabolism rather than ROS scavenging anti-oxidative enzymes. This statement is in accordance with Marcek et al (2018). On the contrary, stability of phenols and PPO in inoculated ears of 'U1' implied that PHE metabolism was not involved in its resistance.…”

Section: Discussionsupporting

confidence: 82%

“…The significant decrease in H2O2 content occurred at 1 hai in 'Apache' and 'U1', as well as at 2 hai in 'Apache' inoculated by Fusarium in comparison to naturally infected plants. Marcek et al (2018) found that rapid overproduction of H2O2 under Fusarium infection caused stress started 3 h after Fusarium exposure. It suggests that decreased content of H2O2 at 1 and 2 hai in current investigation was consequence of signalling role of H2O2 rather than its ROS role (Ge et al 2013).…”

Section: Discussionmentioning

confidence: 98%

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Differences in physiological traits at the initial stage of Fusarium head blight infection in wheat

Španić¹,

Drezner²,

Vuletić³

2020

Biologia plant.

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Wheat (Triticum aestivum L.) is leading cereal crop worldwide, but its yield is highly affected due to various diseases, especially Fusarium head blight (FHB), which affects the metabolism of plants. The present study was conducted at the Agricultural Institute Osijek using three winter wheat cultivars (Apache, Bezostaya1, and U1) during 2016/2017. The objectives of our studies were to examine differences in physiological characteristics of FHB resistance among wheat cultivars in the early stage of infection. The FHB incidence and severity was the highest in 'Bezostaya1'. Results suggest that activation of some anti-oxidative enzymes in the first 2 h after Fusarium attack was not efficient to prevent disease. 'Apache', which revealed an average FHB incidence, efficiently activated defence response through phenol metabolism elevation. The most effective defence response trough activation of anti-oxidative enzymes triggered by H2O2 was revealed in 'U1', which resulted in a minimal FHB incidence and disease severity. The obtained results confirm differences in defence strategies of wheat genotypes.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 98%

Differences in physiological traits at the initial stage of Fusarium head blight infection in wheat

Španić¹,

Drezner²,

Vuletić³

2020

Biologia plant.

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“…Both SOD and CAT activities in the single mycotoxin exposure groups were not markedly altered, indicating that the determined concentration of single mycotoxin was insufficient to induce prominent oxidative stress. However, a prominent reduction was found in the high-concentration group of JOT in comparison to the corresponding single-exposure group of DON, which could be attributed to an overwhelmed antioxidant capacity [43]. MDA is the primary by-product of LPO, and an elevation in its content incarnates the degree of the cell damage caused by free radicals [44].…”

Section: Discussionmentioning

confidence: 95%

Mixture toxic impacts and the related mechanism of aflatoxin B1 and deoxynivalenol on embryonic zebrafish (Danio rerio)

Wang

Chun³

et al. 2021

Environ Sci Eur

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Background Although humans and animals are often simultaneously exposed to a variety of mycotoxins via feed and food consumption, in which aflatoxin B1 (AFB1) and deoxynivalenol (DON) is one of the most prevalent combination of mycotoxins. Many toxicological studies have merely focused on the impacts of single mycotoxins. In the present study, the combined toxicity and the related mechanism of AFB1 and DON to zebrafish (Danio rerio) were investigated. Results Results exhibited that DON had lower toxicity to embryonic zebrafish with a 7-day LC50 of 218.3 mg a.i. L−1 in comparison to AFB1 (0.031 mg a.i. L−1). The mixture of AFB1 and DON elicited an additive combined effect on zebrafish embryos. The levels of CAT, caspase-3, and T4 markedly varied in most single and mixture groups. The expressions of four genes (cas3, apaf-1, cc-chem, and cyp19a) associated with oxidative stress, cellular apoptosis, immune system, and endocrine system were markedly varied upon the mixture exposure in comparison to the corresponding single exposure of AFB1 or DON. Conclusions Our results revealed that the impacts of a mixture could not be estimated solely based on toxicities of the single mycotoxins. Taken together, our comprehensive investigation on the mycotoxin mixtures and their potential mechanisms could better reflect the reality of mycotoxin contamination in food and feed.

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“…Both SOD and CAT activities in the single mycotoxin exposure groups were not markedly altered, indicating that the determined concentration of single mycotoxin was insu cient to induce prominent oxidative stress. However, a prominent reduction was found in the high-concentration group of JOT in comparison to the corresponding single exposure group of DON, which could be attributed to an overwhelmed antioxidant capacity [43]. LPO is a reliable oxidative stress indicator since it plays a critical role in denoting cell damage.…”

Section: Discussionmentioning

confidence: 98%

Mixture Toxic Impacts and the Related Mechanism of Aflatoxin B1 and Deoxynivalenol on Embryonic Zebrafish (Danio Rerio)

Wang

Chun³

et al. 2021

Preprint

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BackgroundAlthough humans and animals are often simultaneously exposed to a variety of mycotoxins via feed and food consumption, in which aflatoxin B1 (AFB1) and deoxynivalenol (DON) is one of the most prevalent combination of mycotoxins. Many toxicological reports have merely focused on the impacts of single mycotoxins. In the present study, the combined toxicity and the related mechanism of AFB1 and DON to zebrafish (Danio rerio) were investigated. ResultsWe showed that DON had lower toxicity to embryonic zebrafish with a 7-day LC50 of 218.3 mg a.i. L-1 in comparison to AFB1 (0.031 mg a.i. L-1). The mixture of AFB1 and DON elicited an additive combined effect on zebrafish embryos. The levels of CAT, caspase-3, and T4 markedly varied in most single and mixture groups. The expressions of four genes (cas3, apaf-1, cc-chem, and cyp19a) associated with oxidative stress, cellular apoptosis, immune system, and endocrine system were markedly varied upon the mixture exposure in comparison to the corresponding single exposure of AFB1 or DON.ConclusionsOur results demonstrate that the impacts of a mixture could not be estimated solely based on toxicities of the single mycotoxins. Taken together, our comprehensive investigation on the mycotoxin mixtures and their potential mechanisms could better reflect the reality of mycotoxin contamination in food and feed.

show abstract

Biochemical changes in ears of wheat genotypes subjected to Fusarium spp. attack

Cited by 5 publications

References 40 publications

Differences in physiological traits at the initial stage of Fusarium head blight infection in wheat

Differences in physiological traits at the initial stage of Fusarium head blight infection in wheat

Mixture toxic impacts and the related mechanism of aflatoxin B1 and deoxynivalenol on embryonic zebrafish (Danio rerio)

Mixture Toxic Impacts and the Related Mechanism of Aflatoxin B1 and Deoxynivalenol on Embryonic Zebrafish (Danio Rerio)

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