Cell death induced by fumonisin B1 in two maize hybrids: correlation with oxidative status biomarkers and salicylic and jasmonic acids imbalances

Otaiza-González, Santiago N.; Mary, Verónica S.; Arias, Silvina L.; Bertrand, Lidwina; Vélez, Patricio; Rodríguez, María Guadalupe Castro; Rubinstein, H.R.; Theumer, Martín G.

doi:10.1007/s10658-022-02469-y

Cited by 6 publications

(8 citation statements)

References 62 publications

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“…High lipid peroxidation (expressed in terms of MDA) directly corresponds to enhanced oxidative stress producing more reactive lipid peroxide radicals and disrupting structural and functional properties of lipids under FB1 stress (Qu et al 2022). Likewise, more EL from FB1-treated leaves denotes cell death induced by an oxidative burst and is dependent on the applied concentration of FB1 (Otaiza-González et al 2022). Intriguingly, MDA content was more pronounced in FB1-treated WT plants as compared to controls and Nr plants.…”

Section: Discussionmentioning

confidence: 99%

Fumonisin B1-Induced Oxidative Burst Perturbed Photosynthetic Activity and Affected Antioxidant Enzymatic Response in Tomato Plants in Ethylene-Dependent Manner

Iqbal

Czékus

Angeli³

et al. 2022

J Plant Growth Regul

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Fumonisin B1 (FB1) is a harmful mycotoxin produced by Fusarium species, which results in oxidative stress leading to cell death in plants. FB1 perturbs the metabolism of sphingolipids and causes growth and yield reduction. This study was conducted to assess the role of ethylene in the production and metabolism of reactive oxygen species in the leaves of wild type (WT) and ethylene receptor mutant Never ripe (Nr) tomato and to elucidate the FB1-induced phytotoxic effects on the photosynthetic activity and antioxidant mechanisms triggered by FB1 stress. FB1 exposure resulted in significant ethylene emission in a concentration-dependent manner in both genotypes. Moreover, FB1 significantly affected the photosynthetic parameters of PSII and PSI and activated photoprotective mechanisms, such as non-photochemical quenching in both genotypes, especially under 10 µM FB1 concentration. Further, the net photosynthetic rate and stomatal conductance were significantly reduced in both genotypes in a FB1 dose-dependent manner. Interestingly, lipid peroxidation and loss of cell viability were also more pronounced in WT as compared to Nr leaves indicating the role of ethylene in cell death induction in the leaves. Thus, FB1-induced oxidative stress affected the working efficiency of PSI and PSII in both tomato genotypes. However, ethylene-dependent antioxidant enzymatic defense mechanisms were activated by FB1 and showed significantly elevated levels of superoxide dismutase (18.6%), ascorbate peroxidase (129.1%), and glutathione S-transferase activities (66.62%) in Nr mutants as compared to WT tomato plants confirming the role of ethylene in the regulation of cell death and defense mechanisms under the mycotoxin exposure.

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Section: Discussionmentioning

confidence: 99%

Fumonisin B1-Induced Oxidative Burst Perturbed Photosynthetic Activity and Affected Antioxidant Enzymatic Response in Tomato Plants in Ethylene-Dependent Manner

Iqbal

Czékus

Angeli³

et al. 2022

J Plant Growth Regul

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“…The levels of indole acetic acid (IAA) and salicylic acid (SA) in 7- day old moss protonemta were quantified. The extraction was carried out according to the method by ( Otaiza-González et al., 2022 ), with some modifications. Briefly, 50-100 mg of tissue previously pulverized with liquid N 2 were weighed, homogenized with 500 μL of 1-propanol/H 2 O/concentrated HCl (2:1:0.002; v/v/v), and stirred for 30 minutes at 4°C.…”

Section: Methodsmentioning

confidence: 99%

Autophagy modulates growth and development in the moss Physcomitrium patens

et al. 2022

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Physcomitrium patens apical growing protonemal cells have the singularity that they continue to undergo cell divisions as the plant develops. This feature provides a valuable tool to study autophagy in the context of a multicellular apical growing tissue coupled to development. Herein, we showed that the core autophagy machinery is present in the moss P. patens, and characterized the 2D and 3D growth and development of atg5 and atg7 loss-of-function mutants under optimal and nutrient-deprived conditions. Our results showed that 2D growth of the different morphological and functional protonemata apical growing cells, chloronema and caulonema, is differentially modulated by this process. These differences depend on the protonema cell type and position along the protonemal filament, and growth condition. As a global plant response, the absence of autophagy favors the spread of the colony through protonemata growth at the expense of a reduction of the 3D growth, such as the buds and gametophore development, and thus the adult gametophytic and reproductive phases. Altogether this study provides valuable information suggesting that autophagy has roles during apical growth with differential responses within the cell types of the same tissue and contributes to life cycle progression and thus the growth and development of the 2D and 3D tissues of P. patens.

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“…The levels of indole acetic acid (IAA) and salicylic acid (SA) in the aerial portion of plants were quantified. The extraction was carried out according to the method by (Otaiza-González et al ., 2022), with some modifications. Briefly, 50-100 mg of tissue previously pulverized with liquid N 2 were weighed, homogenized with 500 μL of 1-propanol/H 2 O/concentrated HCl (2:1:0.002; v/v/v), and stirred for 30 minutes at 4 °C.…”

Section: Methodsmentioning

confidence: 99%

Autophagy modulates apical growth and development in the moss Physcomitrium patens

Pettinari

Finello

Rojas

et al. 2022

Preprint

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Different to root hairs and pollen tubes, Physcomitrium patens apical growing protonemal cells have the singularity that they continue to undergo cell divisions as the plant develops, allowing to study autophagy in the context of a multicellular apical growing tissue coupled to development. Herein, we showed that the core autophagy machinery is present in the moss P. patens, and deeply characterized the growth and development of wild-type, atg5 and atg7 loss-of-function mutants under optimal and nutrient-deprived conditions. Our results showed that the growth of the different morphological and functional protonemata apical growing cells, chloronema and caulonema, is differentially modulated by this process. These differences depend on the protonema cell type and position along the protonemal filament, and growth condition. As a global plant response, the absence of autophagy triggers the spread of the colony through protonemata growth at the expense of a reduction in buds and gametophore development, and thus the adult gametophytic and reproductive phases. Altogether this study provides valuable information indicating that autophagy has roles during apical growth with differential responses within the cell types of the same tissue and contributes to life cycle progression and thus the development of the 2D and 3D tissues of P. patens.HIGHLIGHTAutophagy is differentially induced in protonemal cells, and contributes to apical growth, life cycle progression, and thus the development of the 2D and 3D tissues of P. patens.

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Cell death induced by fumonisin B1 in two maize hybrids: correlation with oxidative status biomarkers and salicylic and jasmonic acids imbalances

Cited by 6 publications

References 62 publications

Fumonisin B1-Induced Oxidative Burst Perturbed Photosynthetic Activity and Affected Antioxidant Enzymatic Response in Tomato Plants in Ethylene-Dependent Manner

Fumonisin B1-Induced Oxidative Burst Perturbed Photosynthetic Activity and Affected Antioxidant Enzymatic Response in Tomato Plants in Ethylene-Dependent Manner

Autophagy modulates growth and development in the moss Physcomitrium patens

Autophagy modulates apical growth and development in the moss Physcomitrium patens

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