Modulations of the antioxidants defence system in two maize hybrids during flooding stress

Lukić, Nataša; Trifković, Tanja; Kojić, Danijela; Kukavica, Biljana

doi:10.1007/s10265-021-01264-w

Cited by 15 publications

(13 citation statements)

References 86 publications

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“…Secondary metabolites such as phenolic compounds play numerous defensive roles in plant tissues, including functioning as antioxidants and feeding deterrents to herbivorous insects. This result is consistent with previous studies investigating flooding‐induced increases in the phenolic content of maize (Grace & Logan, 2000; Yordanova & Popova, 2007; Lukić et al, 2021). Such responses may be a mechanism to mitigate oxidative stress (Bors et al, 1990; Grace, 2005).…”

Section: Discussionsupporting

confidence: 93%

“…As such, phenolic compounds have high antioxidant activities (Bors et al, 1990; Grace, 2005; Foyer, 2018). During flooding, declines in photosynthesis and respiration lead to the accumulation of harmful reactive oxygen species that induce oxidative stress in plant tissues (Yan et al, 1996; Yordanova & Popova, 2007; Lukić et al, 2021). There is evidence that phenolic compounds help alleviate oxidative stress by scavenging reactive oxygen molecules, such as H 2 O 2 , that accumulate during flooding (Grace & Logan, 2000; Yordanova & Popova, 2007; Lukić et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…During flooding, declines in photosynthesis and respiration lead to the accumulation of harmful reactive oxygen species that induce oxidative stress in plant tissues (Yan et al, 1996; Yordanova & Popova, 2007; Lukić et al, 2021). There is evidence that phenolic compounds help alleviate oxidative stress by scavenging reactive oxygen molecules, such as H 2 O 2 , that accumulate during flooding (Grace & Logan, 2000; Yordanova & Popova, 2007; Lukić et al, 2021). For instance, Lukić et al (2021) reported that an increase in H 2 O 2 concentration in flooded maize was accompanied by an increase in phenolic content to cope with oxidative damage.…”

Section: Introductionmentioning

confidence: 99%

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Comparative analysis of defensive secondary metabolites in wild teosinte and cultivated maize under flooding and herbivory stress

Mleziva,

Ngumbi

2024

Physiologia Plantarum

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Climate change is driving an alarming increase in the frequency and intensity of abiotic and biotic stress factors, negatively impacting plant development and agricultural productivity. To survive, plants respond by inducing changes in below and aboveground metabolism with concomitant alterations in defensive secondary metabolites. While plant responses to the isolated stresses of flooding and insect herbivory have been extensively studied, much less is known about their response in combination. Wild relatives of cultivated plants with robust stress tolerance traits provide an excellent system for comparing how diverse plant species respond to combinatorial stress, and provide insight into potential germplasms for stress‐tolerant hybrids. In this study, we compared the below and aboveground changes in the secondary metabolites of maize (Zea mays) and a flood‐tolerant wild relative Nicaraguan teosinte (Zea nicaraguensis) in response to flooding, insect herbivory, and their combination. Root tissue was analyzed for changes in belowground metabolism. Leaf total phenolic content and headspace volatile organic compound emission were analyzed for changes in aboveground secondary metabolism. Results revealed significant differences in the root metabolome profiles of teosinte and maize. Notably, the accumulation of the flavonoids apigenin, naringenin, and luteolin during flooding and herbivory differentiated teosinte from maize. Aboveground, terpenes, including trans‐α‐bergamotene and (E)‐4,8‐dimethylnona‐1,3,7‐triene, shaped compositional differences in their volatile profiles between flooding, herbivory, and their combination. Taken together, these results suggest teosinte may be more tolerant than maize due to dynamic metabolic changes during flooding and herbivory that help relieve stress and influence plant–insect interactions.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparative analysis of defensive secondary metabolites in wild teosinte and cultivated maize under flooding and herbivory stress

Mleziva,

Ngumbi

2024

Physiologia Plantarum

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“… 10 When cotton ( Gossypium hirsutum L.) was subjected to flooding stress at different growth stages, the yield decreased in varying degrees, with a maximum yield reduction of 63%. 11 Flooding can also lead to many changes in plants, such as the reduction of aboveground and root biomass and the absorption of root nutrients, 12 13 the reduction of hydraulic conductivity, yellowing, necrosis and defoliation, 14 15 and the reduction of chlorophyll content and photosynthetic performance, 16 affect all growth stages from seed germination to vegetative and reproductive growth. Flooding can change the soil pH, redox potential, and level of hypoxia (< 21% O 2 ).…”

Section: Introductionmentioning

confidence: 99%

Physiological and comparative transcriptome analysis of the response and adaptation mechanism of the photosynthetic function of mulberry (Morus alba L.) leaves to flooding stress

Quan

Sun

Liu

et al. 2022

Plant Signaling & Behavior

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Flooding has become one of the major abiotic stresses that seriously affects plant growth and development owing to changes in the global precipitation pattern. Mulberry ( Morus alba L.) is a desirable tree spePhysocarpus amurensis Maxim andcies with high ecological and economic benefits. To reveal the response and adaptive mechanisms of the photosynthetic functions of mulberry leaves to flooding stress, chlorophyll synthesis, photosynthetic electron transfer and the Calvin cycle were investigated by physiological studies combined with an analysis of the transcriptome. Flooding stress inhibited the synthesis of chlorophyll (Chl) and decreased its content in mulberry leaves. The sensitivity of Chl a to flooding stress was higher than that of Chl b owing to the changes of CHLG (LOC21385082) and CAO (LOC21408165) that encode genes during chlorophyll synthesis. The levels of expression of Chl b reductase NYC (LOC112094996) and NYC (LOC21385774), which are involved in Chl b degradation, were upregulated on the fifteenth day of flooding, which accelerated the transformation of Chl b to Chl a , and upregulated the expression of PPH (LOC21385040) and PAO (LOC21395013). This accelerated the degradation of chlorophyll. Flooding stress significantly inhibited the photosynthetic function of mulberry leaves. A Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis of differentially expressed genes under different days of flooding stress indicated significant enrichment in Photosynthesis-antenna proteins (map00196), Photosynthesis (map00195) and Carbon fixation in photosynthetic organisms (map00710). On the fifth day of flooding, 7 and 5 genes that encode antenna proteins were identified on LHCII and LHCI, respectively. They were significantly downregulated, and the degree of downregulation increased as the trees were flooded longer. Therefore, the power of the leaves to capture solar energy and transfer this energy to the reaction center was reduced. The chlorophyll fluorescence parameters and related changes in the expression of genes in the transcriptome indicated that the PSII and PSI of mulberry leaves were damaged, and their activities decreased under flooding stress. On the fifth day of flooding, electron transfer on the PSII acceptor side of mulberry leaves was blocked, and the oxygen-evolving complex (OEC) on the donor side was damaged. On the tenth day of flooding, the thylakoid membranes of mulberry leaves were damaged. Five of the six coding genes that mapped to the OEC were significantly downregulated. Simultaneously, other coding genes located at the PSII reaction center and those located at the PSI reaction center, including Cytb6/f, PC, Fd, FNR and ATP, were also significantly down...

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“…To adverse the effects of water stress, crops exhibit specific physiological changes through self-regulation in resilience to water stress. Osmotic adjustment substances including soluble sugar, protein and proline, and antioxidant enzymes comprised of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX), as two of the most important physiological changes are increased under water stress (Nikolaeva et al, 2015; Anjum et al, 2016; Lukić et al, 2021). They all play an essential role in eliminating the damaging effects of reactive oxygen species (ROS) in plant cells in response to water stress (Huang et al, 2019; Ahmad et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Drought and flooding resistances of maize germplasm are compared and evaluated using a multivariate analysis method

Wang¹,

Ahmad²,

Wang³

et al. 2022

Preprint

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Drought and flooding stress alternately and frequently occur in Guangxi, China, and the whole world, which seriously limit maize production. Few studies focus on the different responses and evaluations of maize to drought and flooding stresses. A pot experiment with 40 varieties was conducted under well water, drought and flooding stresses. A multivariate analysis method of principal component analysis, comprehensive evaluation value, correlation analysis, stepwise regression analysis, and cluster analysis was used to evaluate the resistance of maize. Most varieties had stronger drought resistance rather than flooding resistance because of the higher antioxidant enzyme activities, osmotic adjustment substances, less reactive oxygen species, and a greater than 1.0 drought-resistance coefficient. However, there was an increment of reactive oxygen species (especially O2-), ascorbate peroxidase, peroxidase, soluble sugar, and the decrement of superoxide dismutase, catalase, soluble protein, and a lower than 1.0 of flooding-resistance coefficient of most maize varieties in flooding stress compared with well water. The superoxide dismutase, peroxidase, catalase, ascorbate peroxidase, proline, soluble sugar and protein, plant height, leaf area/plant, and stem diameter were screened out to be accurate and representative indicators to evaluate the drought and flooding resistance of maize. The study provides an insight to comprehend the different mechanisms of maize in response to drought and flooding stresses and provides a multivariate analysis method for screening the resistance of maize germplasm which could be valuable for further research and breeding of drought and flooding resistances of maize.

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Modulations of the antioxidants defence system in two maize hybrids during flooding stress

Cited by 15 publications

References 86 publications

Comparative analysis of defensive secondary metabolites in wild teosinte and cultivated maize under flooding and herbivory stress

Comparative analysis of defensive secondary metabolites in wild teosinte and cultivated maize under flooding and herbivory stress

Physiological and comparative transcriptome analysis of the response and adaptation mechanism of the photosynthetic function of mulberry (Morus alba L.) leaves to flooding stress

Drought and flooding resistances of maize germplasm are compared and evaluated using a multivariate analysis method

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