The effect of antimycin A on the intensity of oxidative stress, the level of lipid peroxidation and antioxidant enzyme activities in different organs of wheat (Triticum aestivum L.) seedlings subjected to high temperature

Batjuka, Anna; Škute, Nataļja

doi:10.2298/abs160706134b

Cited by 4 publications

(2 citation statements)

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“…Additionally, the decrease in growth attributes of wheat seedlings under thermal stress may be probably due to the production of reactive oxygen species (ROS) which can pose a threat to cells by causing peroxidation of lipids and ultimately programmed cell death (PCD) [22]. Our previous findings demonstrated that in leaves and coleoptiles of etiolated wheat seedlings and grown under normal daylight conditions enhanced ROS production was induced leading to membrane biochemical and functional alterations [23][24].…”

Section: Resultsmentioning

confidence: 99%

Physiological Response of Some Wheat Cultivars to Thermal Stress

Dunaiska,

Batjuka,

Petjukevičs

et al. 2023

ETR

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Plants are exposed during their development to the influence of various stressful factors, both abiotic and biotic in natural conditions of habitation. Thermal stress is likely the most important abiotic factor that adversely affects plant growth and development. Wheat (Triticum aestivum L.) is one of the most economically important crops worldwide. In this study, three Latvian winter wheat cultivars ´Creator´, ´Galerist´, and ´Skagen´ were used as a research model that were subjected to short-term high temperature (42°C, 1 h) and analyzed for the following growth parameters (maximum length of root, length of first leaf and coleoptile as well as seedlings weight). In general, short-term high temperature caused an insignificant reduction in almost all growth criteria like the first leaf growth, coleoptile growth, seedlings weight, and maximal root growth in wheat cultivars ´Skagen´ and ´Galerist´ at the 6th day of development. Furthermore, almost all growth characteristics were stimulated by short-term high temperature in the wheat cultivar ´Creator´. A slowing of the growth processes under the influence of short-term thermal stress revealed varietal specificity on the impact of this stressor on the morphological structure of cereal, which makes it possible to diagnose the stress tolerance of wheat cultivars.

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Section: Resultsmentioning

confidence: 99%

Physiological Response of Some Wheat Cultivars to Thermal Stress

Dunaiska,

Batjuka,

Petjukevičs

et al. 2023

ETR

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“…Moreover, a decrease in growth attributes of wheat seedlings under HS could be associated with the production of reactive oxygen species (ROS) which can pose a threat to cells by causing peroxidation of lipids, oxidation of proteins, damage to nucleic acids, enzyme inhibition, activation of programmed cell death (PCD) pathway(Karuppanapandian et al, 2011). The findings of previous research showed an enhanced ROS production in leaves and coleoptiles of etiolated wheat seedlings and seedlings grown under normal daylight regime following short-term and long-term HS (42°C) which was associated with strong oxidative stress leading to membrane biochemical and functional alterations(Batjuka and Škute, 2017;Batjuka and Škute, 2019).…”

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confidence: 91%

Assessing the effect of antimycin A on morphophysiological parameters in Triticum aestivum L. exposed to high temperature

Batjuka¹,

Škute²

2021

JCEA

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The present study was conducted to investigate the evaluation of antimycin A (AA) as a modulator of the alternative respiratory pathway (AP) on the intensity of growth processes and some physiological parameters of etiolated wheat seedlings, such as maximum length of root, length of first leaf and coleoptile, fresh and dry weights at the whole plant level, leaf area as well as relative water content, saturation water deficit, degree of leaf succulence and sclerophylly.Generally, exposure to heat stress (HS) alone caused a noticeable reduction in root length (59%), leaf length (30%), plant fresh mass (10%), dry mass (14%), and leaf area (25%) which was consistent with the progressive alteration in water relations. Furthermore, the degree of leaf succulence and degree of leaf sclerophylly were severely affected by HS in wheat seedlings. However, the results demonstrated that the application of AA did not induce such a significant reduction in the leaf length (23%), coleoptile length (5%), plant fresh weight (7%), plant dry weight (3%), and leaf area (21%) as well as water relations in etiolated wheat seedlings compared to heat-stressed plants. Taken together, the activation of AP promoted a mitigating of the damaging effect of HS in wheat seedlings supporting growth processes.

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