Drought-Stress Induced Physiological and Molecular Changes in Plants 2.0

Hura, Tomasz; Hura, Katarzyna; Ostrowska, Agnieszka

doi:10.3390/ijms24021773

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…Terrestrial plants, being immobile organisms, constantly experience challenges by different adverse conditions, in particular, water scarcity [ 1 , 2 ]. Throughout their ontogeny, plants require large amounts of water for normal functioning; therefore, a water shortage has a negative impact on multiple aspects of the whole plant metabolism [ 3 , 4 ]. Drought stress impairs seed germination and seedling growth and retards subsequent plant development, which ultimately results in growth reduction and a declined yield.…”

Section: Introductionmentioning

confidence: 99%

“…Drought adversely affects numerous physiological and biochemical processes in plants, including cell elongation and division, water and nutrition uptake, osmotic adjustment, transpiration, photosynthesis, and respiration [ 5 , 6 ]. Plants have to adapt to changing environments and can develop a wide range of protective responses and adaptive mechanisms which allows for the diminishing of the detrimental effects of drought stress [ 2 , 4 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

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24-Epibrassinolide Reduces Drought-Induced Oxidative Stress by Modulating the Antioxidant System and Respiration in Wheat Seedlings

Avalbaev,

Fedyaev,

Lubyanova

et al. 2024

Plants

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Brassinosteroids (BRs) represent a group of plant signaling molecules with a steroidal skeleton that play an essential role in plant adaptation to different environmental stresses, including drought. In this work, the effect of pretreatment with 0.4 µM 24-epibrassinolide (EBR) on the oxidant/antioxidant system in 4-day-old wheat seedlings (Triticum aestivum L.) was studied under moderate drought stress simulated by 12% polyethylene glycol 6000 (PEG). It was revealed that EBR-pretreatment had a protective effect on wheat plants as evidenced by the maintenance of their growth rate, as well as the reduction in lipid peroxidation and electrolyte leakage from plant tissues under drought conditions. This effect was likely due to the ability of EBR to reduce the stress-induced accumulation of reactive oxygen species (ROS) and modulate the activity of antioxidant enzymes. Meanwhile, EBR pretreatment enhanced proline accumulation and increased the barrier properties of the cell walls in seedlings by accelerating the lignin deposition. Moreover, the ability of EBR to prevent a drought-caused increase in the intensity of the total dark respiration and the capacity of alternative respiration contributes significantly to the antistress action of this hormone.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

24-Epibrassinolide Reduces Drought-Induced Oxidative Stress by Modulating the Antioxidant System and Respiration in Wheat Seedlings

Avalbaev,

Fedyaev,

Lubyanova

et al. 2024

Plants

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“…Each of these can face drought threats, causing significant decreases in productivity, but the susceptibility differs from one system to another. Drought-related losses in crop productivity might be lower under organic compared to conventional farming due to higher soil organic carbon content and more abundant plant symbionts in organic cropping systems, which potentially contribute to improved soil water retention and aggregation (Banerjee et al 2019;Büchi et al 2022;Schärer et al 2022;Hura et al 2023;Liu et al 2023;Wittwer et al 2023). Drought related grain yield reduction when comparing organic farming and conservation tillage practices was 34, 23 and 17% lower in the organic system for maize, pea-barley, and winter wheat, respectively (Wittwer et al 2023).…”

Section: Impacts On Plants and Farming Systemsmentioning

confidence: 99%

Drought Stress Under a Nano-Farming Approach: A Review

Sári,

Ferroudj,

Dávid

et al. 2024

Egypt.J. Soil Sci.

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NGOING climate change is leading to more extreme weather, which affects agriculture in various ways. In semi-arid regions of the world, and even some humid areas, drought stress is becoming more frequent. Prolonged drought periods lead to severe damages to cultivated plants, which impacts water and food resources. This review investigates how drought stress impacts plants and how management practices can be utilized to reduce the negative effects. Special attention is given to nano-farming where application of nanomaterials may ameliorate drought stress by increasing enzymatic antioxidants and decreasing generation of reactive oxygen species (ROS). Despite the promising results of nano-farming we conclude that further research is required, particularly to investigate potential negative effects, for example on nano-toxicity where particles can enter groundwater or into the food chain. Finally, drought stress is a complexed problem that affects all living organisms. A quick fix is not possible, but humankind needs to collaborate and work for a better future for all.

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“…These changes include the closure of stomata to reduce water loss, reduced photosynthesis, and increased production of stress hormones, such as abscisic acid (ABA). Drought stress adversely affects plants, which can vary depending on the severity and duration of the stress, plant species, and cultivars [4]. Therefore, different techniques are needed to enhance drought stress tolerance in different plants.…”

Section: Introductionmentioning

confidence: 99%

Brevundimonas vesicularis (S1T13) Mitigates Drought-Stress-Associated Damage in Arabidopsis thaliana

Tran,

Al Azzawi,

Khan

et al. 2023

IJMS

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Drought stress is a significant threat to agricultural productivity and poses challenges to plant survival and growth. Research into microbial plant biostimulants faces difficulties in understanding complicated ecological dynamics, molecular mechanisms, and specificity; to address these knowledge gaps, collaborative efforts and innovative strategies are needed. In the present study, we investigated the potential role of Brevundimonas vesicularis (S1T13) as a microbial plant biostimulant to enhance drought tolerance in Arabidopsis thaliana. We assessed the impact of S1T13 on Col-0 wild-type (WT) and atnced3 mutant plants under drought conditions. Our results revealed that the inoculation of S1T13 significantly contributed to plant vigor, with notable improvements observed in both genotypes. To elucidate the underlying mechanisms, we studied the role of ROS and their regulation by antioxidant genes and enzymes in plants inoculated with S1T13. Interestingly, the inoculation of S1T13 enhanced the activities of GSH, SOD, POD, and PPO by 33, 35, 41, and 44% in WT and 24, 22, 26, and 33% in atnced3, respectively. In addition, S1T13 upregulated the expression of antioxidant genes. This enhanced antioxidant machinery played a crucial role in neutralizing ROS and protecting plant cells from oxidative damage during drought stress. Furthermore, we investigated the impact of S1T13 on ABA and drought-stress-responsive genes. Similarly, S1T13 modulated the production of ABA and expression of AO3, ABA3, DREB1A, and DREB2A by 31, 42, 37, 41, and 42% in WT and 20, 29, 27, 38, and 29% in atnced3. The improvement in plant vigor, coupled with the induction of the antioxidant system and modulation of ABA, indicates the pivotal role of S1T13 in enhancing the drought stress tolerance of the plants. Conclusively, the current study provides valuable insights for the application of multitrait S1T13 as a novel strain to improve drought stress tolerance in plants and could be added to the consortium of biofertilizers.

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Drought-Stress Induced Physiological and Molecular Changes in Plants 2.0

Abstract: Plant adaptation to soil drought is a topic that is currently under investigation [...]

Cited by 7 publications

References 8 publications

24-Epibrassinolide Reduces Drought-Induced Oxidative Stress by Modulating the Antioxidant System and Respiration in Wheat Seedlings

24-Epibrassinolide Reduces Drought-Induced Oxidative Stress by Modulating the Antioxidant System and Respiration in Wheat Seedlings

Drought Stress Under a Nano-Farming Approach: A Review

Brevundimonas vesicularis (S1T13) Mitigates Drought-Stress-Associated Damage in Arabidopsis thaliana

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