Physiological, Biochemical, and Transcriptional Responses to Single and Combined Abiotic Stress in Stress-Tolerant and Stress-Sensitive Potato Genotypes

Demirel, Ufuk; Morris, Wayne L.; Ducreux, Laurence J. M.; Yavuz, Caner; Asim, Arslan; Tındaş, İlknur; Campbell, Raymond; Morris, Jenny; Verrall, Susan; Hedley, Pete E.; Gökçe, Zahide Neslihan Öztürk; Çalışkan, Sevgi; Aksoy, Emre; Çalışkan, Mehmet Emin; Taylor, Mark A.; Hancock, Robert D.

doi:10.3389/fpls.2020.00169

Cited by 89 publications

(61 citation statements)

References 86 publications

(110 reference statements)

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“…Similarly, the role of POD and CAT in ROS detoxification was found to vary in potato cultivars and suggests that the importance of ROS detoxification as a tolerance mechanism is cultivar-dependent [56]. Similarly, Demirel et al [7] reports relatively unchanged antioxidant enzymes activities in the sensitive potato cultivar 'Agria' when exposed to stress.…”

Section: Discussionmentioning

confidence: 97%

“…Potato (Solanum tuberosum L.) is the leading tuber crop [1], with beneficial nutritional impact [2,3], but is very sensitive in terms of food security [4,5]. Potato is grown in relatively cool climates and is sensitive to drought [6] due to its shallow root system [7], moderately tolerant to salinity, although highly sensitive during tubers formation [8,9]. Globally, desertification and salinization are currently affecting about 10% of arable land, which decrease yield more than 50% in major crops [10,11].…”

Section: Introductionmentioning

confidence: 99%

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Metabolomic and Biochemical Analysis of Two Potato (Solanum tuberosum L.) Cultivars Exposed to In Vitro Osmotic and Salt Stresses

Hamooh

Sattar

Wellman

et al. 2021

Plants

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Globally, many crop production areas are threatened by drought and salinity. Potato (Solanum tuberosum L.) is susceptible to these challenging environmental conditions. In this study, an in vitro approach was employed to compare the tolerance of potato cultivars ‘BARI-401’ (red skin) and ‘Spunta’ (yellow skin). To simulate ionic and osmotic stress, MS media was supplemented with lithium chloride (LiCl 20 mM) and mannitol (150 mM). GC-MS and spectrophotometry techniques were used to determine metabolite accumulation. Other biochemical properties, such as total phenols concentration (TPC), total flavonoids concentration (TFC), antioxidant capacity (DPPH free radical scavenging capacity), polyphenol oxidase (PPO), and peroxidase (POD) activities, were also measured. The two cultivars respond differently to ionic and osmotic stress treatments, with Spunta accumulating more defensive metabolites in response, indicating a higher level of tolerance. While further investigation of the physiological and biochemical responses of these varieties to drought and salinity is required, the approach taken in this paper provides useful information prior to open field evaluation.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Metabolomic and Biochemical Analysis of Two Potato (Solanum tuberosum L.) Cultivars Exposed to In Vitro Osmotic and Salt Stresses

Hamooh

Sattar

Wellman

et al. 2021

Plants

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“…For example, an increase in temperature enhances evapotranspiration that induces stresses of water-deficit and soil salinization simultaneously and has a dramatic impact on growth and productivity. A combination of abiotic stress induces a unique and complex set of responses at the physiological, metabolic, and molecular levels, which are different than what is being observed under individual stress scenarios [ 28 ]. The confluence of heat and drought stress induces the closure of stomata, whereas the individual heat stress effect prompts the opening of stomata for transpiration and assists cooling in Arabidopsis [ 74 ].…”

Section: Climate Change Triggers Abiotic Stress and Ros Generationmentioning

confidence: 99%

Abiotic Stress and Reactive Oxygen Species: Generation, Signaling, and Defense Mechanisms

et al. 2021

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Climate change is an invisible, silent killer with calamitous effects on living organisms. As the sessile organism, plants experience a diverse array of abiotic stresses during ontogenesis. The relentless climatic changes amplify the intensity and duration of stresses, making plants dwindle to survive. Plants convert 1–2% of consumed oxygen into reactive oxygen species (ROS), in particular, singlet oxygen (1O2), superoxide radical (O2•–), hydrogen peroxide (H2O2), hydroxyl radical (•OH), etc. as a byproduct of aerobic metabolism in different cell organelles such as chloroplast, mitochondria, etc. The regulatory network comprising enzymatic and non-enzymatic antioxidant systems tends to keep the magnitude of ROS within plant cells to a non-damaging level. However, under stress conditions, the production rate of ROS increases exponentially, exceeding the potential of antioxidant scavengers instigating oxidative burst, which affects biomolecules and disturbs cellular redox homeostasis. ROS are similar to a double-edged sword; and, when present below the threshold level, mediate redox signaling pathways that actuate plant growth, development, and acclimatization against stresses. The production of ROS in plant cells displays both detrimental and beneficial effects. However, exact pathways of ROS mediated stress alleviation are yet to be fully elucidated. Therefore, the review deposits information about the status of known sites of production, signaling mechanisms/pathways, effects, and management of ROS within plant cells under stress. In addition, the role played by advancement in modern techniques such as molecular priming, systems biology, phenomics, and crop modeling in preventing oxidative stress, as well as diverting ROS into signaling pathways has been canvassed.

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“…The multitude of different abiotic and biotic stressors requires plant metabolism to be highly flexible, as the mode of reprograming of metabolism depends on the type and strength of stress that plants are exposed to 1,2 . The metabolic response to changing environmental factors differs significantly between plant species 3 , as well as among ecotypes or cultivars of the same species 4–6 . Temperature affects plant development and has been shown to be an important determinant for the geographical distribution range of many temperate plant species, e.g., A. thaliana 7 .…”

Section: Introductionmentioning

confidence: 99%

Plasticity of the primary metabolome in 241 cold grown Arabidopsis thaliana accessions and its relation to natural habitat temperature

Weiszmann

Clauw

Jagoda

et al. 2020

Preprint

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In the present study, 241 natural accessions of Arabidopsis thaliana were grown under two different temperature regimes, 16 °C and 6 °C, and growth parameters were recorded together with metabolite profiles to investigate the natural variation in metabolic responses and growth rates. Primary metabolism and growth rates of accessions significantly differed between accessions and both growth conditions. Relative growth rates showed high correlations to specific metabolite pools. Metabolic distances based on whole metabolite profiles were built from principal component centroids between both growth setups. Genomic prediction using ridge-regression best linear unbiased prediction (rrBLUP) revealed a significant prediction accuracy of metabolite profiles in both conditions and metabolic distances, which suggests a tight relationship between genome and primary metabolome. GWAS analysis revealed significantly associated SNPs for a number of metabolites, especially for fumarate metabolism at low temperature. A highly significant correlation was observed between metabolic distances and maximum temperature in the original growth habitat between January and March. Inverse data-driven modelling revealed that metabolic pathway regulation and metabolic reaction elasticities distinguish accessions originating from warm and cold growth habitats.

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Physiological, Biochemical, and Transcriptional Responses to Single and Combined Abiotic Stress in Stress-Tolerant and Stress-Sensitive Potato Genotypes

Cited by 89 publications

References 86 publications

Metabolomic and Biochemical Analysis of Two Potato (Solanum tuberosum L.) Cultivars Exposed to In Vitro Osmotic and Salt Stresses

Metabolomic and Biochemical Analysis of Two Potato (Solanum tuberosum L.) Cultivars Exposed to In Vitro Osmotic and Salt Stresses

Abiotic Stress and Reactive Oxygen Species: Generation, Signaling, and Defense Mechanisms

Plasticity of the primary metabolome in 241 cold grown Arabidopsis thaliana accessions and its relation to natural habitat temperature

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