Response of the spring wheat–cereal aphid system to drought: support for the plant vigour hypothesis

Saska, Pavel; Skuhrovec, Jiří; Platková, Hana; Kosová, Klára; Tylová, Edita; Tuan, Shu‐Jen; Vítámvás, Pavel

doi:10.1007/s10340-022-01514-3

Cited by 7 publications

(20 citation statements)

References 55 publications

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“…Septima revealed higher Yp and Yp100 values than Quintus across the different experiment variants. In accordance, Quintus revealed higher WSD values than Septima across different experiment variants (Saska et al, 2022). Similar patterns were also observed for growth-related characteristics, i.e., total aboveground biomass and leaf length which clustered together with Yp and Yp100 values.…”

Section: Effects Of Water Deficitsupporting

confidence: 79%

“…In these conditions, we found a gradual decrease in leaf biomass osmotic potential at full saturation with an increasing level of water deficit in both cultivars, but the tolerant Septima seemed to be less affected ( Saska et al., 2022 ). Aphids further increased the level of stress in all irrigation regimes except for the severe level of stress ( Saska et al., 2022 ). The aphid population increased best on plants grown under optimum conditions, followed by plants well-adapted to drought ( Saska et al., 2022 ).…”

Section: Introductionmentioning

confidence: 86%

“…Aphids further increased the level of stress in all irrigation regimes except for the severe level of stress ( Saska et al., 2022 ). The aphid population increased best on plants grown under optimum conditions, followed by plants well-adapted to drought ( Saska et al., 2022 ). This is because these plants likely provided a good nutritional source due to the enhanced accumulation of osmolytes in leaf tissues.…”

Section: Introductionmentioning

confidence: 97%

“…Our study thus has a 2 × 3 × 2 factorial design with 12 experiment variants and 3 biological replicates. The plant response at the morphophysiological level and the aphid response at the population level were reported in our previous study ( Saska et al., 2022 ) and are briefly summarized in Supplementary Tables S1 and S2 , respectively. In these conditions, we found a gradual decrease in leaf biomass osmotic potential at full saturation with an increasing level of water deficit in both cultivars, but the tolerant Septima seemed to be less affected ( Saska et al., 2022 ).…”

Section: Introductionmentioning

confidence: 99%

“…The plant response at the morphophysiological level and the aphid response at the population level were reported in our previous study ( Saska et al., 2022 ) and are briefly summarized in Supplementary Tables S1 and S2 , respectively. In these conditions, we found a gradual decrease in leaf biomass osmotic potential at full saturation with an increasing level of water deficit in both cultivars, but the tolerant Septima seemed to be less affected ( Saska et al., 2022 ). Aphids further increased the level of stress in all irrigation regimes except for the severe level of stress ( Saska et al., 2022 ).…”

Section: Introductionmentioning

confidence: 99%

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Proteomic responses of two spring wheat cultivars to the combined water deficit and aphid (Metopolophium dirhodum) treatments

et al. 2022

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In the field, plants usually have to face the combined effects of abiotic and biotic stresses. In our study, two spring wheat cultivars—Septima and Quintus—were subjected to three water regimes [70%, 50%, and 40% soil water capacity (SWC)], aphid (Metopolophium dirhodum) infestation, or the combination of both stresses, i.e., water deficit (50%, 40% SWC) and aphids. The study has a 2 × 3 × 2 factorial design with three biological replicates. In the present study, the results of proteomic analysis using 2D-DIGE followed by MALDI-TOF/TOF protein identification are presented. Water deficit but also aphid infestation led to alterations in 113 protein spots including proteins assigned to a variety of biological processes ranging from signaling via energy metabolism, redox regulation, and stress and defense responses to secondary metabolism indicating a long-term adaptation to adverse conditions. The absence of specific proteins involved in plant response to herbivorous insects indicates a loss of resistance to aphids in modern wheat cultivars during the breeding process and is in accordance with the “plant vigor hypothesis.” Septima revealed enhanced tolerance with respect to Quintus as indicated by higher values of morphophysiological characteristics (fresh aboveground biomass, leaf length, osmotic potential per full water saturation) and relative abundance of proteins involved in mitochondrial respiration and ATP biosynthesis.

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Section: Effects Of Water Deficitsupporting

confidence: 79%

Section: Introductionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Proteomic responses of two spring wheat cultivars to the combined water deficit and aphid (Metopolophium dirhodum) treatments

et al. 2022

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Population-level responses of aphids to pulsed drought stress

Saska,

Skuhrovec,

Platková

et al. 2024

J Pest Sci

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The first aim of this study was to test the pulsed stress hypothesis on a system consisting of young spring wheat (Triticum aestivum L.) and the rose-grain aphid Metopolophium dirhodum (Walker) by following the age-stage, two-sex life table theory. This hypothesis predicts that fluid-feeding insects benefit from feeding on plants intermittently stressed by drought due to the increased nutrient availability and restored cell turgor. Our second aim was to illustrate the risk of drawing different conclusions if based on a single or a small subset of parameters or if the entire lifespan of a generation is not covered compared to if the study was conducted at the population level. We applied periods of drought stress (soil water capacity, SWC = 40%) on four occasions relative to the population development of the aphids and compared those treatments with well-watered (SWC = 70%) and continuous stress conditions (SWC = 40%). The timing of the stresses appeared to be important in determining the effect on aphid performance. Although we found some improvement in fecundity when the stress occurred before the aphids were placed on the plants, the overall effect of the early-timed pulsed stress treatments on the rate of increase was negative compared to the well-watered control, which was mainly due to prolonged nymph development. The drought pulse that was timed late (the second week of aphid reproduction) did not show any effect relative to the well-watered control. This study therefore provides no clear support for the validity of the pulsed stress hypothesis.

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Antibiosis in small grain cereals against the rose-grain aphid, Metopolophium dirhodum (Hemiptera: Aphididae)

Saska,

Skuhrovec

2024

Phytoparasitica

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Resistance against aphids is an integrated pest management tactic that enhances the economic and environmental sustainability of cereal production. The aim of our study was to assess the degree of antibiosis against Metopolophium dirhodum (Walker) (Hemiptera: Aphididae), one of the most important cereal aphids in temperate regions, in two lines of small grain cereals bred in the Crop Research Institute (CRI) of Prague: spring wheat, Triticum aestivum L. cv. ‘Rufia’, and germplasm of durum wheat, Triticum turgidum ssp. durum (Desf.) van Slageren ‘TTD40363’, under controlled laboratory conditions. Resistant spring wheat cultivar (‘Libertina’) and highly susceptible spring barley (Hordeum vulgare L. cv. ‘Sebastian’) were used for reference. The responses of M. dirhodum to each line and population growth projections were determined according to the age-stage, two-sex life table theory. We found that Rufia was susceptible and TTD40363 was rather resistant to M. dirhodum. The projected population sizes after 35 days were ~ 41,000 individuals in spring wheat Rufia and ~ 12,000 in durum wheat TTD40363, which is within the range delimited by the reference cultivars (4,000 in the highly resistant spring wheat Libertina and 77,500 in highly susceptible spring barley Sebastian). This study provides new data on small grain cereal resistance to aphids. An age-stage, two-sex life table approach was used to assess resistance to aphids on durum wheat and barley for the first time.

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Response of the spring wheat–cereal aphid system to drought: support for the plant vigour hypothesis

Cited by 7 publications

References 55 publications

Proteomic responses of two spring wheat cultivars to the combined water deficit and aphid (Metopolophium dirhodum) treatments

Proteomic responses of two spring wheat cultivars to the combined water deficit and aphid (Metopolophium dirhodum) treatments

Population-level responses of aphids to pulsed drought stress

Antibiosis in small grain cereals against the rose-grain aphid, Metopolophium dirhodum (Hemiptera: Aphididae)

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