Variation in root growth responses of sweet potato to hypoxia and waterlogging

Nguyen, Loc Van; Le, Tri Manh; Ta, Phuong Diep Vien; Tran, Giang Hoai; Rumanzi, Mbaraka Saidi; Tang, Hanh Thi; Nguyen, Long V.

doi:10.1007/s42535-020-00117-6

Cited by 5 publications

(6 citation statements)

References 30 publications

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“…Seeds of two double-haploid (DH) lines of cucumber, i.e., DH2 (WL-T) and DH4 (WL-S), provided by KHiNO Polan (Poland), with contrasting responses to oxygen deprivation in the soil [10], were sown in 40-cell multi-pots (0.23 dm 3 each cell) which were filled with Klasmann KTS-2 peat substrate (Klasmann; Geeste, Germany) containing (in mg dm −3 ) 250-500 N, 170-230 P 2 O 5 , 320-500 K 2 O, and 80-120 Mg. The plants were cultivated under controlled conditions in a greenhouse and were lit with supplementary radiation (high pressure sodium lamps) to sustain a 16/8 h light/dark regime at 27 • C during the day and 24 • C during the night.…”

Section: Plant Materials and Experiments Conditionsmentioning

confidence: 99%

“…The percent volumetric water content (VWC) was measured using a Delta-T Devices SM150 soil moisture sensor kit (Delta-T Devices Ltd.; Cambridge, UK) before stress treatment and, if needed, plants were watered to obtain a soil moisture level up to 30%. The root zone and hypocotyls at a height of around 4-7 cm of the plants in the 1xH group and 2xH group were waterlogged for 7 days in deep plastic trays (600 × 400 × 200 cm 3 ). Then, plants were taken out of the water and stayed unstressed for 14 days (Rec).…”

Section: Stress Treatmentmentioning

confidence: 99%

“…Among the negative effects of climate change are more frequent violent downpours that cause local flooding, which, in turn, lead to long-term waterlogging of plants. As a consequence, this means a reduction in oxygen availability in the plant root zone, i.e., hypoxia [ 1 , 2 , 3 ]. Additional factors that trigger long-term hypoxia in the root system are compacted soil and poor substrate aeration [ 4 ], even in drought areas [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

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Long-Term Waterlogging as Factor Contributing to Hypoxia Stress Tolerance Enhancement in Cucumber: Comparative Transcriptome Analysis of Waterlogging Sensitive and Tolerant Accessions

Kęska

Szcześniak

Makałowska

et al. 2021

Genes

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Waterlogging (WL), excess water in the soil, is a phenomenon often occurring during plant cultivation causing low oxygen levels (hypoxia) in the soil. The aim of this study was to identify candidate genes involved in long-term waterlogging tolerance in cucumber using RNA sequencing. Here, we also determined how waterlogging pre-treatment (priming) influenced long-term memory in WL tolerant (WL-T) and WL sensitive (WL-S) i.e., DH2 and DH4 accessions, respectively. This work uncovered various differentially expressed genes (DEGs) activated in the long-term recovery in both accessions. De novo assembly generated 36,712 transcripts with an average length of 2236 bp. The results revealed that long-term waterlogging had divergent impacts on gene expression in WL-T DH2 and WL-S DH4 cucumber accessions: after 7 days of waterlogging, more DEGs in comparison to control conditions were identified in WL-S DH4 (8927) than in WL-T DH2 (5957). Additionally, 11,619 and 5007 DEGs were identified after a second waterlogging treatment in the WL-S and WL-T accessions, respectively. We identified genes associated with WL in cucumber that were especially related to enhanced glycolysis, adventitious roots development, and amino acid metabolism. qRT-PCR assay for hypoxia marker genes i.e., alcohol dehydrogenase (adh), 1-aminocyclopropane-1-carboxylate oxidase (aco) and long chain acyl-CoA synthetase 6 (lacs6) confirmed differences in response to waterlogging stress between sensitive and tolerant cucumbers and effectiveness of priming to enhance stress tolerance.

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Section: Plant Materials and Experiments Conditionsmentioning

confidence: 99%

Section: Stress Treatmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Long-Term Waterlogging as Factor Contributing to Hypoxia Stress Tolerance Enhancement in Cucumber: Comparative Transcriptome Analysis of Waterlogging Sensitive and Tolerant Accessions

Kęska

Szcześniak

Makałowska

et al. 2021

Genes

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“…Respiration under hypoxia becomes anaerobic, which results in the excessive production of reactive oxygen species (ROS) and effects on biochemical and physiological processes, which can lead to cell death depending on the species and duration of hypoxia (Irfan et al 2010;Herzog et al 2016). An excess of water can reduce shoot and tuber growth in root vegetables such as radish (Wan and Kang 2006) and sweet potato (Nguyen et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Radish (Raphanus sativus L.) responds to exogenous ascorbic acid and irrigation levels

Henschel

Soares

Figueiredo

et al. 2022

Preprint

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Plant growth and development depend on water availability and a scarcity or excess can reduce the production of root crops such as radishes. Thus, adequate irrigation levels for radish plants are essential avoid water stress, and to develop strategies to overcome negative stress effects to improve tuber production. Here, we aimed to determine the effects of exogenous ascorbic acid (AA) and irrigation levels on radish growth, biomass allocation and gas exchange. Radish plants were irrigated with a water holding capacity (WHC) of 100% (W100), 70% (W70) and 50% (W50) and foliar sprayed with 0 and 2 mM AA. Growth parameters (root diameter, length and volume; and leaf number and area), biomass accumulation (shoot and root fresh weight; shoot, root and total dry weight), biomass allocation (shoot/root ratio and organ mass fractions) and gas exchange (carbon assimilation rate, stomatal conductance, transpiration, intercellular CO2 concentration and instantaneous carboxylation efficiency) were evaluated. The growth of radish plants was impaired when irrigated with W100, probably due to waterlogging the soil, which reduced shoot and root growth and the carbon assimilation rate (A) compared with W50 and W70. Ascorbic acid affected biomass allocation and instantaneous carboxylation efficiency (A/Ci), but not growth and biomass accumulation. W70 was the optimal condition for radish growth and biomass accumulation, regardless of exogenous AA.

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“…In comparison, non‐destructive methods such as the minirhizotron technique are more efficient in dynamic monitoring since continuous observations are made on the same individual plants. Currently, minirhizotron techniques have been widely used to monitor root morphological growth in many crops under various growth environments (Cheng et al, 1990; Dylan et al, 2007; Hulugalle et al, 2015; Munoz‐Romero et al, 2010; Nguyen et al, 2020), but specific applications concerning cotton waterlogging stress are insufficient. Thus, this study aimed to apply the minirhizotron technique in a lysimeter experiment to reveal the dynamic responses of cotton root morphological characteristics under different waterlogging conditions.…”

Section: Introductionmentioning

confidence: 99%

Determining the dynamic responses of cotton root morphological characteristics under waterlogging stress using the minirhizotron technique

Qian

Huang

Zeng

et al. 2022

Irrigation and Drainage

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Roots are important in plant adaption to waterlogging stress. Zero-day (control), 8-day (moderate) and 14-day waterlogging (heavy) stresses were applied on lysimeter-grown cotton plants at flowering. The dynamics of total root length, root surface area, root volume and root number were traced using the minirhizotron technique. The results showed that the rapid root morphological growth period of non-stressed cotton occurred from the early squaring stage to the mid-late flowering stage. The two waterlogging treatments significantly stimulated root morphological growth compared with the control, but the stimulatory effect occurred more than 23 days after waterlogging termination. The stimulatory effect of heavy waterlogging stress was stronger and lasted longer than that of moderate waterlogging. The stressed cotton root system shifted its morphology centre from the upper soil layers (0-24 cm) to the deep layers (24-60 cm). Waterlogging stress obviously stimulated the morphological growth of roots with diameters <2.0 mm (especially those with diameters <1.0 mm) but had little impact on thicker roots. These results provide references for cotton adaptation under waterlogging stress.cotton, field drainage, minirhizotron, root, waterlogging RésuméLes racines jouent un rôle important dans l'adaptation des plantes au stress hydrique. Des stress de l'engorgement de jour zéro (contrôle), de 8 jours (modéré) et de 14 jours (lourd) ont été appliqués aux plantes de coton cultivés en lysimètre au moment de la floraison. La dynamique de la longueur totale des racines, de leur surface, de leur volume et de leur nombre a été suivie à l'aide Article title in French: Détermination des réponses dynamiques des caractéristiques morphologiques des racines de coton sous stress hydrique à l'aide de la technique du minirhizotron.

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Variation in root growth responses of sweet potato to hypoxia and waterlogging

Cited by 5 publications

References 30 publications

Long-Term Waterlogging as Factor Contributing to Hypoxia Stress Tolerance Enhancement in Cucumber: Comparative Transcriptome Analysis of Waterlogging Sensitive and Tolerant Accessions

Long-Term Waterlogging as Factor Contributing to Hypoxia Stress Tolerance Enhancement in Cucumber: Comparative Transcriptome Analysis of Waterlogging Sensitive and Tolerant Accessions

Radish (Raphanus sativus L.) responds to exogenous ascorbic acid and irrigation levels

Determining the dynamic responses of cotton root morphological characteristics under waterlogging stress using the minirhizotron technique

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