Effects of Single and Combined Drought and Salinity Stress on the Root Morphological Characteristics and Root Hydraulic Conductivity of Different Winter Wheat Varieties

Fu, Yuanyuan; Li, Penghui; Hamani, Abdoul Kader Mounkaila; Wan, Sumei; Gao, Yang; Wang, Xingpeng

doi:10.3390/plants12142694

Cited by 13 publications

(13 citation statements)

References 110 publications

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“…Recently, it was shown that drought stress, salt stress, and dual drought-salt stress obviously reduced Lpr [19,21,69]. And root length/leaf area positively and significantly affected Lpr of Hengmai 4399, Yannong 1212, and Xinmai 19 under PEG and salt stress [21]. In this experiment, seed priming strongly improved root hydraulic conductivity of H4399, Y1212, and X19 under dual PEG and salt stress to enhance root water and ion uptake capacity (Figure 8).…”

Section: Seed-priming Using Melatonin Increasing Root Hydraulic Condu...mentioning

confidence: 55%

“…However, research about the effects of melatonin on root hydraulic conductivity in wheat seedlings under drought, salt stress, and combined drought-salt stress is limited. In this study, similar to that of Fu et al [21], seeds of H4399, Y1212, and X19 pre-treated with melatonin were germinated under polyethylene glycol 6000 (PEG-6000), NaCl, and PEG-NaCl combined stress. And these seedlings were treated with stress in hydroponics.…”

Section: Introductionmentioning

confidence: 83%

“…Among root physical parameters, root hydraulic conductivity (Lpr) is a representative index, controlling hydraulic conductance and determining plant vigor under drought and salt stress [14]. Recently, it was shown that drought stress, salt stress, and dual drought-salt stress obviously reduced Lpr [19,21,69]. And root length/leaf area positively and significantly affected Lpr of Hengmai 4399, Yannong 1212, and Xinmai 19 under PEG and salt stress [21].…”

Section: Seed-priming Using Melatonin Increasing Root Hydraulic Condu...mentioning

confidence: 99%

“…[15][16][17][18][19][20]. And our recent research showed that the root hydraulic conductivity was reduced appreciably by combined drought and salinity stress in wheat varieties [21]. In addition, aquaporin genes (AQPs) regulate root hydraulic conductivity by controlling radially flowing intercellular transmembrane components in roots [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

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Seeds Priming with Melatonin Improves Root Hydraulic Conductivity of Wheat Varieties under Drought, Salinity, and Combined Stress

Fu,

Li,

et al. 2024

IJMS

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Drought and salinity stress reduce root hydraulic conductivity of plant seedlings, and melatonin application positively mitigates stress-induced damage. However, the underlying effect of melatonin priming on root hydraulic conductivity of seedlings under drought–salinity combined remains greatly unclear. In the current report, we investigated the influence of seeds of three wheat lines’ 12 h priming with 100 μM of melatonin on root hydraulic conductivity (Lpr) and relevant physiological indicators of seedlings under PEG, NaCl, and PEG + NaCl combined stress. A previous study found that the combined PEG and NaCl stress remarkably reduced the Lpr of three wheat varieties, and its value could not be detected. Melatonin priming mitigated the adverse effects of combined PEG + NaCl stress on Lpr of H4399, Y1212, and X19 to 0.0071 mL·h−1·MPa−1, 0.2477 mL·h−1·MPa−1, and 0.4444 mL·h−1·MPa−1, respectively, by modulating translation levels of aquaporin genes and contributed root elongation and seedlings growth. The root length of H4399, Y1212, and X19 was increased by 129.07%, 141.64%, and 497.58%, respectively, after seeds pre-treatment with melatonin under PEG + NaCl combined stress. Melatonin -priming appreciably regulated antioxidant enzyme activities, reduced accumulation of osmotic regulators, decreased levels of malondialdehyde (MDA), and increased K+ content in stems and root of H4399, Y1212, and X19 under PEG + NaCl stress. The path investigation displayed that seeds primed with melatonin altered the modification of the path relationship between Lpr and leaf area under stress. The present study suggested that melatonin priming was a strategy as regards the enhancement of root hydraulic conductivity under PEG, NaCl, and PEG + NaCl stress, which efficiently enhanced wheat resistant to drought–salinity stress.

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Section: Seed-priming Using Melatonin Increasing Root Hydraulic Condu...mentioning

confidence: 55%

Section: Introductionmentioning

confidence: 83%

Section: Seed-priming Using Melatonin Increasing Root Hydraulic Condu...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Seeds Priming with Melatonin Improves Root Hydraulic Conductivity of Wheat Varieties under Drought, Salinity, and Combined Stress

Fu,

Li,

et al. 2024

IJMS

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“…The drought and salinity stresses caused a reduction in root hydraulic conductivity (Lpr), root length (RL), root surface area (RS), root volume (RV), K + and N content in shoots and roots of three different wheat varieties. In contrast, increased levels of antioxidant enzyme activity, malondialdehyde (MDA) levels, osmotic adjustment, nonstructural carbon, and Na + content were all observed in the shoots and roots [ 4 ]. Biotic stress adversely affects the health of wheat plant and lead to a significant reduction in the yield and quality of the grains produced.…”

Section: Introductionmentioning

confidence: 99%

Iron/Copper/Phosphate nanocomposite as antimicrobial, antisnail, and wheat growth-promoting agent

Abdullah,

Elbialy,

Amer

et al. 2024

BMC Biotechnol

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Background One of the current challenges is to secure wheat crop production to meet the increasing global food demand and to face the increase in its purchasing power. Therefore, the current study aimed to exploit a new synthesized nanocomposite to enhance wheat growth under both normal and drought regime. The effectiveness of this nanocomposite in improving the microbiological quality of irrigation water and inhibiting the snail’s growth was also assessed. Results Upon the employed one-step synthesis process, a spherical Fe/Cu/P nanocomposite was obtained with a mean particle size of 4.35 ± 1.524 nm. Cu2+, Fe2+, and P4+ were detected in the dried nanocomposite at 14.533 ± 0.176, 5.200 ± 0.208, and 34.167 ± 0.203 mg/ml concentration, respectively. This nanocomposite was found to exert antibacterial activity against Escherichia coli and Salmonella typhi. It caused good inhibition percent against Fusarium oxysporum (43.5 ± 1.47%) and reduced both its germination rate and germination efficiency. The lethal concentration 50 (LC50) of this nanocomposite against Lanistes carinatus snails was 76 ppm. The treated snails showed disturbance in their feeding habit and reached the prevention state. Significant histological changes were observed in snail digestive tract and male and female gonads. Drought stress on wheat’s growth was mitigated in response to 100 and 300 ppm treatments. An increase in all assessed growth parameters was reported, mainly in the case of 100 ppm treatment under both standard and drought regimes. Compared to control plants, this stimulative effect was accompanied by a 2.12-fold rise in mitotic index and a 3.2-fold increase in total chromosomal abnormalities. Conclusion The finding of the current study could be employed to mitigate the effect of drought stress on wheat growth and to enhance the microbiological quality of irrigation water. This is due to the increased efficacy of the newly synthesized Fe/Cu/P nanocomposite against bacteria, fungi, and snails. This methodology exhibits potential for promoting sustainable wheat growth and water resource conservation.

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Effects of exogenous melatonin on wheat quality under drought stress and rehydration

Fu,

Li,

Liang

et al. 2024

Plant Growth Regul

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Melatonin (MT) regulates and enhances crop tolerance to drought stress. However, the effect of melatonin spraying on grain quality under drought-rehydration treatment is evaluated insu ciently currently. Here, the present study is conducted by spraying 100mM MT before wheat grain-lling and then drought-rehydration treatment is carried out. Rewatering after drought stress increased appreciably wet gluten content, sedimentation index, total protein content, and glutein content of wheat grains and decreased prolainm content, albumin content, and globulin content. And MT application effectively alleviated grain quality damage, reducing wet gluten content and glutein content. Besides, MT compensated for the oxidative damage and the membrane lipid peroxidation damage caused by drought-rehydration treatment. In addition, two drought stresses reduced signi cantly photosynthetic parameters. And MT effectively improved the photosynthetic e ciency. These results indicated that MT was feasible to enhance wheat resistance and ameliorate grain quality during drought and rehydration.Recently, with the abnormal climate and water resource scarcity, drought stress has become increasingly common, affecting the growth and development of wheat. Drought stress at critical stages (e.g., tillering, owering, and grain lling) of wheat development led to signi cant yield loss (

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Effects of Single and Combined Drought and Salinity Stress on the Root Morphological Characteristics and Root Hydraulic Conductivity of Different Winter Wheat Varieties

Cited by 13 publications

References 110 publications

Seeds Priming with Melatonin Improves Root Hydraulic Conductivity of Wheat Varieties under Drought, Salinity, and Combined Stress

Seeds Priming with Melatonin Improves Root Hydraulic Conductivity of Wheat Varieties under Drought, Salinity, and Combined Stress

Iron/Copper/Phosphate nanocomposite as antimicrobial, antisnail, and wheat growth-promoting agent

Effects of exogenous melatonin on wheat quality under drought stress and rehydration

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