Molybdenum-induced effects on leaf ultra-structure and rhizosphere phosphorus transformation in Triticum aestivum L

Rana, Muhammad Shoaib; Sun, Xu; Imran, Muhammad; Ali, Shafaqat; Shaaban, Muhammad; Moussa, Mohamed G.; Khan, Zaid; Afzal, Javaria; Binyamin, Rana; Bhantana, Parashuram; Alam, Mufid; Din, Fakhar ud; Younas, Muhammad; Hu, Chengxiao

doi:10.1016/j.plaphy.2020.05.010

Cited by 21 publications

(10 citation statements)

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“…Further, Mo deficiency has a severe impact on plant growth, productivity, and N health and can increase tissue nitrate concentration or accumulation and decrease plant growth and yields (Imran, Hu, et al., 2019). Previous studies reported that Mo application has a significant role in enhancing wheat growth and yield (Moussa et al., 2021; Rana, Sun, Imran, Ali, et al., 2020; Rana, Sun, Imran, Khan, et al., 2020). However, Mo‐induced effects on total N uptake, fertilizer 15 N uptake, and soil N uptake in winter wheat under different Nf and Nr are not well‐documented.…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, the N application of NH 4 NO 3 and NO 3 − forms at a high concentration significantly increased N efficiency, whereas the high rate of NH 4 + showed a dramatic reduction in the N efficiency (Hachiya & Sakakibara, 2017; Wang et al., 2012). Therefore, Mo‐induced increases in N efficiency under different Nf, particularly NH 4 NO 3 and NO 3 − forms, might be due to the strengthening role of Mo on NR (Imran, Sun, et al., 2019; H. Liu et al., 2010; Rana, Sun, Imran, Ali, et al., 2020) and efficient N utilization (Yu et al., 1999).…”

Section: Discussionmentioning

confidence: 99%

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Molybdenum‐induced effects on nitrogen uptake efficiency and recovery in wheat (Triticum aestivum L.) using ¹⁵N‐labeled nitrogen with different N forms and rates

Moussa

Elyamine

et al. 2021

J. Plant Nutr. Soil Sci.

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Background: Molybdenum (Mo) is an essential microelement for higher plants and plays a significant role in nitrogen (N) metabolism, which includes nitrate reduction, assimilation, and efficient N acquisition. Its deficiency in soil may induce the reduction of N uptake and wheat yield. Aims: We aimed to explore the Mo‐induced effects on N uptake efficiency and recovery in Mo‐inefficient winter wheat cultivar using a 15N isotope tracer under different N forms (Nf) and N rates (Nr). Methods: The experiment was conducted in greenhouse conditions, and the treatments included three Nf in the form of 15NH4Cl as sole NH4+, Ca (15NO3)2 as sole NO3−, and 15NH415NO3) under two Nr [low (L) 0.05 and high (H) 0.25 g N kg–1 soil], with (+Mo) in form of [(NH4)6Mo7O24 ∙ 4H2O] and without (–Mo) Mo application. The plant biomass, Mo content, total N uptake, fertilizer 15N uptake, soil N uptake, as well as N uptake, agronomic and physiological efficiency were evaluated. Furthermore, the fertilizer 15N recovery in various wheat organs was also studied. Results: The results revealed that Mo application increased N uptake efficiency in wheat to 38.26%, 68.24%, and 71.53% when the plants are treated with low rates of NH4+, NO3−, and NH4NO3, respectively. While at a high N rate, N uptake efficiency increases to 46.26% and 45.34% in the case of NO3− and NH4NO3 treatments, respectively, and it was slightly reduced to 10.84% when plants were supplied with NH4+ form. Mo supply increased 15N recovery from fertilizer in grain organ under low N rate with all supplied Nf, that is, NH4+, NO3−, and NH4NO3, while at high N rate, Mo enhanced 15N recovery in grains organ in case of NO3− and NH4NO3 forms. Conclusion: This study shows that Mo fertilization may be a promising strategy to improve N uptake efficiency and recovery in wheat when nitrate is the main N form.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Molybdenum‐induced effects on nitrogen uptake efficiency and recovery in wheat (Triticum aestivum L.) using ¹⁵N‐labeled nitrogen with different N forms and rates

Moussa

Elyamine

et al. 2021

J. Plant Nutr. Soil Sci.

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“…Molybdenum (Mo), a necessary trace element for higher plants, plays a vital role in various plant physio-biochemical processes such as root growth, water utilization, photosynthesis, chlorophyll biosynthesis, chloroplast configuration and ultra-structural integrity, efficient N assimilation and utilization, and biosynthesis of endogenous hormones [12][13][14][15]. On the other hand, Mo has also been widely reported as a stress-resistant element to promote the reinforcement of oxidative stress tolerance to salinity [16], drought [17], low temperature [14] and ammonium stresses [18].…”

Section: Introductionmentioning

confidence: 99%

Molybdenum Supply Alleviates the Cadmium Toxicity in Fragrant Rice by Modulating Oxidative Stress and Antioxidant Gene Expression

et al. 2020

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Increasing evidence shows that cadmium (Cd) toxicity causes severe perturbations on growth performance, physio-biochemical and molecular processes in crop plants. Molybdenum (Mo), an essential trace element, plays key roles in oxidative stress tolerance of higher plants. Hence, the present study has been conducted to investigate the possible role of Mo in alleviating Cd-induced inhibitions in two fragrant rice cultivars namely Guixiangzhan (GXZ) and Meixiangzhan-2 (MXZ-2). The results revealed that Mo application enhanced the plant dry biomass by 73.24% in GXZ and 58.09% in MXZ-2 under Cd stress conditions, suggesting that Mo supplementation alleviated Cd-induced toxicity effects in fragrant rice. The enhanced Cd-tolerance in fragrant rice plants prompted by Mo application could be ascribed to its ability to regulate Cd uptake and reduce Cd-induced oxidative stress as evident by lower hydrogen peroxide levels, electrolyte leakage and malondialdehyde contents in Cd-stressed plants. The ameliorative role of Mo against Cd-toxicity also reflected through its protection to the photosynthetic pigments, proline and soluble protein. Mo also induced antioxidant defense systems via maintaining higher contents of glutathione and ascorbate as well as enhancing the ROS-detoxifying enzymes such as catalase, peroxidase, superoxide dismutase and ascorbate peroxidase activities and up-regulating transcript abundance in both fragrant rice cultivars under Cd stress. Conclusively, Mo-mediated modulation of Cd toxicity in fragrant rice was through restricting Cd uptake, maintaining photosynthetic performance and alleviating oxidative damages via the strong anti-oxidative defense systems; however, GXZ cultivar is comparatively more Cd tolerant and Mo-efficient as evident from the less growth inhibition and biomass reduction as well as enhanced Mo-induced Cd stress tolerance and less oxidative damage than MXZ-2 fragrant rice cultivar.

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“…Molybdenum (Mo), an indispensable microelement, is involved in multiple metabolic and cellular processes in higher plants [ 9 , 10 ]. It plays a key role in different plant physio-biochemical processes, such as photosynthesis, chloroplast configuration and ultra-structural integrity, and chlorophyll biosynthesis and also acts as a stress-resilient element to enhance the oxidative stress tolerance under salinity [ 11 ], drought [ 12 ], low temperature [ 13 ], and ammonium toxicity [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Molybdenum-Induced Regulation of Antioxidant Defense-Mitigated Cadmium Stress in Aromatic Rice and Improved Crop Growth, Yield, and Quality Traits

Imran

Hussain

et al. 2021

Antioxidants

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Cadmium (Cd) stress causes serious disruptions in plant metabolism, physio-biochemical responses, crop yield, and grain quality characteristics. A pot experiment was conducted to investigate the role of molybdenum (Mo) in mitigating Cd-induced adversities on plant growth, yield attributes, and grain quality characteristics of a popular aromatic rice cultivar ‘Xiangyaxiangzhan’. The Mo was applied at 0.15 mg kg−1 soil in both control (no Cd) and Cd-contaminated (100 mg kg−1) soils. A treatment with Mo-free (−Mo) soil was also maintained for comparison. The results showed that Cd toxicity significantly (p < 0.05) reduced plant dry biomass, grain yield, photosynthetic efficiency, and pigment contents, and impaired chloroplast ultra-structural configuration and simultaneously destabilized the plant metabolism owing to higher accumulation of hydrogen peroxide, electrolyte leakage, and malondialdehyde contents. However, Mo supply improved grain yield and 2-acetyl-1-pyrroline content by 64.75% and 77.09%, respectively, under Cd stress, suggesting that Mo supply mitigated Cd-provoked negative effects on yield attributes and grain quality of aromatic rice. Moreover, Mo supply enhanced photosynthesis, proline, and soluble protein content, and also strengthened plant metabolism and antioxidant defense through maintaining higher activities and transcript abundance of ROS-detoxifying enzymes at the vegetative, reproductive, and maturity stages of aromatic rice plants under Cd toxicity. Collectively, our findings indicated that Mo supply strengthened plant metabolism at prominent growth stages through an improved enzymatic and non-enzymatic antioxidant defense system, thereby increasing grain yield and quality characteristics of aromatic rice under Cd toxicity.

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Molybdenum-induced effects on leaf ultra-structure and rhizosphere phosphorus transformation in Triticum aestivum L

Cited by 21 publications

References 58 publications

Molybdenum‐induced effects on nitrogen uptake efficiency and recovery in wheat (Triticum aestivum L.) using ¹⁵N‐labeled nitrogen with different N forms and rates

Molybdenum‐induced effects on nitrogen uptake efficiency and recovery in wheat (Triticum aestivum L.) using ¹⁵N‐labeled nitrogen with different N forms and rates

Molybdenum Supply Alleviates the Cadmium Toxicity in Fragrant Rice by Modulating Oxidative Stress and Antioxidant Gene Expression

Molybdenum-Induced Regulation of Antioxidant Defense-Mitigated Cadmium Stress in Aromatic Rice and Improved Crop Growth, Yield, and Quality Traits

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Molybdenum-induced effects on leaf ultra-structure and rhizosphere phosphorus transformation in Triticum aestivum L

Cited by 21 publications

References 58 publications

Molybdenum‐induced effects on nitrogen uptake efficiency and recovery in wheat (Triticum aestivum L.) using 15N‐labeled nitrogen with different N forms and rates

Molybdenum‐induced effects on nitrogen uptake efficiency and recovery in wheat (Triticum aestivum L.) using 15N‐labeled nitrogen with different N forms and rates

Molybdenum Supply Alleviates the Cadmium Toxicity in Fragrant Rice by Modulating Oxidative Stress and Antioxidant Gene Expression

Molybdenum-Induced Regulation of Antioxidant Defense-Mitigated Cadmium Stress in Aromatic Rice and Improved Crop Growth, Yield, and Quality Traits

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Molybdenum‐induced effects on nitrogen uptake efficiency and recovery in wheat (Triticum aestivum L.) using ¹⁵N‐labeled nitrogen with different N forms and rates

Molybdenum‐induced effects on nitrogen uptake efficiency and recovery in wheat (Triticum aestivum L.) using ¹⁵N‐labeled nitrogen with different N forms and rates