H2O2 signaling regulates seed germination in ZnO nanoprimed wheat (Triticum aestivum L.) seeds for improving plant performance under drought stress

Rai-Kalal, Prabha; Tomar, Rupal Singh; Jajoo, Anjana

doi:10.1016/j.envexpbot.2021.104561

Cited by 54 publications

(20 citation statements)

References 48 publications

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“…The enzymatic reaction results also showed that the antioxidant enzyme defense system was activated by nZVI and drought stress to neutralize the oxidative damage of ROS, and upregulate the activities of SOD and POD. Consistent with previous study, we also found that there was a certain threshold for the responses of antioxidant enzymes to environmental stress, and excessive stress might destroy the defense system and lead to the reduction of related enzyme activities (Rai‐Kalal et al, 2021).…”

Section: Discussionsupporting

confidence: 92%

Rhizosphere effect of nanoscale zero‐valent iron on mycorrhiza‐dependent maize assimilation

Yang

Ying

Naseer

et al. 2022

Plant Cell & Environment

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Rhizosphere effect of nanoscale zero‐valent iron (nZVI) is crucial but little reported. Maize seeds were dressed with four nZVI concentrations (0, 1.0, 1.5, 2 g kg−1) and inoculated with arbuscular mycorrhizal fungus (AMF) (Funneliformis mosseae). The SEM images illuminated that excessive nZVI particles (2 g kg−1) were agglomerated on the surface of hyphae and spore, causing severe deformation and inactivation of AMF symbionts and thereafter inhibiting water uptake in maize seedlings. This restrained the scavenging effects of enzymatic (superoxide dismutase, peroxidase) and non‐enzymatic compounds (proline & malondialdehyde) on ROS, and leaf photoreduction activity and gas exchange ability (p < 0.05). Interestingly, the inoculation with AMF effectively alleviated above negative effects. In contrast, appropriate dose of nZVI, that is, ≤1.5 g kg−1, can be evenly distributed on the hyphae surface and form the ordered symbionts with AMF. This help massively to enhance hyphae growth and water and nutrient uptake. The enhanced mycorrhizal infection turned to promote rhizosphere symbiont activity and leaf Rubisco and Rubisco activase activity. Light compensation point was massively lowered, which increased photosynthetic carbon supply for AMF symbionts. Particularly, such priming effects were evidently enhanced by drought stress. Our findings provided a novel insight into functional role of nZVI in agriculture and AMF‐led green production.

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Section: Discussionsupporting

confidence: 92%

Rhizosphere effect of nanoscale zero‐valent iron on mycorrhiza‐dependent maize assimilation

Yang

Ying

Naseer

et al. 2022

Plant Cell & Environment

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“…It reduces seed germination, vigor potential, and yield losses under severe stress conditions. On the contrary, applying the nanopriming agent to crops greatly enhances seed germination and plant growth parameters under adverse climatic conditions [36,37].…”

Section: Discussionmentioning

confidence: 99%

Biosynthesis of Zinc Oxide Nanoparticles via Leaf Extracts of Catharanthus roseus (L.) G. Don and Their Application in Improving Seed Germination Potential and Seedling Vigor of Eleusine coracana (L.) Gaertn

Mishra

Chitara

Negi

et al. 2023

Advances in Agriculture

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The ecofriendly nature of materials used in synthesis and their low cost make biosynthesized nanoparticles excellent stuff for a broad range of applications in bioscience. Green nanomaterials are progressively used in agriculture to deliver plant nutrients efficiently and effectively. The present work aimed to biosynthesize zinc oxide nanoparticles (ZnO NPs) utilizing Catharanthus roseus (L.) G. Don leaf extracts to use them as a nanopriming agent for improving seed germination and seedling growth in Eleusine coracana (L.) Gaertn (finger millet). UV-Vis spectroscopy, FTIR, FE-SEM, EDX, and TEM were used to characterize biosynthesized nanoparticles (NPs). The peaks at 362 nm characterized UV-Vis spectra of ZnO NPs. The FTIR absorption spectrum of ZnO NPs showed Zn-O bending at 547 cm−1. The size (44.5 nm) and shape (nonspherical) of ZnO NPs were revealed by TEM image analysis. XRD confirmed the hexagonal wurtzite phase of ZnO with an average particle size of 35.19. The seed germination results revealed that ZnO-nanoprimed seeds at 500 mg/L substantially improved all the seed germination parameters, viz., plumule length (23.4%), radicle length (55%), vigor index (41.94%), and dry matter production (54.6%) compared to hydropriming (control).

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“…47 The peroxidase (POD) activity was spectrophotometrically assessed by monitoring the formation of guaiacol at 470 nm. 48 The activity of catalase (CAT) was determined according to standard protocols as described by Rezazad Bari et al 49 Confocal imaging of PNC ROS scavenging in the leaf was performed as described in Wu et al (2018). 22…”

Section: Ros Determination and Enzyme Activity Assaymentioning

confidence: 99%

CeO₂ nanoparticles modulate Cu–Zn superoxide dismutase and lipoxygenase-IV isozyme activities to alleviate membrane oxidative damage to improve rapeseed salt tolerance

Khan

et al. 2022

Environ. Sci.: Nano

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H2O2 signaling regulates seed germination in ZnO nanoprimed wheat (Triticum aestivum L.) seeds for improving plant performance under drought stress

Cited by 54 publications

References 48 publications

Rhizosphere effect of nanoscale zero‐valent iron on mycorrhiza‐dependent maize assimilation

Rhizosphere effect of nanoscale zero‐valent iron on mycorrhiza‐dependent maize assimilation

Biosynthesis of Zinc Oxide Nanoparticles via Leaf Extracts of Catharanthus roseus (L.) G. Don and Their Application in Improving Seed Germination Potential and Seedling Vigor of Eleusine coracana (L.) Gaertn

CeO₂ nanoparticles modulate Cu–Zn superoxide dismutase and lipoxygenase-IV isozyme activities to alleviate membrane oxidative damage to improve rapeseed salt tolerance

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H2O2 signaling regulates seed germination in ZnO nanoprimed wheat (Triticum aestivum L.) seeds for improving plant performance under drought stress

Cited by 54 publications

References 48 publications

Rhizosphere effect of nanoscale zero‐valent iron on mycorrhiza‐dependent maize assimilation

Rhizosphere effect of nanoscale zero‐valent iron on mycorrhiza‐dependent maize assimilation

Biosynthesis of Zinc Oxide Nanoparticles via Leaf Extracts of Catharanthus roseus (L.) G. Don and Their Application in Improving Seed Germination Potential and Seedling Vigor of Eleusine coracana (L.) Gaertn

CeO2 nanoparticles modulate Cu–Zn superoxide dismutase and lipoxygenase-IV isozyme activities to alleviate membrane oxidative damage to improve rapeseed salt tolerance

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CeO₂ nanoparticles modulate Cu–Zn superoxide dismutase and lipoxygenase-IV isozyme activities to alleviate membrane oxidative damage to improve rapeseed salt tolerance