Effects of Nano-Anatase on Ribulose-1, 5-Bisphosphate Carboxylase/Oxygenase mRNA Expression in Spinach

Wang, Xüming; Gao, Fengqing; Linglan, Ma; Liu, Jie; Yin, Shutao; Yang, Ping; Hong, Fashui

doi:10.1007/s12011-008-8203-y

Cited by 44 publications

(9 citation statements)

References 24 publications

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“…The anatase crystalline form of TiO 2 NPs exhibits the highest catalytic activity, facilitating chlorophyll and carotene synthesis in Cucumis sativus (C. sativus) [99]. Titanium dioxide enhanced the light absorption in chlorophyll-a molecules, oxygen evolution, and electron transfer rate in spinach leaves; TiO 2 NPs encourage chloroplast activity and Hill reaction [100].…”

Section: Positive Impact Of Nanoparticles On Plant Growth Andmentioning

confidence: 99%

Uptake, Translocation, and Consequences of Nanomaterials on Plant Growth and Stress Adaptation

Ali

Mehmood

Khan

2021

Journal of Nanomaterials

193

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Nanotechnology has shown promising potential tools and strategies at the nanometer scale to improve food production and meet the future demands of agricultural and food security. However, considering nanotechnology’s potential benefits to date, their applicability has not yet reached up to field conditions. Increasing concerns regarding absorption, translocation, bioavailability, toxicity of nanoparticles, and impropriety of the regulatory framework restrict the complete acceptance and inclination of the agricultural sector to implement nanotechnologies. The biological function of nanoparticles depends on their physicochemical properties, the method of application, and concentration. The effects of the various types of nanoparticles (NPs) on plants were determined to increase seed germination and biomass or grain yield. The NPs also increased the plant’s resistance to various biotic and abiotic stresses. The plant’s biological functions depend on the events that occur at the molecular level. However, little progress has been made at the molecular level influenced by nanoparticles, which is an important step in evaluating potential mechanisms and plants’ effects. Therefore, it is important to understand plants’ underlying mechanism and response towards nanoparticles, and the gene expression changes through molecular approaches. The associations of nanomaterials with plant cells, the process of internalization, and the distribution of biomolecules using nanoparticles as a carrier are studied but not well understood. The transmission of biomolecules, such as nucleic acids, is a major obstacle due to cell walls, limiting the application of nanomaterials in crop enhancement mediated by genetic engineering. Recently, the use of different nanomaterials for nucleic acid delivery in plant cells has been published. Here, we aim to update researchers on the absorption and translocation of nanoparticles and elaborate on the importance of nanoparticles in agriculture and crop stress tolerance.

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Section: Positive Impact Of Nanoparticles On Plant Growth Andmentioning

confidence: 99%

Uptake, Translocation, and Consequences of Nanomaterials on Plant Growth and Stress Adaptation

Ali

Mehmood

Khan

2021

Journal of Nanomaterials

193

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“…It promotes carotene and chlorophyll synthesis in cucumber. TiO 2 nanoparticles increase the Hill reaction and chloroplast activity by enhancing light absorption in chlorophyll a, electron transfer and oxygen evolution rate in spinach leaves [ 138 – 142 ]. Ba [ 143 ] showed that nano-TiO 2 solution can inhibit the germination and growth of cucumber seedlings due to accumulation of nanoparticles.…”

Section: Reviewmentioning

confidence: 99%

Plant Response to Engineered Metal Oxide Nanoparticles

2017

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All metal oxide nanoparticles influence the growth and development of plants. They generally enhance or reduce seed germination, shoot/root growth, biomass production and physiological and biochemical activities. Some plant species have not shown any physiological change, although significant variations in antioxidant enzyme activity and upregulation of heat shock protein have been observed. Plants have evolved antioxidant defence mechanism which involves enzymatic as well as non-enzymatic components to prevent oxidative damage and enhance plant resistance to metal oxide toxicity. The exact mechanism of plant defence against the toxicity of nanomaterials has not been fully explored. The absorption and translocation of metal oxide nanoparticles in different parts of the plant depend on their bioavailability, concentration, solubility and exposure time. Further, these nanoparticles may reach other organisms, animals and humans through food chain which may alter the entire biodiversity. This review attempts to summarize the plant response to a number of metal oxide nanoparticles and their translocation/distribution in root/shoot. The toxicity of metal oxide nanoparticles has also been considered to see if they affect the production of seeds, fruits and the plant biomass as a whole.

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“…The activity of Rubisco in the nano-anatase-treated spinach was significantly higher than the control, by up to 2.33 times, and bulk TiO 2 treatment had no such significant effects. Together, one of the molecular mechanisms of carbon reaction promoted by nano-anatase is that the nano-anatase treatment results in the enhancement of Rubisco mRNA amounts, the protein levels, and activity of Rubisco, thereby leading to the improvement of Rubisco carboxylation and the high rate of photosynthetic carbon reaction [74].…”

Section: Positive Effects Of Mnps On Plantsmentioning

confidence: 99%

Metal Nanoparticles and Plants / Nanocząstki Metaliczne I Rośliny

Masarovičová¹,

Kráľová²

2013

Ecological Chemistry and Engineering S

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Metal nanoparticles (MNPs) belong mostly to the engineered type of nanoparticles and have not only unique physical and chemical properties but also different biological actions. In recent years, noble MNPs and their nano-sized agglomerates (collectively referred to as nanoparticles or particles in the subsequent sections) have been the subjects of much focused research due to their unique electronic, optical, mechanical, magnetic and chemical properties that can be significantly different from those of bulk materials. To enhance their use, it is important to understand the generation, transport, deposition, and interaction of such particles. Synthesis of MNPs is based on chemical or physical synthetic procedures and by use of biological material ("green synthesis" as an environmentally benign process) including bacteria, algae and vascular plants (mainly metallophytes). In biological methods for preparation of metal nanoparticles mainly leaf reductants occurring in leaf extracts are used. MNPs can be formed also directly in living plants by reduction of the metal ions absorbed as a soluble salt, indicating that plants are a suitable vehicle for production of MNPs. These methods used for preparation of MNPs are aimed to control their size and shape. Moreover, physicochemical properties of MNPs determine their interaction with living organisms. In general, inside the cells nanoparticles might directly provoke either alterations of membranes and other cell structures or activity of protective mechanisms. Indirect effects of MNPs depend on their physical and chemical properties and may include physical restraints, solubilization of toxic nanoparticle compounds or production of reactive oxygen species. Toxic impacts of MNPs on plants is connected with chemical toxicity based on their chemical composition (eg release of toxic metal ions) and with stress or stimuli caused by the surface, size and shape of these nanoparticles. Positive effects of MNPs were observed on the following plant features: seed germination, growth of plant seedlings, stimulation of oxygen evolution rate in chloroplasts, protection of chloroplasts from aging for long-time illumination, increase of the electron transfer and photophosphorylation, biomass accumulation, activity of Rubisco, increase of quantum yield of photosystem II, root elongation, increase of chlorophyll as well as nucleic acid level and increase in the shoot/root ratio. However, it should be stressed that MNPs impact on human and environmental health remains still unclear.

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Effects of Nano-Anatase on Ribulose-1, 5-Bisphosphate Carboxylase/Oxygenase mRNA Expression in Spinach

Cited by 44 publications

References 24 publications

Uptake, Translocation, and Consequences of Nanomaterials on Plant Growth and Stress Adaptation

Uptake, Translocation, and Consequences of Nanomaterials on Plant Growth and Stress Adaptation

Plant Response to Engineered Metal Oxide Nanoparticles

Metal Nanoparticles and Plants / Nanocząstki Metaliczne I Rośliny

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