Journal ArticleDOI
Carbon Nanotubes Induce Growth Enhancement of Tobacco Cells
Mariya V. Khodakovskaya,Kanishka de Silva,Alexandru S. Biris,Enkeleda Dervishi,Hector Villagarcia +4 more
TLDR
It is demonstrated that multiwalled carbon nanotubes (MWCNTs) have the ability to enhance the growth of tobacco cell culture in a wide range of concentrations.Abstract:
Carbon nanotubes have shown promise as regulators of seed germination and plant growth. Here, we demonstrate that multiwalled carbon nanotubes (MWCNTs) have the ability to enhance the growth of tobacco cell culture (55-64% increase over control) in a wide range of concentrations (5-500 μg/mL). Activated carbon (AC) stimulated cell growth (16% increase) only at low concentrations (5 μg/mL) while dramatically inhibited the cellular growth at higher concentrations (100-500 μg/mL). We found a correlation between the activation of cells growth exposed to MWCNTs and the upregulation of genes involved in cell division/cell wall formation and water transport. The expression of the tobacco aquaporin (NtPIP1) gene, as well as production of the NtPIP1 protein, significantly increased in cells exposed to MWCNTs compared to control cells or those exposed to AC. The expression of marker genes for cell division (CycB) and cell wall extension (NtLRX1) was also up-regulated in cells exposed to MWCNTs compared to control cells or those exposed to activated carbon only.read more
Citations
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Journal ArticleDOI
Nanotechnology in agri-food production: an overview.
TL;DR: Experts feel that the potential benefits of nanotechnology for agriculture, food, fisheries, and aquaculture need to be balanced against concerns for the soil, water, and environment and the occupational health of workers.
Journal ArticleDOI
An overview on manufactured nanoparticles in plants: Uptake, translocation, accumulation and phytotoxicity
Durgesh Kumar Tripathi,Shweta,Shweta Singh,Swati Singh,Rishikesh Pandey,Vijay Pratap Singh,Nilesh C. Sharma,Sheo Mohan Prasad,Nawal Kishore Dubey,Devendra Kumar Chauhan +9 more
TL;DR: The present review summarizes uptake, translocation and accumulation of nanomaterials and their recognized ways of phytotoxicity on morpho-anatomical, physiological, biochemical and molecular traits of plants and examines the intrinsic detoxification mechanisms in plants in light ofnanomaterial accumulation within plant cells or parts.
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A review of the use of engineered nanomaterials to suppress plant disease and enhance crop yield
Alia D. Servin,Wade H. Elmer,Arnab Mukherjee,Roberto De La Torre-Roche,Helmi Hamdi,Jason C. White,Prem S. Bindraban,Christian O. Dimkpa +7 more
TL;DR: In this article, the authors evaluate the current literature on the use of nanoscale nutrients (metals, metal oxides, carbon) to suppress crop disease and subsequently enhance growth and yield.
Journal ArticleDOI
Barriers, pathways and processes for uptake, translocation and accumulation of nanomaterials in plants – Critical review
TL;DR: The next steps towards a realistic risk assessment of nanoparticles in plants are to measure ENM uptake rates, the size exclusion limit of the apoplast and to unravel plant physiological features favoring uptake.
Journal ArticleDOI
Toxicity, Uptake, and Translocation of Engineered Nanomaterials in Vascular plants.
TL;DR: The mechanisms by which engineered nanomaterials penetrate plants are not well understood, and further research on their interactions with vascular plants is required to enable the field of phytotoxicology to keep pace with that of nanotechnology.
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Journal ArticleDOI
Carbon nanotubes are able to penetrate plant seed coat and dramatically affect seed germination and plant growth.
Mariya V. Khodakovskaya,Enkeleda Dervishi,Meena Mahmood,Yang Xu,Zhongrui Li,Fumiya Watanabe,Alexandru S. Biris +6 more
TL;DR: Analytical methods indicated that the CNTs are able to penetrate the thick seed coat and support water uptake inside seeds, a process which can affect seed germination and growth of tomato seedlings.
Journal ArticleDOI
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TL;DR: It is shown that the physiological effects are related to the nanometer-size particles, but the mechanism by which nano-TiO2 improves the growth of spinach seeds still needs further study.
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