Tags

Type your tag names separated by a space and hit enter

Cu from dissolution of CuO nanoparticles signals changes in root morphology.
. 2017 Jan; 110:108-117.

Abstract

Utilization of CuO nanoparticles (NPs) in agriculture, as fertilizers or pesticides, requires understanding of their impact on plant metabolism. Inhibition of root elongation by CuO NPs (>10 mg Cu/kg) occurred in wheat grown in sand. Morphological changes included root hair proliferation and shortening of the zones of division and elongation. The epidermal cells in the compressed root tip were abnormal in shape and file patterning but staining with SYTOX Blue did not reveal a general increase in epidermal cell death. Inhibition of root elongation and proliferation of root hair formation occurred also in response to exogenous indole acetic acid (IAA) supplied through tryptophan metabolism by the root-colonizing bacterium, Pseudomonas chlororaphis O6. Altered root morphology caused by the CuO NPs was likely due to release of Cu from dissolution at the root surface because similar changes occurred with Cu ions (≥6 mg/kg). Use of a fluorescent probe showed the accumulation of nitric oxide (NO), required for root hair formation, was not changed by the NPs. These findings suggested that dissolution of the NPs in the rhizosphere resulted levels of Cu that modified IAA distribution to causing root shortening but permitted NO cell signaling to promote root hair proliferation.

Authors+Show Affiliations

Department of Biological Engineering, Utah State University, Logan, UT 84322 4105, USA.Department of Biology, Utah State University, Logan, UT 84322 5305, USA.Department of Biology, Utah State University, Logan, UT 84322 5305, USA.Department of Biological Engineering, Utah State University, Logan, UT 84322 4105, USA.Department of Biological Engineering, Utah State University, Logan, UT 84322 4105, USA.Department of Biological Engineering, Utah State University, Logan, UT 84322 4105, USA; Department of Biology, Utah State University, Logan, UT 84322 5305, USA. Electronic address: anne.anderson@usu.edu.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27544889

Citation

Adams, Josh, et al. "Cu From Dissolution of CuO Nanoparticles Signals Changes in Root Morphology." Plant Physiology and Biochemistry : PPB, vol. 110, 2017, pp. 108-117.
Adams J, Wright M, Wagner H, et al. Cu from dissolution of CuO nanoparticles signals changes in root morphology. Plant Physiol Biochem. 2017;110:108-117.
Adams, J., Wright, M., Wagner, H., Valiente, J., Britt, D., & Anderson, A. (2017). Cu from dissolution of CuO nanoparticles signals changes in root morphology. Plant Physiology and Biochemistry : PPB, 110, 108-117. https://doi.org/10.1016/j.plaphy.2016.08.005
Adams J, et al. Cu From Dissolution of CuO Nanoparticles Signals Changes in Root Morphology. Plant Physiol Biochem. 2017;110:108-117. PubMed PMID: 27544889.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cu from dissolution of CuO nanoparticles signals changes in root morphology. AU - Adams,Josh, AU - Wright,Melanie, AU - Wagner,Hannah, AU - Valiente,Jonathan, AU - Britt,David, AU - Anderson,Anne, Y1 - 2016/08/08/ PY - 2016/06/12/received PY - 2016/08/03/revised PY - 2016/08/03/accepted PY - 2016/8/22/pubmed PY - 2017/4/19/medline PY - 2016/8/22/entrez KW - CuO nanoparticles KW - Indole acetic acid KW - Root hairs KW - Root morphology KW - Wheat SP - 108 EP - 117 JF - Plant physiology and biochemistry : PPB JO - Plant Physiol. Biochem. VL - 110 N2 - Utilization of CuO nanoparticles (NPs) in agriculture, as fertilizers or pesticides, requires understanding of their impact on plant metabolism. Inhibition of root elongation by CuO NPs (>10 mg Cu/kg) occurred in wheat grown in sand. Morphological changes included root hair proliferation and shortening of the zones of division and elongation. The epidermal cells in the compressed root tip were abnormal in shape and file patterning but staining with SYTOX Blue did not reveal a general increase in epidermal cell death. Inhibition of root elongation and proliferation of root hair formation occurred also in response to exogenous indole acetic acid (IAA) supplied through tryptophan metabolism by the root-colonizing bacterium, Pseudomonas chlororaphis O6. Altered root morphology caused by the CuO NPs was likely due to release of Cu from dissolution at the root surface because similar changes occurred with Cu ions (≥6 mg/kg). Use of a fluorescent probe showed the accumulation of nitric oxide (NO), required for root hair formation, was not changed by the NPs. These findings suggested that dissolution of the NPs in the rhizosphere resulted levels of Cu that modified IAA distribution to causing root shortening but permitted NO cell signaling to promote root hair proliferation. SN - 1873-2690 UR - https://www.unboundmedicine.com/medline/citation/27544889/Cu_from_dissolution_of_CuO_nanoparticles_signals_changes_in_root_morphology_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0981-9428(16)30321-7 DB - PRIME DP - Unbound Medicine ER -