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Foliar Application of CeO(2) Nanoparticles Alters Generative Components Fitness and Seed Productivity in Bean Crop (Phaseolus vulgaris L.)

In the era of technology, nanotechnology has been introduced as a new window for agriculture. However, no attention has been paid to the effect of cerium dioxide nanoparticles (nCeO(2)) on the reproductive stage of plant development to evaluate their toxicity and safety. To address this important to...

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Autores principales: Salehi, Hajar, Chehregani Rad, Abdolkarim, Raza, Ali, Chen, Jen-Tsung
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8065513/
https://www.ncbi.nlm.nih.gov/pubmed/33800551
http://dx.doi.org/10.3390/nano11040862
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author Salehi, Hajar
Chehregani Rad, Abdolkarim
Raza, Ali
Chen, Jen-Tsung
author_facet Salehi, Hajar
Chehregani Rad, Abdolkarim
Raza, Ali
Chen, Jen-Tsung
author_sort Salehi, Hajar
collection PubMed
description In the era of technology, nanotechnology has been introduced as a new window for agriculture. However, no attention has been paid to the effect of cerium dioxide nanoparticles (nCeO(2)) on the reproductive stage of plant development to evaluate their toxicity and safety. To address this important topic, bean plants (Phaseolus vulgaris L.) treated aerially with nCeO(2) suspension at 250–2000 mg L(−1) were cultivated until flowering and seed production in the greenhouse condition. Microscopy analysis was carried out on sectioned anthers and ovules at different developmental stages. The pollen’s mother cell development in nCeO(2) treatments was normal at early stages, the same as control plants. However, the results indicated that pollen grains underwent serious structural damages, including chromosome separation abnormality at anaphase I, pollen wall defect, and pollen grain malformations in nCeO(2)-treated plants at the highest concentration, which resulted in pollen abortion and yield losses. On the ovule side, the progression of development only at the highest concentration was modified in the two-nucleated embryo sac stage, probably due to apoptosis in nuclei. Nevertheless, the findings confirmed the more pronounced vulnerability of male reproductive development under nCeO(2) exposure than female development. The higher concentration decreased seed productivity, including seed set in either pods or whole plant (13% and 18% compared to control, respectively). The data suggested the potential application of nCeO(2) at optimal dosages as a plant productivity ameliorative. However, a higher dosage is considered as an eco-environmental hazard. To our best knowledge, this is the first study analyzing reproductive plant response upon exposure to nCeO(2).
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spelling pubmed-80655132021-04-25 Foliar Application of CeO(2) Nanoparticles Alters Generative Components Fitness and Seed Productivity in Bean Crop (Phaseolus vulgaris L.) Salehi, Hajar Chehregani Rad, Abdolkarim Raza, Ali Chen, Jen-Tsung Nanomaterials (Basel) Article In the era of technology, nanotechnology has been introduced as a new window for agriculture. However, no attention has been paid to the effect of cerium dioxide nanoparticles (nCeO(2)) on the reproductive stage of plant development to evaluate their toxicity and safety. To address this important topic, bean plants (Phaseolus vulgaris L.) treated aerially with nCeO(2) suspension at 250–2000 mg L(−1) were cultivated until flowering and seed production in the greenhouse condition. Microscopy analysis was carried out on sectioned anthers and ovules at different developmental stages. The pollen’s mother cell development in nCeO(2) treatments was normal at early stages, the same as control plants. However, the results indicated that pollen grains underwent serious structural damages, including chromosome separation abnormality at anaphase I, pollen wall defect, and pollen grain malformations in nCeO(2)-treated plants at the highest concentration, which resulted in pollen abortion and yield losses. On the ovule side, the progression of development only at the highest concentration was modified in the two-nucleated embryo sac stage, probably due to apoptosis in nuclei. Nevertheless, the findings confirmed the more pronounced vulnerability of male reproductive development under nCeO(2) exposure than female development. The higher concentration decreased seed productivity, including seed set in either pods or whole plant (13% and 18% compared to control, respectively). The data suggested the potential application of nCeO(2) at optimal dosages as a plant productivity ameliorative. However, a higher dosage is considered as an eco-environmental hazard. To our best knowledge, this is the first study analyzing reproductive plant response upon exposure to nCeO(2). MDPI 2021-03-28 /pmc/articles/PMC8065513/ /pubmed/33800551 http://dx.doi.org/10.3390/nano11040862 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ).
spellingShingle Article
Salehi, Hajar
Chehregani Rad, Abdolkarim
Raza, Ali
Chen, Jen-Tsung
Foliar Application of CeO(2) Nanoparticles Alters Generative Components Fitness and Seed Productivity in Bean Crop (Phaseolus vulgaris L.)
title Foliar Application of CeO(2) Nanoparticles Alters Generative Components Fitness and Seed Productivity in Bean Crop (Phaseolus vulgaris L.)
title_full Foliar Application of CeO(2) Nanoparticles Alters Generative Components Fitness and Seed Productivity in Bean Crop (Phaseolus vulgaris L.)
title_fullStr Foliar Application of CeO(2) Nanoparticles Alters Generative Components Fitness and Seed Productivity in Bean Crop (Phaseolus vulgaris L.)
title_full_unstemmed Foliar Application of CeO(2) Nanoparticles Alters Generative Components Fitness and Seed Productivity in Bean Crop (Phaseolus vulgaris L.)
title_short Foliar Application of CeO(2) Nanoparticles Alters Generative Components Fitness and Seed Productivity in Bean Crop (Phaseolus vulgaris L.)
title_sort foliar application of ceo(2) nanoparticles alters generative components fitness and seed productivity in bean crop (phaseolus vulgaris l.)
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8065513/
https://www.ncbi.nlm.nih.gov/pubmed/33800551
http://dx.doi.org/10.3390/nano11040862
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