Effects of glyphosate on germination, photosynthesis and chloroplast morphology in tomato.

Khan, S; Zhou, JL; Ren, L; Mojiri, A

Effects of glyphosate on germination, photosynthesis and chloroplast morphology in tomato.

Khan, S Zhou, JL Ren, L Mojiri, A

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Chemosphere, 2020, 258, pp. 127350
Issue Date:: 2020-11

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Field	Value	Language
dc.contributor.author	Khan, S
dc.contributor.author	Zhou, JL
dc.contributor.author	Ren, L
dc.contributor.author	Mojiri, A
dc.date.accessioned	2021-02-26T19:26:09Z
dc.date.available	2020-06-05
dc.date.available	2021-02-26T19:26:09Z
dc.date.issued	2020-11
dc.identifier.citation	Chemosphere, 2020, 258, pp. 127350
dc.identifier.issn	0045-6535
dc.identifier.issn	1879-1298
dc.identifier.uri	http://hdl.handle.net/10453/146494
dc.description.abstract	The adverse effects of glyphosate herbicide on plants are well recognised, however, potential hormetic effects have not been well studied. This study aimed to use tomato as a model organism to explore the potential hormetic effects of glyphosate in water (0-30 mg L<sup>-1</sup>) and in compost soil (0-30 mg kg<sup>-1</sup>). The growth-promoting effects of glyphosate at concentrations of 0.03-1 mg L<sup>-1</sup> in water or 0.03-1 mg kg<sup>-1</sup> in compost were demonstrated in tomato for the first time. These hormetic effects were manifest as increased hypocotyl and radicle growth of seedlings germinated on paper towel soaked in glyphosate solution and also in crops which had been sprayed with glyphosate. Increased rates of photosynthesis (up to 2-fold) were observed in 4-week old crops when seeds were sown in compost amended with glyphosate and also when leaves were sprayed with glyphosate. The examination of chloroplast morphology using transmission electron microscopy revealed that the hormetic effects were associated with elongation of chloroplasts, possibly due to lateral expansion of thylakoid grana.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	Elsevier BV
dc.relation.ispartof	Chemosphere
dc.relation.isbasedon	10.1016/j.chemosphere.2020.127350
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Sciences
dc.subject.classification	Meteorology & Atmospheric Sciences
dc.subject.mesh	Chloroplasts
dc.subject.mesh	Lycopersicon esculentum
dc.subject.mesh	Seeds
dc.subject.mesh	Plant Leaves
dc.subject.mesh	Crops, Agricultural
dc.subject.mesh	Glycine
dc.subject.mesh	Soil
dc.subject.mesh	Herbicides
dc.subject.mesh	Germination
dc.subject.mesh	Photosynthesis
dc.subject.mesh	Hormesis
dc.subject.mesh	Seedlings
dc.subject.mesh	Chloroplasts
dc.subject.mesh	Crops, Agricultural
dc.subject.mesh	Germination
dc.subject.mesh	Glycine
dc.subject.mesh	Herbicides
dc.subject.mesh	Hormesis
dc.subject.mesh	Lycopersicon esculentum
dc.subject.mesh	Photosynthesis
dc.subject.mesh	Plant Leaves
dc.subject.mesh	Seedlings
dc.subject.mesh	Seeds
dc.subject.mesh	Soil
dc.title	Effects of glyphosate on germination, photosynthesis and chloroplast morphology in tomato.
dc.type	Journal Article
utslib.citation.volume	258
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
dc.date.updated	2021-02-26T19:26:06Z
pubs.publication-status	Published
pubs.volume	258

Abstract:

The adverse effects of glyphosate herbicide on plants are well recognised, however, potential hormetic effects have not been well studied. This study aimed to use tomato as a model organism to explore the potential hormetic effects of glyphosate in water (0-30 mg L^-1) and in compost soil (0-30 mg kg^-1). The growth-promoting effects of glyphosate at concentrations of 0.03-1 mg L^-1 in water or 0.03-1 mg kg^-1 in compost were demonstrated in tomato for the first time. These hormetic effects were manifest as increased hypocotyl and radicle growth of seedlings germinated on paper towel soaked in glyphosate solution and also in crops which had been sprayed with glyphosate. Increased rates of photosynthesis (up to 2-fold) were observed in 4-week old crops when seeds were sown in compost amended with glyphosate and also when leaves were sprayed with glyphosate. The examination of chloroplast morphology using transmission electron microscopy revealed that the hormetic effects were associated with elongation of chloroplasts, possibly due to lateral expansion of thylakoid grana.

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http://hdl.handle.net/10453/146494