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Swain BB, Mishra S, Samal S, Adak T, Mohapatra PK, Ayyamperumal R. Chlorpyrifos enrichment enhances tolerance of Anabaena sp. PCC 7119 to dimethoate. ENVIRONMENTAL RESEARCH 2024; 249:118310. [PMID: 38331154 DOI: 10.1016/j.envres.2024.118310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 01/03/2024] [Accepted: 01/23/2024] [Indexed: 02/10/2024]
Abstract
Organophosphorus (OP) insecticides are widely used for on-field pest control, constituting about 38% of global pesticide consumption. Insecticide tolerance has been recorded in microorganisms isolated from the contaminated soil. However, the cross-tolerance of laboratory-enriched cultures remains poorly understood. A chlorpyrifos tolerant (T) strain of Anabaena sp. PCC 7119 was developed through continuous enrichment of the wild strain (W). The cross-tolerance of the T strain to the OP insecticide dimethoate was assessed by measuring photosynthetic performance, key enzyme activities and degradation potential. The presence of dimethoate led to a significant reduction in the growth and pigment content of the W strain. In contrast, the T strain demonstrated improved growth and metabolic performance. Chl a and carotenoids were degraded faster than phycobiliproteins in both strains. The T strain exhibited superior photosynthetic performance, metabolic efficiency and photosystem functions, than of W strain, at both the tested dimethoate concentrations (100 and 200 μM). The treated T strain had more or less a normal OJIP fluorescence transient and bioenergetic functions, while the W strain showed a greater fluorescence rise at ≤ 300 μs indicating the inhibition of electron donation to PS II, and at 2 ms due to reduced electron release beyond QA. The T strain had significantly higher levels of esterase and phosphatases, further enhanced by insecticide treatment. Dimethoate degradation efficiency of the T strain was significantly higher than of the W strain. T strain also removed chlorpyrifos more efficiently than W strain at both the tested concentrations. The BCFs of both chlorpyrifos and dimethoate were lower in the T strain compared to the W strain. These findings suggest that the enriched strain exhibits promising results in withstanding dimethoate toxicity and could be explored for its potential as a bioremediating organism for OP degradation.
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Affiliation(s)
| | | | - Subhashree Samal
- Department of Botany, Ravenshaw University, Cuttack, 753003, India.
| | - Totan Adak
- Crop Protection Division, ICAR- National Rice Research Institute, Cuttack, 753006, India.
| | | | - Ramamoorthy Ayyamperumal
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, PR China; SIMATS Saveetha University, Chennai, Tamilnadu, 600077, India.
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Jiao Q, Deng J, Zhao X, Yao X, Li M, Pei Z, Li X, Jiang X, Zhang F. Physiological and biochemical regulation of tobacco by oxathiapiprolin under Phytophthora nicotianae infection. PHYSIOLOGIA PLANTARUM 2023; 175:e13891. [PMID: 36917080 DOI: 10.1111/ppl.13891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
As a fungicide, oxathiapiprolin has excellent effects on diseases caused by oomycetes. Fungicides generally protect crops by inhibiting pathogens, but little research has addressed the effects of fungicides on crops. This study combined transcriptomic and metabolomic analyses to systematically analyze the physiological regulatory mechanisms of oxathiapiprolin on tobacco under Phytophthora nicotianae infection. The results showed that under P. nicotianae infection, tobacco's photosynthetic rate and antioxidant enzyme activity increased after the application of oxathiapiprolin. Omics results showed that the genes related to carbon metabolism, disease-resistant proteins, and amino acid synthesis were highly expressed, and the amino acid content increased in tobacco leaves. This study is the first comprehensive investigation of the physiological regulatory effects of oxathiapiprolin on tobacco in response to P. nicotianae infection. These findings provide a basis for the balance between regulating tobacco growth and development and enhancing disease resistance under the stimulation of oxathiapiprolin and provide new research and development opportunities for identifying new disease-resistance genes and the development of high-yielding disease-resistant crop varieties.
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Affiliation(s)
- Qin Jiao
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
| | - Jiahui Deng
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
| | - Xiaoyan Zhao
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
| | - Xiangfeng Yao
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
| | - Min Li
- China Tobacco Hebei Industrial Co., Ltd, ShiJiazhuang, China
| | | | - Xiangdong Li
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
| | - Xingyin Jiang
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
| | - Fengwen Zhang
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, People's Republic of China
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Prolonged Use of Insecticide Dimethoate Inhibits Growth and Photosynthetic Activity of Wheat Seedlings: A Study by Laser-Induced Chlorophyll Fluorescence Spectroscopy. J Fluoresc 2022; 32:2159-2172. [PMID: 35970986 DOI: 10.1007/s10895-022-03010-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 07/27/2022] [Indexed: 10/15/2022]
Abstract
This paper is an extension of the work published in Journal of Fluorescence (2011) 21: 785-791. In the previous work, we studied the effect of dimethoate (50, 100 and 200 ppm) on growth and photosynthetic activity of wheat seedlings after 10 days of dimethoate treatment. In the present study, new measurement conditions (dimethoate concentration: 25 ppm, treatment period: 20 days and 30 days) were used in addition to those used in the past work. Various plant growth parameters, photosynthetic pigment content, laser-induced chlorophyll fluorescence (LICF) spectra and fluorescence induction kinetics (FIK) curves were recorded after 10, 20 and 30 days of dimethoate treatments. LICF spectra were recorded in the region of 650-780 nm using violet diode laser (405 nm). FIK curves were recorded at 685 nm using red diode laser (635 nm). Fluorescence intensity ratio (FIR) of two fluorescence peaks around 685 and 730 nm, and variable chlorophyll fluorescence decrease ratio (Rfd) were determined from LICF spectra and FIK curves respectively. Curve-fitted parameters of LICF spectra were used for determination of FIR (F685/F730). The effect of treatment of the insecticide dimethoate on growth and photosynthetic activity of wheat seedlings was examined by using these parameters as well as the past work. In 10-days treatment, 25 and 50 ppm dimethoate showed stimulatory effect with better stimulation being observed at 25 ppm. All studied concentrations higher than 50 ppm exhibited inhibitory effect on wheat seedlings. In case of dimethoate treatment studied for longer durations (more than 10 days), all concentrations showed inhibitory effect. Lower doses which showed some positive response for short time duration become toxic with the extension of treatment periods. Thus, this study clearly confirms the toxic effect of dimethoate on wheat plants.
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In vitro and in vivo evidence for the mitigation of monocrotophos toxicity using native Trichoderma harzianum isolate. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01078-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Ahmad S, Chaudhary HJ, Damalas CA. Microbial detoxification of dimethoate through mediated hydrolysis by Brucella sp. PS4: molecular profiling and plant growth-promoting traits. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:2420-2431. [PMID: 34374007 DOI: 10.1007/s11356-021-15806-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
High toxicity of dimethoate requires efficient ways for detoxification and removal of its residues in contaminated environments. Microbial remediation is a process that utilizes the degradation potential of microbes to provide a cost-effective and reliable approach for pesticide abatement. For this purpose, a dimethoate-degrading bacterium Brucella sp. was isolated from a contaminated agricultural soil sample in Multan, Pakistan. This isolate was found to tolerate up to 100 ppm of dimethoate in minimal salt medium and was further evaluated for plant growth-promoting traits. The strain gave positive results for amylase, ammonia, and catalase production, while other traits such as indole acetic acid production and potassium solubilization were also confirmed. Thus, the strain could play an important role for plant nutrient transmission in the plant rhizosphere. Optimization of growth parameters (i.e., pH and temperature) depicted the potential of PS4 to be best tolerating dimethoate, with maximum cell density at λ 600 nm. Optimum pH and temperature for growth were found to be 6 and 35 °C, respectively. Based on optimization results as well as different attributes, the rhizospheric bacterial isolate PS4 was further subjected to a batch degradation experiment under different concentrations of dimethoate (25, 50, 75, and 100 ppm). This promising dimethoate-degrading isolate was found to degrade 83% of dimethoate (at 100 ppm) within a period of 7 days. In addition, it degraded 88% of dimethoate at 50 ppm, indicating that the bacterial isolate utilized dimethoate solely as a source of energy. The strain followed the first order reaction kinetics, depicting its dependence on dimethoate as energy and carbon source. Molecular profiling further supported its role in plant growth promotion and multi-stress tolerance. This research showed that Brucella sp. is capable of degrading dimethoate, and therefore, it would be useful in the investigation of novel bioremediation techniques at pesticide-polluted sites.
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Affiliation(s)
- Saliha Ahmad
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Hassan Javed Chaudhary
- Department of Plant Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320, Pakistan.
| | - Christos A Damalas
- Department of Agricultural Development, Democritus University of Thrace, Orestiada, Greece
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Sharma S, Uttam R, Singh P, Uttam KN. Detection of Vibrational Spectroscopic Biomarkers of the Effect of Gold Nanoparticles on Wheat Seedlings Using Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy. ANAL LETT 2018. [DOI: 10.1080/00032719.2017.1423077] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Sweta Sharma
- Department of Botany, University of Allahabad, Allahabad, India
| | - Rahul Uttam
- Centre of Material sciences, IIDS, University of Allahabad, Allahabad, India
| | - Praveen Singh
- Biophysics Section, Biotechnology Division, Indian Vetenary Research Institute, Bareilly, India
| | - K. N. Uttam
- Saha’s Spectroscopy Laboratory, Department of Physics, University of Allahabad, Allahabad, India
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Abbas M, Arshad M, Nisar N, Nisar J, Ghaffar A, Nazir A, Asif Tahir M, Iqbal M. Muscilage characterization, biochemical and enzymatic activities of laser irradiated Lagenaria siceraria seedlings. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017. [DOI: 10.1016/j.jphotobiol.2017.06.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Urva, Shafique H, Jamil Y, Haq ZU, Mujahid T, Khan AU, Iqbal M, Abbas M. Low power continuous wave-laser seed irradiation effect on Moringa oleifera germination, seedling growth and biochemical attributes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 170:314-323. [DOI: 10.1016/j.jphotobiol.2017.04.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 04/02/2017] [Accepted: 04/03/2017] [Indexed: 01/09/2023]
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