Growth, physiological function, and antioxidant defense system responses of Lemna minor L. to decabromodiphenyl ether (BDE-209) induced phytotoxicity

Sun, Yuan; Sun, Peng; Wang, Cuiting; Liao, Jiahui; Ni, Juanping; Zhang, Tian’an; Wang, Runsong; Ruan, Honghua

doi:10.1016/j.plaphy.2019.03.018

Cited by 30 publications

(26 citation statements)

References 62 publications

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“…However, an excessive amount of ROS displays deleterious effects on plant growth and productivity by causing the photoinhibition of PSII (photosystem II), degrading the photosynthetic pigments, oxidizing lipid molecules, and inhibiting gene expression, etc. [19,24,[26][27][28][29]. To scavenge the deleterious ROS, plants evolved with efficient detoxification mechanisms, such as non-enzymatic and enzymatic antioxidants, throughout evolution.…”

Section: Introductionmentioning

confidence: 99%

Differential Response of Sugar Beet to Long-Term Mild to Severe Salinity in a Soil–Pot Culture

et al. 2019

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Attempts to cultivate sugar beet (Beta vulgaris spp. vulgaris) in the sub-tropical saline soils are ongoing because of its excellent tolerance to salinity. However, the intrinsic adaptive physiology has not been discovered yet in the sub-tropical climatic conditions. In this study, we investigated morpho-physiological attributes, biochemical responses, and yield of sugar beet under a gradient of salinity in the soil-pot culture system to evaluate its adaptive mechanisms. Results exhibited that low and high salinity displayed a differential impact on growth, photosynthesis, and yield. Low to moderate salt stress (75 and 100 mM NaCl) showed no inhibition on growth and photosynthetic attributes. Accordingly, low salinity displayed simulative effect on chlorophyll and antioxidant enzymes activity which contributed to maintaining a balanced H 2 O 2 accumulation and lipid peroxidation. Furthermore, relative water and proline content showed no alteration in low salinity. These factors contributed to improving the yield (tuber weight). On the contrary, 250 mM salinity showed a mostly inhibitory role on growth, photosynthesis, and yield. Collectively, our findings provide insights into the mild-moderate salt adaptation strategy in the soil culture test attributed to increased water content, elevation of photosynthetic pigment, better photosynthesis, and better management of oxidative stress. Therefore, cultivation of sugar beet in moderately saline-affected soils will ensure efficient utilization of lands.

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Section: Introductionmentioning

confidence: 99%

Differential Response of Sugar Beet to Long-Term Mild to Severe Salinity in a Soil–Pot Culture

et al. 2019

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“…The overproduction of ROS accompanied by increasing EL and MDA indicated a malfunction of the plasma membrane (Murray et al, 1989; Bouchemal et al, 2016) and lipid peroxidation (Sun et al, 2019), respectively. Our meta-analysis demonstrated that water stress significantly increased EL, MDA, ROS (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…Although CAT, POD, and SOD activities were higher under water stress than the control, both APX and GR did not show significant responses to water stress. This suggested that the EA associated with the Halliwell-Asada pathway may work less efficiently than CAT, POD, and SOD, likely because various enzymes located within different cellular compartments have disparate functions (Mittler, 2002; Gill and Tuteja, 2010; Sun et al, 2019). Further, the CAT and SOD increased with intensity (Figs, 4e, q), being attributed to the enhanced tolerance to stress (Caverzan et al, 2016), which maintained normal metabolic processes (Schneider et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

“…The lnRR was weighted by the reciprocal of sampling variance, which was calculated as ln [(1/n i ) × (S i /X i ) 2 + (1/n c ) × (S c /X c ) 2 ] using the R package metafor 2.1.0 (Viechtbauer, 2010), where S i and S c represent the standard deviations of the water stress and control groups, respectively, with n i and n c as sample sizes. In instances where the standard deviations (SD) were not reported (a total of 86 observations) we imputed them using the “Bracken 1992” method (Benitez-Lopez et al, 2017; Sun et al, 2019) with metagear (Lajeunesse, 2016).…”

Section: Methodsmentioning

confidence: 99%

“…A recent meta-analysis has specifically addressed the responses of plants to drought stress (Dong et al, 2017), but they focused on the physiological indexes (i.e., plant height, proline, electrolyte leakage, and root length) associated with transcription factors C-repeat/dehydration-responsive element-binding proteins which play important roles in plant response to environmental perturbations. Here we focus on the responses of ROS and enzymatic antioxidants (SOD, POD, CAT, GR, and APX), which represent defense mechanisms for plants under abiotic stresses (Gill and Tuteja, 2010; Sun et al, 2019). For this study, we established a global dataset by retrieving published papers to January 2020, including 1301 water-stress experiments from 84 papers (Table S1).…”

Section: Introductionmentioning

confidence: 99%

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Response patterns and mechanisms of plants to water stress

Ruan

Sun

Wang

et al. 2020

Preprint

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8Abbreviations: ABA, abscisic acid; APX, ascorbate peroxidase; AsA, ascorbate; Car, 9 carotenoid; CAT, catalase; Chl, chlorophyll; EA, enzymatic antioxidants; EL, 10 electrolyte leakage; Fv/Fm, maximal efficiency of PSII photochemistry; GR, 11 glutathione reductase; MDA, malondialdehyde; NEA, non-enzymatic antioxidants; 12 PMP, plasma membrane permeability; POD, peroxidase; PS, photosynthesis; qP, 13 photochemical quenching coefficient; ROS, reactive oxygen species; SD, standard 14 deviation; SOD, superoxide dismutase. 15One senence summary: The overproduction of ROS was the primary mechanism of 16 plants in response to water stress and that plants tend to acclimate to water stress over Abstract 29 Plants are key to the functionality of many ecosystem processes. The duration and 30 intensity of water stress are anticipated to increase in the future; however, an 31 elucidation of the responses of plants to water stress remains incomplete. For this 32 study, we present a global meta-analysis derived from 1301 paired observations from 33 84 studies to evaluate the response patterns and mechanisms of plants to water stress. 34 The results revealed that while water stress inhibited plant growth and photosynthesis, 35 reactive oxygen species (ROS), plasma membrane permeability, enzymatic 36 antioxidants, and non-enzymatic antioxidants increased. These responses generally 37 increased with the intensity of water stress but were mitigated with experimental 38 duration. Our findings suggested that the overproduction of ROS was the primary 39 mechanism of plants in response to water stress and that plants tend to acclimate to 40 water stress over time to some extent. Our synthesis provides a framework for 41 understanding the responses and mechanisms of plants under drought conditions. 42 KEYWORDS 43 Water stress, plants, meta-analysis, reactive oxygen species, drought adaption 44 48 required for photosynthesis due to stomatal closure and reduced internal water 49 transport (Breda et al., 2006). As such, water stress impairs normal plant functionality 50 and further induces morphological, physiological, and biochemical changes to 51 compensate for water limitations (Mitchell et al., 2013; Lee et al., 2016). 52 Understanding the patterns and mechanisms of responses by plants to water stress is 53 central to predicting future plant functionality and resilience to drought episodes. 54 The impacts of water stress on plant growth, physiology, and biochemistry are 55 well documented, and numerous individual studies have examined the roles of plant 56 physiological indexes as relates to their tolerance to water stress (van der Molen et al., 57 2011; Zwicke et al., 2015). For plants, water limitations lead to the overproduction of 58 reactive oxygen species (ROS), such as hydrogen peroxide (H 2 O 2 ), and superoxide 59 anion radical (O 2̄· ), which results in growth inhibition (Wallace et al., 2016), 60 decreases in photosynthetic functions (Deeba et al., 2012), lipid peroxidation, and 61 further programmed cell death pro...

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Contribution of Chemometric Modeling to Chemical Risks Assessment for Aquatic Plants

Hamadache

Amrane

Benkortbi

et al. 2021

Chemometrics and Cheminformatics in Aquatic Toxicology

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Growth, physiological function, and antioxidant defense system responses of Lemna minor L. to decabromodiphenyl ether (BDE-209) induced phytotoxicity

Cited by 30 publications

References 62 publications

Differential Response of Sugar Beet to Long-Term Mild to Severe Salinity in a Soil–Pot Culture

Differential Response of Sugar Beet to Long-Term Mild to Severe Salinity in a Soil–Pot Culture

Response patterns and mechanisms of plants to water stress

Contribution of Chemometric Modeling to Chemical Risks Assessment for Aquatic Plants

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