Tolerance to clomazone herbicide is linked to the state of LHC, PQ-pool and ROS detoxification in tobacco (Nicotiana tabacum L.)

Darwish, Majd; Vidal, Véronique; Lopez-Lauri, Félicie; Alnaser, Osama; Junglee, Sanders; Maâtaoui, Mohamed El; Sallanon, Huguette

doi:10.1016/j.jplph.2014.11.009

Cited by 16 publications

(7 citation statements)

References 66 publications

(65 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The plants exposed to the A. armata cocktail showed an increase in the light-harvesting centres (LHCs), here evaluated through the Chl a/b ratio. This was also previously reported upon the application of clomazone herbicide in sensitive varieties [ 49 ]. Nevertheless, our data indicate that this tentative counteractive measure did not produce any significant effects, with the absorbed and trapped energy fluxes remaining low, even in the plants with a high Chl a/b ratio.…”

Section: Discussionsupporting

confidence: 80%

Potential of Asparagopsis armata as a Biopesticide for Weed Control under an Invasive Seaweed Circular-Economy Framework

Duarte

Carreiras

Feijão

et al. 2021

Biology

View full text Add to dashboard Cite

Marine macroalgae have been increasingly targeted as a source of bioactive compounds to be used in several areas, such as biopesticides. When harvesting invasive species, such as Asparagopsis armata, for this purpose, there is a two-folded opportunity: acquiring these biomolecules from a low-cost resource and controlling its spreading and impacts. The secondary metabolites in this seaweed’s exudate have been shown to significantly impact the physiology of species in the ecosystems where it invades, indicating a possible biocidal potential. Considering this in the present work, an A. armata exudate cocktail was applied in the model weed Thellungiella halophila to evaluate its physiological impact and mode of action, addressing its potential use as a natural biocide. A. armata greatly affected the test plants’ physiology, namely, their photochemical energy transduction pathway (impairing light-harvesting and chemical energy production throughout the chloroplast electron transport chain), carotenoid metabolism and oxidative stress. These mechanisms of action are similar to the ones triggered when using the common chemical pesticides, highlighting the potential of the A. armata exudate cocktail as an eco-friendly biopesticide.

show abstract

Section: Discussionsupporting

confidence: 80%

Potential of Asparagopsis armata as a Biopesticide for Weed Control under an Invasive Seaweed Circular-Economy Framework

Duarte

Carreiras

Feijão

et al. 2021

Biology

View full text Add to dashboard Cite

show abstract

“…5). Recent studies have used OJIP steps for the purpose to access the electron transport in PSII (Darwish et al 2015;Xiang et al 2016;Digrado et al 2017).…”

Section: Discussionmentioning

confidence: 99%

Impact of Fusarium verticillioides on chlorophyll fluorescence parameters of two maize lines

et al. 2019

View full text Add to dashboard Cite

Fusarium verticillioides is one of the most common phytopathogenic fungi affecting maize production, worldwide. The early identification of F. verticillioides infection in maize could be helpful to prevent the spreading of the fungus. Therefore, this study represents the use of chlorophyll fluorescence parameters to identify F. verticillioides infection in maize. Chlorophyll a fluorescence of control and F. verticillioides infected plants showed a typical polyphasic OJIP transient curve in both MO17 and B73 lines. Infected plants from both maize lines showed a different pattern of OJIP transient curve when compared to the control plants, respectively. This indicated that F. verticillioides had an effect on the photosynthesis of infected maize plants. This study demonstrated the importance of parameters such as: the activity of the watersplitting complex on the donor side of PSII (F v /F 0), minimum fluorescence (F 0), maximum fluorescence (F m), and absorption flux per one active reaction center (ABS/RC) to identify F. verticillioides infection in maize.

show abstract

“…Moreover, the redox state of PQ pool was found to be an upstream master switch associated with programmed cell death in Arabidopsis leaves in response to excess excitation energy and may be play a central role in the light acclimation of diatoms (Mühlenbock et al, 2008; Lepetit et al, 2013). PSII photoinhibition occurred as a consequence of more reduced PQ pool (Darwish et al, 2015). …”

Section: Physiological Functions Of Pq and Uq In Plantsmentioning

confidence: 99%

Plastoquinone and Ubiquinone in Plants: Biosynthesis, Physiological Function and Metabolic Engineering

Liu

2016

Front. Plant Sci.

124

View full text Add to dashboard Cite

Plastoquinone (PQ) and ubiquinone (UQ) are two important prenylquinones, functioning as electron transporters in the electron transport chain of oxygenic photosynthesis and the aerobic respiratory chain, respectively, and play indispensable roles in plant growth and development through participating in the biosynthesis and metabolism of important chemical compounds, acting as antioxidants, being involved in plant response to stress, and regulating gene expression and cell signal transduction. UQ, particularly UQ10, has also been widely used in people’s life. It is effective in treating cardiovascular diseases, chronic gingivitis and periodontitis, and shows favorable impact on cancer treatment and human reproductive health. PQ and UQ are made up of an active benzoquinone ring attached to a polyisoprenoid side chain. Biosynthesis of PQ and UQ is very complicated with more than thirty five enzymes involved. Their synthetic pathways can be generally divided into two stages. The first stage leads to the biosynthesis of precursors of benzene quinone ring and prenyl side chain. The benzene quinone ring for UQ is synthesized from tyrosine or phenylalanine, whereas the ring for PQ is derived from tyrosine. The prenyl side chains of PQ and UQ are derived from glyceraldehyde 3-phosphate and pyruvate through the 2-C-methyl-D-erythritol 4-phosphate pathway and/or acetyl-CoA and acetoacetyl-CoA through the mevalonate pathway. The second stage includes the condensation of ring and side chain and subsequent modification. Homogentisate solanesyltransferase, 4-hydroxybenzoate polyprenyl diphosphate transferase and a series of benzene quinone ring modification enzymes are involved in this stage. PQ exists in plants, while UQ widely presents in plants, animals and microbes. Many enzymes and their encoding genes involved in PQ and UQ biosynthesis have been intensively studied recently. Metabolic engineering of UQ10 in plants, such as rice and tobacco, has also been tested. In this review, we summarize and discuss recent research progresses in the biosynthetic pathways of PQ and UQ and enzymes and their encoding genes involved in side chain elongation and in the second stage of PQ and UQ biosynthesis. Physiological functions of PQ and UQ played in plants as well as the practical application and metabolic engineering of PQ and UQ are also included.

show abstract

Tolerance to clomazone herbicide is linked to the state of LHC, PQ-pool and ROS detoxification in tobacco (Nicotiana tabacum L.)

Cited by 16 publications

References 66 publications

Potential of Asparagopsis armata as a Biopesticide for Weed Control under an Invasive Seaweed Circular-Economy Framework

Potential of Asparagopsis armata as a Biopesticide for Weed Control under an Invasive Seaweed Circular-Economy Framework

Impact of Fusarium verticillioides on chlorophyll fluorescence parameters of two maize lines

Plastoquinone and Ubiquinone in Plants: Biosynthesis, Physiological Function and Metabolic Engineering

Contact Info

Product

Resources

About