Peroxidase-catalysed chlorophyll destruction accompanied by the formation of electronically excited states: chlorophyll emission not due to energy transfer from excited substrate metabolites

Baader, W. J.; Gillo, Virginia E.

doi:10.1016/s1010-6030(96)04424-3

Cited by 5 publications

(2 citation statements)

References 73 publications

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“…The CL emission spectrum is characterized by a broad band (510–580 nm), which is centered at 535 nm (Figure F and Supporting Information Figure S1). It is worth noting that CL could be also generated from horseradish peroxidase (HRP) catalyzed decomposition of chlorophenol in the presence of H 2 O 2 …”

Section: Resultsmentioning

confidence: 99%

Intrinsic Chemiluminescence Generation during Advanced Oxidation of Persistent Halogenated Aromatic Carcinogens

Mao

Liu

Huang

et al. 2015

Environ. Sci. Technol.

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ABSTRACT:The ubiquitous distribution coupled with their carcinogenicity has raised public concerns on the potential risks to both human health and the ecosystem posed by the halogenated aromatic compounds (XAr). Recently, advanced oxidation processes (AOPs) have been increasingly favored as an "environmentally-green" technology for the remediation of such recalcitrant and highly toxic XAr. Here, we show that AOPs-mediated degradation of the priority pollutant pentachlorophenol and all other XAr produces an intrinsic chemiluminescence that directly depends on the generation of the extremely reactive hydroxyl radicals. We propose that the hydroxyl radical-dependent formation of quinoid intermediates and electronically excited carbonyl species is responsible for this unusual chemiluminescence production. A rapid, sensitive, simple, and effective chemiluminescence method was developed to quantify trace amounts of XAr and monitor their real-time degradation kinetics. These findings may have broad biological and environmental implications for future research on this important class of halogenated persistent organic pollutants.

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Section: Resultsmentioning

confidence: 99%

Intrinsic Chemiluminescence Generation during Advanced Oxidation of Persistent Halogenated Aromatic Carcinogens

Mao

Liu

Huang

et al. 2015

Environ. Sci. Technol.

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“…Since, enhanced photosynthetic efficiency is a function of increased amount of chlorophyll content both under stress and non-stress conditions, targeting relative chlorophyll content has been a regular practice of breeders to select genotypes as a proxy trait for improved grain yield 86 , 87 . For relative chlorophyll content (RC), two genes TraesCS1D02G355200 and TraesCS1D02G354100 associated with SNP AX95247332 (6.89% PVE) on Chr1D that translates into “ Hexokinases-2 ” and “ Peroxidase 1 ”, respectively have been reported to catalyze chlorophyll destruction leading to leaf senescence 88 – 90 . Also, SNP AX94449793 (3.38% PVE) on Chr5B associated with TraesCS5B02G368900 that translates into “ Chloroplastic Chaperon 60 subunit α-2 ” has been reported to play an important role in protein transport under stress conditions 91 , 92 .…”

Section: Discussionmentioning

confidence: 99%

Discovering novel genomic regions explaining adaptation of bread wheat to conservation agriculture through GWAS

Mazumder,

Yadav,

Kumar

et al. 2024

Sci Rep

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To sustainably increase wheat yield to meet the growing world population’s food demand in the face of climate change, Conservation Agriculture (CA) is a promising approach. Still, there is a lack of genomic studies investigating the genetic basis of crop adaptation to CA. To dissect the genetic architecture of 19 morpho-physiological traits that could be involved in the enhanced adaptation and performance of genotypes under CA, we performed GWAS to identify MTAs under four contrasting production regimes viz., conventional tillage timely sown (CTTS), conservation agriculture timely sown (CATS), conventional tillage late sown (CTLS) and conservation agriculture late sown (CALS) using an association panel of 183 advanced wheat breeding lines along with 5 checks. Traits like Phi2 (Quantum yield of photosystem II; CATS:0.37, CALS: 0.31), RC (Relative chlorophyll content; CATS:55.51, CALS: 54.47) and PS1 (Active photosystem I centers; CATS:2.45, CALS: 2.23) have higher mean values in CA compared to CT under both sowing times. GWAS identified 80 MTAs for the studied traits across four production environments. The phenotypic variation explained (PVE) by these QTNs ranged from 2.15 to 40.22%. Gene annotation provided highly informative SNPs associated with Phi2, NPQ (Quantum yield of non-photochemical quenching), PS1, and RC which were linked with genes that play crucial roles in the physiological adaptation under both CA and CT. A highly significant SNP AX94651261 (9.43% PVE) was identified to be associated with Phi2, while two SNP markers AX94730536 (30.90% PVE) and AX94683305 (16.99% PVE) were associated with NPQ. Identified QTNs upon validation can be used in marker-assisted breeding programs to develop CA adaptive genotypes.

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Pretreatment of sludge with sodium iron chlorophyllin-H2O2 for enhanced biogas production during anaerobic digestion

Chen

Liu

et al. 2022

Environmental Research

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Peroxidase-catalysed chlorophyll destruction accompanied by the formation of electronically excited states: chlorophyll emission not due to energy transfer from excited substrate metabolites

Cited by 5 publications

References 73 publications

Intrinsic Chemiluminescence Generation during Advanced Oxidation of Persistent Halogenated Aromatic Carcinogens

Intrinsic Chemiluminescence Generation during Advanced Oxidation of Persistent Halogenated Aromatic Carcinogens

Discovering novel genomic regions explaining adaptation of bread wheat to conservation agriculture through GWAS

Pretreatment of sludge with sodium iron chlorophyllin-H2O2 for enhanced biogas production during anaerobic digestion

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