Molecular and Catalytic Properties of Glutathione Peroxidase Family Proteins from Pinus tabulaeformis

Zhao, Li Tao; Han, Xue-Min; Wang, Wei; Yang, Hai-Ling

doi:10.1007/s11105-013-0692-y

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…To assess the evolutionary relationship between potato GPXL proteins, a neighbor-joining tree (NJ) was constructed using MEGA 11.0 software, and phylogenetic analysis was performed. In addition to potato GPXL proteins, the phylogenetic tree included GPXL proteins from model dicots ( Arabidopsis thaliana [ 6 ], Manihot esculenta Crantz , Solanum lycopersicum [ 11 ], Camellia sinensis , Nicotiana attenuata ), monocots ( Oryza sativa [ 6 ], Zea mays L. [ 1 ], Brachypodium distachyon [ 1 ], Sorghum bicolor [ 7 ]), and gymnosperm Pinus tabulaeformis Carr [ 10 ] ( Table A1 ). As shown in Figure 2 , all potato GPXL genes were aggregated in the same branch as the GPXL genes in dicots.…”

Section: Resultsmentioning

confidence: 99%

“…So far, the GPXL gene family has been explored in many plants such as Arabidopsis thaliana [ 4 ], Oryza sativa [ 6 ], Sorghum bicolor [ 7 ], Zea mays, Brachypodium distachyon [ 1 ], Gossypium hirsutum [ 8 ], Panax ginseng [ 9 ], Pinus tabulaeformis [ 10 ], Solanum lycopersicum [ 11 ], Cucumis sativus [ 12 ], Citrus sinensis [ 13 ], etc. Numerous studies have demonstrated the involvement of the GPXL gene in stress response, highlighting its crucial role in safeguarding plants against diverse biotic and abiotic stressors including oxidative stress, drought, extreme temperatures, salinity, metal toxicity, and pathogen attacks [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

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Genome-Wide Analysis and Expression Profiling of the Glutathione Peroxidase-like Enzyme Gene Family in Solanum tuberosum

Wang

Sun

Miao

et al. 2023

IJMS

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Glutathione peroxidase-like enzyme is an important enzymatic antioxidant in plants. It is involved in scavenging reactive oxygen species, which can effectively prevent oxidative damage and improve resistance. GPXL has been studied in many plants but has not been reported in potatoes, the world’s fourth-largest food crop. This study identified eight StGPXL genes in potatoes for the first time through genome-wide bioinformatics analysis and further studied the expression patterns of these genes using qRT-PCR. The results showed that the expression of StGPXL1 was significantly upregulated under high-temperature stress, indicating its involvement in potato defense against high-temperature stress, while the expression levels of StGPXL4 and StGPXL5 were significantly downregulated. The expression of StGPXL1, StGPXL2, StGPXL3, and StGPXL6 was significantly upregulated under drought stress, indicating their involvement in potato defense against drought stress. After MeJA hormone treatment, the expression level of StGPXL6 was significantly upregulated, indicating its involvement in the chemical defense mechanism of potatoes. The expression of all StGPXL genes is inhibited under biotic stress, which indicates that GPXL is a multifunctional gene family, which may endow plants with resistance to various stresses. This study will help deepen the understanding of the function of the potato GPXL gene family, provide comprehensive information for the further analysis of the molecular function of the potato GPXL gene family as well as a theoretical basis for potato molecular breeding.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Genome-Wide Analysis and Expression Profiling of the Glutathione Peroxidase-like Enzyme Gene Family in Solanum tuberosum

Wang

Sun

Miao

et al. 2023

IJMS

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show abstract

“…Phylogenetic studies of GPX genes from different plant species showed that their number varies between 2 and 25 [ 39 , 40 , 41 ]. For example, two GPX genes were identified in Physcomitrella patens [ 39 ] and Panax ginseng [ 42 ], three in Hordeum vulgare [ 43 ] and Vigna radiata [ 44 ], four in Pinus tabulaeformis [ 45 ] and Brachypodium distachyon [ 39 ], and five genes in Oryza sativa [ 16 , 39 ], Phoenix dactylifera (date palm) [ 46 ], Populus trichocarpa [ 26 ], Ricinus communis [ 47 ], and Solanum lycopersicum [ 39 ]. Six GPXs are encoded by Cucumis sativus [ 48 ], Citrullus lanatus [ 49 ] and Lotus japonica [ 50 ] genome, seven genes were found in Sorghum bicolor [ 51 ] and Zea mays [ 52 ], while there are eight in Arabidopsis thaliana [ 53 ] and Brassica oleracea [ 40 ].…”

Section: Phylogenetic Aspects Of Plant Gpxsmentioning

confidence: 99%

Plant Glutathione Peroxidases: Non-Heme Peroxidases with Large Functional Flexibility as a Core Component of ROS-Processing Mechanisms and Signalling

2022

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Glutathione peroxidases (GPXs) are non-heme peroxidases catalyzing the reduction of H2O2 or organic hydroperoxides to water or corresponding alcohols using glutathione (GSH) or thioredoxin (TRX) as a reducing agent. In contrast to animal GPXs, the plant enzymes are non-seleno monomeric proteins that generally utilize TRX more effectively than GSH but can be a putative link between the two main redox systems. Because of the substantial differences compared to non-plant GPXs, use of the GPX-like (GPXL) name was suggested for Arabidopsis enzymes. GPX(L)s not only can protect cells from stress-induced oxidative damages but are crucial components of plant development and growth. Due to fine-tuning the H2O2 metabolism and redox homeostasis, they are involved in the whole life cycle even under normal growth conditions. Significantly new mechanisms were discovered related to their transcriptional, post-transcriptional and post-translational modifications by describing gene regulatory networks, interacting microRNA families, or identifying Lys decrotonylation in enzyme activation. Their involvement in epigenetic mechanisms was evidenced. Detailed genetic, evolutionary, and bio-chemical characterization, and comparison of the main functions of GPXs, demonstrated their species-specific roles. The multisided involvement of GPX(L)s in the regulation of the entire plant life ensure that their significance will be more widely recognized and applied in the future.

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Glutathione Peroxidases in Plants: Innumerable Role in Abiotic Stress Tolerance and Plant Development

Madhu

Sharma

Kaur

et al. 2022

J Plant Growth Regul

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Molecular and Catalytic Properties of Glutathione Peroxidase Family Proteins from Pinus tabulaeformis

Cited by 4 publications

References 21 publications

Genome-Wide Analysis and Expression Profiling of the Glutathione Peroxidase-like Enzyme Gene Family in Solanum tuberosum

Genome-Wide Analysis and Expression Profiling of the Glutathione Peroxidase-like Enzyme Gene Family in Solanum tuberosum

Plant Glutathione Peroxidases: Non-Heme Peroxidases with Large Functional Flexibility as a Core Component of ROS-Processing Mechanisms and Signalling

Glutathione Peroxidases in Plants: Innumerable Role in Abiotic Stress Tolerance and Plant Development

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