Adversity stress-related responses at physiological attributes, transcriptional and enzymatic levels after exposure to Cu in Lycopersicum esculentm seedlings

Zhang, Jihong; Zeng, Li; Sun, Helong; Wu, Hai Jun; Chen, Shaoyang

doi:10.1016/j.scienta.2017.05.027

Cited by 10 publications

(5 citation statements)

References 53 publications

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“…However, our results showed that CAT was suppressed under the higher Cu stress. These findings are similar to some previous research (Draobzkiewicz et al, 2004; Kanoun‐Boulé et al, 2009; Zhang et al, 2017), and the differences found may be attributable to the different plant species used, different experimental methods or other unknown reasons.…”

Section: Discussionsupporting

confidence: 92%

“…Our results revealed that the level of SOD and POD increased under higher Cu concentrations, which indicates that these enzymes provide a good defence mechanism against Cu stress. Similar results were reported in response to Cu exposure in Avena sativa (Luna et al, 1994), Arabidopsis thaliana (Drążkiewicz et al, 2004) and Lycopersicum esculentum (Zhang et al, 2017). However, our results showed that CAT was suppressed under the higher Cu stress.…”

Section: Discussionsupporting

confidence: 77%

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Analysis of physiological and metabolite response of Celosia argentea to copper stress

Wang

et al. 2021

Plant Biol J

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Copper‐tolerant (Cu) plants with high ornamental value play an important role in the ecological restoration of the copper tail mining area. We first discovered Celosia argentea adaptability in a copper mine area in China; however, its resistance to Cu and the underlying mechanism are not clear. In this study, C. argentea was selected for pot culture experiments. Its heavy metal accumulation and translocation, physiological and metabolic products were analysed under different growth concentrations of Cu (0–2400 mg.kg−1) stress. Our results indicated that roots strongly accumulated Cu2+. Oxidative stress defence mechanisms were activated in leaves under Cu treatment. Higher Cu concentrations triggered higher electrolyte leakage (EL), Malondialdehyde (MDA), superoxide dismutase (SOD) and peroxidase (POD) activity, and consequently a higher capacity to scavenge oxygen radicals and maintain cellular membrane integrity. In the citrate cycle, some amino acids and sugars related to biological pathways were altered in C. argentea exposed to Cu stress. Metabolomics data revealed that C. argentea used elevated sugar content as an antioxidant to regulate reactive oxygen species (ROS). Some organic acids and amino acids were up‐regulated compared with the control, indicating that these may chelate Cu in cells to remove excess Cu2+. The up‐regulation of polyamines and some organic acids may mitigate oxidative stress. These results indicate that C. argentea could be used as a Cu‐tolerant plant in Cu mine restoration. Its Cu tolerance mechanism also provides a basis for future plant improvement or breeding for use in mine restoration.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 77%

Analysis of physiological and metabolite response of Celosia argentea to copper stress

Wang

et al. 2021

Plant Biol J

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“…APX is the main enzyme to effectively remove reactive oxygen species in plants, which improves plant resistance (Sarowar et al, 2005). Under adversity stress, plants usually upregulate the expression levels of one or more antioxidant enzyme genes, to enhance plant resistance (Hu et al, 2012;Zhang et al, 2017). The changes in leaf CsAPX expression of tea plants under mycorrhization are in line with the result reported by Liu et al (2011) in Cucumis sativus plants colonized by F. mosseae under low temperature conditions.…”

Section: Discussionsupporting

confidence: 79%

Arbuscular Mycorrhiza Improves Leaf Food Quality of Tea Plants

Shao

Zhang

et al. 2019

Not Bot Horti Agrobo

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Tea (Camellia sinensis) plants inhabit arbuscular mycorrhizal fungi (AMF) in rhizosphere, whereas it is not clear whether AMF improves leaf food quality of tea plants. A potted study was conducted to determine effects of Claroideoglomus etunicatum, Diversispora spurca, D. versiformis and a mixture of the three AMF species on leaf sugar, amino acid, soluble protein, tea polyphenol, catechuic acid, and flavonoid contents of Camellia sinensis ‘Fuding Dabaicha’ seedlings. After 12 weeks of AMF inoculation, mycorrhizal plants recorded significantly higher shoot biomass and total leaf area, whilst the effect was ranked as C. etunicatum > D. spurca > mixed-AMF > D. versiformis in the decreasing order. AMF treatments significantly increased leaf total amino acid concentrations, accompanied with up-regulation of amino acid synthetic enzymes genes glutamine synthetase (CsGS), glutamate synthase (CsGOGAT) and glutamate dehydrogenase (CsGDH). Leaf glucose, sucrose, total soluble protein, tea polyphenol, catechuic acid, and flavonoid contents were significantly higher in AMF- than in non-AMF-inoculated plants. In addition, mycorrhizal inoculation notably up-regulated the expression level of leaf 3-hydroxy-3-methylglutaryl coenzyme gene (CsHMGR), ascorbate peroxidase gene (CsAPX), and tea caffeine synthase 1 gene (CsTCS1). These results implied that AMF inoculation had positive effects on leaf food quality partly by means of up-regulation of relevant gene expression in ‘Fuding Dabaicha’ seedlings. ********* In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue. *********

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“…Colonic mucosal permeability was assayed using a modification of the method described by Lange et al 31 Briefly, a small catheter was placed into the distal rectum via the anus under general anaesthesia, and then the proximal colon and distal rectum were ligated. 0.5 ml of 1.5% (w/v) Evan's blue (Sigma) in PBS was instilled in the closed loop of the colon.…”

Section: Measurement Of Colonic Mucosal Permeabilitymentioning

confidence: 99%

Wild jujube polysaccharides protect against experimental inflammatory bowel disease by enabling enhanced intestinal barrier function

Yue

et al. 2015

Food Funct.

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Dietary polysaccharides provide various beneficial effects for our health. We investigated the protective effects of wild jujube (Ziziphus jujuba Mill. var. spinosa (Bunge) Hu ex H. F. Chou) sarcocarp polysaccharides (WJPs) against experimental inflammatory bowel disease (IBD) by enabling enhanced intestinal barrier function. Colitis was induced in rats by the intrarectal administration of TNBS. We found that WJPs markedly ameliorated the colitis severity, including less weight loss, decreased disease activity index scores, and improved mucosal damage in colitis rats. Moreover, WJPs suppressed the inflammatory response via attenuation of TNF-α, IL-1β, IL-6 and MPO activity in colitis rats. And then, to determine the effect of WJPs on the intestinal barrier, we measured the effect of WJPs on the transepithelial electrical resistance (TER) and FITC-conjugated dextran permeability in Caco-2 cell stimulation with TNF-α. We further demonstrated that the alleviation of WJPs to colon injury was associated with barrier function by assembly of tight junction proteins. Moreover, the effect of WJPs on TER was eliminated by the specific inhibitor of AMPK. AMPK activity was also up-regulated by WJPs in Caco-2 cell stimulation with TNF-α and in colitis rats. This study demonstrates that WJPs protect against IBD by enabling enhanced intestinal barrier function involving the activation of AMPK.

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Adversity stress-related responses at physiological attributes, transcriptional and enzymatic levels after exposure to Cu in Lycopersicum esculentm seedlings

Cited by 10 publications

References 53 publications

Analysis of physiological and metabolite response of Celosia argentea to copper stress

Analysis of physiological and metabolite response of Celosia argentea to copper stress

Arbuscular Mycorrhiza Improves Leaf Food Quality of Tea Plants

Wild jujube polysaccharides protect against experimental inflammatory bowel disease by enabling enhanced intestinal barrier function

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