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1

Riboflavin spraying impairs the antioxidant defense system but induces waterlogging tolerance in tobacco

100%

Deng B., Jin X.

Acta Physiologiae Plantarum

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2013

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tom 35

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nr 09

Riboflavin, which causes plants to produce reactive oxygen species (ROS) when exposed to light, is an excellent photosensitizer for biocidal reactions. This study explores the possible protective role of riboflavin against waterlogging stress in tobacco plants. Tobacco seedlings (4 weeks old) were divided into four groups and pretreated with 0, 0.2, 0.5 or 1.0 mM riboflavin for 1 week, after which all groups were exposed to waterlogging stress for 7 days. We observed delayed leaf senescence and extended survival time, suggesting that riboflavin can confer increased waterlogging tolerance to plants as compared with the control (0 mM riboflavin). Enhanced stomatal closure was observed in the riboflavin-pretreated tobacco. We evaluated the levels of oxidative damage (H2O2 and lipid peroxidation), antioxidant enzyme (superoxide dismutase, catalase, ascorbate peroxidase and glutathione reductase) activity and antioxidant metabolites (including ascorbate and glutathione) in tobacco leaves that were pretreated with riboflavin. However, the results show that riboflavin pretreatment caused a decrease in chlorophyll content, antioxidant enzyme activity and redox values (AsA/DHA and GSH/GSSG), while causing a significant increase in lipid peroxidation, H2O2 accumulation and total ascorbate or glutathione content. In addition, the survival time and stomatal aperture of riboflavin-treated plants were significantly modified by exogenous application of GSH, well-known ROS scavenger. To explain the stomatal closure observed in tobacco plants, we propose a ‘‘damage avoidance’’ hypothesis based on riboflavin-mediated ROS toxicity. The protective function of the photosensitizer riboflavin may be highly significant for farming in frequently waterlogged areas.

2

Interspecies competition between microcystis aeruginosa and Scenedesmus obliquus under phenanthrene stress

81%

Jin X., Jiang J., Sheng L., Jin M.

Polish Journal of Environmental Studies

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2014

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tom 23

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nr 5

Interspecies competition is considered an important effector of community structure in ecosystems. Interspecies interactions may change due to changing environmental factors, including exogenous organic pollutants. In this paper, we measured the change in population density, based on the logistical growth model, of Microcystis aeruginosa and Scenedesmus obliquus when they were cultivated in single-species and mixedspecies cultures, under the stress of the polycyclic aromatic hydrocarbon (PAH) phenanthrene. The singlespecies culture experiment showed that S. obliquus could tolerate greater phenanthrene stress than could M. aeruginosa, and exhibited hormesis when the concentration of phenanthrene was 0.0625 mg/l. In the mixedspecies culture experiment, the toxicity of phenanthrene on the two algae changed. In the 0.0625 mg/l and 0.25 mg/l treatments, the population density of S. obliquus increased, whereas the population density of M. aeruginosa in each group decreased. Finally, the influence of different phenanthrene concentrations on the interspecies competition was evaluated.

3

Genotypic difference in response of peroxidase and superoxide dismutase isozymes and activities to salt stress in barley

71%

Jin X., Huang Y., Zeng F., Zhou M., Zhang G.

Acta Physiologiae Plantarum

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2009

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tom 31

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nr 6

Difference in isozymes and activities of peroxidase (POD) and superoxide dismutase (SOD) in two barley (Hordeum vulgare L.) genotypes differing in salt tolerance (Gebeina, tolerant; Quzhou, sensitive) was investigated using a hydroponic experiment. The activities of both enzymes were significantly increased when the plants of the two barley genotypes were exposed to salt stress, with salt-tolerant genotype being generally higher than the sensitive one. The variation in the POD and SOD isozymes was dependent on barley genotype, salt level and exposure time. When the plants were exposed to salt stress for 10 days, two new POD isozymes were found, Rm0.26 (Rm, relative mobility of enzyme to dye) in Gebeina and Rm0.45 in Quzhou. Both isozymes disappeared after 20 days of salt stress, but Rm0.26 appeared again 30 days after the stress. Two new SOD isozymes of Rm0.19 and Rm0.46 were found in Gebeina when exposed to NaCl for 10 days, but only Rm0.46 in Quzhou. As the time of salt stress extended, more new SOD isozymes were detected, Rm0.35 in both genotypes in all different salt treatments and Rm0.48 in Gebeina under 200 mM NaCl stress. At 30 days after the stress, all the new SOD isozymes disappeared except for Rm0.48 in Gebeina under 200 mM NaCl stress. The results suggest that the increased POD and SOD activities could be partly due to the formation of some new isozymes and the tolerant variety had better ability to form new isozymes to overcome salt stress.

4

Analysis of sources and concentrations of heavy metal contents in PM10 over a four-season cycle in a heavily industrialised city in China

71%

Jin X., Fan J., Niu H., Ling P., Yu Q.

Polish Journal of Environmental Studies

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2019

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tom 28

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nr 5

In order to study the sources and concentrations of heavy metals in atmospheric PM₁₀, a total of 144 samples were collected in two areas of Handan, China. The metal contents of Mn, Co, Ni, Cu, Cd, and Pb in the sample were analysed by inductively coupled plasma mass spectrometry. Contamination characteristics and sources were analysed by the geo-accumulation index and the enrichment factor method. Results indicated that heavy metal elements Mn, Cu, and Pb accounted for 96.9% of the total concentration. In addition, the seasonal levels of concentrations of the six elements from high to low were in the order of winter > fall > spring > summer. In both areas, the metal contents of Cd, Pb, and Cu were at levels 6, 4 and 2, respectively. Co and Ni were not considered polluting elements. The element Cd was mainly from anthropogenic sources, while the element Mn was mainly from natural sources. The enrichment factor values of Cu and Pb were between 10 and 100. The study revealed that pollution by heavy metals in industrialised cities is astounding, and leads to serious consequences for human health. Urgent measures are required to reinforce prevention and control of this pollution.

5

Effect of iron supplementation on intestinal function and oxidative stress in piglets with induced colitis

71%

Chen Q., Le G. W., Shi Y. H., Zhang S. M., Jin X.

Journal of Animal and Feed Sciences

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2007

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tom 16

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nr 2

205-213

6

In vitro antioxidant activity of Artemisia argyi powder and the effect on hepatic and intestinal antioxidant indices in broiler chickens

61%

Zhang P., Chen H., Shi B., Zhao F., Guo X., Jin X., Yan S.

Annals of Animal Science

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2020

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tom 20

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nr 3

7

Proteomic analysis of plumules and coleoptiles in maize between hybrids and their corresponding inbred lines

61%

Jin X., Fu Z., Ding D., Li W., Liu Z., Hu Y., Tang J.

Acta Physiologiae Plantarum

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2014

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tom 36

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nr 02

The plumule and coleoptile influence the emergence and vigor of the seedling and demonstrate distinct heterosis during maize (Zea mays L.) development. Comparative two-dimensional analysis was performed on plumules and coleoptiles from 3.5 days-cultivated seedlings of five widely used hybrids in China and their corresponding parental lines to dissect the genetic mechanism of heterosis. Compared to their parental lines, 64 % (2,127/ 3,310) of the differentially expressed proteins were nonadditively accumulated in the five hybrids. Up-regulated above the high parent, a similar expression pattern in all five tested hybrids, was the major expression pattern accounting for 68 % (1,446/2,127) nonadditive proteins. Forty-two nonadditive protein spots with significant differences between the hybrids and their parental lines were analyzed by mass spectra. Homology searches separated them into six groups with two abundant functional classes of cell detoxification (33 %) and metabolism (26 %), implying their importance for heterotic manifestation of the different hybrids at 3.5 days-cultivated seedling stage. The differential accumulation and expression of herbicide safener protein 1 in cell detoxification implied that exploration of the molecular mechanism of heterosis should be studied in a systematic network. Four potential functional polymorphisms were identified in SBP1 gene providing possible interpretation for the differential expression of SBP1 at transcriptional and translational levels.

8

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Molecular characterization and expression patterns of ghrelin in the reindeer (Rangifer tarandus)

51%

Zhang M., Zhu X., Xu X., Jin X., Bao H., Dugger S., Du C., Cao G., Yang Y.

Polish Journal of Veterinary Sciences

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2018

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tom 21

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nr 1

9

Molecular cloning and expression analysis of two FAD2 genes from chia (Salvia hispanica)

51%

Xue Y., Yin N., Chen B., Liao F., Win A. N., Jiang J., Wang R., Jin X., Lin N., Chai Y.

Acta Physiologiae Plantarum

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2017

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tom 39

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nr 04

Ograniczanie wyników

Riboflavin spraying impairs the antioxidant defense system but induces waterlogging tolerance in tobacco

Interspecies competition between microcystis aeruginosa and Scenedesmus obliquus under phenanthrene stress

Genotypic difference in response of peroxidase and superoxide dismutase isozymes and activities to salt stress in barley

Analysis of sources and concentrations of heavy metal contents in PM10 over a four-season cycle in a heavily industrialised city in China

Effect of iron supplementation on intestinal function and oxidative stress in piglets with induced colitis

In vitro antioxidant activity of Artemisia argyi powder and the effect on hepatic and intestinal antioxidant indices in broiler chickens

Proteomic analysis of plumules and coleoptiles in maize between hybrids and their corresponding inbred lines

Molecular characterization and expression patterns of ghrelin in the reindeer (Rangifer tarandus)

Molecular cloning and expression analysis of two FAD2 genes from chia (Salvia hispanica)