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1

Effects of influent algae concentrations and seasonal variations on pollutant removal performance in high-rate algae ponds

100%

Ding Y., Song X., Wang W., Wang W.

Polish Journal of Environmental Studies

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2018

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tom 27

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nr 4

Algae can increase pH and dissolved oxygen via photosynthesis and affect the wastewater treatment performance of high-rate algae ponds (HRAPs). Nine laboratory-scale HRAPs divided into three groups were constructed to treat synthetic wastewater via six-month experiments. Higher algae concentrations in the influent of HRAPs effectively promoted the wastewater treatment performance. Seasonal variation had a significant impact on algal growth. Summer tests exhibited a higher reduction of pollutants than autumn tests. The high-influent algae concentration group in summer (HRAP-A) largely reduced the TN by 52.7±3.0%, TP by 90.3±1.0%, and dissolved chemical oxygen demand (DCOD) by 99.0±1.0%. It outperformed the low influent algae concentration group in summer (HRAP-B) and was significantly higher than the high influent algae concentration group in autumn (HRAP-C). The appropriate operation and design of HRAPs contributed to efficient wastewater treatments.

2

Improved salt tolerance in a wheat stay-green mutant tasg1

77%

Wang W., Tian F., Hao Q., Han Y., Li Q., Wang X., Wang W., Wang Y., Wang W.

Acta Physiologiae Plantarum

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2018

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tom 40

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nr 02

Salt stress inhibited the growth of both tasg1 and wild-type (WT) wheat seedlings, but the inhibition in tasg1 plants was relatively weaker than that of WT. Compared to the WT, the chlorophyll content, thylakoid membrane polypeptides, Hill reaction activity, actual photochemical efficiency of PSII (ΦPSII), and Mg²⁺- and Ca²⁺-ATPase activities were higher in tasg1 under salt stress. At the same time, the photosynthetic activity of the tasg1 was significantly higher than that of WT. In addition, tasg1 plants displayed relatively less accumulation of reactive oxygen species and oxidative damage accompanied by higher activity of some antioxidant enzymes, and the up-regulation of antioxidant genes further demonstrated the improvement of antioxidant activity in tasg1 under salt stress. Furthermore, tasg1 plants also showed relatively weaker Na⁺ fluorescence and lower Na⁺ content, but relatively higher content of K⁺ in their roots and shoots, and then, the roots of tasg1 plants enhanced net outward Na⁺ flux and a correspondingly increased net inward K⁺ flux during salt stress. This might be associated with the relatively higher activity of H⁺-ATPase in tasg1 plants. These results suggest that the improved antioxidant competence and Na⁺/K⁺ ion homeostasis play an important role in the enhanced salinity tolerance of tasg1 plants.

3

Comparative proteomic analysis of leaves between photoperiod-sensitive and photoperiod-insensitive maize inbred seedlings under long day treatments

72%

Wang N., Ku L., Chen Y., Wang W.

Acta Physiologiae Plantarum

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2015

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tom 37

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nr 01

Day length is an important environmental factor affecting the growth and development of maize (Zea mays), a short day (SD) plant grown in different latitudes. Leaf has been recognized as the light perceiving and signal producing organ. Under long day (LD) conditions, photoperiod- sensitive induction phase in maize begins at the fourth fully expanded leaf stage. However, the changes of maize leaf proteome in response to LD are largely unknown. To reveal maize proteome response to LD, proteins extracted from newly expanded fifth, sixth and seventh leaves from maize inbred line 496-10 (photoperiod sensitive) and Huangzao4 (HZ4, photoperiod insensitive) under LD treatments were compared via gel-based proteomic approach. As a result, eleven differentially expressed proteins were identified between 496-10 and HZ4 by mass spectrometry. This difference in protein accumulation was highly reproducible during the fifth to seventh leaf stages and most obvious at the seventh leaf stage. The identified proteins are mainly involved in circadian clock or iron metabolism, light harvesting and photosynthesis, nucleic acid metabolism and carbon fixation or energy metabolism. This study provides new insight into the influences of LD treatment on SD plants, such as maize, at proteome level.

4

An optimization approach to the intermodal transportation network in fruit cold chain, considering cost, quality degradation and carbon dioxide footprint

72%

Ma Q., Wang W., Peng Y., Song X.

Polish Maritime Research

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2018

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tom 25

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nr 1

This model optimizes port hinterland intermodal refrigerated container flows , considering both cost and quality degradation, which is distinctive from the previous literature content in a way that it quantifies the influence of carbon dioxide (CO2) emission in different setting temperature on intermodal network planning. The primary contribution of this paper is that the model is beneficial not only to shippers and customers for the novel service design, but also offer , for policy-makers of the government, insights to develop inland transport infrastructures in consideration of intermodal transportation. The majority of models of multimodal system have been established with an objective of cost minimization for normal commodities. As the food quality is possible to be influenced by varying duration time required for the storage and transportation, and transportation accompanied with refrigeration producing more CO2 emission, this paper aims to address cost minimization and quality degradation minimization within the constraint of CO2 footprint. To achieve this aim, we put the quality degradation model in a mixed-integer linear programming model used for intermodal network planning for cold chain. The example of Dalian Port and Yingkou Port offer insight into trade-offs between transportation temperature and transport mode considering CO2 footprint. Furthermore, the model can offer a useful reference for other regions with the demand for different imported food, which requires an uninterrupted cold chain during the transportation and storage

5

Prediction of the distribution of Alpine tree species under climate change scenarios: Larix chinensis in Taibai Mountain (China)

72%

Zhao X., Meng H., Wang W., Yan B.

Polish Journal of Ecology

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2016

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tom 64

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nr 2

Larix chinensis, an endangered and endemic alpine tree, occurs on Mt. Taibai in the Qinling Mountains, China. The extreme sensitivity of this species to climate change makes predicting its future distribution important. Using high-resolution remote-sensing imagery, and the Maxent model, we analysed the current distribution and forecast future distribution of L. chinensis under two climate change scenarios, IPCC A2 and IPCC B2. The results showed that three dominant climatic factors influenced the geographic distribution of L. chinensis: mean annual temperature, mean temperature of the coldest quarter, and precipitation of wettest month. Currently, L. chinensis mainly concentrated at 3100 m and covers an area of 53.52 km². The population on the southern slope covers approximately twice the area of that on the northern slope; the model simulations indicated that the area of suitable habitat would decrease continually under two climate change scenarios, A2 and B2; the decrease was more obvious in scenario A2, and the range in scenario A2 covers approximately twice the area of that in scenario B2. Under both scenarios, L. chinensis would first be extirpated at lower elevations, and the suitable habitat of this species would move to higher elevations in the Taibai Mountains.

6

Characterization and localization of 11S-type storage proteins during olive seed development and germination

72%

Jimenez J. C., Alche J. D., Wang W., Rodriguez-Garcia M. I.

Acta Physiologiae Plantarum

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2004

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tom 26

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nr 3 suppl.

7

The contribution of cyanobacteria bloom decline to phosphorus in water column of Dianchi Lake, China

72%

Zhang S., Wang W., Chang J.

Polish Journal of Environmental Studies

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2019

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tom 28

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nr 5

Bloom-Cyanobacteria can release phosphorus (P) into overlying water during their decline period, thus inevitably providing available P for the next round of bloom. In order to quantitatively evaluate the contribution of cyanobacterial bloom decline to P amounts in Caohai, a typical cyanobacteria-dominated sub-lake in northern Dianchi Lake, the P concentrations in algae during the peak and bottom of cyanobacterial bloom were measured and calculated. Remote sensing monitoring analysis and monthly monitoring data showed that the cyanobacterial bloom in Caohai developed from June, reached its peak in July to August and then declined to its bottom from December to February. The concentrations of different phosphorus forms contained in algal cells were different between the peak and bottom of the cyanobacterial bloom. Total phosphorus (TP) concentration in algae (TP-A) were higher in summer than in winter, while the TP content per unit Chl-a in winter was much larger than in summer. The annual released TP was approximately 24.12 tons in 2016, and its potential contribution to TP and Ortho-P in water body of Caohai was around 0.958 and 0.647 mg⋅L⁻¹, respectively. The P release amount was 303.30 and 20.57 tons in 2011 and 2014, respectively. For Caohai of Dianchi Lake, the P released from bloom-cyanobacteria could provide adequate P for the next year’s bloom recovery.

8

Yak [Bos grunniens L.] grazing effects on vegetation of alpine meadow with Potentilla fruticosa L. [Rosaceae] shrub in Qinghai-Tibet Plateau

72%

Qiao Y., Wang Q., Wang W.

Polish Journal of Ecology

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2009

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tom 57

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nr 4

769-777

Grazing can change plant community composition and structure, which may alter the functions of the shrub meadow ecosystem. Grazing effects on Potentilla fruticosa shrub community in the headwater region of the Yellow River, which is in core area of the Qinghai-Tibet Plateau, are studied to provide adequate protection decision-making. We investigated continuous grazing and seasonal enclosure effects on P. fruticosa shrub communities. Three sites of P. fruticosa shrub comprising both continuous grazing and seasonal enclosure treatments were selected. The size of each fenced plot of P. fruticosa shrub was about 3000 m², the stocking rate was about 5 heads per 100 m² in continuous grazing treatment. Three samplings were made in each growing season of 2003 and 2004. Cover of vegetation, plant species composition and vegetation height were investigated in seven 1 × 1 m quadrates in each treatment. Above-ground biomass was measured in five 0.5 × 0.5 m quadrates. Shrub, forb, graminoid and sedge plant materials were clipped at ground level and oven-dried at 85ºC to a constant mass. Plant composition was affected by long term continuous grazing and changes were caused by forb species shifting. No apparent difference in species richness between the grazed and ungrazed communities over the growing months were found but the Shannon’s diversity indices of the grazed communities in June and July were higher than that of the ungrazed but lower in the late August and September. Live vegetation cover was reduced by 6.7%, 7.3% and 11.5%, respectively, owing to grazing in July, August and September, but not in June (P> 0.05). Forbs took up more than 50% cover of the vegetation in both grazed and ungrazed treatments. Relative cover of sedges and forbs in ungrazed treatment decreased in July, August and September, while that of graminoids increased more than 70% in the same period. Live vegetation height was reduced by 27% (2004) and 23% (2003) in late August and early September, but not in early growing season. Grazing reduced total above-ground biomass by 35%, 37% and 36% in July, August and early September, respectively, and the reduction was mainly in forb biomass. Continuous grazing affects plant composition and species diversity. The quantitative characteristics of P. fruticosa communities were influenced by grazing over growing months, but the effects were offset by non-growing season grazing.

9

72%

Li S., Wang Q., Jing Z., Wang W.

Polish Journal of Ecology

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2009

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tom 57

|

nr 3

495-502

Grassland degradation due to anthropogenic and natural factors and their interactions is one of the worldwide ecological and economic problems because it reduces grassland productivity and diversity and leads to desertification. The objective of this study was to assess the influence of protective enclosure on vegetation composition and diversity and plant biomass of an alpine degraded meadow. The experiment was conducted at center of Qinghai-Tibetan Plateau with two degraded (caused by overgrazing) alpine meadows: the lightly and severely degraded ones (LD and SD) and their enclosed areas with iron net (LDE and SDE, respectively). The areas 200 m × 150 m for each of four degraded alpine meadow treatments at average altitude 3,960 m a.s.l. were set for research. The lightly degraded plots were dominated by Scirpus distigmaticus (Kukenth.) Tang et Wang, Elymus nutans Griseb. and Oxytropis ochrocephala Bunge. The dominating plants in severely degraded plots were: Artemisia sieversiana Ehrhart ex Willd, Ajania tenuifolia (Jacq.) Tzvel, Lonicera minuta Batal. The results showed: (1) the vegetation cover of two degraded plots (LD and SD) has increased after taking the enclosure measures and the forbs dominated both plots. (2) Species richness has also increased in two enclosed degraded plots, respectively. There no significant differences in evenness and diversity between LD and LDE, and SD and SDE, respectively. (3) Enclosure may promote aboveground biomass, particularly grass and forb biomass in LD, and forb biomass in SD plots.

15

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Hydrogen sulfide is involved in the chilling stress response in Vitis vinifera L.

72%

Fu P., Wang W., Hou L., Liu X.

Acta Societatis Botanicorum Poloniae

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2013

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tom 82

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nr 4

Hydrogen sulfide (H2S) is an important signaling molecule involved in several stress-resistance processes in plants, such as drought and heavy metal stresses. However, little is known about the roles of H2S in responses to chilling stress. In this paper, we demonstrated that chilling stress enhance the H2S levels, the H2S synthetase (L-/D-cysteine desulfhydrase, L/DCD) activities, and the expression of L/DCD gene in Vitis vinifera L. ‘F-242’. Furthermore, the seedlings were treated with sodium hydrosulfide (NaHS, a H2S donor) and hypotaurine (HT, a H2S scavenger) at 4°C to examine the effects of exogenous H2S on grape. The results revealed that the high activity of superoxide dismutase and enhanced expression of VvICE1 and VvCBF3 genes, but low level of superoxide anion radical, malondialdehyde content and cell membrane permeability were detected after addition of NaHS. In contrast, HT treatment displayed contrary effect under the chilling temperature. Taken together, these data suggested that H2S might be directly involved in the cold signal transduction pathway of grape.

16

Evaluation and improvement of spectrophotometric assays of TTC reduction: maize (Zea mays) embryo as an example

72%

Zhao P., Zhu Y., Wang W.

Acta Physiologiae Plantarum

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2010

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tom 32

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nr 4

The triphenyl tetrazolium chloride (TTC) reduction assay was evaluated and improved with maize seed (Zea mays cv. Zhengdan958). The reduced TTC in embryo was extracted with three kinds of organic solvents: trichloroacetic acid (TCA)/acetone, ethanol, and acetone. The absorbance spectra of the three extracts were similar, with a maximum at 485 nm. The efficiency of TCA/acetone in extracting the reduced TTC was higher than that of acetone and ethanol. A negative correlation between TTC reduction and malondialdehyde content in embryo was demonstrated. The TCA/acetone extraction may be used as a routine protocol for TTC reduction assay of seed vigor in cereal (e.g. maize, rice, wheat and barley) seeds.

17

Effects of niclosamide on Oncomelania hupensis, the intermediate snail host of Schistosoma japonicum: an enzyme-histochemical study

72%

Wang W., Li H., Liang Y., Dai J.

Acta Parasitologica

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2009

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tom 54

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nr 2

172-179

An enzyme-histochemical study of five enzymes, namely succinate dehydrogenase (SDH), lactate dehydrogenase (LDH), cytochrome oxidase (CCO), cholinesterase (CHE) and nitric oxide synthase (NOS), was elucidated in the soft tissues of Oncomelania hupensis, the intermediate host snail of Schistosoma japonicum, before and after the treatment with a suspension concentrate of niclosamide (SCN). Following the treatment of SCN, a marked loss occurred in the activity of the five enzymes mentioned above. LDH and SDH showed their strongest activity in the buccal mass and muscular fibers, CCO in buccal mass and liver, CHE in pellicle and ganglia, and NOS in muscular fibers and pharyngeal canal. The results indicate that SCN impairs the activities of the enzymes influencing the transfer of neurotransmitter and energy supply in O. hupensis, ultimately leading to the loss of various physiological functions, which is considered to be a cause of death in O. hupensis.

18

Histochemical and enzyme-histochemical studies of Oncomelania hupensis (Gredler, 1881), the intermediate host of Schistosoma japonicum

72%

Wang W., Dai J., Li H., Liang Y.

Acta Parasitologica

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2011

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tom 56

|

nr 1

The distribution of glycogen, DNA and histone, and localization of activity of ten enzymes such as glucose-6-phosphatase (G-6-Pase), cytochrome oxidase (CCO), lactate dehydrogenase (LDH), 5′-nucleotidase (5′-NT), succinate dehydrogenase (SDH), glucose-6-phosphate dehydrogenase (G-6-PDH), alkaline phosphatase (ALP), acid phosphatase (ACP), Mg2+-adenosine triphosphatase (Mg2+-ATPase), and cholinesterase (CHE) in Oncomelania hupensis (Gredler, 1881) snails, the intermediate host of Schistosoma japonicum, was surveyed using the histochemical and enzyme-histochemical techniques. The results showed that the glycogen with high activity was widely distributed in snails. DNA showed its strongest reaction in testis. The histone was distributed in sites of the radula, parenchyma of penis and ovary. LDH and SDH were widely distributed in snails and all were abundant. Sites of the strongest enzyme activities of G-6-PDH were evident in the reproductive system together with central ganglia. Only the ovary showed a strong enzyme activity of G-6-Pase. Most tissues and organs contained CCO, and the activity of this enzyme was very strong. 5′-NT showed a strong enzyme activity in the ovary and testis. Mg2+-ATPase was localized in sites of the liver, stomach and reproductive gland. A strong enzyme activity of ALP appeared in the digestive system. ACP showed a low activity in snails. The central ganglia, nervous stem, liver, branchial duct, epithelia of the head and foot regions showed a very strong enzyme activity of CHE. The findings could provide a theoretical basis for development of highly effective molluscicides with low toxicity to other biota, as well as means for novel snail control strategies.

19

Impact of hydrogen on the transcriptome of Sinorhizobium meliloti 1021 using RNA-sequencing technology

72%

Liu R., Li L., Li Z., Wang W.

Polish Journal of Microbiology

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2020

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tom 69

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nr 1

20

Physical mapping of rDNA in Dendranthema nankingense and its close related species by fluorescent in situ hybridization

72%

Wang W., Dai S., Li M.

Cellular and Molecular Biology Letters

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2002

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tom 07

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nr 3

Distribution of 18S-26S rDNA on the chromosomes of Dendranthema nankingense and its two close-related species D. nankingense and D. lavendulifolium was studied by ﬂuorescent in situ hybridization with a JHD 2-15A DNA clone: Six rDNA loci were found in D. nankingense, eight in D. lavendulifolium, and twelve in D. indicum. The rDNA loci number and pattern were applied to analyze the phylogenetic relationship of the three closely related species.

Ograniczanie wyników

Effects of influent algae concentrations and seasonal variations on pollutant removal performance in high-rate algae ponds

Improved salt tolerance in a wheat stay-green mutant tasg1

Comparative proteomic analysis of leaves between photoperiod-sensitive and photoperiod-insensitive maize inbred seedlings under long day treatments

An optimization approach to the intermodal transportation network in fruit cold chain, considering cost, quality degradation and carbon dioxide footprint

Prediction of the distribution of Alpine tree species under climate change scenarios: Larix chinensis in Taibai Mountain (China)

Characterization and localization of 11S-type storage proteins during olive seed development and germination

The contribution of cyanobacteria bloom decline to phosphorus in water column of Dianchi Lake, China

Yak [Bos grunniens L.] grazing effects on vegetation of alpine meadow with Potentilla fruticosa L. [Rosaceae] shrub in Qinghai-Tibet Plateau

A technique to study polarity tissues during early steps of zygote development in wheat (Triticum aestivum L.)

Characterization of olive seed storage proteins

Study on the design of container highway and railway automatic transfer vehicle in ocean port

The overaccumulation of glycinebetaine alleviated damages to PSII of wheat flag leaves under drought and high temperature stress combination

Long-term change in land management from subtropical wetland to paddy field shifts soil microbial community structure as determined by PLFA and T-RFLP

The effects of protective enclosure on vegetation diversity, and productivity of degraded Alpine Kobresia meadow [Qinghai-Tibetan Plateau]