Wyniki wyszukiwania

1

Embriogeneza somatyczna soi

100%

Nawracala J., Zhou X.

Biotechnologia

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2001

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nr 2

2

Effect of 5 years long cessation of grazing on methane uptake in a semi-arid grassland

100%

Zhou X., Hao Y.

Polish Journal of Ecology

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2010

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tom 58

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nr 4

Grazing exerts a key role in nutrient cycling in grassland ecosystems, however, little is known about the effe cts of short-term enclosure on methane (CH₄) fluxes in a semi-arid steppe biome like this of Inner Mongolia. CH₄ fluxes were measured in the Leymus chinensis (Trin) Tzvel. grassland using static chamber and gas chromatography (GC). Measurements were carried out twice per month over a growing season in 2004 at the two sites (one fenced since 1999 (UG99) and the other subjected to freely grazing (FG)). All CH₄ fluxes were positive, indicating that this grassland functioned as the active atmospheric CH₄ uptakes. During this period, the UG99 site (57.6 ± 6.7 μg C m⁻² h⁻¹) had significantly higher mean CH₄ uptake in comparison to the FG site (37.0 ± 6.3 μg C m⁻² h⁻¹). A significant liner negative correlations between CH₄ uptake and soil moisture (0–5 cm) at the both sites were found (P <0.05). The results indicated that short-term enclosure was helpful to improve CH₄ uptake in this area.

3

Forced motion CFD simulation and load refinement evaluation of floating vertical-axis tidal current turbines

81%

Zhang W., Zhou Y., Wang K., Zhou X.

Polish Maritime Research

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2020

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tom 27

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nr 3

4

Recent trends and advances in identification and functional characterization of plant miRNAs

81%

Zhou X., Khare T., Kumar V.

Acta Physiologiae Plantarum

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2020

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tom 42

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nr 02

5

Pontigulasia pentangulostoma nov.spec., a new testate amoeba from the Da Jiuhu peatland of the Shennongjia Mountains, China

81%

Qin Y., Xie S., Gu Y., Zhou X.

Acta Protozoologica

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2008

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tom 47

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nr 2

155-160

6

Effects of various factors on the viv-inducted fatigue damage in the cable of submerged floating tunnel

81%

Luo G., Chen J., Zhou X.

Polish Maritime Research

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2015

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tom 22

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nr 4

According to the modal superposition method, the vortex vibration procedure of submerged floating tunnel cable was compiled using Matlab, based on the calculated results, the fatigue damage was predicted. The effects of various factors, such as cable density, cable length, and pretension and velocity distribution on vortex induced fatigue damage in the cable were studied. The results show that velocity distribution has more effect on the cable fatigue damage than cable length, cable density and pre-tension. Secondly, cable length has also relatively effect on the cable damage fatigue, cable density and pretension has limited in a certain range

7

FDI Inflows, market fragmentation and their impact on industrial environmental efficiency: an empirical study in China

81%

Zhou X., Sun X., Yang Y., Chen Y.

Polish Journal of Environmental Studies

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2020

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tom 29

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nr 4

8

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

81%

Wang W., Niu J., Zhou X., Wang Y.

Polish Journal of Ecology

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2011

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tom 59

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nr 1

Conversion of land from wetland to agricultural management practices can lead to significant changes in nutrient rich topsoil, which may have an impact on microbial community structure in soils. However, little is known about how long-term (ca. 40 years) rice cultivation, one of major agricultural management practices in many regions, influence soil microbial biomass and community structure. Soil samples were collected from a wetland and paddy field in Anhui province in eastern China to examine soil physical and chemical characteristics and associated soil microbial biomass and community composition. Microbial community composition was assessed using phospholipid fatty acid (PLFA) analysis, terminal restriction fragment length polymorphism (T-RFLP) analysis of 16S rRNA genes. Results indicated that soil moisture content, pH, soil organic carbon, total nitrogen and NH4 +-N contents were significantly lower in the paddy field in comparison to the wetland. Total microbial biomass showed a slightly significant decrease in the paddy field, however, there were significant shifts in the composition of the microbial communities based on the PLFA and T-RFLP fingerprintings in the both ecosystems. Signature PLFA analysis revealed that the sum of bacterial PLFAs and the relative proportions of Gram negative bacterial specific PLFAs significantly decreased in the paddy field, nonetheless, the relative numbers of actinobacterial, Gram positive and fungal PLFAs as well as the ratio between the bacterial and fungal PLFAs were not affected by the long-term agricultural management. These results revealed that long-term rice cultivations not only drastically decreased soil nutrients but also leaded to shifts in the soil microbial community structure, which would be helpful to provide a better understanding of wetland conservation and management practices.

9

Protein expression in accessions of Chinese onion with different allelopathic potentials under monocropping and intercropping systems

81%

Yang Y., Wu F., Zhou X.

Acta Physiologiae Plantarum

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2013

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tom 35

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nr 07

Protein expressions of Chinese onion accessions grown under monoculture and intercropped with cucumber were evaluated in pot experiments. Chinese onion accessions used were L04 (with weak allelopathic potential) and L06 (with strong allelopathic potential). Root proteins were separated by two-dimensional electrophoresis and the variable expressed protein spots were identified with MALDI-TOFTOF mass spectrometer. Forty-seven identified proteins were classified into nine functional categories. Compared monocropping and intercropping, 31 identified variable protein spots were classified into energy metabolism (14 %), phenylpropanoid biosynthesis (28 %), organosulfur compounds biosynthesis (25 %), carbohydrate metabolism (10 %), fatty acid hydrogen peroxide metabolism (9 %), protein translation (3 %), other function (3 %), and no assigned function (9 %). Compared Chinese onion accessions of differing allelopathy potentials, 22 identified variable protein spots were classified into energy metabolism (18 %), phenylpropanoid biosynthesis (27 %), organosulfur compounds biosynthesis (23 %), carbohydrate metabolism (9 %), nucleosome component (4 %), other function (14 %), and no assigned function (5 %). The level of variable-expressed proteins involved in phenylpropanoid and organosulfur compounds biosynthesis significantly upregulated in treatments intercropped with cucumber. These results suggested that putative allelochemicals of Chinese onion were mainly produced by phenylpropanoid biosynthesis and organosulfur compounds biosynthesis pathway.

10

Effects of cryopreservation at –80°C on the formulation and pathogenicity of the obligate aphid pathogen Pandora nouryi

81%

Zhou X., Feng M.-G., Huang Z.-H.

Polish Journal of Microbiology

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2014

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tom 63

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nr 2

Cryopreservation at –80°C is an alternative to liquid nitrogen storage for Entomophthorales. However, detailed studies about its effects on fungal pathogenicity and formulation are very limited. In the present study, the obligate aphid pathogen Pandora nouryi was formulated as mycelia grown on millet-gel granules after preservation as primary spores at –80°C for 3–18 months, although its ability to produce infectious conidia gradually diminished. The sporulation capacity of this granular formulation was reduced to 18.5 × 104 conidia/mg after 18 months of storage, which was still higher than that of mycotized aphids. The half-decline time of sporulation capacity was computed as 13.6 months. The infectivity to the green peach aphid Myzus persicae had no significant decline in 12 months. The ability to yield resting spores within host carcasses remained unchanged, and the probability of resting spore formation increased with the conidial concentrations that infect aphids. Therefore, cryopreservation at –80°C exerted a marginal impact on formulation and pathogenicity of P. nouryi and can substitute for costly liquid nitrogen storage in routine laboratory studies. The potential of the formulation in aphid biocontrol can be maintained although there is a risk of losing fungal sporulation ability in long-term preservation.

11

MicroRNA expression profiling in alveolar macrophages of indigenous Chinese Tongcheng pigs infected with PRRSV in vivo

81%

Zhou X., Michal J. J., Jiang Z., Liu B.

Journal of Applied Genetics

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2017

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tom 58

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nr 4

12

miRNA‑223‑3p and let‑7b‑3p as potential blood biomarkers associated with the ischemic penumbra in rats

71%

Li S., Chen L., Zhou X., Li J., Liu J.

Acta Neurobiologiae Experimentalis

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2019

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tom 79

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nr 2

The present study aimed to identify commonalities in the microRNA (miRNA) expression profiles of the brain ischemic penumbra and the blood after hyperacute ischemic stroke and then to address whether the miRNA profile of blood has potential usefulness as a diagnostic biomarker of hyperacute ischemic stroke. Blood was collected from the jugular vein 4 h after permanent middle cerebral artery occlusion (pMCAO). After venous blood was collected, the rats were decapitated immediately, and brain ischemic penumbra samples were collected. Hematoxylin and eosin staining was used to observe the histopathological changes. Penumbra and blood miRNAs were measured by miRNA microarray and real-time polymerase chain reaction (PCR) analysis. MicroRNA profiles differed between hyperacute ischemic stroke and sham-operated rats. The expression of some miRNAs changed by more than 1.5-fold in the penumbra and blood 4 h after pMCAO; among those miRNAs, several were upregulated and several were downregulated. MiR-223-3p was found to be highly expressed in both the penumbra and the blood 4 h after pMCAO, and let-7b-3p was found to have low expression in both the penumbra and the blood 4 h after pMCAO. Moreover, miR-223-3p and let-7b-3p expression in blood and brain ischemic penumbra were positively correlated. The results show that select blood miRNAs may correlate with miRNA changes in the penumbra in a rat model of hyperacute ischemic stroke. Our findings suggest the potential usefulness of blood miR-223-3p and let-7b-3p as noninvasive bio markers for the diagnosis of hyperacute ischemic stroke.

13

M cells are involved in pathogenesis of human contact lens-associated giant papillary conjunctivitis

71%

Zhong X., Liu H., Pu A., Xia X., Zhou X.

Archivum Immunologiae et Therapiae Experimentalis

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2007

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tom 55

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nr 3

14

Impact of four plant species and arbuscular mycorrhizal (AM) fungi on polycyclic aromatic hydrocarbon (PAH) dissipation in spiked soil

61%

Zhou X., Zhou J., Xiang X., Cebron A., Beguiristain T., Leyval C.

Polish Journal of Environmental Studies

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2013

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tom 22

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nr 4

Alfalfa, tall fescue, ryegrass, and celery, some of which were inoculated with the AM fungus Glomus intraradices, were compared for their contributions to phenanthrene (PHE), pyrene (PYR), and dibenzo( a,h)anthracene (DBA) dissipation in spiked soil. A pot experiment was conducted in which PAHs extracted from soil and plant, quantity of PAH degraders, and plant biomass were evaluated. The results showed that biodegradation was the dominant removal mechanism for PAHs from soil while PAH accumulation in the plant tissue was negligible. PAH dissipation varied with the plant species and decreased with the increase of PAH molecular weight. The four plant species displayed a positive effect on PHE dissipation, and alfalfa improved PYR and DBA dissipation. AM fungi significantly increased plant biomass, phosphorus uptake, and PHE removal rate in planted treatments. Plant biomass and PAH degraders showed a weak linear relationship with PAH dissipation, indicating that there might be other important factors influencing PAH dissipation.

15

Improved gene targeting frequency in marine-derived filamentous fungus Aspergillus glaucus by disrupting ligD

61%

Fang Z., Zhang Y., Cai M., Zhang J., Zhang Y., Zhou X.

Journal of Applied Genetics

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2012

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tom 53

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nr 3

Filamentous fungi from the marine environment have shown great potential as cell factories for the production of pharmacologically active metabolites, but extremely low frequency of homologous recombination brings difficulty to further molecular biology studies. To bypass this problem and develop a highly efficient gene targeting system in marine-derived filamentous fungus Aspergillus glaucus, LigD, a homolog of Neurospora crassa Mus-53 which is considered to play a significant role in nonhomologous end joining (NHEJ), was coloned and deleted, and frequency of targeted gene replacement (TGR) increased dramatically from <2 % to 85 % in comparison with that in the wild type, when containing 1000 bp of homologous flanking sequence. Such results strongly indicate that AgLigD is indeed involved in the repair of NHEJ in A. glaucus and functions in this pathway. Furthermore, the AgLigD-defective mutant has no discernible differences with wild type regarding sensitivity to mutagens and UV, growth characteristics and transformation frequency. The AgligD-deficient transformant, as the first NHEJ-defective mutant in the field of marine-derived filamentous fungus, will help in expediting studies of molecular biology of marine-derived microorganisms.

16

Transcriptome analysis reveals differentially expressed genes associated with propamocarb response in cucumber (Cucumis sativus L.) fruit

61%

Wu P., Qin Z., Zhao W., Zhou X., Wu T., Xin M., Guo Q.

Acta Physiologiae Plantarum

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2013

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tom 35

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nr 08

High-throughput tag-sequencing (Tag-seq) from Illumina analysis, which is based on the Solexa Genome Analyzer platform, was applied to analyze the gene expression profiling of propamocarb (PM) treatment and control in cucumber fruit. Approximately 3.6 million complete clean sequence tags at PM treatment or control library were obtained with approximately 0.1 million distinct clean tag sequences. Approximately 41.79–43.15 % of the distinct clean tags were mapped unambiguously to the unigene database, and 32.54–33.46 % of the distinct clean tags were mapped to the cucumber genome database. The profiling analysis of the differentially expressed genes revealed the up-regulation of 546 genes and the downregulation of 185 genes with PM response. Furthermore, the differentially expressed genes mainly linked to pesticide detoxication, response to stress/stimulus, transporter/ signaling, and some important transcription factors. Finally, quantitative real-time polymerase chain reaction (qRT-PCR) and reverse transcription polymerase chain reaction (RT-PCR) using 16 genes independently verified the tag-mapped results. The present study reveals the comprehensive mechanisms of PM response in cucumber fruit.

17

Study on the activity of the signaling pathways regulating hepatocytes from G0 phase into G1 phase during rat liver regeneration

61%

Li M., Zhou X., Mei J., Geng X., Zhou Y., Zhang W., Xu C.

Cellular and Molecular Biology Letters

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2014

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tom 19

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nr 2

Under normal physiological conditions, the majority of hepatocytes are in the functional state (G0 phase). After injury or liver partial hepatectomy (PH), hepatocytes are rapidly activated to divide. To understand the mechanism underlying hepatocyte G0/G1 transition during rat liver regeneration, we used the Rat Genome 230 2.0 Array to determine the expression changes of genes, then searched the GO and NCBI databases for genes associated with the G0/G1 transition, and QIAGEN and KEGG databases for the G0/G1 transition signaling pathways. We used expression profile function (E t ) to calculate the activity level of the known G0/G1 transition signal pathways, and Ingenuity Pathway Analysis 9.0 (IPA) to determine the interactions among these signaling pathways. The results of our study show that the activity of the signaling pathways of HGF, IL-10 mediated by p38MAPK, IL-6 mediated by STAT3, and JAK/STAT mediated by Ras/ERK and STAT3 are significantly increased during the priming phase (2–6 h after PH) of rat liver regeneration. This leads us to conclude that during rat liver regeneration, the HGF, IL-10, IL-6 and JAK/STAT signaling pathways play a major role in promoting hepatocyte G0/G1 transition in the regenerating liver.

18

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Genome size of the diploid hybrid species Hippophae goniocarpa and its parental species, H. rhamnoides ssp. sinensis and H. neurocarpa ssp. neurocarpa (Elaeagnaceae)

61%

Zhou X., Ma J., Wang W., Gong N., Zhang Y., Liu J.

Acta Biologica Cracoviensia. Series Botanica

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2010

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tom 52

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nr 2

19

Al-induced cell wall hydroxyproline-rich glycoprotein accumulation is involved in alleviating Al toxicity in rice

61%

Pan W., Shou J., Zhou X., Zha X., Guo T., Zhu M., Pan J.

Acta Physiologiae Plantarum

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2011

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tom 33

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nr 2

Cell wall components such as pectin and hemicelluloses have been proposed to be involved in aluminum resistance mechanisms in plants. However, whether hydroxyproline-rich glycoproteins (HRGPs), one of the most abundant proteins of the cell walls, are involved in Al resistance mechanisms remains elusive. In this study, two rice cultivars Xiushui 03 (Al resistant) and Xiushui 128 (Al sensitive) significantly differing in Al resistance were identified. In the absence of Al, no significant difference was observed in contents of glycoproteins and hydroxyproline in cell wall fractions of these two cultivars. At the early stage of Al toxicity, glycoproteins and hydroxyproline were significantly induced in these two cultivars, but levels of their accumulation in cell walls were much higher in cv. Xiushui 03 than in cv. Xiushui 128. At the late stage of Al toxicity, their accumulation in cell walls dramatically decreased in cv. Xiushui 128 and, however, still kept a high level in cv. Xiushui 03. The finding that Al-induced changes of glycoproteins and hydroxyproline were completely consistent indicates that Al-induced glycoproteins are HRGPs. Further observation utilizing transmission electron microscope showed that HRGPs were greatly accumulated in cell walls leading to thickening of cell walls in cv. Xiushui 03, however, HRGPs and cell walls greatly decreased in cv. Xiushui 128. These data suggest that Al-induced HRGP accumulation in cell walls is involved in alleviating Al toxicity in rice.

20

Transcriptome profiling of cucumber genome expression in response to long-term low nitrogen stress

61%

Xin M., Wang L., Liu Y., Feng Z., Zhou X., Qin Z.

Acta Physiologiae Plantarum

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2017

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tom 39

|

nr 06

Ograniczanie wyników

Embriogeneza somatyczna soi

Effect of 5 years long cessation of grazing on methane uptake in a semi-arid grassland

Forced motion CFD simulation and load refinement evaluation of floating vertical-axis tidal current turbines

Recent trends and advances in identification and functional characterization of plant miRNAs

Pontigulasia pentangulostoma nov.spec., a new testate amoeba from the Da Jiuhu peatland of the Shennongjia Mountains, China

Effects of various factors on the viv-inducted fatigue damage in the cable of submerged floating tunnel

FDI Inflows, market fragmentation and their impact on industrial environmental efficiency: an empirical study in China

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

Protein expression in accessions of Chinese onion with different allelopathic potentials under monocropping and intercropping systems

Effects of cryopreservation at –80°C on the formulation and pathogenicity of the obligate aphid pathogen Pandora nouryi

MicroRNA expression profiling in alveolar macrophages of indigenous Chinese Tongcheng pigs infected with PRRSV in vivo

miRNA‑223‑3p and let‑7b‑3p as potential blood biomarkers associated with the ischemic penumbra in rats

M cells are involved in pathogenesis of human contact lens-associated giant papillary conjunctivitis

Impact of four plant species and arbuscular mycorrhizal (AM) fungi on polycyclic aromatic hydrocarbon (PAH) dissipation in spiked soil

Improved gene targeting frequency in marine-derived filamentous fungus Aspergillus glaucus by disrupting ligD

Transcriptome analysis reveals differentially expressed genes associated with propamocarb response in cucumber (Cucumis sativus L.) fruit

Study on the activity of the signaling pathways regulating hepatocytes from G0 phase into G1 phase during rat liver regeneration

Genome size of the diploid hybrid species Hippophae goniocarpa and its parental species, H. rhamnoides ssp. sinensis and H. neurocarpa ssp. neurocarpa (Elaeagnaceae)

Al-induced cell wall hydroxyproline-rich glycoprotein accumulation is involved in alleviating Al toxicity in rice

Transcriptome profiling of cucumber genome expression in response to long-term low nitrogen stress