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1

Suppression of α-l-arabinofuranosidase in the endosperm and atypical germination of lettuce seeds induced by sodium dichloroisocyanurate

100%
Liu C., Li L., Chen B., Wang X.
Acta Physiologiae Plantarum
|
2015
|
tom 37
|
nr 02
Endosperm cap (CAP) weakening and radicle (RAD) elongation growth are prerequisites for the completion of lettuce seed germination. Lettuce CAP and RAD cell walls contain a large amount of L-arabinofuranose, which may exist in the form of arabinan or L-arabinofuranose- rich polysaccharides. The aim of the present study was to investigate the relationship between a-L-arabinofuranosidase, an enzyme degrading L-arabinofuranose-rich polysaccharides, and CAP weakening and RAD elongation growth. It was shown that the enzyme activity and the transcript abundance of two lettuce α-L-arabinofuranosidase genes, LsARAf2 and LsARAf7, increased in the CAP and RAD prior to the completion of seed germination during imbibition in water. Sodium dichloroisocyanurate, a chemical inducing atypical germination (RAD elongation without endosperm rupture) in lettuce seeds, significantly decreased the enzyme activity and the transcript abundance of LsARAf7 and LsARAf2 in the CAP. It is concluded that the expression of α-L-arabinofuranosidase is necessary for CAP weakening and the suppression of this enzyme in the CAP is at least partly responsible for atypical germination in lettuce.
2
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Grain-size characteristics and net transport patterns of surficial sediments in the Zhejiang nearshore area, East China Sea

100%
Liang J., Liu J., Xu G., Chen B.
Oceanologia
|
2020
|
tom 62
|
nr 1
3

Effects of potassium deficiency on the enzymatic changes in developing cotton fibers

88%
Hu W., Yang J., Wang S., Chen B., Zhou Z.
Acta Physiologiae Plantarum
|
2018
|
tom 40
|
nr 05
4

Genotypic differences in some physiological characteristics during cotton fiber thickening and its influence on fiber strength

76%
Zhang W., Shu H., Hu H., Chen B., Wang Y., Zhou Z.
Acta Physiologiae Plantarum
|
2009
|
tom 31
|
nr 5
Cotton (Gossypium L.) fiber strength is linked with many complex physiological and biochemical processes in the stage of secondary fiber cell wall thickening. With the aim of further exploiting of the relationship between fiber strength and genotypic differences in physiological characteristics, the experiment was implemented in Nanjing, China (in the lower reach of Yangtze River Valley in China) at the stage of cotton fiber thickening stage in 2004–2005. The result showed that the higher strength fiber (genotype Kemian 1) always had higher activities of sucrose synthetase (SuSy) and β-1,3-glucan synthase, and more sucrose and callose existed and transformed for cellulose synthesis than these of the other genotypes during the fiber secondary wall thickening period These resulted in a longer and more gently cellulose accumulation and wider range and longer period of fiber strength enhancing. Interestingly, the opposite effects were observed in lower strength fiber of Dexiamian 1 and intermediary indices were found in NuCOTN 33B with middle strength fiber. Taken together, above results suggested the variations in the transformation of sucrose and callose contents, and the dynamics of sucrose synthase and β-1,3-glucan synthase activities, might be one of the physiological reasons causing the differences in the speed of cellulose accumulation and fiber strength formation. Additionally, other results showed: (1) the occurrence of callose content peak might be an important sign of the onset of the secondary wall thickening in the fiber cell; (2) the duration and the maximum growth rate of cellulose rapid accumulation contribute more to fiber strength development than other indices of cellulose rapid accumulation.
5

A comparison of Su and Lu modeling of hydro-thermal coupling model using field temperature records

76%
Ren J., Zhang W., Chen B., Men L., Ma C., Gan L.
Polish Journal of Environmental Studies
|
2021
|
tom 30
|
nr 1
6

Comparison of the variation of soil respiration in carbon cycle in temperate and subtropical forests and the relationship with climatic variables

76%
Shi Z., Zhang Y., Chen B., Zhou W., Du E., Fang J.
Polish Journal of Ecology
|
2015
|
tom 63
|
nr 3
Forest soil respiration (SR) has become a vital issue in global change ecology because of its critical role in global warming processes. However, SR remains the least understood component of the terrestrial carbon cycle because of its high spatial-temporal variability, inaccessibility of the soil substrate, and the high cost of measurement equipment. This study investigated the spatial and temporal variations of SR in six temperate and subtropical forest sites in eastern China. Seasonal variations of SR, the relationship between SR and soil temperature (ST) and volumetric water content (SW) were analyzed. Mean monthly SR varied seasonally and peaked in summer. SR varied temporally with ST (R² = 0.43∼0.79) in different sites and varied spatially with latitude (R² = 0.68). The responses of SR to the changes of SW varied across different sites and forest types. Their relationships were simulated by piecewise functions in the north three sites. The modules of ST and SW showed that ST is the dominant environmental factor in regulating seasonal dynamics of SR. This study is the first to examine the temporal and spatial variations of SR using a consistent method in situ in temperate and subtropical forests in eastern China. The results provide a scientific basis for accurately assessing future soil CO₂ efflux as a result of climate changes, and aid predictions of the changes of forest SR.
7

Cloning and expression of Perilla frutescens FAD2 gene and polymorphism analysis among cultivars

76%
Xue Y., Zhang X., Wang R., Chen B., Jiang J., Win A. N., Chai Y.
Acta Physiologiae Plantarum
|
2017
|
tom 39
|
nr 03
8

The identification of human aldo-keto reductase AKR7A2 as a novel cytoglobinbinding partner

76%
Li X., Zou S., Li Z., Cai G., Chen B., Wang P., Dong W.
Cellular and Molecular Biology Letters
|
2016
|
tom 21
9

Pollution remediation by urban forests: PM2.5 reduction in Beijing, China

76%
Chen B., Lu S., Zhao Y., Li S., Yang X., Wang B., Zhang H.
Polish Journal of Environmental Studies
|
2016
|
tom 25
|
nr 5
We based our research on real-time monitoring data for PM2.5 at the Beijing Municipal Environmental Protection Monitoring Center of Haidian Beijing Botanical Garden (a vegetated area), and at Haidian Wanliu (a non-vegetated area). By combining these two data points with the PM2.5 and meteorological data from a separate monitoring station in Beijing Botanical Garden’s forest interior, we analyzed the daily fluctuation, regional variation, and foliar adsorption characteristics of PM2.5 in varied environments (Feb.-Dec. 2013 and Jan.-Feb. 2014). Our results show a double peak and valley pattern of PM2.5 daily variation and daytime values greater than nighttime measurements. Average annual PM2.5 concentration values at different monitoring stations were Haidian Wanliu (100.61±26.49 μg·m-3), greater than at the Beijing Botanical Garden forest interior monitoring station (89.72±23.49 μg·m-3), and both greater than at Haidian Beijing Botanical Garden (77.72±23.37 μg·m-3). The maximum PM2.5 concentrations during 12 months were all in Haidian Wanliu (non-vegetated area), while the minimums were all in Haidian Beijing Botanical Garden (vegetated), Haidian Wanliu being 83.33% of the time higher in PM2.5 concentration than Beijing Botanical Garden forest interior. Possibly because of the trees, PM2.5 concentrations in the forest area were lower than that in the non-vegetated area. We find an average PM2.5 adsorption capacity per unit leaf area of 0.048±0.031 μg·cm-2 - 0.645±0.034 μg·cm-2 in May, and 0.058±0.006 μg·cm-2 - 0.887±0.014 μg·cm-2 in June for the 10 tree species included in our study. Of these 10, incense Cedrus deodara evidences the greatest adsorption and Sophora japonica shows the minimum. As a whole, conifers adsorb at 1.32 times the rate of broadleaf tree species, according to our data. PM2.5 adsorption capacity was greater in June (0.294±0.227 μg·cm-2) than in May (0.215±0.184 μg·cm-2). Daily and annual variation in different regions falls into a pattern where Haidian Wanliu pollution is greater than Beijing Botanical Garden forest interior monitoring station, and both are greater than Haidian Beijing Botanical Garden, which confirms the forest ecosystem’s involvement. It appears that the forest has many functions, including atmospheric purification by adsorption of PM2.5 and other particulates as evidenced by better air quality in forest areas than in non-vegetated sites. Furthermore, forest clearings show better air quality than the forest interior.
10

Habitat suitability evaluation of the Chinese horseshoe bat (R. sinicus) in the Wuling Mountain area based on MAXENT modelling

76%
Luo X., Liang L., Liu Z., Wang J., Huang T., Geng D., Chen B.
Polish Journal of Environmental Studies
|
2020
|
tom 29
|
nr 2
11

The mechanism of color fading in sunburned apple peel

76%
Liu Y., Chen N., Zuo C., Wu Y., Che F., Chen B.
Acta Physiologiae Plantarum
|
2019
|
tom 41
|
nr 01
12

Proteomic changes in response to low-light stress during cotton fiber elongation

64%
Hu W., Zheng M., Wang S., Meng Y., Wang Y., Chen B., Snider J. N., Zhou Z.
Acta Physiologiae Plantarum
|
2017
|
tom 39
|
nr 09
13

IgG silencing induces apoptosis andsuppresses proliferation, migration and invasion in LNCaP prostate cancer cell

64%
Xu Y., Chen B., Zheng S., Wen Y., Xu A., Xu K., Li B., Liu C.
Cellular and Molecular Biology Letters
|
2016
|
tom 21
14

Plant density influences fiber sucrose metabolism in relation to cotton fiber quality

64%
Meng Y., Lv F., Zhao W., Chen J., Zhu L., Wang M., Chen B., Zhou Z.
Acta Physiologiae Plantarum
|
2016
|
tom 38
|
nr 05
15

Two Gln187 mutants of human soluble APRIL inhibit proliferation of lung carcinoma A549 cells

64%
Dai S., Zheng Y., Chen B., Gao M., Zhang Y., Zhang L., Gong W., He F.
Acta Biochimica Polonica
|
2009
|
tom 56
|
nr 4
703-710
 Soluble APRIL (sAPRIL), the active form of a proliferation-inducing ligand (APRIL), is implicated in the proliferation of tumor cells. Suppressing APRIL function has been considered as a potential strategy for the therapy of APRIL-associated tumors. In the present study, we generated human sAPRIL and its two mutants, Gln187-D-sAPRIL (Gln187 deleted) and Gly187-sAPRIL (Gln187 replaced by Gly). In vitro experiments showed that the two mutants had similar specific binding capacity to lung carcinoma A549 cells compared to the wild-type sAPRIL, and both, especially Gly187-sAPRIL, exhibited significant antagonistic effect on sAPRIL-induced tumor cell proliferation in a dose-dependent manner, which might be predominantly mediated by blocking sAPRIL-induced MEK and ERK phosphorylation but not p38MAPK or JNK signaling. In vivo experiments with nude mice bearing A549 cell-derived xenograft tumor showed that only the Gly187-sAPRIL mutant could significantly suppress the tumor growth. These results suggest that Gln187 may be a crucial amino acid in APRIL-mediated tumor cell proliferation via the MEK-ERK signaling pathway and that the sAPRIL mutants may serve as novel potential antagonists of APRIL for the therapy of APRIL-associated cancers.
16

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

64%
Xue Y., Yin N., Chen B., Liao F., Win A. N., Jiang J., Wang R., Jin X., Lin N., Chai Y.
Acta Physiologiae Plantarum
|
2017
|
tom 39
|
nr 04
17

Gut microbial compositions in four age groups of Tibetan minipigs

64%
Jiang X., Chen B., Gu D., Rong Z., Su X., Yue M., Zhou H., Gu W. W.
Polish Journal of Microbiology
|
2018
|
tom 67
|
nr 3
In this study, the gut microbiota was characterized in four age strata of Tibetan minipigs. Results indicated that the fecal bacteria of 7-, 28-, 56-, and 180-day-old minipigs did not significantly differ in terms of phylogenetic diversity (i.e., PD whole tree) or the Shannon index (both, p>0.05). Findings of a principal coordinate analysis demonstrated that fecal bacteria of 180-day-old minipigs were discernable from those of the other three age groups. From ages seven to 56 days, the abundance of Bacteroidetes or Firmicutes appeared to vary. Regarding genera, the populations of Bacteroides and Akkermansia decreased with increasing age.
18

Effects of different planting dates and low light on cotton fibre length formation

64%
Chen J., Lv F., Liu J., Ma Y., Wang Y., Chen B., Meng Y., Zhou Z.
Acta Physiologiae Plantarum
|
2014
|
tom 36
|
nr 10
Declining temperature and low light often appear together to affect cotton (Gossypium hirsutum L.) growth and development. To investigate the interaction on fibre elongation, two cultivars were grown in fields in 2010 and 2011 and in pots in 2011 under three shading levels for three planting dates, and the differences of environmental conditions between different planting dates were primarily on temperature. Fibre length in the late planting date 25 May was the longest instead of the normal planting date. Late planting prolonged fibre elongation period and the effect of late planting on fibre length formation was greater than low light. In the normal planting date, shading increased fibre length through delaying the peak of β-1,3-glucanase gene expression and bringing the peak of β-1,3-glucan synthase gene expression forward, leading to a longer duration of plasmodesmata(PD) closure to increase fibre length, instead of changing sucrose contents or relate enzyme activities. However, in the late planting dates, the difference of the duration of PD closure between shading treatments was not obvious, but low light had a negative impact on sucrose contents, sucrose synthase (SuSy) and vacuolar invertase(VIN) activities during fibre rapid elongation period, leading to the decline of fibre length. Due to late planting and low light, the decreased extent of fibre length of Sumian 15 was larger than Kemian 1. Under the combined condition, Sumian 15 had a shorter gene expression of Expansin, and more sensitive sucrose content, VIN and SuSy activity during fibre rapid elongation period. This resulted in the length formation of Sumian 15 which was more sensitive than Kemian 1, when the cotton suffered the combined effects.
19

Photosynthetic characteristics of the subtending leaf and the relationships with lint yield and fiber quality in the late-planted cotton

64%
Liu J., Meng Y., Chen B., Zhou Z., Ma Y., Lv F., Chen J., Wang Y.
Acta Physiologiae Plantarum
|
2015
|
tom 37
|
nr 04
To investigate the photosynthetic characteristics in the subtending leaf of cotton (Gossypium hirsutum L.) boll (LSCB), and their relationships with lint yield and fiber quality under cool temperature due to late planting, field experiments during 2009 to 2011 were conducted using two different cool temperature-tolerant cultivars, Kemian 1 (temperature-tolerate) and Sumian 15 (temperature- sensitive), at three planting date (25 April, 25 May and 10 June) in Nanjing (118º50'E, 4 32º02'N), China. First, the chlorophyll components in LSCB decreased with days post-anthesis, as well as soluble sugar content, amino acid content and C/N ratio. In addition, Pn, ΦPS II and Fv/Fm significantly decreased, indicating that Pn depression in LSCB was due to non-stomata closure. Second, under cool temperature due to late planting (from 25 April to 25 May and/or 10 June), Pn depression was due to stomata closure. Compared to Sumian 15, Kemian 1 demonstrated superior photosynthetic capacity. Furthermore, under cool temperature, lint biomass and seed biomass significantly decreased in parallel with the lint distribution rate, seed distribution rate and lint/seed ratio, whereas carpel distribution rate increased. These changes under cool temperature led to low lint yield and fiber strength. According to CVs and variance among three planting dates, Sumian 15 was more sensitive to cool temperature than Kemian 1.
20

Nitrogen use-inefficient oilseed rape genotypes exhibit stronger growth potency during the vegetative growth stage

64%
Guo X., He H., An R., Zhang Y., Yang R., Cao L., Wu X., Chen B., Tian H., Gao Y.
Acta Physiologiae Plantarum
|
2019
|
tom 41
|
nr 10
There is significant genetic diversity within a species in terms of nitrogen utilization efficiency (NUtE), and genotypes with higher NUtE can help reduce nitrogen (N) fertilization rates and therefore mitigate ecological problems. Determining various characteristic differences in the NUtE of crops is helpful for dissecting the mechanisms of N use efficiency within crop species. In this study, a pot experiment, as well as a hydroponic experiment, was conducted to investigate the differences in oilseed rape biomass, N nutrition traits, N metabolism enzyme activity, root exudates and root RNA expression levels at the vegetative stage between the high and low NUtE genotypes. NUtE was negatively correlated with leaf SPAD values (− 0.341**), N accumulation (− 0.362*) and total biomass (− 0.395**), while there was no significant correlation between NUtE and N content (− 0.150 ns). The root biomass; primary root length and root activity; root N content and accumulation; transpiration rate, and stomatal conductance; root nitrate reductase, glutamine synthetase, and glutamate synthetase activity; the number of alkanes; expression levels of BnNRT1.1 and BnNRT2.1 of the low NUtE genotypes were higher than those of the high NUtE ones. It was concluded that during the vegetative growth stage, compared with the high NUtE oilseed genotypes, low NUtE oilseed genotypes demonstrate higher physiological activity or stronger growth potency at the vegetative growth stage.
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