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| 1 | Reform of Carbonate Rock Subsurface by Crustose Lichens and Its Environmental Significance显示文摘Crustose lichens are distributed extensively in karst areas in Southern China. They can be found on the surface of carbonate rocks. Through biophysical and biochemical processes, crustose lichens reform the subsurface of carbonate rocks and in the meanwhile change their physical and chemical properties: (1) the mechanical strength decreases by 17.04° on average (up to 33.2° ); (2) the chemical solution surface area increases from 28.26% to 75.36% (lichen microholes considered only); and (3) the water-holding capacity is greatly improved. Comparative field experiments between biokarst samples underneath crustose lichens and fresh rock samples with the same composition and texture show that the corrosional rate of carbonate rocks of the former is 1.264-1.643 times higher than that of the latter. Crustose lichens are considered as an activator of the surface corrosion of carbonate rocks. | CAO Jianhua and WANG FuxingInstitute of Karst Geology, Chinese Academy of Geological Sciences, Guilin, Guanxi 541004 Xiao Pinfang Liu Xinzhu | 1998 | Acta Geologica Sinica(English Edition)1998，72，1： | 10 |
| 2 | Controlling and adjusting the concentration distribution during solidification process using static magnetic fields显示文摘As concentration distribution changes have important effects on material structures and properties,controlling the concentration distribution is essential to alloy performance.The aim of the present work is to control and adjust the concentration distribution by the static magnetic field.It is found that the magnetic field disperses grain boundary segregation and causes the uniform distribution of concentration.Further,by the three-dimensional computed tomography(3 D-CT) reconstruction,the flow distribution is seen and the effect mechanism of the magnetic field is revealed.The present work may clarify the ambiguous understanding on the effect of the static magnetic field on solidification process. | Pinfang Jiang Jiantao Wang Long Hou Yves Fautrelle Xi Li | 2020 | Journal of Materials Science & Technology2020，47，15： | 3 |
| 3 | Effects of fertigation scheme on N uptake and N use efficiency in cotton显示文摘 | Zhenan Hou Pinfang Li Baoguo Li Jiang Gong Yanna Wang | 2007 | Plant and Soil (-)2007，，1： | 2 |
| 4 | Synthesis of sulfonated poly(phthalazinone ether sulfone)s by direct polymerization显示文摘 | Guyu Xiao Guomin Sun Deyue Yan Pinfang Zhu Ping Tao | 2002 | Polymer2002，，19： | 1 |
| 5 | 河南人群中基质金属蛋白酶3Lys45G1u基因多态性与食管鳞癌遗传易感性的关联分析(英文)显示文摘Objective: The aim of the study was to investigate the association of esophageal squamous cell carcinoma (ESCC) genetic susceptibility with the single nucleotide polymorphism (SNP) rs679620 (-Lys45Glu-) in exon 2 of the mmp3 gene, and the population in high incidence region of Henan (China) was selected for exploring the mechanism by case-control study. Methods: The mmp3 SNP was genotyped by PCR-RFLP analysis in total 605 cases of Henan population, in which there were 227 ESCC cases and 197 controls of An-yang in Henan plus 181 controls of emigrants in Hubei from Xi-chuan of Henan, China. Results: The statistic data showed that G/G and G/A genotype frequencies of SNP rs679620 were significantly different between the controls of emigrants of Xi-chuan in Hubei and controls of An-yang in Henan (P < 0.01) also the ESCC cases of An-yang in Henan (P < 0.01), respectively. Conclusion: This study suggests that the SNP rs679620 (-Lys45Glu-) in exon 2 of the mmp3 gene might be associated with ESCC genetic susceptibility. | Gang Ouyang Pinfang Yao Wenjuan Hu Qjngbo Chen Hong Wang Lidong Wang Jin Li | 2009 | The Chinese-German Journal of Clinical Oncology2009，8，9： | 1 |
| 6 | Effects of fertigation scheme on N uptake and N use efficiency in cotton显示文摘 | Hou Zhen\'an Li Pinfang Li Baoguo | 2007 | Plant and Soil2007，290，12： | 1 |
| 7 | Comparison of the water uptake and swelling between sulfonated poly(phthalazinone ether ketone ketone)s and sulfonated poly(arylene ether ketone ketone)s显示文摘 | Liping Shena Guyu Xiaoa Deyue Yana Guoming Sun Pinfang Zhu Zhu Na | 2005 | Polymer Bulletin2005，54，： | 1 |
| 8 | Effects offertigation scheme on N uptake and N use efficiency incotton显示文摘 | Hou Zhenan Li Pinfang Li Baoguo | 2007 | Plant Soil2007，290，： | 1 |
| 9 | Thermal analysis and miscibility of chitin/polycaprolactone blends显示文摘 | Anle Yang Renjie Wu Pinfang Zhu | 2001 | J Appl Polym Sci2001，81，13： | 1 |
| 10 | Direct infection of SARS-CoV-2 in human iPSC-derived 3D cardiac organoids recapitulates COVID-19 myocarditis显示文摘Dear editor,The pandemic of coronavirus disease-19(COVID-19)has lasted for more than three years,causing lots of extra death and posing a serious threat to public health.This pandemic swept the last global safety island in a matter of months,coinciding with the switch of zero-COVID policy of China.The causative agent,SARS-CoV-2,spreads globally and then lurks in the population with sporadic outbreaks in local areas.Meanwhile,the sequelae of convalescent COVID-19 patients receded slowly.The pantissue tropism of SARS-CoV-2 results in a wide range of symptoms in patients,including cardiovascular disorders.Cardiac complications occur in 20%–44%of hospitalized patients,which is an independent risk factor for COVID-19 mortality(Ma et al.,2022;Patone et al.,2022).Survivors of acute COVID-19 also have a substantial risk of cardiovascular disease burden lasting up to one year(Xie et al.,2022). | Weijie Wang Jinxuan Yang Pinfang Kang Jinsong Bai Xiaoli Feng Liuqi Huang Yiming Zhang Yuechun Wu Bi Tang Hongju Wang JianJie Jiang Minghua Li Bing Zhao Xinglou Yang | 2023 | Virologica Sinica2023，38，6： | 0 |
| 11 | Effects of fertigation scheme on N uptake and N use efficiency in cotton显示文摘While fertigation can increase fertilizer use efficiency, there is an uncertainly as to whether the fertilizer should be introduced at the beginning of the irrigation or at the end, or introduced during irrigation. Our objective was to determine the effect of different fertigation schemes on nitrogen (N) uptake and N use efficiency (NUE) in cotton plants. A pot experiment was conducted under greenhouse conditions in year 2004 and 2005. According to the application timing of nitrogen (N) fertilizer solution and water (W) involved in an irrigation cycle, four nitrogen fertigation schemes [nitrogen applied at the beginning of the irrigation cycle (N-W), nitrogen applied at the end of the irrigation cycle (W-N), nitrogen applied in the middle of the irrigation cycle (W-N-W) and nitrogen applied throughout the irrigation cycle (N&W)] were employed in a completely randomized design with four replications. Cotton was grown in plastic containers with a volume of 84 l, which were filled with a clay loam soil and fertilized with 6.4 g of N per pot as unlabeled and 15N-labeled urea for 2004 and 2005, respectively. Plant total dry matter (DM) and N content in N-W was significantly higher than in N&W in both seasons, but these were not consistent for W-N and W-N-W treatments. In year 2005, a significantly higher nitrogen derived from fertilizer (NDFF) for the whole plant was found in W-N and N-W than that in W-N-W and N&W. Fertigation scheme had a consistent effect on total NUE: N-W had the highest NUE for the whole plant, but this was not significantly different from W-N. Treatments W-N and W-N-W had similar total NUE, and N&W had the lowest total NUE. After harvesting, the total residual fertilizer N in the soil was highest in W-N, lowest in N-W, but this was not significantly different from N&W and W-N-W treatments. Total residual NO3-N in the soil in N&W and W-N treatments was 20.7 and 21.2% higher than that in N W, respectively. The total 15 N recovery was not statistically significant between the four fertigation schemes. In this study, the fertigation scheme N-W (nitrogen applied at the beginning of an irrigation cycle) increased DM accumulation, N uptake and NUE of cotton. This study indicates that Nitrogen application at the beginning of an irrigation cycle has an advantage on N uptake and NUE of cotton. Therefore, NUE could be enhanced by optimizing fertilization schemes with drip irrigation. | Zhenan Hou Pinfang Li Baoguo Li Jiang Gong Yanna Wang | 2008 | 新疆农业科学2008，45，A02： | 0 |
| 12 | Exogenous addition of nitrate nitrogen regulates the uptake and translocation of lead (Pb) by Iris lacteal Pall. var. chinensis (Fisch.) Koidz.显示文摘Since Pb is a non-biodegradable inorganic pollutant and a non-essential metal,its long-term presence in soil poses a great threat to the environment.Iris lactea Pall.var.chinensis(Fisch.)Koidz.,a perennial dense bush herb with high resistance of Pb and wide adaptability,was used in pot experiments to study the effects of exogenous nitrate N(NO_(3)^(–)-N)on the absorption and transportation of Pb and plant growth under different Pb concentrations.Then,the mechanism of NO_(3)^(-)-N affecting Pb and nutrient uptake and transport was explored.The concentration of Pb in the experiment ranged from 0 to 1600 mg/kg,and the added concentration of NO_(3)^(-)-N was 0.0–0.3 g/kg.The results showed that I.lactea was highly tolerant to Pb,and the shoot fraction was more sensitive to varied Pb concentrations in the soil than the root fraction.This protective function became more pronounced under the condition of raised Pb concentration in the soil.When the concentration of Pb in the soil reached 800 mg/kg,the highest Pb content of I.lactea was found under the condition of 0.1 g/kg of NO–3-N addition.When Pb concentration in the soil increased to 1600 mg/kg,the increase in NO_(3)^(-)-N addition promoted Pb uptake by the root.To ensure the well growth of I.lactea and the effect of remediation of Pb-contaminated soil,the recommended concentration of NO–3-N in the soil is 0.1 g/kg.This result provides a theoretical basis for exogenous N regulation of phytoremediation of Pb-contaminated soil. | SUN Mengjie GUO Shiwen XIONG Chunlian LI Pinfang | 2023 | Journal of Arid Land2023，15，2： | 0 |
| 13 | Water adaptive traits of deep-rooted C_3 halophyte(Karelinia caspica(Pall.) Less.) and shallow-rooted C_4 halophyte(Atriplex tatarica L.) in an arid region,Northwest China显示文摘This paper focused on the water relations of two halophytes differing in photosynthetic pathway,phenotype,and life cycle:Karelinia caspica(Pall.) Less.(C3,deep-rooted perennial Asteraceae grass) and Atriplex tatarica L.(C4,shallow-rooted annual Chenopodiaceae grass).Gas exchange,leaf water potential,and growth characteristics were investigated in two growing seasons in an arid area of Xinjiang to explore the physiological adaptability of the two halophytes.Both K.caspica and A.tatarica showed midday depression of transpiration,indicating that they were strong xerophytes and weak midday depression types.The roots of A.tatarica were concentrated mainly in the 0-60 cm soil layer,and the leaf water potential(ΨL) increased sharply in the 0-20 cm layer due to high soil water content,suggesting that the upper soil was the main water source.On the other hand,K.caspica had a rooting depth of about 1.5 m and a larger root/shoot ratio,which confirmed that this species uptakes water mainly from deeper soil layer.Although A.tatarica had lower transpiration water consumption,higher water use efficiency(WUE),and less water demand at the same leaf water potential,it showed larger water stress impact than K.caspica,indicating that the growth of A.tatarica was restricted more than that of K.caspica when there was no rainfall recharge.As a shallow-rooted C4 species,A.tatarica displayed lower stomatal conductance,which could to some extent reduce transpiration water loss and maintain leaf water potential steadily.In contrast,the deep-rooted C3 species K.caspica had a larger root/shoot ratio that was in favor of exploiting groundwater.We concluded that C3 species(K.caspica) tapes water and C4 species(A.tatarica) reduces water loss to survive in the arid and saline conditions.The results provided a case for the phenotype theory of Schwinning and Ehleringer on halophytic plants. | Yuan FAN PinFang LI ZhenAn HOU TuSheng REN ChunLian XIONG Biao ZHANG | 2012 | Journal of Arid Land2012，4，4： | 0 |
| 14 | K^(+)and Na^(+)fluxes in roots of two Chinese Iris populations显示文摘Maintenance of ion homeostasis,particularly the regulation of K^(+)and Na^(+)uptake,is important for all plants to adapt to salinity.Observations on ionic response to salinity and net fluxes of K^(+),Na^(+)in the root exhibited by plants during salt stress have highlighted the need for further investigation.The objectives of this study were to compare salt adaptation of two Chinese Iris(Iris lactea Pall.var.chinensis(Fisch.)Koidz.)populations,and to improve understanding of adaptation to salinity exhibited by plants.Plants used in this study were grown from seeds collected in the Xinjiang Uygur Autonomous Region(Xj)and Beijing Municipality(Bj),China.Hydroponicallygrown seedlings of the two populations were supplied with nutrient solutions containing 0.1(control)and 140 mmol·L^(–1) NaCl.After 12 days,plants were harvested for determination of relative growth rate and K^(+),Na^(+)concentrations.Net fluxes of K^(+),Na^(+)from the apex and along the root axis to 10.8 mm were measured using noninvasive micro-test technique.With 140 mmol·L^(–1) NaCl treatment,shoots for population Xj had larger relative growth rate and higher K^(+)concentration than shoots for population Bj.However,the Na^(+)concentrations in both shoots and roots were lower for Xj than those for Bj.There was a lower net efflux of K^(+)found in population Xj than by Bj in the mature zone(approximately 2.4^(–1)0.8 mm from root tip).However,no difference in the efflux of Na^(+)between the populations was obtained.Population Xj of I.lactea continued to grow normally under NaCl stress,and maintained a higher K^(+)/Na^(+)ratio in the shoots.These traits,which were associated with lower K^(+)leakage,help population Xj adapt to saline environments. | Pinfang LI Biao ZHANG | 2014 | Frontiers of Agricultural Science and Engineering2014，1，2： | 0 |
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