TY  - JOUR
A1  - Wang, Wei-Hong
A1  - Köhler, Barbara
A1  - Cao, Feng-Qiu
A1  - Liu, Guo-Wei
A1  - Gong, Yuan-Yong
A1  - Sheng, Song
A1  - Song, Qi-Chao
A1  - Cheng, Xiao-Yuan
A1  - Garnett, Trevor
A1  - Okamoto, Mamoru
A1  - Qin, Rui
A1  - Müller-Röber, Bernd
A1  - Tester, Mark
A1  - Liu, Lai-Hua
T1  - Rice DUR3 mediates high-affinity urea transport and plays an effective role in improvement of urea acquisition and utilization when expressed in Arabidopsis
JF  - New phytologist : international journal of plant science
N2  - Despite the great agricultural and ecological importance of efficient use of urea-containing nitrogen fertilizers by crops, molecular and physiological identities of urea transport in higher plants have been investigated only in Arabidopsis. We performed short-time urea-influx assays which have identified a low-affinity and high-affinity (Km of 7.55 mu M) transport system for urea-uptake by rice roots (Oryza sativa). A high-affinity urea transporter OsDUR3 from rice was functionally characterized here for the first time among crops. OsDUR3 encodes an integral membrane-protein with 721 amino acid residues and 15 predicted transmembrane domains. Heterologous expression demonstrated that OsDUR3 restored yeast dur3-mutant growth on urea and facilitated urea import with a Km of c. 10 mu M in Xenopus oocytes. Quantitative reverse-transcription polymerase chain reaction (qPCR) analysis revealed upregulation of OsDUR3 in rice roots under nitrogen-deficiency and urea-resupply after nitrogen-starvation. Importantly, overexpression of OsDUR3 complemented the Arabidopsis atdur3-1 mutant, improving growth on low urea and increasing root urea-uptake markedly. Together with its plasma membrane localization detected by green fluorescent protein (GFP)-tagging and with findings that disruption of OsDUR3 by T-DNA reduces rice growth on urea and urea uptake, we suggest that OsDUR3 is an active urea transporter that plays a significant role in effective urea acquisition and utilisation in rice.
KW  - high-affinity transporter
KW  - leaf senescence
KW  - nitrogen remobilization
KW  - OsDUR3
KW  - overexpression
KW  - rice plant
KW  - urea transport and utilization
Y1  - 2012
U6  - https://doi.org/10.1111/j.1469-8137.2011.03929.x
SN  - 0028-646X
VL  - 193
IS  - 2
SP  - 432
EP  - 444
PB  - Wiley-Blackwell
CY  - Malden
ER  - 
TY  - BOOK
A1  - Hua, Chen
A1  - Jun-Feng, Li
A1  - Wei-An, Liu
T1  - Behavior of the Solution to a Chemotaxis Model with Reproduction term
T3  - Preprint / Universität Potsdam, Institut für Mathematik, Arbeitsgruppe Partiell
Y1  - 2008
SN  - 1437-739X
PB  - Univ.
CY  - Potsdam
ER  - 
TY  - JOUR
A1  - Pan, Jinger
A1  - Kong, Yan
A1  - Song, Shuang
A1  - McBride, Catherine
A1  - Liu, Hongyun
A1  - Shu, Hua
T1  - Socioeconomic status, parent report of children’s early language skills, and late literacy skills
BT  - a long term follow-up study among Chinese children
JF  - Reading and writing : an interdisciplinary journal
N2  - Previous research on the longitudinal prediction of literacy development has focused mainly on the relationship between early cognitive/language skills and late literacy skills. The present study aimed to test the reliability of a number of measures reported by parents as compared to measuring cognitive and language skills in predicting subsequent reading achievement. Two hundred sixty-two Chinese children were administered four cognitive and language skills over three years at the preliterate stage. Additional information on children’s family socioeconomic status (SES), children’s early language skills, familial reading performance and habits, and familial handedness based on the observations of parents was collected. Performance on these variables in relation to subsequent literacy skills at 11 years of age was examined. SES and children’s early language skills significantly predicted subsequent literacy skills. Even with a number of cognitive and language skills statistically controlled, parental reports of children’s early language skills still contributed to reading comprehension. Poor readers defined at 11 years of age had lagged behind in early language skills, as well as family reading performance and habits, as compared to typically developing readers. These findings suggest that SES and parental estimates of children’s early language skills are useful for predicting children’s subsequent reading achievement.
KW  - SES
KW  - Parent questionnaire
KW  - Early language skills
KW  - Familial risk
KW  - Chinese reading
Y1  - 2017
U6  - https://doi.org/10.1007/s11145-016-9682-4
SN  - 0922-4777
SN  - 1573-0905
VL  - 30
SP  - 401
EP  - 416
PB  - Springer
CY  - Dordrecht
ER  - 
TY  - GEN
A1  - Yang, Lei
A1  - Tang, Renjie
A1  - Zhu, Jinqi
A1  - Liu, Hua
A1  - Mueller-Roeber, Bernd
A1  - Xia, Huijun
A1  - Zhang, Hongxia
T1  - Enhancement of stress tolerance in transgenic tobacco plants constitutively expressing AtIpk2β, an inositol polyphosphate 6-/3-kinase from Arabidopsis thaliana
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - Inositol phosphates (IPs) and their turnover products have been implicated to play important roles in stress signaling in eukaryotic cells. In higher plants genes encoding inositol polyphosphate kinases have been identified previously, but their physiological functions have not been fully resolved. Here we expressed Arabidopsis inositol polyphosphate 6-/3-kinase (AtIpk2 beta) in two heterologous systems, i.e. the yeast Saccharomyces cerevisiae and in tobacco (Nicotiana tabacum), and tested the effect on abiotic stress tolerance. Expression of AtIpk2 beta rescued the salt-, osmotic- and temperature-sensitive growth defects of a yeast mutant strain (arg82 Delta) that lacks inositol polyphosphate multikinase activity encoded by the ARG82/IPK2 gene. Transgenic tobacco plants constitutively expressing AtIpk2 beta under the control of the Cauliflower Mosaic Virus 35S promoter were generated and found to exhibit improved tolerance to diverse abiotic stresses when compared to wild type plants. Expression patterns of various stress responsive genes were enhanced, and the activities of anti-oxidative enzymes were elevated in transgenic plants, suggesting a possible involvement of AtIpk2 beta in plant stress responses.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 954 
KW  - arabidopsis thaliana
KW  - AtIpk2 beta
KW  - inositol phosphate
KW  - IP3
KW  - stress tolerance
KW  - transgenic tobacco
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-431225
SN  - 1866-8372
IS  - 954
ER  - 
TY  - INPR
A1  - Chen, Hua
A1  - Li, Jun-Feng
A1  - Liu, Wei-An
T1  - Behavior of the solution to a chemotaxis model with reproduction term
N2  - Contents: 1 Introduction 2 Global existence and blow-up or quenching of the solution 3 Detailed asymptotical behavior of the solution
T3  - Preprint - (2008) 02 
Y1  - 2008
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-30304
ER  - 
TY  - BOOK
A1  - Yin, Yang
A1  - Hua, Chen
A1  - Weian, Liu
T1  - On solutions of the chemotaxis equations
T3  - Preprint / Universität Potsdam, Institut für Mathematik
Y1  - 1998
VL  - 1998, 06
PB  - Univ.
CY  - Potsdam
ER  - 
TY  - JOUR
A1  - Pan, Jinger
A1  - Song, Shuang
A1  - Su, Mengmeng
A1  - McBride, Catherine
A1  - Liu, Hongyun
A1  - Zhang, Yuping
A1  - Li, Hong
A1  - Shu, Hua
T1  - On the relationship between phonological awareness, morphological awareness and Chinese literacy skills: evidence from an 8-year longitudinal study
JF  - Developmental science.
Y1  - 2016
U6  - https://doi.org/10.1111/desc.12356
SN  - 1363-755X
SN  - 1467-7687
VL  - 19
SP  - 982
EP  - 991
PB  - Wiley-Blackwell
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Tao, Lumi
A1  - Liu, Yuchuan
A1  - Wu, Dan
A1  - Wei, Qiao-Hua
A1  - Taubert, Andreas
A1  - Xie, Zailai
T1  - Luminescent Ionogels with Excellent Transparency, High Mechanical Strength, and High Conductivity
JF  - Nanomaterials
N2  - The paper describes a new kind of ionogel with both good mechanical strength and high conductivity synthesized by confining the ionic liquid (IL) 1-butyl-3-methylimidazolium bis(trifluoromethane sulfonyl)imide ([Bmim][NTf₂]) within an organic–inorganic hybrid host. The organic–inorganic host network was synthesized by the reaction of methyltrimethoxysilane (MTMS), tetraethoxysilane (TEOS), and methyl methacrylate (MMA) in the presence of a coupling agent, offering the good mechanical strength and rapid shape recovery of the final products. The silane coupling agent 3-methacryloxypropyltrimethoxysilane (KH-570) plays an important role in improving the mechanical strength of the inorganic–organic hybrid, because it covalently connected the organic component MMA and the inorganic component SiO₂. Both the thermal stability and mechanical strength of the ionogel significantly increased by the addition of IL. The immobilization of [Bmim][NTf₂] within the ionogel provided the final ionogel with an ionic conductivity as high as ca. 0.04 S cm⁻¹ at 50 °C. Moreover, the hybrid ionogel can be modified with organosilica-modified carbon dots within the network to yield a transparent and flexible ionogel with strong excitation-dependent emission between 400 and 800 nm. The approach is, therefore, a blueprint for the construction of next-generation multifunctional ionogels.
KW  - ionic liquid
KW  - ionogel
KW  - carbon dots
KW  - organic–inorganic hybrid
KW  - luminescence
KW  - mechanical strength
Y1  - 2020
U6  - https://doi.org/10.3390/nano10122521
SN  - 2079-4991
VL  - 10
IS  - 12
PB  - MDPI
CY  - Basel
ER  - 
TY  - GEN
A1  - Tao, Lumi
A1  - Liu, Yuchuan
A1  - Wu, Dan
A1  - Wei, Qiao-Hua
A1  - Taubert, Andreas
A1  - Xie, Zailai
T1  - Luminescent Ionogels with Excellent Transparency, High Mechanical Strength, and High Conductivity
T2  - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe
N2  - The paper describes a new kind of ionogel with both good mechanical strength and high conductivity synthesized by confining the ionic liquid (IL) 1-butyl-3-methylimidazolium bis(trifluoromethane sulfonyl)imide ([Bmim][NTf₂]) within an organic–inorganic hybrid host. The organic–inorganic host network was synthesized by the reaction of methyltrimethoxysilane (MTMS), tetraethoxysilane (TEOS), and methyl methacrylate (MMA) in the presence of a coupling agent, offering the good mechanical strength and rapid shape recovery of the final products. The silane coupling agent 3-methacryloxypropyltrimethoxysilane (KH-570) plays an important role in improving the mechanical strength of the inorganic–organic hybrid, because it covalently connected the organic component MMA and the inorganic component SiO₂. Both the thermal stability and mechanical strength of the ionogel significantly increased by the addition of IL. The immobilization of [Bmim][NTf₂] within the ionogel provided the final ionogel with an ionic conductivity as high as ca. 0.04 S cm⁻¹ at 50 °C. Moreover, the hybrid ionogel can be modified with organosilica-modified carbon dots within the network to yield a transparent and flexible ionogel with strong excitation-dependent emission between 400 and 800 nm. The approach is, therefore, a blueprint for the construction of next-generation multifunctional ionogels.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1058 
KW  - ionic liquid
KW  - ionogel
KW  - carbon dots
KW  - organic–inorganic hybrid
KW  - luminescence
KW  - mechanical strength
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-487334
SN  - 1866-8372
IS  - 1058
ER  -