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Bingru huang

Jan Bergstrand, Qingyun Liu, Bingru Huang, Xingyun Peng, Christian Würth, Ute Resch-Genger, Qiuqiang Zhan, Jerker Widengren, Hans Ågren, Haichun Liu
In this study, we systematically investigate the decay characteristics of upconversion luminescence (UCL) under anti-Stokes excitation through numerical simulations based on rate-equation models. We find that a UCL decay profile generally involves contributions from the sensitizer's excited-state lifetime, energy transfer and cross-relaxation processes. It should thus be regarded as the overall temporal response of the whole upconversion system to the excitation function rather than the intrinsic lifetime of the luminescence emitting state...
March 6, 2019: Nanoscale
Xingyun Peng, Bingru Huang, Rui Pu, Haichun Liu, Tao Zhang, Jerker Widengren, Qiuqiang Zhan, Hans Ågren
Multi-photon upconversion super-resolution microscopy is a recently proposed imaging modality, based on lanthanide-doped nanocrystals, which can emit visible emission upon low-intensity near-infrared excitation. This imaging modality exhibits many advantages, including increased imaging depth, high signal-to-noise ratio, low phototoxicity, and high photostability. However, two factors seriously restrict its scanning speed, sometimes even to an intolerable degree; the long lanthanide emission lifetime and the low brightness...
January 23, 2019: Nanoscale
Bingru Huang, Jan Bergstrand, Sai Duan, Qiuqiang Zhan, Jerker Widengren, Hans Ågren, Haichun Liu
No abstract text is available yet for this article.
November 27, 2018: ACS Nano
Aimin Lv, Liantai Su, Xingchen Liu, Qiang Xing, Bingru Huang, Yuan An, Peng Zhou
BACKGROUND: Dehydrins play positive roles in regulating plant abiotic stress responses. The objective of this study was to characterize two dehydrin genes, CdDHN4-L and CdDHN4-S, generated by alternative splicing of CdDHN4 in bermudagrass. RESULTS: Overexpression of CdDHN4-L with φ-segment and CdDHN4-S lacking of φ-segment in Arabidopsis significantly increased tolerance against abiotic stresses. The growth phenotype of Arabidopsis exposed to NaCl at 100 mM was better in plants overexpressing CdDHN4-L than those overexpressing CdDHN4-S, as well as better in E...
November 26, 2018: BMC Plant Biology
Bingru Huang, Qiusheng Wu, Xingyun Peng, Liqin Yao, Dengfeng Peng, Qiuqiang Zhan
We experimentally realized one-scan fluorescence emission difference nanoscopy (FED) by simultaneously imaging two different color emissions of NaYF4 :Er3+ @NaYF4 @NaYF4 :Yb3+ /Tm3+ upconversion nanoparticles. Under the irradiation of two synchronized laser beams, a solid 940 nm beam and a hollow 808 nm beam, green emission of Er3+ and blue emission of Tm3+ can be orthogonally generated and collected. After simple subtraction, a resulting super-resolution image featuring 54 nm resolution was obtained. This strategy of excitation orthogonality would greatly improve the imaging speed and the applicability of FED nanoscopy...
December 7, 2018: Nanoscale
Bin Xu, Guohui Yu, Hui Li, Zheni Xie, Wuwu Wen, Jing Zhang, Bingru Huang
Chl breakdown is a hallmark of leaf senescence. Protein degradation is tightly associated with accelerated Chl catabolism during leaf senescence. Therefore, blocking or reducing Chl breakdown and thereby improving Chl and leaf protein contents is desirable for agronomic improvement in perennial forage grasses. Perennial ryegrass (Lolium perenne L.) is one principle cool-season forage grass in temperate areas throughout the world. In this study, the perennial ryegrass STAY-GREEN gene (LpSGR) was cloned and characterized...
January 1, 2019: Plant & Cell Physiology
Yi Xu, Bingru Huang
Heat and drought stress are primary abiotic stresses confining growth of cool-season grass species during summer. The objective of this study was to identify common molecular factors and metabolic pathways associated with heat and drought responses in creeping bentgrass (Agrostis stolonifera) by comparative analysis of transcriptomic profiles between plants exposed to heat and drought stress. Plants were exposed to heat stress (35/30 °C day/night temperature) or drought stress by withholding irrigation for 21 d in growth chambers...
October 12, 2018: Scientific Reports
Lili Zhuang, Wei Cao, Jian Wang, Jingjin Yu, Zhimin Yang, Bingru Huang
Heat transcription factors ( Hsfs ) belong to a large gene family classified into A, B, and C groups, with classes A and B Hsfs being well-characterized and known for their roles in plant tolerance to abiotic stresses. The functions and roles of Class C Hsfs are not well-documented. The objectives of this study were to characterize a class C Hsf gene ( FaHsfC1b ) cloned from tall fescue ( Festuca arundinacea ), a perennial grass species, and to determine the physiological functions of FaHsfC1b in regulating heat tolerance by overexpressing FaHsfC1b in Arabidopsis thaliana ...
September 11, 2018: International Journal of Molecular Sciences
Xiaxiang Zhang, Yi Xu, Bingru Huang
Stress priming by exposing plants to a mild or moderate drought could enhance plant tolerance to subsequent heat stress. Lipids play vital roles in stress adaptation, but how lipidomic profiles change, affecting the cross-stress tolerance, is largely unknown. The objectives of this study were to perform lipidomics, to analyse the content, composition, and saturation levels of lipids in leaves of tall fescue (Festuca arundinacea) following drought priming and subsequent heat stress, and to identify major lipids and molecular species associated with priming-enhanced heat tolerance...
March 2019: Plant, Cell & Environment
Zhou Li, Yan Peng, Bingru Huang
Gamma-aminobutyric acid (GABA) may play a positive role in regulating plant tolerance to drought or heat stress. The objectives of this study were to investigate the physiological effects of GABA on tolerance of creeping bentgrass ( Agrostis stolonifera ) to heat and drought stress and to determine whether enhanced heat and drought tolerance due to GABA treatment was associated with the up-regulation of selected genes and transcriptional factors involved in stress protection. Creeping bentgrass (cultivar "Penncross") plants were treated with 0...
May 31, 2018: International Journal of Molecular Sciences
Qiannan Hu, Shuoxin Zhang, Bingru Huang
Strigolactones (SL) have recently been found to play roles in regulating root development. However, it remains unclear how SL may mediate root elongation of perennial grass species under different temperatures that differentially affect root growth. The objectives of this study were to examine effects of SL on root elongation of tall fescue and to examine the interactive effects of SL and auxin in regulating root growth under both non-stress and heat stress conditions. Tall fescue (cv. 'Kentuck-31') plants were treated with GR24 (a synthetic strigolactones), NAA (α-naphthylacetic acid), or NPA (auxin transport inhibitor N-1-naphthylphalamic acid) or their combination under non-stress control and heat stress (35/30 °C) in growth chamber...
June 2018: Plant Science: An International Journal of Experimental Plant Biology
Yunpu Zheng, Fei Li, Lihua Hao, Arshad Ali Shedayi, Lili Guo, Chao Ma, Bingru Huang, Ming Xu
BACKGROUND: Grasslands are one of the most representative vegetation types accounting for about 20% of the global land area and thus the response of grasslands to climate change plays a pivotal role in terrestrial carbon balance. However, many current climate change models, based on earlier results of the doubling-CO2 experiments, may overestimate the CO2 fertilization effect, and as a result underestimate the potentially effects of future climate change on global grasslands when the atmospheric CO2 concentration goes beyond the optimal level...
February 5, 2018: BMC Plant Biology
Yi Xu, Bingru Huang
BACKGROUND: Heat stress is the primary abiotic stress limiting growth of cool-season grass species. The objective of this study was to determine molecular factors and metabolic pathways associated with superior heat tolerance in thermal bentgrass (Agrostis scabra) by comparative analysis of transcriptomic profiles with its co-generic heat-sensitive species creeping bentgrass (A. stolonifera). RESULTS: Transcriptomic profiling by RNA-seq in both heat-sensitive A...
January 22, 2018: BMC Genomics
Yi Xu, Jinyu Wang, Stacy A Bonos, William A Meyer, Bingru Huang
Heat stress is one of the major abiotic factors limiting the growth of cool-season grass species during summer season. The objectives of this study were to assess genetic variations in the transcript levels of selected genes in fine fescue cultivars differing in heat tolerance, and to identify single nucleotide polymorphism (SNP) markers associated with candidate genes related to heat tolerance. Plants of 26 cultivars of five fine fescue species ( Festuca spp.) were subjected to heat stress (38/33 °C, day/night temperature) in controlled environmental growth chambers...
January 1, 2018: International Journal of Molecular Sciences
Qiusheng Wu, Bingru Huang, Xingyun Peng, Sailing He, Qiuqiang Zhan
Optical super-resolution microscopy has become a powerful technique to help scientists to monitor the sample of interest at nanoscale. Fluorescence emission difference (FED) microscopy, a very facile super-resolution method, does not require high depleting laser intensity and is independent on the species of agents, which makes FED microscopy possess great potential. However, to date, the biomarkers applied in FED microscopy usually suffer from a photo-bleaching problem. In this work, by introducing Er3+ activated upconverting nanoparticles with red-color emission and non-photobleaching properties, we demonstrate nonbleaching super-resolution imaging with FED microscopy...
December 11, 2017: Optics Express
Wuwu Wen, Zheni Xie, Guohui Yu, Chengliang Zhao, Jing Zhang, Linkai Huang, Bin Xu, Bingru Huang
Background: The C-repeat-binding factors/DRE-binding factors (CBF/DREBs) comprise a key transcription factor family involved in plant stress tolerance. Yet, there is limited information about switchgrass DREB genes and their functional roles. Results: In this study, four cold-inducible PvDREB1s were identified from switchgrass ( Panicum virgatum ), among which PvDREB1C was the one responded to cold stress later than the other three PvDREB1s . Yet, ectopic overexpression of PvDREB1C led to significantly compromised, instead of improved cold tolerance in transgenic tobacco...
2018: Hereditas
Qiuqiang Zhan, Haichun Liu, Baoju Wang, Qiusheng Wu, Rui Pu, Chao Zhou, Bingru Huang, Xingyun Peng, Hans Ågren, Sailing He
Stimulated emission depletion microscopy provides a powerful sub-diffraction imaging modality for life science studies. Conventionally, stimulated emission depletion requires a relatively high light intensity to obtain an adequate depletion efficiency through only light-matter interaction. Here we show efficient emission depletion for a class of lanthanide-doped upconversion nanoparticles with the assistance of interionic cross relaxation, which significantly lowers the laser intensity requirements of optical depletion...
October 20, 2017: Nature Communications
Jingjin Yu, Ran Li, Ningli Fan, Zhimin Yang, Bingru Huang
Global climate changes involve elevated temperature and CO2 concentration, imposing significant impact on plant growth of various plant species. Elevated temperature exacerbates heat damages, but elevated CO2 has positive effects on promoting plant growth and heat tolerance. The objective of this study was to identify metabolic pathways affected by elevated CO2 conferring the improvement of heat tolerance in a C4 perennial grass species, bermudagrass (Cynodon dactylon Pers.). Plants were planted under either ambient CO2 concentration (400 μmol⋅mol-1) or elevated CO2 concentration (800 μmol⋅mol-1) and subjected to ambient temperature (30/25°C, day/night) or heat stress (45/40°C, day/night)...
2017: Frontiers in Plant Science
Xiuyun Wang, Lili Zhuang, Yi Shi, Bingru Huang
Abscisic acid (ABA) is known to play roles in regulating plant tolerance to various abiotic stresses, but whether ABA's effects on heat tolerance are associated with its regulation of heat stress transcription factors (HSFs) and heat shock proteins (HSPs) is not well documented. The objective of this study was to determine whether improved heat tolerance of tall fescue ( Festuca arundinacea Schreb.) by ABA was through the regulation of HSFs and HSPs. ABA-responsive transcriptional factors, ABA-responsive element binding protein 3 (FaAREB3) and dehydration-responsive element binding protein 2A (FaDREB2A) of tall fescue, were able to bind to the cis -elements in the promoter of tall fescue heat stress transcription factor A2c (Fa HSFA2c )...
September 15, 2017: International Journal of Molecular Sciences
Yi Shi, Kuiju Niu, Bingru Huang, Wenhui Liu, Huiling Ma
Bacterial volatile compounds (BVCs) have been reported to enhance plant growth and elicit plant defenses against fungal infection and insect damage. The objective of this study was to determine transcriptomic changes in response to synthetic BVC that could be associated with plant resistance to Rhizoctonia solani in creeping bentgrass. The 2,3-butanediol (BD) (250 µM) was sprayed on creeping bentgrass leaves grown in jam jars. The result showed that synthetic BD induced plant defense against R. solani for creeping bentgrass...
August 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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