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| 1 | Genomic analysis,trajectory tracking,and field surveys reveal sources and long-distance dispersal routes of wheat stripe rust pathogen in China显示文摘Identifying sources of phytopathogen inoculum and determining their contributions to disease outbreaks are essential for predicting disease development and establishing control strategies.Puccinia striiformis f.sp.tritici(Pst),the causal agent of wheat stripe rust,is an airborne fungal pathogen with rapid virulence variation that threatens wheat production through its long-distance migration.Because of wide variation in geographic features,climatic conditions,and wheat production systems,Pst sources and related dispersal routes in China are largely unclear.In the present study,we performed genomic analyses of 154 Pst isolates from all major wheat-growing regions in China to determine Pst population structure and diversity.Through trajectory tracking,historical migration studies,genetic introgression analyses,and field surveys,we investigated Pst sources and their contributions to wheat stripe rust epidemics.We identified Longnan,the Himalayan region,and the Guizhou Plateau,which contain the highest population genetic diversities,as the Pst sources in China.Pst from Longnan disseminates mainly to eastern Liupan Mountain,the Sichuan Basin,and eastern Qinghai;that from the Himalayan region spreads mainly to the Sichuan Basin and eastern Qinghai;and that from the Guizhou Plateau migrates mainly to the Sichuan Basin and the Central Plain.These findings improve our current understanding of wheat stripe rust epidemics in China and emphasize the need for managing stripe rust on a national scale. | Yuxiang Li Jichen Dai Taixue Zhang Baotong Wang Siyue Zhang Conghao Wang Jiguang Zhang Qiang Yao Mingju Li Chengyun Li Yuelin Peng Shiqin Cao Gangming Zhan Fei Tao Haifeng Gao Weili Huang Xiaojun Feng Yingwen Bai Zhuoma Qucuo Hongsheng Shang Chong Huang Wancai Liu Jiasui Zhan Xiangming Xu Xianming Chen Zhensheng Kang Xiaoping Hu | 2023 | Plant Communications2023，4，4： | 1 |
| 2 | Parallel generation of low-correlation wideband complex chaotic signals using CW laser and external-cavity laser with self-phase-modulated injection显示文摘A novel scheme for generating optical chaos is proposed and experimentally demonstrated,which supports to simultaneously produce two low-correlation chaotic signals with wideband spectrum and suppressed time-delay-signature(TDS).In the proposed scheme,we use the output of an external-cavity semiconductor laser(ECSL)as the driving signal of a phase modulator to modulate the output of a CW laser.Then the phase-modulated continuous-wave(CW)light is split into two parts,one is injected back into the ECSL that outputs one chaotic signal,while the other part is passed through a dispersion module for generating another chaotic signal simultaneously.The experimental results prove that the proposed scheme has three merits.Firstly,it can improve the bandwidth of ECSL-based chaos by several times,and simultaneously generate another wideband flat-spectrum chaotic signal.Secondly,the undesired TDS characteristics of the simultaneously-generated chaotic signals can be efficiently suppressed to an indistinguishable level within a wide parameter range,as such the complexities of the chaotic signals are considerably high.Thirdly,the correlation coefficient between these two simultaneously-generated chaotic signals is smaller than 0.1.The proposed scheme provides an attractive solution for parallel multiple chaos generation,and shows great potential for multiple channel chaos communications and multiple random bit generations. | Anke Zhao Ning Jiang Jiafa Peng Shiqin Liu Yiqun Zhang Kun Qiu | 2022 | Opto-Electronic Advances2022，5，5： | 1 |
| 3 | Constitutive Activation OsbZIP62 Improves Plant Height and Yield through Regulating the Expression of Agronomic Traits Related Genes in Rice显示文摘Plant height is an important morphological trait that affects crop yield.Several genes related to plant height and yield have been reported in rice(Oryza sativa L.),however,the molecular mechanism underlying the regulation of these traits is still not completely understood.VP64 is widely used as a transcriptional activator to investigate the biological function of genes encoding transcription factors.Here,we identified a novel bZIP transcription factor OsbZIP62 that is involved in modulating agronomic traits in rice.Overexpression of OsbZIP62-VP64(OsbZIP62V)significantly increases the plant height and yield per plant in rice.RNA-seq analysis showed that some plant height and panicle development related genes(i.e.,OsEATB,OsDSS1 and OsGA3ox2)were up-regulated in OsbZIP62V overexpressing rice plants.Besides,OsbZIP62 could also bind to the promoters of several putative target genes.These results suggested that OsbZIP62 plays a role as transcriptional regulator in regulating the expression of genes associated with agronomic traits,and OsbZIP62 fused with VP64 would be useful in crop genetic modification with improved plant architecture and yield. | Shiqin Yang Tao Jiang Peilin Shen Shengjie Ren Zhun Gu Fangjun Feng Yunpeng Peng Wei Wang Kai Xu | 2022 | Phyton-International Journal of Experimental Botany2022，91，8： | 0 |
| 4 | Structural and antioxidative properties of royal jelly protein by partial enzymatic hydrolysis显示文摘The objective of this study was to investigate the structural and antioxidative properties of royal jelly protein(RJP)at different degrees of hydrolysis(DH)by partial enzymatic hydrolysis. RJP was hydrolyzed by alcalase for 0 min, 15 min, 1 h, 5 h and 8 h to obtain hydrolysates at DH of 5.34%, 11.65%, 15.19%, 21.38% and 23.91%, respectively. With the increased DH, the RJP hydrolysates showed elevated antioxidative activities. The molecular weight of RJP hydrolysates was significantly decreased but their primary backbone kept unchanged. Analysis of circular dichroism spectra revealed that the enzymolysis reduced the content of α-helix but increased the contents of β-sheet, β-turn and random coil. Meanwhile, the surface hydrophobicity and fluorescence intensity of RJP hydrolysates were decreased and a red shift occurred. As the enzymolysis continued, the surface morphology of RJP was gradually changed from a sheet-like structure into microparticles. Changes in antioxidative activities and structures generally followed a DH-dependent manner, however these changes became insignificant for samples at DH beyond 20%. Taking into consideration of both effectiveness and productivity, the optimum enzymatic duration was determined at 5 h. | Shanshan Li Lingchen Tao Shiqin Peng Xinyu Yu Xiaobin Ma Fuliang Hu | 2023 | Food Science and Human Wellness2023，12，5： | 0 |
| 5 | An intra-articular injectable phospholipids-based gel for the treatment of rheumatoid arthritis显示文摘Rheumatoid arthritis(RA)is a chronic inflammatory and destructive arthropathy with a high deformity rate.Despite numerous studies and clinical trials,no curative treatment is available for large weight-bearing joints.Intra-articular(IA)injections could deliver high concentrations of drug to the afflicted joint and improve the drug efficacy while reducing systemic toxicity.However,free drugs are rapidly cleared from synovial fluid and do not significantly halt the progression of joint disease.Herein,a phospholipids-based controlledrelease gel was prepared for sustained IA delivery of celastrol(CEL)and the therapeutic efficiencywas evaluated in a rheumatoid arthritis rabbitmodel.The CEL-loaded gel(CEL-gel)contained up to 70%phospholipids yetwas easy to inject.After injecting into the joint cavity,CEL-gel achieved sol to gel phase transition without special stimuli and gelling agent.In vitro release and in vivo pharmacokinetic studies evidenced the stable and sustained release action of CEL-gel.A single IA injection of CEL-gel could maintain therapeutic efficiency for about 25 d and showed much better anti-arthritic efficacy compared to repeated injections of free drug solution(CEL-sol).Furthermore,the IA injection of CEL-gel greatly reduced the systemic toxicity of CEL.With good biocompatibility and biodegradability,CEL-gel might be a promising IA drug delivery system. | Yuping Yang Shiqin Luo Xiong Peng Ting Zhao Qin He Mengying Wu Wei Zhang Tao Gong Zhirong Zhang | 2023 | Asian Journal of Pharmaceutical Sciences2023，18，1： | 0 |
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