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Mitochondrial Genome of Callus Protoplast Has a Role in Mesophyll Protoplast Regeneration in Citrus: Evidence From Transgenic GFP Somatic Homo-fusion

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Horticultural Plant Journal 2017年第5期3卷 177-182页

作者： CAI Xiaodong fu jing GUO Wenwu Key Laboratory of Horticultural Plant Biology (Ministry of Education) College of Horticulture and Forestry Sciences Huazhong Agricultural University College of Horticulture and Gardening Yangtze University

Protoplast fusion has great potential in citrus improvement. Although citrus mesophyll protoplasts usually cannot divide and regenerate,symmetric protoplast fusion of embryogenic callus protoplast + mesophyll protoplast sometimes results in the regeneration of mesophyllparent-type cybrids. It suggested that mitochondrial DNA(mt DNA) from protoplasts of embryogenic callus parent plays an important role in stimulating division and regeneration of mesophyll protoplasts. Herein, somatic fusion was conducted via electrofusion between callus protoplasts isolated from Valencia orange [Citrus sinensis(L.) Osbeck] cell suspension cultures and transgenic GFP-tagged mesophyll protoplasts from the same genotype, i.e. transgenic Valencia orange plants containing the green fluorescent protein(GFP) gene, in an effort to elucidate whether mt DNA of callus line could stimulate the division and regeneration of mesophyll protoplasts from the same genotype. Two embryoids and one plantlet with GFP expression were successfully obtained and subsequent ploidy analysis by flow cytometry indicated that they were all diploids. The regenerated diploid embryoids and plantlet with GFP expression could be considered as ‘cybrids' with mt DNA from the callus protoplasts of Valencia orange. The result indicated that citrus mesophyll-parent-type cybrid regeneration needed the stimulation of mt DNA from protoplasts of embryogenic callus parent regardless of their origin either from another genotype or the same genotype as the mesophyll parent.

关键词： citrus cybrid mitochondrial DNA(mtDNA) callus protoplast mesophyll somatic hybridization

A Parallel Quantum Algorithm for the Satisfiability Problem

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Communications in Theoretical Physics 2008年第3期49卷 629-630页

作者： LIU Wen-Zhang ZHANG jing-fu LONG Gui-Lu Key Laboratory for Atomic and Molecular NanoSciences and Department of Physics Tsinghua University Beijing 100084 China Tsinghua National Laboratory for Information Science and Technology Beijing 100084 China

In this paper we present a classical parallel quantum algorithm for the satisfiability problem. We have exploited the classical parallelism of quantum algorithms developed in [G.L. Long and L. Xiao, Phys. Rev. A 69 （2004） 052303], so that additional acceleration can be gained by using classical parallelism. The quantum algorithm first estimates the number of solutions using the quantum counting algorithm, and then by using the quantum searching algorithm, the explicit solutions are found.

关键词： satisfiability problem quantum search algorithm long algorithm

Mei Symmetry of General Discrete Holonomic System

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Communications in Theoretical Physics 2008年第9期50卷 607-610页

作者： SHI Shen-Yang CHEN Li-Qun fu jing-Li Department of Physics Zhejiang Sci-Tech University Hangzhou 310018 China Shanghai Institute of Applied Mathematics and Mechanics Shanghai University Shanghai 200072 China

The Mei symmetry and conserved quantity of general discrete holonomic system are investigated in *** requirement for an invariant formalism of discrete motion equations is defined to be Mei *** when a conserved quanti... 详细信息

关键词： discrete mechanics Mei symmetry discrete conserved quantity

Dynamics of an autonomous Gilpin-Ayala competition model with random perturbation

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International Journal of Biomathematics 2021年第3期14卷 1-21页

作者： jing fu Qixing Han Daqing Jiang Yanyan Yang School of Mathematics Changchun Normal UniversityChangchun 130032JilinP.R.China College of Science China University of PetroleumQingdao 266580Shandong ProvinceP.R.China Nonlinear Analysis and Applied Mathematics(NAAM)-Research Group King Abdulaziz University JeddahSaudi Arabia

This paper discusses the dynamics of a Gilpin-Ayala competition model of two interacting species perturbed by white *** obtain the existence of a unique global positive solution of the system and the solution is bounded in pth ***,we establish sufficient and necessary conditions for persistence and the existence of an ergodic stationary distribution of the *** also establish sufficient conditions for extinction of the ***,numerical simulations are carried out for further support of present research.

关键词： Stochastic Gilpin-Ayala competition system extinction persistence stationary Distribution

Vulnerability Analysis of MEGA Encryption Mechanism

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Computers, Materials & Continua 2022年第10期73卷 817-829页

作者： Qingbing Ji Zhihong Rao Lvlin Ni Wei Zhao jing fu School of Cybersecurity Northwestern Polytechnical UniversityXi’an710072China No.30 Institute of CETC Chengdu610041China Eberly College of Science Pennsylvania State University-University ParkPA16802USA

MEGA is an end-to-end encrypted cloud storage platform controlled by ***,the communication between MEGA client and server is carried out under the protection of Transport Layer Security(TLS)encryption,it is difficult to intercept the key data packets in the process of MEGA registration,login,file data upload,and *** characteristics of MEGA have brought great difficulties to its *** paper presents a method to attack MEGA to provide an effective method for MEGA’s *** debugging the open-source code of MEGA and analyzing the security white paper published,this paper first clarifies the encryption mechanism of MEGA,including the detailed process of registration,login,and file encryption,studies the encryption mechanism of MEGA from the perspective of protocol analysis,and finds out the vulnerability of MEGA encryption *** this basis,a method to attack MEGA is proposed,and the secret data stored in the MEGA server can be accessed or downloaded;Finally,the efficiency of the attack method is analyzed,and some suggestions to resist this attack method are put forward.

关键词： TLS advanced encryption standard forensics protocol analysis vulnerability

Correlation between excitation index and Eddington ratio in radio galaxies

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Research in Astronomy and Astrophysics 2016年第9期16卷 23-30页

作者： jing-fu Hu Xin-Wu Cao Liang Chen Bei You Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 China Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 China Key Laboratory of Radio Astronomy Chinese Academy of Sciences 210008 Nanjing China University of Chinese Academy of Sciences Beijing 100049 China Nicolaus Copernicus Astronomical Center Polish Academy of Sciences Bartycka 1800-716 Warsaw Poland

We use a sample of 111 radio galaxies with redshift z 〈 0.3 to investigate their nuclear properties. The black hole masses of the sources in this sample are estimated with the velocity dispersion/luminosity of the galaxies, or the width of the broad-lines. We find that the excitation index, the relative intensity of low and high excitation lines, is correlated with the Eddington ratio for this sample. The size of the narrow-line region （NLR） was found to vary with ionizing luminosity as RNLR ∝ Lion^0.25 （Liu et al. 2013）. Using this empirical relation, we find that the correlation between the excitation index and the Eddington ratio can be reproduced by photoionization models. We adopt two sets of spectral energy distributions （SEDs）, with or without a big blue bump in ultraviolet as the ionizing continuum, and infer that the modeled correlation between the excitation index and the Eddington ratio is insensitive to the applied SED. This means that the difference between high excitation galaxies and low excitation galaxies is not caused by the different accretion modes in these sources. Instead, it may be caused by the size of the NLR.

关键词： accretion, accretion disks -- black hole physics -- galaxies active

Research Advances in High-Yielding Cultivation and Physiology of Super Rice

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Rice science 2012年第3期19卷 177-184页

作者： fu jing YANG Jian-chang Key Laboratory of Crop Genetics and Physiology of Jiangsu Province Yangzhou UniversityYangzhou 225009China

In 1996,China launched a program to breed super rice or super hybrid rice by combining intersubspecific heterosis with ideal plant ***,approximately 80 super rice varieties have been released and some of them show high grain yields of 12-21 t/hm2 in field *** main reasons for the high yields of super rice varieties,compared with those of conventional varieties,can be summarized as follows：more spikelets per panicle and larger sink size （number of spikelets per square meter）;larger leaf area index,longer duration of green leaf,greater photosynthetic rate,higher lodging resistance,greater dry matter accumulation before the heading stage,greater remobilization of pre-stored carbohydrates from stems and leaves to grains during the grain-filling period;and larger root system and greater root ***,there are two main problems in super rice production：poor grain-filling of the later-flowering inferior spikelets （in contrast to earlier-flowering superior spikelets）,and low and unstable seed-setting ***,we review recent research advances in the crop physiology of super rice,focusing on biological features,formation of yield components,and population ***,we suggest further research on crop physiology of super rice.

关键词： super rice grain yield grain filling crop physiology

Retroperitoneal Versus Transperitoneal Laparoscopic Partial Nephrectomy: A Systematic Review and Meta-analysis

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Chinese Medical Sciences Journal 2015年第4期30卷 239-244页

作者： jing fu Shan Ye Hua-jian Ye Department of Urology Shaoxing Branch the First Affiliated Hospital of Zhejiang University School of Medicine (Shaoxing Second Hospital) Department of Public Health Tashan Community Health Service Center

Objective To review published literatures comparing the safety and effectiveness of retroperitoneal laparoscopic partial nephrectomy(RLPN) with transperitoneal laparoscopic partial nephrectomy(TLPN) and provide reference for clinical work. Methods The search strategy was performed to identify relevant papers from the Cochrane Central Register of Controlled Trials, EMBASE, MEDLINE, Google Scholar, China Hospital Knowledge Database, Wangfang Chinese Periodical Database, and VIP Chinese Periodical Database. All papers comparing RLPN with TLPN were included from 2000 to 2015. Two to three reviewers independently screened, evaluated, and extracted the included papers. A Meta-analysis was executed by using Review Manager 5.3 software. The interesting outcomes were tumor size, operating time, estimated blood loss, warm ischaemia time, length of hospital stay, positive margin rate, open conversion rate, overall complication rate, and recurrence rate. Results The literature search obtained 378 papers, then 10 of them were ultimately met the inclusion criteria and included in the systematic review. Finally, 6 of the 10 papers were included in the Meta-analysis. RLPN had significantly less operating time [P = 0.01, mean difference(MD)=-33.68, 95% confidence interval(CI) within(-60.35,-7.01)] and shorter length of hospital stay [P < 0.0001, MD=-1.47, 95% CI within(-2.18,-0.76)] than TLPN. Significant differences were not found between RLPN and TLPN in other outcomes. Conclusions RLPN may be equally safe and be faster than TLPN. Each center can choose a modality according to your own operating habits and experience.

关键词： retroperitoneal transperitoneal laparoscopy partial nephrectomy systematic review

Time and Space Fractional Schrdinger Equation with Fractional Factor

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Communications in Theoretical Physics 2019年第1期71卷 16-26页

作者： Pei Xiang Yong-Xin Guo jing-Li fu Institute of Mathematical Physics Zhejiang Sci-Tech University Key Laboratory of Optical Field Manipulation of Zhejiang Province School of Physics Liaoning University

In this paper, we introduce a new definition of fractional derivative which contains a fractional factor, and its physical meanings are given. When studying the fractional Schrdinger equation(FSE) with this form of fractional derivative, the result shows that under the description of time FSE with fractional factor, the probability of finding a particle in the whole space is still conserved. By using this new definition to construct space FSE, we achieve a continuous transition from standard Schrdinger equation to the fractional one. When applying this form of Schrdinger equation to a particle in an infinite symmetrical square potential well, we find that the probability density distribution loses spatial symmetry and shows a kind of attenuation property. For the situation of a one-dimensional infinite δ potential well,the first derivative of time-independent wave function Φ to space coordinate x can be continuous everywhere when the particle is at some special discrete energy levels, which is much different from the standard Schrdinger equation.

关键词： fractional derivative fractional factor fractional Schr¨odinger equation Bessel function