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| 1 | Effects of soil properties on accumulation characteristics of copper,manganese, zinc, and cadmium in Chinese turnip显示文摘Clarifying the mechanisms of heavy metal(HM)accumulation and translocation from soil-root-leaf is crucial to coping with soil HM pollution.In this study,we analysed copper(Cu),manganese(Mn),zinc(Zn)and cadmium(Cd)accumulation characteristics in Chinese turnips and the effect of soil physicochemical properties on both HM accumulation and translocation.Our results indicate that Chinese turnips absorb and translocate Mn,Zn,and Cd at much higher levels than they do Cu.When we measured bioconcentration factors in Chinese turnips for different HMs in the same soil,we found Chinese turnip capacities for HM accumulation decrease from Zn>Mn>Cd>Cu.In addition,the translocation factor for these HMs decreases from Mn>Cd>Zn>Cu.Correlation analysis indicates that soil p H and various soil components are either negatively or positively correlated with Mn,Zn,and Cd accumulation;also,soil properties are correlated with Mn translocation from root to leaf.These findings may help evaluate HM accumulation and translocation mechanisms as well as artificially regulate HM uptake levels from soils to turnips. | Boqun Li Di Chen Yongping Yang Xiong Li | 2019 | Plant Diversity2019，41，5： | 2 |
| 2 | Primary andsecondary structure of novel ACE-inhibitory peptides from egg whiteprotein显示文摘 | YU Zhiping LIU Boqun ZHAO Wenzhu | 2012 | Food Chemistry2012，133，2： | 1 |
| 3 | Primary andsecondary structure of novel ACE-inhibitory peptides from egg whiteprotein显示文摘 | YU Zhipeng LIU Boqun ZHAO Wenzhu | 2012 | Food Chemistry2012，133，2： | 1 |
| 4 | Expression of SET protein in the ovaries of patients with polycystic ovary syndrome 显示文摘 | Boqun X Xiaonan D Yugui C | 2013 | Int J Endocrinol2013，2013，36： | 1 |
| 5 | Correct of excitation spectra of long persistent phosphors显示文摘 | Zhu Jing Wu Boqun | 2000 | Journal of Luminescence2000，90，： | 1 |
| 6 | Comparative expression analysis of heavy metal ATPase subfamily genes between Cd-tolerant and Cd-sensitive turnip landraces显示文摘The heavy metal ATPase(HMA)subfamily is mainly involved in heavy metal(HM)tolerance and transport in plants,but an understanding of the definite roles and mechanisms of most HMA members are still limited.In the present study,we identified 14 candidate HMA genes named BrrHMAl—BrrHMA8 from the turnip genome and analyzed the phylogeny,gene structure,chromosome distribution,and conserved domains and motifs of HMAs in turnip(Brassica rapa var.rapa).According to our phylogenetic tree,the BrrHMAs are divided into a Zn/Cd/Co/Pb subclass and Cu/Ag subclass.The BrrHMA members show similar structural characteristics within subclasses.To explore the roles of BrrHMAs in turnip,we compared the gene sequences and expression patterns of the BrrHMA genes between a Cd-tolerant landrace and a Cd-sensitive landrace.Most BrrHMA genes showed similar spatial expression patterns in both Cd-tolerant and Cd-sensitive turnip landraces;some BrrHMA genes,however,were differentially expressed in specific tissue in Cd-tolerant and Cd-sensitive turnip.Specifically,BrrHMA genes in the Zn/Cd/Co/Pb subclass shared the same coding sequence but were differentially expressed in Cd-tolerant and Cd-sensitive turnip landraces under Cd stress.Our findings suggest that the stable expression and up-regulated expression of BrrHMA Zn/Cd/Co/Pb subclass genes under Cd stress may contribute to the higher Cd tolerance of turnip landraces. | Yuansheng Wu Xiong Li Di Chen Xi Han Boqun Li Yonghong Yang Yongping Yang | 2019 | Plant Diversity2019，41，4： | 1 |
| 7 | Primary and secondary structure of novel ACE-inhibitory peptides from egg white protein显示文摘 | Zhipeng Yu Boqun Liu Wenzhu Zhao Yongguang Yin Jingbo Liu Feng Chen | 2012 | Food Chemistry2012，，2： | 1 |
| 8 | Spatial resolution of pace mapping of idiopathic ventricular tachycardia/ectopy originating in the right ventricular outflow tract显示文摘 | Boqun F Tai M Yinq M | 2008 | Heart Rhythm2008，5，3： | 1 |
| 9 | Recent advances in tip-enhanced Raman spectroscopy probe designs显示文摘Tip-enhanced Raman spectroscopy(TERS)imaging is a super-resolution imaging technique that features the merits of both surface-enhanced Raman spectroscopy(SERS)and scanning probe microscopy(SPM),such as the high chemical sensitivity from the former and the nanoscale spatial resolution from the latter.These advantages make TERS an essential nanospectroscopic characterization technique for chemical analysis,materials science,bio-sensing,etc.TERS probes,the most critical factor determining the TERS imaging quality,are expected to provide a highly confined electromagnetic hotspot with a minimized scattering background for the generation of Raman signals with high spatial resolution.After two decades of development,numerous probe design concepts have been proposed and demonstrated.This review provides a comprehensive overview of the state-of-the-art TERS probe designs,from the working mechanism to the practical performance.We start with reviewing the recent development of TERS configurations and the corresponding working mechanisms,including the SPM platforms,optical excitation/collection techniques,and probe preparation methods.We then review the emerging novel TERS probe designs,including the remote-excitation probes,the waveguide-based nanofocusing probes,the metal-coated nanofocusing probes,the nanowire-assisted selective-coupling probes,and the tapered metal-insulator-metal probes.Our discussion focuses on a few critical aspects,including the surface-plasmon-polariton(SPP)hotspot excitation technique,conversion efficiency,working frequency,and controllability.In the end,we review the latest TERS applications and give a perspective on the future of TERS. | Da Xu Boqun Liang Yaodong Xu Ming Liu | 2023 | Nano Research2023，16，4： | 0 |
| 10 | Physiological and biochemical analysis of mechanisms underlying cadmium tolerance and accumulation in turnip显示文摘The capacity of plants to accumulate cadmium(Cd) is significant for phytoremediation of Cd-polluted soils. Turnips cultivated in China include species featuring high Cd accumulation and some of these plants act as Cd hyperaccumulator landraces. These plants can accumulate over 100 mg Cd kg^(-1) dry weight in leaves without injury. Hence, studies that explore mechanisms underlying Cd detoxification and transport in turnip plants are essential. In the present study, we compared physiological and biochemical changes in turnip leaves treated with two Cd concentrations to controls. We discovered that Cd stress significantly increased the enzymatic activities or compound contents in the antioxidant system, including members of the glutathione-ascorbic acid cycle, whereas oxidation of reactive oxygen species(ROS) remained stable. Cd treatments also increased the contents of phytochelatins as well as a number of amino acids. Based on these results, we conclude that turnips initiate a series of response processes to manage Cd treatment. First, the antioxidant system maintaining ROS homeostasis and osmotic adjustment is excited to maintain stability of cell osmotic potential. Cd is chelated into its stable form to reduce its toxicity. Cd is possibly transported to vacuoles or non-protoplasts for isolation. Amino acid synthesis may directly and indirectly play an important role in these processes. This study partly revealed physiological and biochemical mechanisms underlying turnip response to Cd stress and provides information on artificially increasing or decreasing Cd accumulation in turnips and other plants. | Xiong Li Xiaoming Zhang YuanshengWu Boqun Li Yongping Yang | 2018 | Plant Diversity2018，40，1： | 0 |
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