Basic helix-loop-helix(bHLH)transcription factors regulate diverse plant processes,particularly anthocyanin biosynthesis through the MYB-bHLH-WD40 complex.Despite snapdragon(Antirrhinum majus)serving as a classical mo...Basic helix-loop-helix(bHLH)transcription factors regulate diverse plant processes,particularly anthocyanin biosynthesis through the MYB-bHLH-WD40 complex.Despite snapdragon(Antirrhinum majus)serving as a classical model for studying flower pigmentation genetics,its bHLH gene family has rarely been comprehensively characterized.Here,we performed a genome-wide identification and systematic characterization of the bHLH gene family in A.majus,with a focus on candidates involved in anthocyanin biosynthesis.A total of 150 AmbHLH genes were identified and subjected to in-silico analyses,including phylogenetic classification,structural analysis,and promoter cis-element characterization.Comparative transcriptomic profiling between anthocyanin-poor(“SIPPE50”,Green)and anthocyanin-rich(“JI2R”,Red)snapdragon lines highlighted eight differentially expressed AmbHLHs.AmbHLH001,AmbHLH002,and AmbHLH042 showed significant upregulation in the anthocyanin-rich line and showed positive correlations with the expression of key anthocyanin biosynthetic genes.Among these,AmbHLH002 was prioritized as a candidate and was assessed via heterologous overexpression in tomatoes.Notably,AmbHLH002 is a newly identified regulator whose overexpression in tomato resulted in visible purple pigmentation and increased anthocyanin accumulation.These findings support the view that AmbHLH002 acts as a positive regulator,with phylogenetic evidence for conservation of anthocyanin biosynthesis,presenting valuable potential for engineering pigmentation traits in ornamental plants and serving as a candidate visible marker for plant genetic transformation.展开更多
Aqueous zinc-ion batteries(AZIBs)are currently confronted with the challenge of achieving long-term cyclic stability under high current densities.This issue is primarily attributed to the excessive growth of dendrites...Aqueous zinc-ion batteries(AZIBs)are currently confronted with the challenge of achieving long-term cyclic stability under high current densities.This issue is primarily attributed to the excessive growth of dendrites and the occurrence of significant side reactions.Herein,sucralose(SCL),as an electrolyte additive,has been used to promote the exposure of the Zn(002)texture.The introduction of SCL can adjust the Zn~(2+)nucleation and diffusion along different crystal facets,promoting the exposure of the Zn(002)texture.By substituting water molecules in the[Zn(H_(2)O)_(6)]~(2+),SCL reconfigures the hydrogen bond network in the electrolyte,reconstructing the solvation structure and suppressing the hydrogen evolution reaction.Consequently,the Zn//Zn symmetric battery exhibits long-term cycling stability of over 4900 h at 1 mA cm^(-2)-1 mAh cm^(-2).Even at a harsh condition of 30 mA cm^(-2)-30 mAh cm^(-2)(DOD=73.3%),it can stably cycle for 171 h.The CE of the Zn//Cu half battery reaches 99.61% at 0.2 mA cm^(-2)with 0.2 mAh cm^(-2).Employing the optimized electrolyte,after 500 cycles,a high specific capacity of 420 mAh g^(-1)can be retained for the NH_4V_4O_(10)//Zn full battery at 500 mA g^(-1),corresponding to a capacity retention of 90.7%.展开更多
为选育适宜甘肃天水、平凉、庆阳等地栽培的高产、优质紫苏新品种,天水市农业科学研究所以地方紫苏品种甘谷紫苏为亲本,应用系统选育方法,育成高含油量油用紫苏新品系TS002。2018—2019年参加甘肃省多点区域试验,2 a 7点(次)平均折合产...为选育适宜甘肃天水、平凉、庆阳等地栽培的高产、优质紫苏新品种,天水市农业科学研究所以地方紫苏品种甘谷紫苏为亲本,应用系统选育方法,育成高含油量油用紫苏新品系TS002。2018—2019年参加甘肃省多点区域试验,2 a 7点(次)平均折合产量1999.03 kg/hm^(2),较对照品种陇苏1号增产9.14%。2019年参加了生产示范试验,平均折合产量1847.89 kg/hm^(2),较对照品种陇苏1号增产15.11%。TS002籽粒含油率51.03%、亚麻酸含量598.0 g/kg、蛋白质含量245.0 g/kg。适宜在甘肃天水、平凉、庆阳等地春季直播或麦后复种。展开更多
Aqueous zinc ion batteries(AZIBs)have attracted widespread attention due to their unique advantages.However,the growth of dendrites on the anode and the occurrence of side reactions limits the improvement of electroch...Aqueous zinc ion batteries(AZIBs)have attracted widespread attention due to their unique advantages.However,the growth of dendrites on the anode and the occurrence of side reactions limits the improvement of electrochemical performance of AZIBs.The alloying of zinc anode effectively alleviates above problems,which is beneficial to the long-term cycle performance of AZIBs.In this study,zinc-copper alloy anode(Cu@Zn)was synthesized by melting method.The method is not only simple and easy to operate,but also can make the synthesized anode Cu element uniform distribution and improve the corrosion resistance of the anode.At the same time,the Cu@Zn surface reconstructed has a large proportion of Zn(002)crystal surface exposure,with the zinc affinity of Cu.Both of them can induce the uniform deposition of Zn2+ions along the Zn(002)crystal plane,further inhibiting the growth of dendrite.The Cu@Zn//Cu@Zn symmetrical batteries can cycle more than 1000 times at current densities of 0.3 and 1.2 mA cm^(-2),and maintain a relatively low hysteresis voltage.And the discharge capacity retention rate of Cu@Zn//MnO_(2)maintains 84.64%at 2.0 A g^(-1)after 1000 cycles.This study provides a new methodological reference for the development of advanced AZIBs anodes.展开更多
Uniform deposition is a promising strategy to inhibit dendrite growth and corrosion of the Zn anode in cost-effective energy storage systems:aqueous Zn-ion batteries(AZIBs).Herein,we report a regulating Zn^(2+)ions di...Uniform deposition is a promising strategy to inhibit dendrite growth and corrosion of the Zn anode in cost-effective energy storage systems:aqueous Zn-ion batteries(AZIBs).Herein,we report a regulating Zn^(2+)ions dissolution/deposition method for achieving a highly reversible Zn anode.11-mercaptoundecanoic acid(MUA)as ligands was utilized to protect the(002)plane,benefiting from the strong affinity between the thiol group and Zn,with MUA anchoring in the form of Zn-S-RCOOH,which contributes to a stable interface for uniform deposition/deposition.展开更多
Aqueous zinc-ion batteries(AZIBs)are promising due to the advantages of metallic zinc,including the high specific capacity(820 mAh g^(-1)),low redox potential(−0.76 V vs.SHE),inherent safety,low cost,and environmental...Aqueous zinc-ion batteries(AZIBs)are promising due to the advantages of metallic zinc,including the high specific capacity(820 mAh g^(-1)),low redox potential(−0.76 V vs.SHE),inherent safety,low cost,and environmental sustainability.Despite these benefits,AZIBs face challenges such as uneven Zn deposition and excessive hydrogen evolution reaction(HER)at the Zn anode,which reduce the battery's coulombic efficiency and cycling life.This study introduces an ammonium formate(AF)additive into a 2.0 M ZnSO_(4) electrolyte to address these issues.The AF additive promotes the three-dimensional rapid diffusion of Zn^(2+)on the anode surface and induces the preferential Zn(002)plane deposition,thus inhibiting dendrite growth and enhancing cycling stability.It also disrupts the hydrogen bond network of electrolyte,reducing the number of active H2O molecules and suppressing H_(2)O-induced side reactions.Consequently,the Zn||Zn symmetric cell with the AF additive shows stable cycling over 2100 h at 5.0 mA cm^(−2) with an areal capacity of 1.0 mAh cm^(−2),and maintains stability over 9700 cycles at 30 mA cm^(−2).When applied in a Zn||VO_(2) full cell,it achieves capacity retention of 68.9%after 2000 cycles,which demonstrates significant performance improvements in AZIBs.展开更多
基金funded by the USDANIFA grant 2019-67013-29236the USDA HATCH program FLA-MFC-006387,awarded to Heqiang Huo.
文摘Basic helix-loop-helix(bHLH)transcription factors regulate diverse plant processes,particularly anthocyanin biosynthesis through the MYB-bHLH-WD40 complex.Despite snapdragon(Antirrhinum majus)serving as a classical model for studying flower pigmentation genetics,its bHLH gene family has rarely been comprehensively characterized.Here,we performed a genome-wide identification and systematic characterization of the bHLH gene family in A.majus,with a focus on candidates involved in anthocyanin biosynthesis.A total of 150 AmbHLH genes were identified and subjected to in-silico analyses,including phylogenetic classification,structural analysis,and promoter cis-element characterization.Comparative transcriptomic profiling between anthocyanin-poor(“SIPPE50”,Green)and anthocyanin-rich(“JI2R”,Red)snapdragon lines highlighted eight differentially expressed AmbHLHs.AmbHLH001,AmbHLH002,and AmbHLH042 showed significant upregulation in the anthocyanin-rich line and showed positive correlations with the expression of key anthocyanin biosynthetic genes.Among these,AmbHLH002 was prioritized as a candidate and was assessed via heterologous overexpression in tomatoes.Notably,AmbHLH002 is a newly identified regulator whose overexpression in tomato resulted in visible purple pigmentation and increased anthocyanin accumulation.These findings support the view that AmbHLH002 acts as a positive regulator,with phylogenetic evidence for conservation of anthocyanin biosynthesis,presenting valuable potential for engineering pigmentation traits in ornamental plants and serving as a candidate visible marker for plant genetic transformation.
基金supported by the Anhui Provincial Science and Technology Innovation Initiative(202423i08050051)the Anhui Provincial Natural Science Foundation(2408085MB029)+1 种基金the HFIPS Director’s Fund(YZJJGGZX202201)the Natural Science Foundation of Hebei Province of China(B2024402018)。
文摘Aqueous zinc-ion batteries(AZIBs)are currently confronted with the challenge of achieving long-term cyclic stability under high current densities.This issue is primarily attributed to the excessive growth of dendrites and the occurrence of significant side reactions.Herein,sucralose(SCL),as an electrolyte additive,has been used to promote the exposure of the Zn(002)texture.The introduction of SCL can adjust the Zn~(2+)nucleation and diffusion along different crystal facets,promoting the exposure of the Zn(002)texture.By substituting water molecules in the[Zn(H_(2)O)_(6)]~(2+),SCL reconfigures the hydrogen bond network in the electrolyte,reconstructing the solvation structure and suppressing the hydrogen evolution reaction.Consequently,the Zn//Zn symmetric battery exhibits long-term cycling stability of over 4900 h at 1 mA cm^(-2)-1 mAh cm^(-2).Even at a harsh condition of 30 mA cm^(-2)-30 mAh cm^(-2)(DOD=73.3%),it can stably cycle for 171 h.The CE of the Zn//Cu half battery reaches 99.61% at 0.2 mA cm^(-2)with 0.2 mAh cm^(-2).Employing the optimized electrolyte,after 500 cycles,a high specific capacity of 420 mAh g^(-1)can be retained for the NH_4V_4O_(10)//Zn full battery at 500 mA g^(-1),corresponding to a capacity retention of 90.7%.
基金financially supported by Natural Science Foundation of Hebei Province(Nos.E2024209118,B2022209026)Central Guided Local Science and Technology Development Funding Program(No.246Z4414G)+2 种基金Key Research Project Focused on Basic Research of Hebei Province Education Department(No.JZX2024026)Science and Technology Planning Project of Tangshan City(No.24130217C)Youth Scholars Promotion Plan of North China University of Science and Technology(No.QNTJ202309)
文摘Aqueous zinc ion batteries(AZIBs)have attracted widespread attention due to their unique advantages.However,the growth of dendrites on the anode and the occurrence of side reactions limits the improvement of electrochemical performance of AZIBs.The alloying of zinc anode effectively alleviates above problems,which is beneficial to the long-term cycle performance of AZIBs.In this study,zinc-copper alloy anode(Cu@Zn)was synthesized by melting method.The method is not only simple and easy to operate,but also can make the synthesized anode Cu element uniform distribution and improve the corrosion resistance of the anode.At the same time,the Cu@Zn surface reconstructed has a large proportion of Zn(002)crystal surface exposure,with the zinc affinity of Cu.Both of them can induce the uniform deposition of Zn2+ions along the Zn(002)crystal plane,further inhibiting the growth of dendrite.The Cu@Zn//Cu@Zn symmetrical batteries can cycle more than 1000 times at current densities of 0.3 and 1.2 mA cm^(-2),and maintain a relatively low hysteresis voltage.And the discharge capacity retention rate of Cu@Zn//MnO_(2)maintains 84.64%at 2.0 A g^(-1)after 1000 cycles.This study provides a new methodological reference for the development of advanced AZIBs anodes.
基金supported by the foundation of Guangxi Innovation Driven Development Project Grant(AA22068080)the Science and Technology Plan of Guangxi(No.ZY22096019)+2 种基金the National Natural Science Foundation of China(No.51874051 and 52111530139)the Australian Research Council Discovery Program(DP220103416)Australian Research Council Future Fel owships(FT200100730,FT210100804)。
文摘Uniform deposition is a promising strategy to inhibit dendrite growth and corrosion of the Zn anode in cost-effective energy storage systems:aqueous Zn-ion batteries(AZIBs).Herein,we report a regulating Zn^(2+)ions dissolution/deposition method for achieving a highly reversible Zn anode.11-mercaptoundecanoic acid(MUA)as ligands was utilized to protect the(002)plane,benefiting from the strong affinity between the thiol group and Zn,with MUA anchoring in the form of Zn-S-RCOOH,which contributes to a stable interface for uniform deposition/deposition.
基金supported by the Natural Science Foundation of Guangxi(2022JJD120011)the National Natural Science Foundation of China(22479031,22162004).
文摘Aqueous zinc-ion batteries(AZIBs)are promising due to the advantages of metallic zinc,including the high specific capacity(820 mAh g^(-1)),low redox potential(−0.76 V vs.SHE),inherent safety,low cost,and environmental sustainability.Despite these benefits,AZIBs face challenges such as uneven Zn deposition and excessive hydrogen evolution reaction(HER)at the Zn anode,which reduce the battery's coulombic efficiency and cycling life.This study introduces an ammonium formate(AF)additive into a 2.0 M ZnSO_(4) electrolyte to address these issues.The AF additive promotes the three-dimensional rapid diffusion of Zn^(2+)on the anode surface and induces the preferential Zn(002)plane deposition,thus inhibiting dendrite growth and enhancing cycling stability.It also disrupts the hydrogen bond network of electrolyte,reducing the number of active H2O molecules and suppressing H_(2)O-induced side reactions.Consequently,the Zn||Zn symmetric cell with the AF additive shows stable cycling over 2100 h at 5.0 mA cm^(−2) with an areal capacity of 1.0 mAh cm^(−2),and maintains stability over 9700 cycles at 30 mA cm^(−2).When applied in a Zn||VO_(2) full cell,it achieves capacity retention of 68.9%after 2000 cycles,which demonstrates significant performance improvements in AZIBs.
