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| 1 | Shortened Basal Internodes Encodes a Gibberellin 2-Oxidase and Contributes to Lodging Resistance in Rice显示文摘改进住宿抵抗的繁殖半矮子变化被证明了在自从绿 revolution.?However 的来临,增加谷物产量极其成功,在亚洲繁殖半矮子米饭变化的多数主要依赖于 SD1 的变异的等位基因的基因介绍,它编码赤霉素( GA ) 20-oxidase , OsGA20ox2 ,为催化 GA 生合成。这里,我们报导新米饭住宿抵抗基因,弄短的基础 Internodes (SBI ) ,它编码赤霉素 ? 2-oxidase 并且明确地控制灰煤杆的延伸通过撤销的基础 internodes GA 活动。SBI 主要在灰煤杆被表示基础 internodes。基因分析显示 SBI 是影响米饭高度和住宿抵抗的半主导的基因。SBI 突变而产生之遗传的变体显示不同活动并且与米饭变化的高度被联系。与 SBI 等位基因的更高的活动繁殖与改进住宿抵抗和增加的产量产生新米饭变化。SBI 的发现为生产半矮子米饭显型提供一个理想的基因资源并且为与提高的住宿抵抗和高产量引起米饭变化提供有效策略。 | Chang Liu Jinshan Gui Chenjian Fu Hasi Yu Dongliang Song Junhui Shen Peng Qin Xuanming Liu Bin Han Yuanzhu Yang Laigeng Li | 2018 | Molecular Plant2018，11，2： | 33 |
| 2 | PtrHB7, a class III HD-Zip Gene, Plays a Critical Role in Regulation of Vascular Cambium Differentiation in Populus显示文摘在树的第二等的生长的一个关键问题是脉管的形成层房间的区别怎么被指导到 concurrentlyform 二不同纸巾:木部或韧皮部。类 III homeodomain 白氨酸拉链(HD 压缩 III ) 基因被知道在主要、第二等的 growth.However 的进程在脉管的系统的开始, patterning,和区别玩 criticalroles,这些基因怎么控制第二等的脉管的区别的机制是未知的。这里,我们显示出那 Populus 类 III HD 压缩基因, PtrHB7,优先地在 cambial 被表示地区。压制 PtrHB7 的植物在木部与减小在脉管的纸巾显示了重要变化但是韧皮部的增加。Transcriptionalanalysis 表明调整木部区别的基因是下面调整的,而基因调整韧皮部 differentiationwere 起来调整。相应地, PtrHB7 overexpression 向木部房间提高了 cambial 房间的区别,但是禁止了韧皮部区别。cambial 房间区别上的 PtrHB7 规定与它的抄本丰富被联系。一起,结果 demonstratedthat PtrHB7 在在剂量依赖者 manner.Key 在 processof Populus 第二等的生长控制在第二等的木部和韧皮部纸巾之间的平衡区别起一个关键作用词: | Yingying Zhu Dongliang Song Jiayan Sun Xingfen Wang Laigeng Li | 2013 | Molecular Plant2013，6，4： | 13 |
| 3 | Phosphorylation of LTF1, an MYB Transcription Factor in Populus, Acts as a Sensory Switch Regulating Lignin Biosynthesis in Wood Cells显示文摘Lignin is specifically deposited in plant secondary cell walls,and initiation of lignin biosynthesis is regulated by a variety of developmental and environmental signals.However,the mechanisms governing the regulation of lignin biosynthesis remain to be elucidated.In this study,we identified a lignin biosynthesis-associated transcription factor(LTF)from Populus,LTF1,which binds the promoter of a key lignin biosynthetic gene encoding 4-coumarate-CoA ligase(4CL).We showed that LTF1 in its unphosphorylated state functions as a regulator restraining lignin biosynthesis.When LTF1 becomes phosphorylated by PdMPK6 in response to external stimuli such as wounding,it undergoes degradation through a proteasome pathway,resulting in activation of lignification.Expression of a phosphorylation-null mutant version of LTF1 led to stable protein accumulation and persistent attenuation of lignification in wood cells.Taken together,our study reveals a mechanism whereby LTF1 phosphorylation acts as a sensory switch to regulate lignin biosynthesis in response to environmental stimuli.The discovery of novel modulators and mechanisms modifying lignin biosynthesis has important implications for improving the utilization of cell-wall biomass. | Jinshan Gui Laifu Luo Yu Zhong Jiayan Sun Toshiaki Umezawa Laigeng Li | 2019 | Molecular Plant2019，12，10： | 10 |
| 4 | Rapid Characterization of Woody Biomass Digestibility and Chemical Composition Using Near-infrared Spectroscopy显示文摘Rapid determination of the properties of lignocellulosic material is highly desirable for biomass production and utilization.In the present study,measurements of woody biomass digestibility and chemical composition using near-infrared reflectance (NIR) spectroscopy were calibrated.Poplar and eucalyptus materials were recorded in NIR spectrum as well as determined for their chemical compositions of Klason lignin,α-cellulose,holocellulose,lignin syringyl/guaiacyl (S/G) ratio and enzymatic digestibility.Fitting of the NIR information with chemical properties and digestibility by partial least-squares (PLS) regression generated a group of trained NIR models that were able to be used for rapid biomass measurement.Applying the models for woody biomass measurements led to a reliable evaluation of the chemical composition and digestibility,suggesting the feasibility of using NIR spectroscopy in the rapid characterization of biomass properties. | Shen Hou Laigeng Li | 2011 | Journal of Integrative Plant Biology2011，53，2： | 5 |
| 5 | PtrCel9A6, an Endo-l,4-β-Glucanase, Is Required for Cell Wall Formation during Xylem Differentiation in Populus显示文摘 | Liangliang Yu Jiayan Sun Laigeng Li | 2013 | Molecular Plant2013，6，6： | 3 |
| 6 | Phenylpropanoid Derivatives Are Essential Components of Sporopollenin in Vascular Plants显示文摘The outer wall of pollen and spores,namely the exine,is composed of sporopollenin,which is highly resistant to chemical reagents and enzymes.In this study,we demonstrated that phenylpropanoid pathway derivatives are essential components of sporopollenin in seed plants.Spectral analyses showed that the autofluorescence of Lilium and Arabidopsis sporopollenin is similar to that of lignin.Thioacidolysis and NMR analyses of pollen from Lilium and Cryptomeria further revealed that the sporopollenin of seed plants contains phenylpropanoid derivatives,including p-hydroxybenzoate(p-BA),p-coumarate(p-CA),ferulate(FA),and lignin guaiacyl(G)units.The phenylpropanoid pathway is expressed in the tapetum in Arabidopsis,consistent with the fact that the sporopollenin precursor originates from the tapetum.Further germination and comet assays showed that this pathway plays an important role in protection of pollen against UV radiation.In the pteridophyte plant species Ophioglossum vulgatum and Lycopodium clavata,phenylpropanoid derivatives including p-BA and p-CA were also detected,but G units were not.Taken together,our results indicate that phenylpropanoid derivatives are essential for sporopollenin synthesis in vascular plants.In addition,sporopollenin autofluorescence spectra of bryophytes,such as Physcomitrella and Haplocladium,exhibit distinct characteristics compared with those of vascular plants,indicating the diversity of sporopollenin among land plants. | Jinp-Shi Xue Baocai Zhang HuaDong Zhan Yong-Lin Lv Xin-Lei Jia TianHua Wang Nai-Ying Yang Yu-Xia Lou Zai-Bao Zhang Wen-Jing Hu Jinshan Gui Jianguo Cao Ping Xu Yihua Zhou Jin-Feng Hu Laigeng Li Zhong-Nan Yang | 2020 | Molecular Plant2020，13，11： | 2 |
| 7 | A genomic and molecular view of wood formation显示文摘 | Li Laigeng Lu Shanfa Chiang V | | 0，，03： | 1 |
| 8 | The last step of syringyl monolignol biosynthesis in angiosperms is regulated by a novel gene encoding sinapyl alcohol dehydrogenase显示文摘 | LI LAIGENG XIAO FEI CHENG JACQUELINE LESHKEVICH | 2001 | The Plant Cell2001，13，： | 1 |
| 9 | Distinct Roles of Cinnamate 4-hydroxylase Genes in Populus显示文摘 | Lu Shanfa Zhou Yihua Li Laigeng | 2006 | Plant and Cell Physiology2006，，47： | 1 |
| 10 | Secondary xylem-specific expression of caffeoyl-coenzyme A 3-O-methyltransferase plays an important role in the methylation pathway associated with lignin biosynthesic in loblloly pine显示文摘 | YUNKO OSAKABE CHAND RASHEKHAR P | 1999 | Plant Molecular Biology1999，40，： | 1 |
| 11 | TwoMADS-boxgenes regulate vascularcambium activity and secondary growth by modulating auxin homeostasis in Populus显示文摘In trees,stem secondary growth depends on vascular cambium proliferation activity and subsequent cell differentiation,in which an auxin concentration gradient across the cambium area plays a crucial role in regulating the process.However,the underlying molecular mechanismfor the establishment of auxin concentration is not fully understood.In this study,we identified two function-unknown MADS-box genes,VCM1 and VCM2,which are expressed specifically in the vascular cambium and modulate the subcellular homeostasis of auxin.Simultaneous knockdown of both VCM1 and VCM2 enhanced vascular cambium proliferation activity and subsequent xylem differentiation.Overexpression of VCM1 suppressed vascular cambium activity and wood formation by regulating PIN5 expression,which tuned the soluble auxin concentration in the vascular cambium area.This study reveals the role of VCM1 and VCM2 in regulating the proliferation activity of the vascular cambium and secondary growth by modulating the subcellular auxin homeostasis in Populus. | Shuai Zheng Jiajia He Zengshun Lin Yingying Zhu Jiayan Sun Laigeng Li | 2021 | Plant Communications2021，2，5： | 1 |
| 12 | Combinatorial modification of multiple lignin traits in trees through multigene cotransformation显示文摘 | Li Laigeng Zhou Yihua Cheng Xiaofei | 2003 | Proc Nail Acad Sci USA2003，100，： | 1 |
| 13 | Combinatorial modification of multiple lignin traits intrees through multigenecotransformation显示文摘 | Laigeng Li | 2003 | PNAS2003，100，8： | 1 |
| 14 | Combinatorial modification of multiple lignin traits in trees through multiple cotransformation显示文摘 | LI LAIGENG ZHOU YIHUA CHENG XIAOFEI | 2003 | PNAS2003，100，： | 1 |
| 15 | Distinct roles of cin- namate 4-hydroxylase genes in Populus 显示文摘 | Lu'Shanfa Zhou Yihua Li Laigeng | 2006 | Plant Cell Physiol2006，47，7： | 1 |
| 16 | The last step of syringyl monolignol biosynthesis in angiosperms is regula- ted by a novel gene eneoding sinapyl alcohol dehydrogenase 显示文摘 | Li Laigeng Cheng Xiaofei Leshkevieh J | 2001 | The Plant Cell2001，13，7： | 1 |
| 17 | Biosynthesis and functions of metabolites显示文摘Metabolism is the basic activity of life.Two international conferences,including the 4th International Conference on Plant Metabolism(ICPM2017,http://gffzzcb1b8d6db44943e3h5pf05qn65nuw6cnf.ffgz.tsg.suse.edu.cn/2017/icpm.asp),and the 13th International Meeting on Biosynthesis,Function and Synthetic Biology of Isoprenoids(TERPNET2017,http://gffzzcb1b8d6db44943e3h5pf05qn65nuw6cnf.ffgz.tsg.suse.edu.cn/2017/terpnet.asp)were concurrently convened side by side in Dalian from July 16 to 20,2017.The two conferences were scheduled with independent programs to keep their traditional style,but also arranged | juncong sun bing leng guoan sheng xin fang laigeng li jirong huang xiaoquan qi xiaoya chen | 2017 | Science China(Life Sciences)2017，60，11： | 1 |
| 18 | The last step of syringyl monolignol biosynthesis in angiosperms is regulated by a novel gene encoding sinapyl alcohol dehydrogenase显示文摘 | Li Laigeng Cheng Xiaofei Leshkevich J | 2001 | The Plant Cell2001，13，： | 1 |
| 19 | A Phytochrome B-PIF4-MYC2/MYC4 module inhibits secondary cell wall thickening in response to shaded light显示文摘Secondary cell walls(SCWs)in stem cells provide mechanical strength and structural support for growth.SCW thickening varies under different light conditions.Our previous study revealed that blue light enhances SCW thickening through the redundant function of MYC2 and MYC4 directed by CRYPTOCHROME1(CRY1)signaling in fiber cells of the Arabidopsis inflorescence stem.In this study,we find that the Arabidopsis PHYTOCHROME B mutant phyB displays thinner SCWs in stem fibers,but thicker SCWs are deposited in the PHYTOCHROME INTERACTING FACTOR(PIF)quadruple mutant pif1pif3pif4pif5(pifq).The shaded light condition with a low ratio of red to far-red light inhibits stem SCW thickening.PIF4 interacts with MYC2 and MYC4 to affect their localization in nuclei,and this interaction results in inhibition of the MYCs’transactivation activity on the NST1 promoter.Genetic evidence shows that regulation of SCW thickening by PIFs is dependent on MYC2/MYC4 function.Together,the results of this study reveal a PHYB-PIF4-MYC2/MYC4 module that inhibits SCW thickening in fiber cells of the Arabidopsis stem. | Fang Luo Qian Zhang Hu Xin Hongtao Liu Hongquan Yang Monika SDoblin Antony Bacic Laigeng Li | 2022 | Plant Communications2022，3，6： | 1 |
| 20 | Combining single-cell RNA sequencing with spatial transcriptome analysis reveals dynamic molecular maps of cambium differentiation in the primary and secondary growth of trees显示文摘Primary and secondary growth of the tree stem are responsible for corresponding increases in trunk height and diameter.However,our molecular understanding of the biological processes that underlie these two types of growth is incomplete.In this study,we used single-cell RNA sequencing and spatial transcriptome sequencing to reveal the transcriptional landscapes of primary and secondary growth tissues in the Populus stem.Comparison between the cell atlas and differentiation trajectory of primary and secondary growth revealed different regulatory networks involved in cell differentiation from cambium to xylem precursors and phloem precursors.These regulatory networks may be controlled by auxin accumulation and distribution.Analysis of cell differentiation trajectories suggested that vessel and fiber development followed a sequential pattern of progressive transcriptional regulation.This research provides new insights into the processes of cell identity and differentiation that occur throughout primary and secondary growth of tree stems,increasing our understanding of the cellular differentiation dynamics that occur during stemgrowth in trees. | Renhui Li Zhifeng Wang Jia-Wei Wang Laigeng Li | 2023 | Plant Communications2023，4，5： | 0 |
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