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学者姓名：李欣欣
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Abstract ：
Phosphorus (P) is an essential yet frequently deficient plant nutrient. Optimizing P distribution and recycling between tissues is vital for improving P utilization efficiency (PUE). Yet, the mechanisms underlying the transport and re-translocation of P within plants remain unclear. Here, wide-ranging natural diversity in seed P allocation and positive correlations among yield traits were found using 190 soybean accessions in field trials. Among them, the P-efficient genotype BX10 outperformed BD2 in assessments of PUE that were largely explained through differences in P redistribution from pods to seeds under low P stress. Pods of BX10 were therefore subjected to transcriptome analysis, and GmVPE1 was identified as a vacuolar Pi transporter to investigate further. Importantly, significant DNA polymorphism in GmVPE1 promoter regions was remarkably associated with seed weight among soybean accessions grown on P-deficient soils. Further analyses suggested that mRNA abundance of GmVPE1 in haplotype 2 (Hap) is significantly higher than that GmVPE1Hap1. GmVPE1 was highly upregulated by P deficiency and preferentially expressed in pods, seeds, and seed coats, which was consistent with GUS staining using transgenic soybean plants carrying pGmVPE1Hap2::GUS. Near-isogenic lines carrying the GmVPE1Hap2 allele, along with stable transgenic soybeans overexpressing GmVPE1 in a GmVPE1Hap1 background, had increases in PUE, more seed setting, and greater yields in both greenhouse and field trials than control plants. In summary, natural variation among GmVPE1 alleles determines genetic expression and subsequent P re-translocation phenotypes, which impacts PUE and yield, and thereby makes this an important genetic resource for soybean molecular breeding.
Keyword ：
GmVPE1 GmVPE1 natural variation natural variation phosphate re-translocation phosphate re-translocation phosphorus utilization efficiency phosphorus utilization efficiency soybean soybean yield yield
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| GB/T 7714 | Chen, Jiaxin , Lian, Wenting , Li, Zhiang et al. Natural variation in the GmVPE1 promoter contributes to phosphorus re-translocation to seeds and improves soybean yield [J]. | PLANT BIOTECHNOLOGY JOURNAL , 2025 , 23 (4) : 1359-1372 . |
| MLA | Chen, Jiaxin et al. "Natural variation in the GmVPE1 promoter contributes to phosphorus re-translocation to seeds and improves soybean yield" . | PLANT BIOTECHNOLOGY JOURNAL 23 . 4 (2025) : 1359-1372 . |
| APA | Chen, Jiaxin , Lian, Wenting , Li, Zhiang , Guo, Xin , Li, Yaning , Zhao, Hongyu et al. Natural variation in the GmVPE1 promoter contributes to phosphorus re-translocation to seeds and improves soybean yield . | PLANT BIOTECHNOLOGY JOURNAL , 2025 , 23 (4) , 1359-1372 . |
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Phosphorus (P) is an essential macronutrient for plant growth, but low P availability in soils is also a primary constraint to crop production. To meet the increasing demands for food, P fertilizer applications have been increased, causing the accumulation of surplus P in soils, which has led to the frequency and magnitude of associated risk effects on agroecosystems. Finding solutions for efficient and sustainable crop P utilization is, therefore, an urgent priority. This review summarizes recent progress in bioengineering approaches to improving crop P efficiency and highlights that modifying root architecture in P-deficient soils and reducing P accumulation in grains in soils with P surplus could offer a way forward for improving P use efficiency.
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| GB/T 7714 | Li, Xinxin , Tian, Jiang , Chen, Xinping et al. Bioengineering and management for efficient and sustainable utilization of phosphorus in crops [J]. | CURRENT OPINION IN BIOTECHNOLOGY , 2024 , 90 . |
| MLA | Li, Xinxin et al. "Bioengineering and management for efficient and sustainable utilization of phosphorus in crops" . | CURRENT OPINION IN BIOTECHNOLOGY 90 (2024) . |
| APA | Li, Xinxin , Tian, Jiang , Chen, Xinping , Liao, Hong . Bioengineering and management for efficient and sustainable utilization of phosphorus in crops . | CURRENT OPINION IN BIOTECHNOLOGY , 2024 , 90 . |
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建立高效的大豆(Glycine max)转基因毛状根嵌合植株体系对于推动大豆功能基因组学研究具有重要意义。该研究利用3种大豆基因型材料比较了不同共培养条件下毛状根诱导率及成活率。结果显示,用发根农杆菌(Agrobacterium rhizogenes)侵染外植体并在黑暗条件下共培养1天是诱导毛状根形成的有效策略。研究发现清除下胚轴处不定根可显著增加毛状根的数目并促进根系生长,进而提高转基因毛状根的阳性率。毛状根诱导14天接种根瘤菌,可增强生长初期转基因毛状根与根瘤菌的接触,从而提高大豆的结瘤效率。该研究成功建立了一种高效培育大豆转基因毛状根嵌合植株的方法,可广泛应用于大豆基因功能研究。
Keyword ：
优化 优化 大豆 大豆 嵌合植株 嵌合植株 毛状根 毛状根 结瘤 结瘤
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| GB/T 7714 | 陈佳欣 , 梅浩 , 黄彩翔 et al. 利用转基因毛状根高效培育大豆嵌合植株的方法 [J]. | 植物学报 , 2024 , 59 (01) : 89-98 . |
| MLA | 陈佳欣 et al. "利用转基因毛状根高效培育大豆嵌合植株的方法" . | 植物学报 59 . 01 (2024) : 89-98 . |
| APA | 陈佳欣 , 梅浩 , 黄彩翔 , 梁宗原 , 全依桐 , 李东鹏 et al. 利用转基因毛状根高效培育大豆嵌合植株的方法 . | 植物学报 , 2024 , 59 (01) , 89-98 . |
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Associative nitrogen fixation contributes large portion of N input to agro-ecosystems through monocot-diazotrophic associations. However, the contribution of associative nitrogen fixation is usually neglected in modern agriculture, and the underlying mechanisms of association between monocot and diazotrophs remain elusive. Here, we demonstrated that monocot crops employ mucilage and associated benzoic acid to specially enrich diazotrophic partners in response to nitrogen deficiency, which could be used for enhancing associative nitrogen fixation in monocot crops. To be specific, mucilage and benzoic acid induced in sugarcane roots by nitrogen deficiency mediated enrichment of nitrogen-fixing Paraburkholderia through specific recruitment whereas other bacteria were simultaneously repelled. Further studies suggest maize employs a similar strategy in promoting associations with diazotrophs. In addition, our results also suggest that benzoic acid application significantly increases copy numbers of the nifH gene in soils and enhances associative nitrogen fixation in maize using 15N enrichment assay. Taken together, these results reveal a mechanism regulating the association between monocot crops and nitrogen-fixing bacteria, and, thereby point towards ways to harness these beneficial microbes in efforts to increase nitrogen efficiency in monocot crops through pathways regulated by a specific signaling molecule.
Keyword ：
benzoic acid benzoic acid nitrogen nitrogen paraburkholderia paraburkholderia root microbiota root microbiota sugarcane sugarcane
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| GB/T 7714 | Liu, Ran , Li, Ruirui , Li, Yanjun et al. Benzoic acid facilitates ANF in monocot crops by recruiting nitrogen-fixing Paraburkholderia [J]. | ISME JOURNAL , 2024 , 18 (1) . |
| MLA | Liu, Ran et al. "Benzoic acid facilitates ANF in monocot crops by recruiting nitrogen-fixing Paraburkholderia" . | ISME JOURNAL 18 . 1 (2024) . |
| APA | Liu, Ran , Li, Ruirui , Li, Yanjun , Li, Mingjia , Ma, Wenjing , Zheng, Lei et al. Benzoic acid facilitates ANF in monocot crops by recruiting nitrogen-fixing Paraburkholderia . | ISME JOURNAL , 2024 , 18 (1) . |
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In arbuscular mycorrhizal (AM) symbiosis, sugars in root cortical cells could be exported as glucose or sucrose into peri-arbuscular space for use by AM fungi. However, no sugar transporter has been identified to be involved in sucrose export. An AM-inducible SWEET transporter, GmSWEET6, was functionally characterised in soybean, and its role in AM symbiosis was investigated via transgenic plants. The expression of GmSWEET6 was enhanced by inoculation with the cooperative fungal strain in both leaves and roots. Heterologous expression in a yeast mutant showed that GmSWEET6 mainly transported sucrose. Transgenic plants overexpressing GmSWEET6 increased sucrose concentration in root exudates. Overexpression or knockdown of GmSWEET6 decreased plant dry weight, P content, and sugar concentrations in non-mycorrhizal plants, which were partly recovered in mycorrhizal plants. Intriguingly, overexpression of GmSWEET6 increased root P content and decreased the percentage of degraded arbuscules, while knockdown of GmSWEET6 increased root sugar concentrations in RNAi2 plants and the percentage of degraded arbuscules in RNAi1 plants compared with wild-type plants when inoculated with AM fungi. These results in combination with subcellular localisation of GmSWEET6 to peri-arbuscular membranes strongly suggest that GmSWEET6 is required for AM symbiosis by mediating sucrose efflux towards fungi.
Keyword ：
arbuscular mycorrhizal fungi arbuscular mycorrhizal fungi soybean (Glycine max) soybean (Glycine max) sucrose export sucrose export SWEET SWEET symbiosis symbiosis
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| GB/T 7714 | Zheng, Linsheng , Zhao, Shaopeng , Zhou, Yifan et al. The soybean sugar transporter GmSWEET6 participates in sucrose transport towards fungi during arbuscular mycorrhizal symbiosis [J]. | PLANT CELL AND ENVIRONMENT , 2023 , 47 (4) : 1041-1052 . |
| MLA | Zheng, Linsheng et al. "The soybean sugar transporter GmSWEET6 participates in sucrose transport towards fungi during arbuscular mycorrhizal symbiosis" . | PLANT CELL AND ENVIRONMENT 47 . 4 (2023) : 1041-1052 . |
| APA | Zheng, Linsheng , Zhao, Shaopeng , Zhou, Yifan , Yang, Guoling , Chen, A. , Li, Xinxin et al. The soybean sugar transporter GmSWEET6 participates in sucrose transport towards fungi during arbuscular mycorrhizal symbiosis . | PLANT CELL AND ENVIRONMENT , 2023 , 47 (4) , 1041-1052 . |
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Acid soils occupy approximately 50％of potentially arable lands.Improving crop productivity in acid soils,therefore,will be crucial for ensuring food security and agricultural sustainability.High soil acidity often coexists with phosphorus(P)deficiency and aluminum(Al)toxicity,a combination that severely impedes crop growth and yield across wide areas.As roots explore soil for the nutrients and water required for plant growth and development,they also sense and respond to below-ground stresses.Within the terres-trial context of widespread P deficiency and Al toxicity pressures,plants,particularly roots,have evolved a variety of mechanisms for adapting to these stresses.As legumes,soybean(Glycine max)plants may acquire nitrogen(N)through symbiotic nitrogen fixation(SNF),an adaptation that can be useful for mit-igating excessive N fertilizer use,either directly as leguminous crop participants in rotation and inter-cropping systems,or secondarily as green manure cover crops.In this review,we investigate legumes,especially soybean,for recent advances in our understanding of root-based mechanisms linked with root architecture modification,exudation and symbiosis,together with associated genetic and molecular strategies in adaptation to individual and/or interacting P and Al conditions in acid soils.We propose that breeding legume cultivars with superior nutrient efficiency and/or Al tolerance traits through genetic selection might become a potentially powerful strategy for producing crop varieties capable of maintain-ing or improving yields in more stressful soil conditions subjected to increasingly challenging environ-mental conditions.
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| GB/T 7714 | Xinxin Li , Xinghua Zhang , Qingsong Zhao et al. Genetic improvement of legume roots for adaption to acid soils [J]. | 作物学报（英文版） , 2023 , 11 (4) : 1022-1033 . |
| MLA | Xinxin Li et al. "Genetic improvement of legume roots for adaption to acid soils" . | 作物学报（英文版） 11 . 4 (2023) : 1022-1033 . |
| APA | Xinxin Li , Xinghua Zhang , Qingsong Zhao , Hong Liao . Genetic improvement of legume roots for adaption to acid soils . | 作物学报（英文版） , 2023 , 11 (4) , 1022-1033 . |
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Nodulation begins with the initiation of infection threads (ITs) in root hairs. Though mutual recognition and early symbiotic signaling cascades in legumes are well understood, molecular mechanisms underlying bacterial infection processes and successive nodule organogenesis remain largely unexplored.We functionally investigated a novel pectate lyase enzyme, GmNPLa, and its transcriptional regulator GmPTF1a/b in soybean (Glycine max), where their regulatory roles in IT development and nodule formation were elucidated through investigation of gene expression patterns, bioinformatics analysis, biochemical verification of genetic interactions, and observation of phenotypic impacts in transgenic soybean plants.GmNPLa was specifically induced by rhizobium inoculation in root hairs. Manipulation of GmNPLa produced remarkable effects on IT and nodule formation. GmPTF1a/b displayed similar expression patterns as GmNPLa, and manipulation of GmPTF1a/b also severely influenced nodulation traits. LI soybeans with low nodulation phenotypes were nearly restored to HI nodulation level by complementation of GmNPLa and/or GmPTF1a. Further genetic and biochemical analysis demonstrated that GmPTF1a can bind to the E-box motif to activate transcription of GmNPLa, and thereby facilitate nodulation. Taken together, our findings potentially reveal novel mediation of cell wall gene expression involving the basic helix-loop-helix transcription factor GmPTF1a/b acts as a key early regulator of nodulation in soybean.
Keyword ：
cell wall modification cell wall modification GmPTF1a/b GmPTF1a/b infection threads infection threads nodulation nodulation pectate lyase pectate lyase soybean soybean
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| GB/T 7714 | Zhang, Xiao , Chen, Jia-Xin , Lian, Wen-Ting et al. Molecular module GmPTF1a/b-GmNPLa regulates rhizobia infection and nodule formation in soybean [J]. | NEW PHYTOLOGIST , 2023 , 241 (4) : 1813-1828 . |
| MLA | Zhang, Xiao et al. "Molecular module GmPTF1a/b-GmNPLa regulates rhizobia infection and nodule formation in soybean" . | NEW PHYTOLOGIST 241 . 4 (2023) : 1813-1828 . |
| APA | Zhang, Xiao , Chen, Jia-Xin , Lian, Wen-Ting , Zhou, Hui-Wen , He, Ying , Li, Xin-Xin et al. Molecular module GmPTF1a/b-GmNPLa regulates rhizobia infection and nodule formation in soybean . | NEW PHYTOLOGIST , 2023 , 241 (4) , 1813-1828 . |
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Abstract ：
Acid soils occupy approximately 50% of potentially arable lands. Improving crop productivity in acid soils, therefore, will be crucial for ensuring food security and agricultural sustainability. High soil acidity often coexists with phosphorus (P) deficiency and aluminum (Al) toxicity, a combination that severely impedes crop growth and yield across wide areas. As roots explore soil for the nutrients and water required for plant growth and development, they also sense and respond to below-ground stresses. Within the terres-trial context of widespread P deficiency and Al toxicity pressures, plants, particularly roots, have evolved a variety of mechanisms for adapting to these stresses. As legumes, soybean (Glycine max) plants may acquire nitrogen (N) through symbiotic nitrogen fixation (SNF), an adaptation that can be useful for mit-igating excessive N fertilizer use, either directly as leguminous crop participants in rotation and inter-cropping systems, or secondarily as green manure cover crops. In this review, we investigate legumes, especially soybean, for recent advances in our understanding of root-based mechanisms linked with root architecture modification, exudation and symbiosis, together with associated genetic and molecular strategies in adaptation to individual and/or interacting P and Al conditions in acid soils. We propose that breeding legume cultivars with superior nutrient efficiency and/or Al tolerance traits through genetic selection might become a potentially powerful strategy for producing crop varieties capable of maintain-ing or improving yields in more stressful soil conditions subjected to increasingly challenging environ-mental conditions.& COPY; 2023 Crop Science Society of China and Institute of Crop Science, CAAS. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Keyword ：
Acid soils Acid soils Aluminum toxicity Aluminum toxicity Genetic improvement Genetic improvement Phosphorus deficiency Phosphorus deficiency Soybean Soybean
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| GB/T 7714 | Li, Xinxin , Zhang, Xinghua , Zhao, Qingsong et al. Genetic improvement of legume roots for adaption to acid soils [J]. | CROP JOURNAL , 2023 , 11 (4) : 1022-1033 . |
| MLA | Li, Xinxin et al. "Genetic improvement of legume roots for adaption to acid soils" . | CROP JOURNAL 11 . 4 (2023) : 1022-1033 . |
| APA | Li, Xinxin , Zhang, Xinghua , Zhao, Qingsong , Liao, Hong . Genetic improvement of legume roots for adaption to acid soils . | CROP JOURNAL , 2023 , 11 (4) , 1022-1033 . |
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Soybean (Glycine max (L.) Merr.) is an important nutritional crop with high seed protein content. Production of high protein concentrations relies on sufficient nutrient supplies, especially of nitrogen (N) and phosphorus (P). Although the genetic basis for seed quality traits has been well studied, little information exists on any genetic connections between seed quality and nutrient supplies in soybean. Here, a recombinant inbred line (RIL) population of 179 progeny was generated using HC6 and JD17 as parents contrasting in seed quality and N and P translocation efficiencies. Seed protein and N and P translocation efficiencies were higher in HC6 than in JD17. Meanwhile, positive correlations were observed between seed protein content and translocation efficiency of N and P in RILs, implying that high N and P translocation efficiencies might facilitate seed protein accumulation. A genetic map was constructed using 5250 SNP markers covering a genetic distance of 3154.83 cM. A total of 6 loci for quality and 13 loci for N and P translocation efficiency were detected. Among them, two fragments on chromosome 6 and chromosome 20 contained multiple significant markers for both quality and N and P translocation efficiencies, with the respective observed LOD values ranging from 2.98 to 5.61, and 3.01 to 11.91, while the respective PVE values ranged from 8.2% to 13.9%, and 8.3% to 28.0%. Interestingly, one significant locus on chromosome 20 appears to be the product of a transposable element (TE) InDel in Glyma.20G085100, with progeny lacking the TE also exhibiting higher N and P translocation efficiencies, along with higher seed protein contents. Taken together, these results provide genetic evidence that increasing N and P translocation efficiencies may lead to increasing protein contents in soybean seeds. Furthermore, a TE InDel may be used as a genetic marker for breeding elite soybean cultivars with high protein content and N and P translocation efficiencies.
Keyword ：
nutrient nutrient protein protein QTL QTL quality quality soybean soybean translocation efficiency translocation efficiency
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| GB/T 7714 | Zhao, Qingsong , Ma, Niannian , Li, Ruirui et al. Seed Protein Genetics Linked with Nitrogen and Phosphorus Translocation Efficiency in Soybean [J]. | AGRONOMY-BASEL , 2023 , 13 (2) . |
| MLA | Zhao, Qingsong et al. "Seed Protein Genetics Linked with Nitrogen and Phosphorus Translocation Efficiency in Soybean" . | AGRONOMY-BASEL 13 . 2 (2023) . |
| APA | Zhao, Qingsong , Ma, Niannian , Li, Ruirui , Zhong, Yongjia , Li, Xinxin , Liao, Hong . Seed Protein Genetics Linked with Nitrogen and Phosphorus Translocation Efficiency in Soybean . | AGRONOMY-BASEL , 2023 , 13 (2) . |
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本发明公开了一种大豆氮营养高效基因GmNN1及其应用。所述GmNN1基因从氮高效大豆材料中分离鉴定得到，其核苷酸序列如SEQ ID NO : 1所示，其编码的蛋白序列如SEQ ID NO : 2所示，其启动子区域存在43bp的插入/缺失变异，导致其表达量明显不同。近等基因系及转基因敲除/过表达GmNN1试验证明，GmNN1通过调控大豆结瘤进而提高了大豆氮效率。嫁接实验证明，GmNN1蛋白从地上部移动到根系调控大豆根瘤的形成，进而提高了生物固氮能力，最终促进了大豆生长和植株氮含量。本发明为氮高效及高效固氮的大豆分子育种或遗传改良提供基因资源，对发展减肥增效的绿色可持续农业具有重要的指导和实践意义。
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| GB/T 7714 | 李欣欣 , 廖红 , 钟永嘉 et al. 大豆氮营养高效基因GmNN1及其应用 : CN202210513264.1[P]. | 2022-05-12 . |
| MLA | 李欣欣 et al. "大豆氮营养高效基因GmNN1及其应用" : CN202210513264.1. | 2022-05-12 . |
| APA | 李欣欣 , 廖红 , 钟永嘉 , 程玲 , 周慧文 , 马念念 . 大豆氮营养高效基因GmNN1及其应用 : CN202210513264.1. | 2022-05-12 . |
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