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  1. Article ; Online: Improving Sedum plumbizincicola genetic transformation with the SpGRF4-SpGIF1 gene and the self-excision CRE/LoxP system.

    Zhang, Yixin / Mo, Yanlan / Ren, Hongxu / Wu, Xiaotong / Han, Liyuan / Sun, Zhenyuan / Xu, Wenzhong

    Planta

    2024  Volume 259, Issue 5, Page(s) 119

    Abstract: Main conclusion: S. plumbizincicola genetic transformation was optimized using a self-excision molecular-assisted transformation system by integrating the SpGRF4/SpGIF1 gene with XVE and Cre/loxP. Sedum plumbizincicola, despite being an excellent ... ...

    Abstract Main conclusion: S. plumbizincicola genetic transformation was optimized using a self-excision molecular-assisted transformation system by integrating the SpGRF4/SpGIF1 gene with XVE and Cre/loxP. Sedum plumbizincicola, despite being an excellent hyperaccumulator of cadmium and zinc with significant potential for soil pollution phytoremediation on farmland, has nonetheless trailed behind other major model plants in genetic transformation technology. In this study, different explants and SpGRF4-SpGIF1 genes were used to optimize the genetic transformation of S. plumbizincicola. We found that petiole and stem segments had higher genetic transformation efficiency than cluster buds. Overexpression of SpGRF4-SpGIF1 could significantly improve the genetic transformation efficiency and shorten the period of obtaining regenerated buds. However, molecular assistance with overexpression of SpGRF4-SpGIF1 leads to abnormal morphology, resulting in plant tissue enlargement and abnormal growth. Therefore, we combined SpGRF4-SpGIF1 with XVE and Cre/loxP to obtain DNA autocleavage transgenic plants induced by estradiol, thereby ensuring normal growth in transgenic plants. This study optimized the S. plumbizincicola genetic transformation system, improved the efficiency of genetic transformation, and established a self-excision molecular-assisted transformation system. This work also established the basis for studying S. plumbizincicola gene function, and for S. plumbizincicola breeding and germplasm innovation.
    MeSH term(s) Sedum ; Soil Pollutants ; Plant Breeding ; Cadmium ; Biodegradation, Environmental ; Transformation, Genetic ; Soil
    Chemical Substances Soil Pollutants ; Cadmium (00BH33GNGH) ; Soil
    Language English
    Publishing date 2024-04-09
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 208909-9
    ISSN 1432-2048 ; 0032-0935 ; 1866-2749
    ISSN (online) 1432-2048
    ISSN 0032-0935 ; 1866-2749
    DOI 10.1007/s00425-024-04393-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Exploring Transcriptional Regulation of Hyperaccumulation in

    Zhang, Yixin / Mo, Yanlan / Han, Liyuan / Sun, Zhenyuan / Xu, Wenzhong

    International journal of molecular sciences

    2023  Volume 24, Issue 14

    Abstract: The cadmium ... ...

    Abstract The cadmium hyperaccumulator
    MeSH term(s) Cadmium/toxicity ; Cadmium/metabolism ; Sedum/metabolism ; CRISPR-Cas Systems ; Gene Expression Profiling ; Gene Expression Regulation, Plant ; Transcription Factors/genetics ; Soil Pollutants ; Biodegradation, Environmental ; Plant Roots/genetics ; Plant Roots/metabolism
    Chemical Substances Cadmium (00BH33GNGH) ; Transcription Factors ; Soil Pollutants
    Language English
    Publishing date 2023-07-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms241411845
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  3. Article ; Online: Multi-analytical approach to the mural painting from an ancient tomb of Ming Dynasty in Jiyuan, China: Characterization of materials and techniques.

    Liu, Zhaojun / Yang, Rui / Wang, Weihao / Xu, Wenzhong / Zhang, Mengzhu

    Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

    2022  Volume 279, Page(s) 121419

    Abstract: The pigments, surface deposition, preparatory layer and support from a mural painting tomb of Ming Dynasty (1368-1644 CE) were first time analyzed by micro-Raman, Fourier-transform Infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscope ... ...

    Abstract The pigments, surface deposition, preparatory layer and support from a mural painting tomb of Ming Dynasty (1368-1644 CE) were first time analyzed by micro-Raman, Fourier-transform Infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscope with energy-dispersive X-ray microanalysis (SEM-EDX), thermogravimetry and differential scanning calorimetry (TG-DSC) to reach a better understanding of the composition of the materials and the techniques adopted. All the pigments were identified, including hematite, cinnabar, malachite, yellow ochre, calcite and carbon black. The preparatory layer was found to be prepared by fine lime mortar with cotton fiber inside. The crystalline depositions on the mural painting were identified as calcite and dolomite originated from the lime-based preparatory layer. The support was found to be constructed with sticky rice lime mortar with several kinds of additives. The original lime stone was demonstrated to be magnesium-rich and the carbonization results were also discussed. These results revealed significant information on the materials and techniques used to build mural painting tomb in Ming Dynasty. This will benefit the further restoration and conservation works and also provide a methodology solution for the scientific analysis of ancient tomb mural paintings.
    Language English
    Publishing date 2022-05-23
    Publishing country England
    Document type Journal Article
    ZDB-ID 210413-1
    ISSN 1873-3557 ; 0370-8322 ; 0584-8539 ; 1386-1425
    ISSN (online) 1873-3557
    ISSN 0370-8322 ; 0584-8539 ; 1386-1425
    DOI 10.1016/j.saa.2022.121419
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  4. Article ; Online: Functional identification of anthocyanin glucosyltransferase genes: a Ps3GT catalyzes pelargonidin to pelargonidin 3-O-glucoside painting the vivid red flower color of Paeonia

    Wang, Qianyu / Zhu, Jin / Li, Bing / Li, Shanshan / Yang, Yong / Wang, Qingyun / Xu, Wenzhong / Wang, Liangsheng

    Planta. 2023 Apr., v. 257, no. 4 p.65-65

    2023  

    Abstract: MAIN CONCLUSION: Glycosylation from an anthocyanidin 3-O-glucosyltransferase Ps3GT (PsUGT78A27) facilitates the accumulation of pelargonidin 3-O-glucoside, which defines the vivid red flower color and occurs only in specific peony tree cultivars. ... ...

    Abstract MAIN CONCLUSION: Glycosylation from an anthocyanidin 3-O-glucosyltransferase Ps3GT (PsUGT78A27) facilitates the accumulation of pelargonidin 3-O-glucoside, which defines the vivid red flower color and occurs only in specific peony tree cultivars. Although tree peony cultivars of Chinese and Japanese both originated from China, vivid red color is only found in flowers of Japanese cultivars but not of Chinese cultivar groups. In this study, a Japanese tree peony cultivar ‘Taiyoh’ with vivid red petals and a Chinese tree peony cultivar ‘Hu Hong’ with reddish pink petals were chosen as the experimental materials. Flavonoids profiling indicated that pelargonidin 3-O-glucoside (Pg3G) detected only in Japanese cultivar contributed to vivid red color of tree peony petals, while pelargonidin 3,5-di-O-glucoside (Pg3G5G) found in both of Japanese and Chinese cultivars was responsible for pink flower color. Through the integration of full-length transcriptome sequencing and in vitro enzymatic activity analysis, two anthocyanin glucosyltransferase genes PsUGT78A27 and PsUGT75L45 were isolated from the petals of tree peony, and their encoding products exhibited enzymatic activities of pelargonidin 3-O-glucosyltransferase and anthocyanin 5-O-glucosyltransferase, respectively. Further quantitative real-time PCR revealed that PsUGT78A27 displayed high expression in petals of both cultivars and PsUGT75L45 was expressed at high levels in cultivar ‘Hu Hong’ only. Using a gene gun technique, the GFP fusion proteins of PsUGT78A27 and PsUGT75L45 were visualized to be cytoplasmic and nuclear localization in the epidermal cells of tree peony petals, and the glucosylation function of PsUGT78A27 and PsUGT75L45 to alter petal color of tree peony and herbaceous peony had been directly validated in vivo. These results demonstrated that PsUGT78A27 and PsUGT75L45 are key players for the presence or absence of vivid red flower color in tree peony cultivars. Our findings further elucidated the chemical and molecular mechanism of petal pigmentation of Paeonia and could help breed the Paeonia cultivars possessing novel flower colors.
    Keywords Paeonia suffruticosa ; anthocyanidin 3-O-glucosyltransferase ; anthocyanins ; biolistics ; color ; cultivars ; enzyme activity ; flower color ; flowers ; glucosylation ; pelargonidin ; pigmentation ; quantitative polymerase chain reaction ; transcriptome ; trees ; China
    Language English
    Dates of publication 2023-04
    Size p. 65.
    Publishing place Springer Berlin Heidelberg
    Document type Article ; Online
    ZDB-ID 208909-9
    ISSN 1432-2048 ; 0032-0935 ; 1866-2749
    ISSN (online) 1432-2048
    ISSN 0032-0935 ; 1866-2749
    DOI 10.1007/s00425-023-04095-2
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  5. Article ; Online: Structural characterization and neuroprotective effect of a polysaccharide from Corydalis yanhusuo.

    He, Yufeng / Xu, Wenzhong / Qin, Yimin

    International journal of biological macromolecules

    2020  Volume 157, Page(s) 759–768

    Abstract: In the present study, we investigated the neuroprotective effects of a purified Corydalis yanhusuo polysaccharide (CYP) on ... ...

    Abstract In the present study, we investigated the neuroprotective effects of a purified Corydalis yanhusuo polysaccharide (CYP) on Aβ
    MeSH term(s) Amyloid beta-Peptides/metabolism ; Animals ; Apoptosis/drug effects ; Cell Survival/drug effects ; Chromatography, Gel ; Corydalis/chemistry ; Magnetic Resonance Spectroscopy ; Membrane Potential, Mitochondrial/drug effects ; Methylation ; Molecular Structure ; Molecular Weight ; Neuroprotective Agents/chemistry ; Neuroprotective Agents/isolation & purification ; Neuroprotective Agents/pharmacology ; PC12 Cells ; Polysaccharides/chemistry ; Polysaccharides/isolation & purification ; Polysaccharides/pharmacology ; Rats ; Structure-Activity Relationship
    Chemical Substances Amyloid beta-Peptides ; Neuroprotective Agents ; Polysaccharides
    Language English
    Publishing date 2020-01-24
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2020.01.180
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  6. Article: Structural characterization and neuroprotective effect of a polysaccharide from Corydalis yanhusuo

    He, Yufeng / Xu, Wenzhong / Qin, Yimin

    International journal of biological macromolecules. 2020 Jan. 19,

    2020  

    Abstract: In the present study, we investigated the neuroprotective effects of a purified Corydalis yanhusuo polysaccharide (CYP) on Aβ (25–35)-induced neurotoxicity and explored its underlying molecular mechanisms in PC12 cells. The results showed pretreatment ... ...

    Abstract In the present study, we investigated the neuroprotective effects of a purified Corydalis yanhusuo polysaccharide (CYP) on Aβ (25–35)-induced neurotoxicity and explored its underlying molecular mechanisms in PC12 cells. The results showed pretreatment with CYP (25, 50, and 100 μg/ml) prior to Aβ (25–35) exposure significantly protected PC12 cells from Aβ (25–35)-induced cell death, lactate dehydrogenase (LDH) release, DNA fragmentation, mitochondrial dysfunction and mitochondrial cytochrome c release. Moreover, Aβ (25–35)-induced increase of ratio between Bax and Bcl-2 protein expression was dramatically reversed by CYP pretreatment. Furthermore, the addition of CYP led to a significant repressing effect on the elevated protein expression of cleaved caspase-8, caspase-9, and caspase-3 in Aβ (25–35)-treated PC12 cells. Taken together, these findings indicated that protective effect of CYP against Aβ (25–35)-induced toxicity in PC12 cells was probably mediated by inhibition of apoptosis via both mitochondrial apoptotic pathway and death receptor pathway.
    Keywords Corydalis yanhusuo ; DNA fragmentation ; apoptosis ; caspase-3 ; caspase-8 ; caspase-9 ; cytochrome c ; death domain receptors ; lactate dehydrogenase ; mitochondria ; neuroprotective effect ; neurotoxicity ; polysaccharides ; protein synthesis
    Language English
    Dates of publication 2020-0119
    Publishing place Elsevier B.V.
    Document type Article
    Note Pre-press version
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2020.01.180
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  7. Article: Biogenesis of flavor-related linalool is diverged and genetically conserved in tree peony (

    Li, Shanshan / Zhang, Ling / Sun, Miao / Lv, Mengwen / Yang, Yong / Xu, Wenzhong / Wang, Liangsheng

    Horticulture research

    2022  Volume 10, Issue 2, Page(s) uhac253

    Abstract: Floral scent is an important and genetically complex trait in horticultural plants. Tree peony ( ...

    Abstract Floral scent is an important and genetically complex trait in horticultural plants. Tree peony (
    Language English
    Publishing date 2022-11-07
    Publishing country England
    Document type Journal Article
    ISSN 2662-6810
    ISSN 2662-6810
    DOI 10.1093/hr/uhac253
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  8. Article: The combination of DNA methylation and positive regulation of anthocyanin biosynthesis by MYB and bHLH transcription factors contributes to the petal blotch formation in Xibei tree peony.

    Zhu, Jin / Wang, Yizhou / Wang, Qianyu / Li, Bing / Wang, Xiaohan / Zhou, Xian / Zhang, Hechen / Xu, Wenzhong / Li, Shanshan / Wang, Liangsheng

    Horticulture research

    2023  Volume 10, Issue 6, Page(s) uhad100

    Abstract: Xibei tree peony is a distinctive cultivar group that features red-purple blotches in petals. Interestingly, the pigmentations of blotches and non-blotches are largely independent of one another. The underlying molecular mechanism had attracted lots of ... ...

    Abstract Xibei tree peony is a distinctive cultivar group that features red-purple blotches in petals. Interestingly, the pigmentations of blotches and non-blotches are largely independent of one another. The underlying molecular mechanism had attracted lots of attention from investigators, but was still uncertain. Our present work demonstrates the factors that are closely related to blotch formation in
    Language English
    Publishing date 2023-05-19
    Publishing country England
    Document type Journal Article
    ISSN 2662-6810
    ISSN 2662-6810
    DOI 10.1093/hr/uhad100
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  9. Article ; Online: Functional identification of anthocyanin glucosyltransferase genes: a Ps3GT catalyzes pelargonidin to pelargonidin 3-O-glucoside painting the vivid red flower color of Paeonia.

    Wang, Qianyu / Zhu, Jin / Li, Bing / Li, Shanshan / Yang, Yong / Wang, Qingyun / Xu, Wenzhong / Wang, Liangsheng

    Planta

    2023  Volume 257, Issue 4, Page(s) 65

    Abstract: Main conclusion: Glycosylation from an anthocyanidin 3-O-glucosyltransferase Ps3GT (PsUGT78A27) facilitates the accumulation of pelargonidin 3-O-glucoside, which defines the vivid red flower color and occurs only in specific peony tree cultivars. ... ...

    Abstract Main conclusion: Glycosylation from an anthocyanidin 3-O-glucosyltransferase Ps3GT (PsUGT78A27) facilitates the accumulation of pelargonidin 3-O-glucoside, which defines the vivid red flower color and occurs only in specific peony tree cultivars. Although tree peony cultivars of Chinese and Japanese both originated from China, vivid red color is only found in flowers of Japanese cultivars but not of Chinese cultivar groups. In this study, a Japanese tree peony cultivar 'Taiyoh' with vivid red petals and a Chinese tree peony cultivar 'Hu Hong' with reddish pink petals were chosen as the experimental materials. Flavonoids profiling indicated that pelargonidin 3-O-glucoside (Pg3G) detected only in Japanese cultivar contributed to vivid red color of tree peony petals, while pelargonidin 3,5-di-O-glucoside (Pg3G5G) found in both of Japanese and Chinese cultivars was responsible for pink flower color. Through the integration of full-length transcriptome sequencing and in vitro enzymatic activity analysis, two anthocyanin glucosyltransferase genes PsUGT78A27 and PsUGT75L45 were isolated from the petals of tree peony, and their encoding products exhibited enzymatic activities of pelargonidin 3-O-glucosyltransferase and anthocyanin 5-O-glucosyltransferase, respectively. Further quantitative real-time PCR revealed that PsUGT78A27 displayed high expression in petals of both cultivars and PsUGT75L45 was expressed at high levels in cultivar 'Hu Hong' only. Using a gene gun technique, the GFP fusion proteins of PsUGT78A27 and PsUGT75L45 were visualized to be cytoplasmic and nuclear localization in the epidermal cells of tree peony petals, and the glucosylation function of PsUGT78A27 and PsUGT75L45 to alter petal color of tree peony and herbaceous peony had been directly validated in vivo. These results demonstrated that PsUGT78A27 and PsUGT75L45 are key players for the presence or absence of vivid red flower color in tree peony cultivars. Our findings further elucidated the chemical and molecular mechanism of petal pigmentation of Paeonia and could help breed the Paeonia cultivars possessing novel flower colors.
    MeSH term(s) Anthocyanins/metabolism ; Paeonia/genetics ; Plant Breeding ; Flowers/genetics ; Glucosides/metabolism ; Glucosyltransferases/metabolism ; Color
    Chemical Substances pelargonidin (7690-51-9) ; Anthocyanins ; Glucosides ; Glucosyltransferases (EC 2.4.1.-)
    Language English
    Publishing date 2023-02-24
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 208909-9
    ISSN 1432-2048 ; 0032-0935 ; 1866-2749
    ISSN (online) 1432-2048
    ISSN 0032-0935 ; 1866-2749
    DOI 10.1007/s00425-023-04095-2
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  10. Article ; Online: Phylogenomics and plastomics offer new evolutionary perspectives on Kalanchoideae (Crassulaceae).

    Han, Shiyun / Zhang, Sijia / Yi, Ran / Bi, De / Ding, Hengwu / Yang, Jianke / Ye, Yuanxin / Xu, Wenzhong / Wu, Longhua / Zhuo, Renying / Kan, Xianzhao

    Annals of botany

    2024  Volume 133, Issue 4, Page(s) 585–604

    Abstract: Background and aims: Kalanchoideae is one of three subfamilies within Crassulaceae and contains four genera. Despite previous efforts, the phylogeny of Kalanchoideae remains inadequately resolved with persistent issues including low support, ... ...

    Abstract Background and aims: Kalanchoideae is one of three subfamilies within Crassulaceae and contains four genera. Despite previous efforts, the phylogeny of Kalanchoideae remains inadequately resolved with persistent issues including low support, unstructured topologies and polytomies. This study aimed to address two central objectives: (1) resolving the pending phylogenetic questions within Kalanchoideae by using organelle-scale 'barcodes' (plastomes) and nuclear data; and (2) investigating interspecific diversity patterns among Kalanchoideae plastomes.
    Methods: To explore the plastome evolution in Kalanchoideae, we newly sequenced 38 plastomes representing all four constituent genera (Adromischus, Cotyledon, Kalanchoe and Tylecodon). We performed comparative analyses of plastomic features, including GC and gene contents, gene distributions at the IR (inverted repeat) boundaries, nucleotide divergence, plastomic tRNA (pttRNA) structures and codon aversions. Additionally, phylogenetic inferences were inferred using both the plastomic dataset (79 genes) and nuclear dataset (1054 genes).
    Key results: Significant heterogeneities were observed in plastome lengths among Kalanchoideae, strongly correlated with LSC (large single copy) lengths. Informative diversities existed in the gene content at SSC/IRa (small single copy/inverted repeat a), with unique patterns individually identified in Adromischus leucophyllus and one major Kalanchoe clade. The ycf1 gene was assessed as a shared hypervariable region among all four genera, containing nine lineage-specific indels. Three pttRNAs exhibited unique structures specific to Kalanchoideae and the genera Adromischus and Kalanchoe. Moreover, 24 coding sequences revealed a total of 41 lineage-specific unused codons across all four constituent genera. The phyloplastomic inferences clearly depicted internal branching patterns in Kalanchoideae. Most notably, by both plastid- and nuclear-based phylogenies, our research offers the first evidence that Kalanchoe section Eukalanchoe is not monophyletic.
    Conclusions: This study conducted comprehensive analyses on 38 newly reported Kalanchoideae plastomes. Importantly, our results not only reconstructed well-resolved phylogenies within Kalanchoideae, but also identified highly informative unique markers at the subfamily, genus and species levels. These findings significantly enhance our understanding of the evolutionary history of Kalanchoideae.
    MeSH term(s) Phylogeny ; Crassulaceae/genetics ; Plastids/genetics ; Biological Evolution ; Evolution, Molecular ; Genome, Plastid
    Language English
    Publishing date 2024-02-15
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1461328-1
    ISSN 1095-8290 ; 0305-7364
    ISSN (online) 1095-8290
    ISSN 0305-7364
    DOI 10.1093/aob/mcae017
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