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Influence of Ty3/gypsy and Ty1/copia LTR-retrotransposons on the large genomes of Alstroemeriaceae: genome landscape of Bomarea edulis (Tussac) Herb.
IF 2.5 3区 生物学
Protoplasma Pub Date : 2025-01-30 DOI: 10.1007/s00709-025-02036-2
Jéssica Nascimento, Mariela Sader, Tiago Ribeiro, Andrea Pedrosa-Harand
{"title":"Influence of Ty3/gypsy and Ty1/copia LTR-retrotransposons on the large genomes of Alstroemeriaceae: genome landscape of Bomarea edulis (Tussac) Herb.","authors":"Jéssica Nascimento, Mariela Sader, Tiago Ribeiro, Andrea Pedrosa-Harand","doi":"10.1007/s00709-025-02036-2","DOIUrl":"https://doi.org/10.1007/s00709-025-02036-2","url":null,"abstract":"<p><p>Repetitive elements are the main components of many plant genomes and play a crucial role in the variation of genome size and structure, ultimately impacting species diversification and adaptation. Alstroemeriaceae exhibits species with large genomes, not attributed to polyploidy. In this study, we analysed the repetitive fraction of the genome of Bomarea edulis through low-coverage sequencing and in silico characterization, and compared it to the repeats of Alstroemeria longistaminea, a species from a sister genus that has been previously characterized. LTR-retrotransposons were identified as the most abundant elements in the B. edulis genome (50.22%), with significant variations in abundance for specific lineages between the two species. The expansion of the B. edulis genome was likely due to three main lineages of LTR retrotransposons, Ty3/gypsy Tekay and Retand and Ty1/copia SIRE, all represented by truncated elements which were probably active in the past. Furthermore, the proportion of satDNA (~ 7%) was six times higher in B. edulis compared to A. longistaminea, with most families exhibiting a dispersed, uniform distribution in the genome. SatDNAs, thus, contributed to some extent to genome obesity. Despite diverging around 29 Mya, both species still share some satDNA families and retrotransposons. However, differences in repeat abundances and sequence variants led to genome differentiation despite their similar sizes and structure.</p>","PeriodicalId":20731,"journal":{"name":"Protoplasma","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143067523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphological, anatomical, and bioactive properties of Hypericum scabrum L.: effects on diabetes mellitus, Alzheimer's disease, and HDFa fibroblasts and U87-MG cancer cells.
IF 2.5 3区 生物学
Protoplasma Pub Date : 2025-01-30 DOI: 10.1007/s00709-025-02037-1
Sena Öner, Abdulrahim Kadı, Enes Tekman, Ayşe Cemre Kararenk, Elif Beyza Özer, Kübra Nalkıran Ergin, Hafize Yuca, Mehmet Enes Arslan, Resul Duman, Aydan Acar Şahin, Nur Münevver Pinar, Alptuğ Atila, Gülnur Ekşi Bona, Songül Karakaya
{"title":"Morphological, anatomical, and bioactive properties of Hypericum scabrum L.: effects on diabetes mellitus, Alzheimer's disease, and HDFa fibroblasts and U87-MG cancer cells.","authors":"Sena Öner, Abdulrahim Kadı, Enes Tekman, Ayşe Cemre Kararenk, Elif Beyza Özer, Kübra Nalkıran Ergin, Hafize Yuca, Mehmet Enes Arslan, Resul Duman, Aydan Acar Şahin, Nur Münevver Pinar, Alptuğ Atila, Gülnur Ekşi Bona, Songül Karakaya","doi":"10.1007/s00709-025-02037-1","DOIUrl":"https://doi.org/10.1007/s00709-025-02037-1","url":null,"abstract":"<p><p>Diabetes mellitus (DM) and cancer are multifactorial diseases with significant health consequences, and their relationship with aging makes them particularly challenging. Epidemiological data suggests that individuals with DM are more susceptible to certain cancers. This study examined the bioactive properties of Hypericum scabrum extracts, including methanol, hexane, and others, focusing on their inhibitory effects on key enzymes associated with DM and neurodegenerative diseases, such as acetylcholinesterase, butyrylcholinesterase, α-amylase, and α-glucosidase. Additionally, the impact of these extracts on human fibroblast (HDFa) and glioblastoma (U87MG) cancer cells was evaluated. The methanol extract was analyzed for elemental composition using ICP-MS, secondary metabolites, and amino acids via LC-MS/MS and underwent morphological and anatomical characterization. The methanol extract demonstrated notable inhibitory activity, with an IC<sub>50</sub> value of < 1 µg/mL against α-glucosidase, surpassing acarbose in efficacy. The flower essential oil exhibited the highest inhibition (79.95%) of butyrylcholinesterase and the strongest acetylcholinesterase inhibition (21.62%). Elemental analysis revealed high concentrations of Na and K, while quinic acid and proline were identified as major metabolites, with proline concentrations reaching 494.0482 nmol/mL in the aerial part extract. The anticancer assays revealed higher cytotoxicity in U87MG glioblastoma cells compared to HDFa fibroblasts, suggesting potential applications for cancer therapy. The plant grows 20-50 cm tall, with yellow flowers and ovoid-ribbed capsules containing brown, reniform seeds. Its leaves are amphistomatic and ornamented, while stems feature striate cuticles and paracytic stomata. The pollen grains are microreticulate with syncolporate apertures. These results underscore the promising therapeutic potential of H. scabrum in managing DM, cancer, and neurodegenerative diseases, with its ability to inhibit key enzymes and show selective cytotoxicity against cancer cells.</p>","PeriodicalId":20731,"journal":{"name":"Protoplasma","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143067531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Typical tetra-mediated signaling and plant architectural changes regulate salt-stress tolerance in indica rice genotypes.
IF 2.5 3区 生物学
Protoplasma Pub Date : 2025-01-27 DOI: 10.1007/s00709-025-02035-3
Shivani Shivani, Rohit Ghosh, Adinpunya Mitra, Arpita Das, Joydeep Banerjee
{"title":"Typical tetra-mediated signaling and plant architectural changes regulate salt-stress tolerance in indica rice genotypes.","authors":"Shivani Shivani, Rohit Ghosh, Adinpunya Mitra, Arpita Das, Joydeep Banerjee","doi":"10.1007/s00709-025-02035-3","DOIUrl":"https://doi.org/10.1007/s00709-025-02035-3","url":null,"abstract":"<p><p>Upon exposure to salt stress, calcium signaling in plants activates various stress-responsive genes and proteins along with enhancement in antioxidant defense to eventually regulate the cellular homeostasis for reducing cytosolic sodium levels. The coordination among the calcium signaling molecules and transporters plays a crucial role in salinity tolerance. In the present study, twenty-one diverse indigenous rice genotypes were evaluated for salt tolerance during the early seedling stage, and out of that nine genotypes were further selected for physio-biochemical study. Further analysis identified potential salt-tolerant and salt-sensitive genotypes with tolerant lines exhibiting lower Na<sup>+</sup>/K<sup>+</sup> ratio. Plant phenotype clearly documented the root architectural changes among the most salt-tolerant and sensitive genotypes, while the histo-biochemical DAB and NBT staining and in-gel SOD activity clearly revealed the differential ROS accumulation between the contrasting genotypes and their antioxidant activity. Ultrastructural study depicted stronger UV autofluorescence in the hypodermal and vascular bundle regions, while phloroglucinol staining displayed intense coloration in the vascular bundle region of Bhutmuri, the salt-tolerant genotype, compared to Manipuri Black, the salt-sensitive one showing differential lignification among the contrasting genotype to combat salt stress. Based on expression study, our proposed model depicted immediate upregulation (short-term) of OsSOS3 and OsNHX1 along with gradual upregulation of OsHKT and downregulation of OsSOS1 throughout the stress period to protect the tolerant plant through signaling cascade, while the inadequate upregulation of OsSOS3, OsNHX1, and OsHKT under early stress, coupled with poor coordination between the expression of OsSOS1 and OsSOS3 genes, makes the plant salt sensitive.</p>","PeriodicalId":20731,"journal":{"name":"Protoplasma","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143053425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Elucidating the wedelolactone biosynthesis pathway from Eclipta prostrata (L.) L.: a comprehensive analysis integrating de novo comparative transcriptomics, metabolomics, and molecular docking of targeted proteins.
IF 2.5 3区 生物学
Protoplasma Pub Date : 2025-01-23 DOI: 10.1007/s00709-025-02030-8
Anjum Bano, Archana Kumari, Akansha Pandey, Akhilesh Kumar, Mallika Madan, Anshu Mohanta, Emma Anjali Minj, Tushar Pandey, Sanjeev Kanojiya, Richa Pandey, Rakesh Kumar Shukla, Vineeta Tripathi
{"title":"Elucidating the wedelolactone biosynthesis pathway from Eclipta prostrata (L.) L.: a comprehensive analysis integrating de novo comparative transcriptomics, metabolomics, and molecular docking of targeted proteins.","authors":"Anjum Bano, Archana Kumari, Akansha Pandey, Akhilesh Kumar, Mallika Madan, Anshu Mohanta, Emma Anjali Minj, Tushar Pandey, Sanjeev Kanojiya, Richa Pandey, Rakesh Kumar Shukla, Vineeta Tripathi","doi":"10.1007/s00709-025-02030-8","DOIUrl":"https://doi.org/10.1007/s00709-025-02030-8","url":null,"abstract":"<p><p>Eclipta prostrata belongs to the Asteraceae family. The plant contains bioactive compounds like wedelolactone (WDL) and demethylwedelolactone (DW). Its transcriptomic information engaged with secondary metabolite biosynthesis is not available. Based on differential accumulation of WDL and DW in root, shoot of the mature plant, we performed comparative de novo transcriptome of root and shoot tissue in three independent biological replicates and generated 49820 unique transcripts. Annotation resulted in significant matches for 43,015 unigenes. Based on differential gene expression data, we found WDL biosynthesis-related transcripts, which were mainly upregulated in shoot. Finally, 13 selected differentially expressed transcripts related to WDL biosynthesis that were validated by qRT-PCR. Detailed tissue-specific metabolite and transcript profiling revealed that DW highly accumulated in root and WDL accumulation was high in aerial part along with transcripts. For WDL pathway exploration, we did integrated profiling of 08 metabolites and 13 transcripts and witnessed that only naringenin, apigenin, DW, and WDL were detected in different developmental stages. Taking leads from the findings, we postulated that naringenin to apigenin pathway is one potential route for WDL biosynthesis. Moreover, wound stress led to accumulation of DW and WDL and related biosynthetic transcripts. Furthermore, the selected enzymes were subjected to molecular docking and binding studies for the predicted substrates involved in crucial and advance steps of WDL biosynthesis. A comprehensive analysis integrating de novo transcriptomics, metabolomics, and molecular docking of targeted proteins paves the way for the elucidation of the putative wedelolactone biosynthesis pathway from E. prostrata.</p>","PeriodicalId":20731,"journal":{"name":"Protoplasma","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143024384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Successful application of microspore culture by adding kinetin and methylene blue to improve microspore embryogenesis in Chinese kale breeding. 添加动蛋白和亚甲基蓝促进小孢子胚发生在芥蓝育种中的成功应用。
IF 2.5 3区 生物学
Protoplasma Pub Date : 2025-01-22 DOI: 10.1007/s00709-025-02032-6
Haonan Li, Zhe Wang, Weina Zhou, Jinyan Li, Zifan Zhao, Chao Zheng, Zhiyong Liu, Yun Zhang
{"title":"Successful application of microspore culture by adding kinetin and methylene blue to improve microspore embryogenesis in Chinese kale breeding.","authors":"Haonan Li, Zhe Wang, Weina Zhou, Jinyan Li, Zifan Zhao, Chao Zheng, Zhiyong Liu, Yun Zhang","doi":"10.1007/s00709-025-02032-6","DOIUrl":"https://doi.org/10.1007/s00709-025-02032-6","url":null,"abstract":"<p><p>Microspore culture is an efficient and rapid method that produces doubled haploid (DH) lines for hybrid breeding in crops and vegetables. However, the low frequency of microspore embryogenesis and spontaneous diploidization in Chinese kale still require improvement. In the present work, an efficient microspore culture protocol was constructed and used for DH producing in Chinese kale breeding. The results showed that kinetin (KT) and methylene blue (MB) improved microspore embryogenesis and embryo development. The spontaneous diploidization rates were below 14.48%. Therefore, artificial doubling was used for haploids; the doubled haploid rate was significantly increased, and the highest doubling rate reached 33.75% with pendimethalin. 98 DH lines were obtained in this study. This study also identified the horticultural characters of the DH lines, which showed significant differences between them. All DH lines were self-incompatible. The hybrid crosses were performed using five DH lines selected for the Chinese kale breeding. This study was helpful to accelerate the application of microspore culture and provide DH lines for Chinese kale hybrid breeding.</p>","PeriodicalId":20731,"journal":{"name":"Protoplasma","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143010567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphology, histochemistry and ultrastructure of the floral glandular trichomes in three Doronicum species (Asteraceae). 三种龙葵属植物花腺毛的形态、组织化学和超微结构。
IF 2.5 3区 生物学
Protoplasma Pub Date : 2025-01-21 DOI: 10.1007/s00709-025-02033-5
Lyudmila E Muravnik, Olga V Kostina, Anna A Mosina
{"title":"Morphology, histochemistry and ultrastructure of the floral glandular trichomes in three Doronicum species (Asteraceae).","authors":"Lyudmila E Muravnik, Olga V Kostina, Anna A Mosina","doi":"10.1007/s00709-025-02033-5","DOIUrl":"https://doi.org/10.1007/s00709-025-02033-5","url":null,"abstract":"<p><p>Previously, it was found that four types of glandular trichomes (GTs) are developed on the surface of all aerial organs in Doronicum species. A detailed study of leaves had shown that only two types of GTs form in them. Nothing was known about any differences of GTs on vegetative and reproductive organs. Current work studies morphological, histochemical and ultrastructural features of two types of GTs arising on floral elements in three Doronicum species. The straight GTs there are on all elements of the inflorescence (peduncle, phyllaries, ray and disk florets); they have a short stalk and do not have a clearly visible head. The capitate GTs are located only on the inflorescence peduncle and phyllaries; the trichomes form a long stalk and a distinct head. The chemical composition of the secretion is confirmed by histochemical reactions. Both types of GTs have the specific ultrastructural features and secretory mechanisms. In capitate GTs, a smooth endoplasmic reticulum is the main organelle of cytoplasm and takes part in a synthesis of the phenolic substances. Phenols accumulate in the numerous small vacuoles and thick cell wall. In straight trichomes, leucoplasts of various shapes with plastoglobuli and peripheral reticulum predominate. Terpenes synthesized in leucoplasts are stored in the subcuticular cavity and are released when the cavity ruptures. The acidic polysaccharides are the additional components of a straight trichome secretion. The studied species of Doronicum differ from each other in localization, size and structure of the GTs.</p>","PeriodicalId":20731,"journal":{"name":"Protoplasma","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143010565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genome-wide association mapping for stay-green and stem reserve mobilization traits in wheat (Triticum aestivum L.) under combined heat and drought stress. 干热复合胁迫下小麦保持绿色性状和茎储备动员性状的全基因组关联图谱
IF 2.5 3区 生物学
Protoplasma Pub Date : 2025-01-14 DOI: 10.1007/s00709-025-02031-7
Animireddy China Malakondaiah, Ajay Arora, Hari Krishna, Sukumar Taria, Sudhir Kumar, Narayana Bhat Devate, Jasdeep Chatrath Padaria, Sekar Kousalya, Sahana Police Patil, Pradeep Kumar Singh
{"title":"Genome-wide association mapping for stay-green and stem reserve mobilization traits in wheat (Triticum aestivum L.) under combined heat and drought stress.","authors":"Animireddy China Malakondaiah, Ajay Arora, Hari Krishna, Sukumar Taria, Sudhir Kumar, Narayana Bhat Devate, Jasdeep Chatrath Padaria, Sekar Kousalya, Sahana Police Patil, Pradeep Kumar Singh","doi":"10.1007/s00709-025-02031-7","DOIUrl":"https://doi.org/10.1007/s00709-025-02031-7","url":null,"abstract":"<p><p>Stay-green (SG) and stem reserve mobilization (SRM) are two significant mutually exclusive traits, which contributes to grain-filling during drought and heat stress in wheat. The current research was conducted in a genome-wide association study (GWAS) panel consisting of 278 wheat genotypes of advanced breeding lines to find the markers linked with SG and SRM traits and also to screen the superior genotypes. SG and SRM traits, viz. soil plant analysis development (SPAD) value, canopy temperature (CT), normalized difference vegetation index (NDVI), leaf senescence rate (LSR) and stem reserve mobilization efficiency (SRE) were recorded. The trial was conducted in α-lattice design, under control and combined heat and drought stress (HD). Analysis of variance and descriptive statistics showed a significant difference across the evaluated traits. The highest mean of SRE (31.7%) and SRM (0.42 g/stem) was reported in HD, while highest SRE in HD and lowest in control was 52.56% and 15.7%, respectively. Genotyping was carried out using the 35 K Axiom R Wheat Breeder's Array, 14,625 SNPs were kept after filtering. Through GWAS, 36 significant marker trait associations (MTAs) were identified on 16 distinct chromosomes; out of this, 22 MTAs were found under control and 14 MTAs under HD. Candidate genes that code for UDP-glycosyltransferase 73C4-like and protein detoxification 40-like was linked to SPAD and CT respectively. One MTAs was detected for SRM on chromosome 6B that code for wall associated receptor kinase 4 like. These SNPs can be utilized to generate cultivars that adapt to climate change by a marker-assisted gene transfer.</p>","PeriodicalId":20731,"journal":{"name":"Protoplasma","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142979791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural considerations and differences between leaf canals and secretory cavities in Asteraceae. 菊科植物叶管和分泌腔的结构考虑及其差异。
IF 2.5 3区 生物学
Protoplasma Pub Date : 2025-01-14 DOI: 10.1007/s00709-024-02028-8
Daniel M Martínez-Quezada, Alicia Rojas-Leal, José Luis Villaseñor, Teresa Terrazas
{"title":"Structural considerations and differences between leaf canals and secretory cavities in Asteraceae.","authors":"Daniel M Martínez-Quezada, Alicia Rojas-Leal, José Luis Villaseñor, Teresa Terrazas","doi":"10.1007/s00709-024-02028-8","DOIUrl":"https://doi.org/10.1007/s00709-024-02028-8","url":null,"abstract":"<p><p>Secretory canals are distributed among seed plants, and their diversity is concentrated in many families of angiosperms, while other internal secretory structures such as secretory cavities have been identified only in Rutaceae, Myrtaceae, and Asteraceae. Identifying and recognizing these two types of secretory structures has been complicated, mainly due to their structural similarities. In this study, the ontogeny of canals and secretory cavities in two species of Asteraceae are described and compared, to understand the structural differences between them and allow the establishment of more appropriate homology hypotheses. Leaves of Bidens odorata and Tagetes tenuifolia in different stages of development, including the apex of the stems, were collected. The samples were processed using the methacrylate technique, and longitudinal and transverse sections were made. The development of both, canals and secretory cavities, is schizogenous, in contrast to what was previously reported for other families such as Rutaceae, where they are reported as lysigenous. In Asteraceae, canals originate from cells of the procambium while cavities originate from cells of the ground meristem. The structural and developmental similarities between both types of secretory structures allow us to infer that they have a close evolutionary origin. Canals and secretory cavities in Asteraceae can be differentiated based on the number of strata of secretory epithelium and sheath, the modifications of epidermal cells and mesophyll, and the type of promeristem that gives rise to them. Probably extravascular canals give rise to cavities in leaves of Asteraceae and probably in other plant families.</p>","PeriodicalId":20731,"journal":{"name":"Protoplasma","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142979795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
New nucleolin-containing cytoplasmic bodies in an archamoebian protist Pelomyxa belevskii (Amoebozoa, Archamoebae, Pelobiontida). 古变形虫原生动物 Pelomyxa belevskii(变形虫纲、古变形虫目、天牛目)中新出现的含核素的细胞质体。
IF 2.5 3区 生物学
Protoplasma Pub Date : 2025-01-13 DOI: 10.1007/s00709-024-02017-x
Dmitry S Bogolyubov, Ludmila V Chistyakova, Alexandra O Travina, Maksim I Sulatsky, Andrew V Goodkov
{"title":"New nucleolin-containing cytoplasmic bodies in an archamoebian protist Pelomyxa belevskii (Amoebozoa, Archamoebae, Pelobiontida).","authors":"Dmitry S Bogolyubov, Ludmila V Chistyakova, Alexandra O Travina, Maksim I Sulatsky, Andrew V Goodkov","doi":"10.1007/s00709-024-02017-x","DOIUrl":"https://doi.org/10.1007/s00709-024-02017-x","url":null,"abstract":"<p><p>The representatives of the archamoebian genus Pelomyxa are amoeboid anaerobic protists that inhabit fresh-water anoxic sediments, and most of them are usually multinucleate. The cytoplasm of these unicellular organisms is highly complicated and contains numerous vacuoles of different types, as well as a wide range of prokaryotic endocytobionts, agglomerations of glycogen, lipids, etc. Among the great variety of cytoplasmic structures in P. belevskii, we identified novel organelles termed Cytoplasmic Nucleolin-Rich Bodies (CNRBs) due to their enrichment in nucleolin, a nuclear/nucleolar protein. The P. belevskii CNRBs differ significantly from known cytoplasmic nucleolin-related organelles encountered in some other eukaryotic cells, but their biological significance remains elusive. The work also provides the first description of the nuclear organization of P. belevskii. The nucleolar apparatus of P. belevskii contains little nucleolin, as determined by quantitative electron microscopic data, suggesting that it is inactive despite its morphological complexity. The presence of CNRBs in Pelomyxa is discussed in the context of the specific habitat conditions and biology of these unicellular eukaryotes.</p>","PeriodicalId":20731,"journal":{"name":"Protoplasma","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142979794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Vindoline is a key component of Catharanthus roseus leaf juice extract prepared through an Ayurveda-based method for ameliorating insulin-resistant type 2 diabetes. 长春花碱是一种关键成分的玫瑰花叶提取物制备通过阿育吠陀为基础的方法,改善胰岛素抵抗型2型糖尿病。
IF 2.5 3区 生物学
Protoplasma Pub Date : 2025-01-11 DOI: 10.1007/s00709-024-02026-w
Pooja Singh, Dewasya P Singh, Manish K Patel, Monika Binwal, Amit Kaushik, Maneesha Mall, Mridula Sahu, Puja Khare, Karuna Shanker, Dnyaneshwar U Bawankule, Velusamy Sundaresan, Daya N Mani, Ashutosh K Shukla
{"title":"Vindoline is a key component of Catharanthus roseus leaf juice extract prepared through an Ayurveda-based method for ameliorating insulin-resistant type 2 diabetes.","authors":"Pooja Singh, Dewasya P Singh, Manish K Patel, Monika Binwal, Amit Kaushik, Maneesha Mall, Mridula Sahu, Puja Khare, Karuna Shanker, Dnyaneshwar U Bawankule, Velusamy Sundaresan, Daya N Mani, Ashutosh K Shukla","doi":"10.1007/s00709-024-02026-w","DOIUrl":"https://doi.org/10.1007/s00709-024-02026-w","url":null,"abstract":"<p><p>Catharanthus roseus leaves have been traditionally described to possess potent antidiabetic activity and some leaf-specific alkaloids, including vindoline, have been studied for their antidiabetic potential. The aim of the present study was to validate the antidiabetic property of the plant with special reference to vindoline. An Ayurveda-based method was used to prepare the Swaras [leaf juice extract (LJE)] of three familial C. roseus genotypes differing in their vindoline content [CIM-Sushil (CS) > Dhawal (D) > Nirmal (N)]. In vivo experiments using LJE were performed in Charles Foster rats, whereby metformin (M100, 100 mg/kg BW) and vindoline (V20, 20 mg/kg BW) were used for comparison. OGTT-based screening for LJE doses (N100, N300, N500, D100, D200, D300, CS100, CS200, CS300 mg/kg BW) was carried out. Further analysis of the effective doses (D100, D200, D300, CS100, CS200, CS300) in streptozotocin-induced diabetic rats indicated highest blood glucose depletion in D300 (52.51%) and CS200 (64.55%) together with V20 (56.96%) on the 14th day. CS-LJE was found to be safe up to 2000 mg/kg BW. The role of LJE/vindoline in maintaining glucose homeostasis in liver was found to be mediated through the expression of insulin pathway genes (IRS-1, PI3K, AKT, GLUT2). TNF-α-induced insulin resistance in L6 skeletal muscle cells was used to analyze the effect of LJE/vindoline through glucose uptake assay and expression analysis of insulin pathway genes (IRS-1, PI3K, AKT, GLUT4). The results indicated that the antidiabetic effect of LJE/vindoline is mediated through activation of IRS/PI3K/AKT/GLUT signaling pathway.</p>","PeriodicalId":20731,"journal":{"name":"Protoplasma","volume":" ","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142966549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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