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Serine metabolism contributes to cell survival by regulating extracellular pH and providing an energy source in Saccharomyces cerevisiae. 在酿酒酵母中,丝氨酸代谢通过调节细胞外pH值和提供能量来源来促进细胞存活。
IF 2.6 4区 生物学
Yeast Pub Date : 2023-02-01 DOI: 10.1002/yea.3840
Arisa Kawamukai, Ayana Iwano, Momoka Shibata, Yuko Kishi, Akira Matsuura
{"title":"Serine metabolism contributes to cell survival by regulating extracellular pH and providing an energy source in Saccharomyces cerevisiae.","authors":"Arisa Kawamukai,&nbsp;Ayana Iwano,&nbsp;Momoka Shibata,&nbsp;Yuko Kishi,&nbsp;Akira Matsuura","doi":"10.1002/yea.3840","DOIUrl":"https://doi.org/10.1002/yea.3840","url":null,"abstract":"<p><p>Changes in extracellular pH affect the homeostasis and survival of unicellular organisms. Supplementation of culture media with amino acids can extend the lifespan of budding yeast, Saccharomyces cerevisiae, by alleviating the decrease in pH. However, the optimal amino acids to use to achieve this end, and the underlying mechanisms involved, remain unclear. Here, we describe the specific role of serine metabolism in the regulation of pH in a medium. The addition of serine to synthetic minimal medium suppressed acidification, and at higher doses increased the pH. CHA1, which encodes a catabolic serine hydratase that degrades serine into ammonium and pyruvate, is essential for serine-mediated alleviation of acidification. Moreover, serine metabolism supports extra growth after glucose depletion. Therefore, medium supplementation with serine can play a prominent role in the batch culture of budding yeast, controlling extracellular pH through catabolism into ammonium and acting as an energy source after glucose exhaustion.</p>","PeriodicalId":23870,"journal":{"name":"Yeast","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9449064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
Heterologous expression reveals unique properties of Trk K+ importers from nonconventional biotechnologically relevant yeast species together with their potential to support Saccharomyces cerevisiae growth. 异源表达揭示了来自非传统生物技术相关酵母菌种的Trk +进口商的独特特性,以及它们支持酿酒酵母生长的潜力。
IF 2.6 4区 生物学
Yeast Pub Date : 2023-02-01 DOI: 10.1002/yea.3834
Klára Papoušková, Marcos Gómez, Marie Kodedová, José Ramos, Olga Zimmermannová, Hana Sychrová
{"title":"Heterologous expression reveals unique properties of Trk K<sup>+</sup> importers from nonconventional biotechnologically relevant yeast species together with their potential to support Saccharomyces cerevisiae growth.","authors":"Klára Papoušková,&nbsp;Marcos Gómez,&nbsp;Marie Kodedová,&nbsp;José Ramos,&nbsp;Olga Zimmermannová,&nbsp;Hana Sychrová","doi":"10.1002/yea.3834","DOIUrl":"https://doi.org/10.1002/yea.3834","url":null,"abstract":"<p><p>In the model yeast Saccharomyces cerevisiae, Trk1 is the main K<sup>+</sup> importer. It is involved in many important physiological processes, such as the maintenance of ion homeostasis, cell volume, intracellular pH, and plasma-membrane potential. The ScTrk1 protein can be of great interest to industry, as it was shown that changes in its activity influence ethanol production and tolerance in S. cerevisiae and also cell performance in the presence of organic acids or high ammonium under low K<sup>+</sup> conditions. Nonconventional yeast species are attracting attention due to their unique properties and as a potential source of genes that encode proteins with unusual characteristics. In this work, we aimed to study and compare Trk proteins from Debaryomyces hansenii, Hortaea werneckii, Kluyveromyces marxianus, and Yarrowia lipolytica, four biotechnologically relevant yeasts that tolerate various extreme environments. Heterologous expression in S. cerevisiae cells lacking the endogenous Trk importers revealed differences in the studied Trk proteins' abilities to support the growth of cells under various cultivation conditions such as low K<sup>+</sup> or the presence of toxic cations, to reduce plasma-membrane potential or to take up Rb<sup>+</sup> . Examination of the potential of Trks to support the stress resistance of S. cerevisiae wild-type strains showed that Y. lipolytica Trk1 is a promising tool for improving cell tolerance to both low K<sup>+</sup> and high salt and that the overproduction of S. cerevisiae's own Trk1 was the most efficient at improving the growth of cells in the presence of highly toxic Li<sup>+</sup> ions.</p>","PeriodicalId":23870,"journal":{"name":"Yeast","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9087968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
The Brazilian Amazonian rainforest harbors a high diversity of yeasts associated with rotting wood, including many candidates for new yeast species. 巴西亚马逊雨林蕴藏着与腐烂木材相关的多种多样的酵母,包括许多新酵母物种的候选者。
IF 2.6 4区 生物学
Yeast Pub Date : 2023-02-01 DOI: 10.1002/yea.3837
Katharina O Barros, Flávia B M Alvarenga, Giulia Magni, Gisele F L Souza, Maxwel A Abegg, Fernanda Palladino, Sílvio S da Silva, Rita C L B Rodrigues, Trey K Sato, Chris Todd Hittinger, Carlos A Rosa
{"title":"The Brazilian Amazonian rainforest harbors a high diversity of yeasts associated with rotting wood, including many candidates for new yeast species.","authors":"Katharina O Barros,&nbsp;Flávia B M Alvarenga,&nbsp;Giulia Magni,&nbsp;Gisele F L Souza,&nbsp;Maxwel A Abegg,&nbsp;Fernanda Palladino,&nbsp;Sílvio S da Silva,&nbsp;Rita C L B Rodrigues,&nbsp;Trey K Sato,&nbsp;Chris Todd Hittinger,&nbsp;Carlos A Rosa","doi":"10.1002/yea.3837","DOIUrl":"https://doi.org/10.1002/yea.3837","url":null,"abstract":"<p><p>This study investigated the diversity of yeast species associated with rotting wood in Brazilian Amazonian rainforests. A total of 569 yeast strains were isolated from rotting wood samples collected in three Amazonian areas (Universidade Federal do Amazonas-Universidade Federal do Amazonas [UFAM], Piquiá, and Carú) in the municipality of Itacoatiara, Amazon state. The samples were cultured in yeast nitrogen base (YNB)-d-xylose, YNB-xylan, and sugarcane bagasse and corncob hemicellulosic hydrolysates (undiluted and diluted 1:2 and 1:5). Sugiyamaella was the most prevalent genus identified in this work, followed by Kazachstania. The most frequently isolated yeast species were Schwanniomyces polymorphus, Scheffersomyces amazonensis, and Wickerhamomyces sp., respectively. The alpha diversity analyses showed that the dryland forest of UFAM was the most diverse area, while the floodplain forest of Carú was the least. Additionally, the difference in diversity between UFAM and Carú was the highest among the comparisons. Thirty candidates for new yeast species were obtained, representing 36% of the species identified and totaling 101 isolates. Among them were species belonging to the clades Spathaspora, Scheffersomyces, and Sugiyamaella, which are recognized as genera with natural xylose-fermenting yeasts that are often studied for biotechnological and ecological purposes. The results of this work showed that rotting wood collected from the Amazonian rainforest is a tremendous source of diverse yeasts, including candidates for new species.</p>","PeriodicalId":23870,"journal":{"name":"Yeast","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9072928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 6
Issue Information 问题信息
IF 2.6 4区 生物学
Yeast Pub Date : 2023-02-01 DOI: 10.1111/mila.12424
{"title":"Issue Information","authors":"","doi":"10.1111/mila.12424","DOIUrl":"https://doi.org/10.1111/mila.12424","url":null,"abstract":"No abstract is available for this article.","PeriodicalId":23870,"journal":{"name":"Yeast","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47434058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Linoleic acid functions as a quorum-sensing molecule in Monascus purpureus-Saccharomyces cerevisiae co-culture. 亚油酸作为群体感应分子在红曲霉与酿酒酵母共培养中的作用。
IF 2.6 4区 生物学
Yeast Pub Date : 2023-01-01 DOI: 10.1002/yea.3831
Ruoyu Shi, Pengfei Gong, Yutong Liu, Qiaoqiao Luo, Wei Chen, Chengtao Wang
{"title":"Linoleic acid functions as a quorum-sensing molecule in Monascus purpureus-Saccharomyces cerevisiae co-culture.","authors":"Ruoyu Shi,&nbsp;Pengfei Gong,&nbsp;Yutong Liu,&nbsp;Qiaoqiao Luo,&nbsp;Wei Chen,&nbsp;Chengtao Wang","doi":"10.1002/yea.3831","DOIUrl":"https://doi.org/10.1002/yea.3831","url":null,"abstract":"<p><p>When Monascus purpureus was co-cultured with Saccharomyces cerevisiae, we noted significant changes in the secondary metabolism and morphological development of Monascus. In yeast co-culture, although the pH was not different from that of a control, the Monascus mycelial biomass increased during fermentation, and the Monacolin K yield was significantly enhanced (up to 58.87% higher). However, pigment production did not increase. Co-culture with S. cerevisiae significantly increased the expression levels of genes related to Monacolin K production (mokA-mokI), especially mokE, mokF, and mokG. Linoleic acid, that has been implicated in playing a regulating role in the secondary metabolism and morphology of Monascus, was hypothesized to be the effector. Linoleic acid was detected in the co-culture, and its levels changed during fermentation. Addition of linoleic acid increased Monacolin K production and caused similar morphological changes in Monascus spores and mycelia. Exogenous linoleic acid also significantly upregulated the transcription levels of all nine genes involved in the biosynthesis of Monacolin K (up to 69.50% higher), consistent with the enhanced Monacolin K yield. Taken together, our results showed the effect of S. cerevisiae co-culture on M. purpureus and suggested linoleic acid as a specific quorum-sensing molecule in Saccharomyces-Monascus co-culture.</p>","PeriodicalId":23870,"journal":{"name":"Yeast","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9087956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2
Da Vinci's yeast: Blastobotrys davincii f.a., sp. nov. 达氏酵母:达氏芽管酵母。
IF 2.6 4区 生物学
Yeast Pub Date : 2023-01-01 DOI: 10.1002/yea.3816
Cobus M Visagie, Teun Boekhout, Bart Theelen, Jan Dijksterhuis, Neriman Yilmaz, Keith A Seifert
{"title":"Da Vinci's yeast: Blastobotrys davincii f.a., sp. nov.","authors":"Cobus M Visagie,&nbsp;Teun Boekhout,&nbsp;Bart Theelen,&nbsp;Jan Dijksterhuis,&nbsp;Neriman Yilmaz,&nbsp;Keith A Seifert","doi":"10.1002/yea.3816","DOIUrl":"https://doi.org/10.1002/yea.3816","url":null,"abstract":"<p><p>A new species of the yeast genus Blastobotrys was discovered during a worldwide survey of culturable xerophilic fungi in house dust. Several culture-dependent and independent studies from around the world detected the same species from a wide range of substrates including indoor air, cave wall paintings, bats, mummies, and the iconic self-portrait of Leonardo da Vinci from ca 1512. However, none of these studies identified their strains, clones, or OTUs as Blastobotrys. We introduce the new species as Blastobotrys davincii f.a., sp. nov. (holotype CBS H-24879) and delineate it from other species using morphological, phylogenetic, and physiological characters. The new species of asexually (anamorphic) budding yeast is classified in Trichomonascaceae and forms a clade along with its associated sexual state genus Trichomonascus. Despite the decade-old requirement to use a single generic name for fungi, both names are still used. Selection of the preferred name awaits a formal nomenclatural proposal. We present arguments for adopting Blastobotrys over Trichomonascus and introduce four new combinations as Blastobotrys allociferrii (≡ Candida allociferrii), B. fungorum (≡ Sporothrix fungorum), B. mucifer (≡ Candida mucifera), and Blastobotrys vanleenenianus (≡ Trichomonascus vanleenenianus). We provide a nomenclatural review and an accepted species list for the 37 accepted species in the Blastobotrys/Trichomonascus clade. Finally, we discuss the identity of the DNA clones detected on the da Vinci portrait, and the importance of using appropriate media to isolate xerophilic or halophilic fungi.</p>","PeriodicalId":23870,"journal":{"name":"Yeast","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/63/e4/YEA-40-7.PMC10108157.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9318776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Issue Information 问题信息
IF 2.6 4区 生物学
Yeast Pub Date : 2023-01-01 DOI: 10.1002/yea.3715
{"title":"Issue Information","authors":"","doi":"10.1002/yea.3715","DOIUrl":"https://doi.org/10.1002/yea.3715","url":null,"abstract":"No abstract is available for this article.","PeriodicalId":23870,"journal":{"name":"Yeast","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47115540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Construction and evaluation of gRNA arrays for multiplex CRISPR-Cas9. 多重CRISPR-Cas9的gRNA阵列构建及评价
IF 2.6 4区 生物学
Yeast Pub Date : 2023-01-01 Epub Date: 2023-01-06 DOI: 10.1002/yea.3833
Gašper Žun, Katja Doberšek, Uroš Petrovič
{"title":"Construction and evaluation of gRNA arrays for multiplex CRISPR-Cas9.","authors":"Gašper Žun, Katja Doberšek, Uroš Petrovič","doi":"10.1002/yea.3833","DOIUrl":"10.1002/yea.3833","url":null,"abstract":"<p><p>Endonuclease system CRISPR-Cas9 represents a powerful toolbox for the budding yeast's Saccharomyces cerevisiae genome perturbation. The resulting double-strand breaks are preferentially repaired via highly efficient homologous recombination, which subsequently leads to marker-free genome editing. The goal of this study was to evaluate precise targeting of multiple loci simultaneously. To construct an array of independently expressing guide RNAs (gRNAs), the genes encoding them were assembled through a BioBrick construction procedure. We designed a multiplex CRISPR-Cas9 system for targeting 6 marker genes, whereby the gRNA array was expressed from a single plasmid. To evaluate the performance of the gRNA array, the activity of the designed system was assessed by the success rate of the introduction of perturbations within the target loci: successful gRNA expression, followed by target DNA double-strand breaks formation and their repair by homologous recombination led to premature termination of the coding sequence of the marker genes, resulting in the prevention of growth of the transformants on the corresponding selection media. In conclusion, we successfully introduced up to five simultaneous perturbations within single cells of yeast S. cerevisiae using the multiplex CRISPR-Cas9 system. While this has been done before, we here present an alternative sequential BioBrick assembly with the capability to accommodate many highly similar gRNA-expression cassettes, and an exhaustive evaluation of their performance.</p>","PeriodicalId":23870,"journal":{"name":"Yeast","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/77/8e/YEA-40-32.PMC10107897.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9375825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Issue Information 问题信息
IF 2.6 4区 生物学
Yeast Pub Date : 2023-01-01 DOI: 10.1002/yea.3714
{"title":"Issue Information","authors":"","doi":"10.1002/yea.3714","DOIUrl":"https://doi.org/10.1002/yea.3714","url":null,"abstract":"No abstract is available for this article.","PeriodicalId":23870,"journal":{"name":"Yeast","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48547021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Leonardo da Vinci, Universal Genius. 莱昂纳多·达·芬奇,宇宙天才。
IF 2.6 4区 生物学
Yeast Pub Date : 2023-01-01 DOI: 10.1002/yea.3832
Giuseppina Mussari
{"title":"Leonardo da Vinci, Universal Genius.","authors":"Giuseppina Mussari","doi":"10.1002/yea.3832","DOIUrl":"https://doi.org/10.1002/yea.3832","url":null,"abstract":"Leonardo da Vinci was born in Anchiano, a small village near Vinci on 15 April 1452, the natural son of the notary Piero and a certain Caterina. His status as an illegitimate child prevented him from attending regular courses of study and entering the notary's career. His training thus took place within the walls of his home and in the Tuscan countryside, where the young Leonardo was able to learn directly from nature and develop, free from conditioning and impositions, his personal experimental method. At the age of 18, he began his apprenticeship in Florence, in the prestigious workshop of Andrea del Verrocchio, and in 1472 he was enroled as an independent artist in the Compagnia di San Luca, the guild of Florentine painters. The Annunciation (Florence, Uffizi), the Adoration of the Magi (Florence, Uffizi) and the Portrait of Ginevra Benci (New York, Metropolitan) date from this period. In 1482 he moved to Milan, to the court of Ludovico Sforza, where he stayed for 18 years, carrying out prestigious undertakings as painter, sculptor, architect, town planner, civil and military engineer and director of official ceremonies. Here he produced his most celebrated works, such as theVirgin of the Rocks (Paris, Louvre), the Lady of the Ermine in Krakow and the Belle Ferronière in the Louvre, and between 1494 and 1498, the Last Supper in the convent of Santa Maria delle Grazie in Milan. In 1502, he followed Cesare Borgia's military campaigns in Emilia, Marches, Umbria and Tuscany, and in 1503 he received the commission for the Battle of Anghiari from the Florentine government for the new hall of the Grand Council in the Palazzo della Signoria; on the opposite wall, Michelangelo worked on the Battle of Cascina. The Mona Lisa also dates from this time. He then returned to Milan, where he resumed his studies of science, mechanics and anatomy, but in 1513, with the return of the Sforza family to power, he took refuge in Rome, welcomed by Cardinal Giuliano dei Medici. Here, Raphael and Michelangelo were by then famous and sought after, and at the full height of their personal and mature artistic expression, Leonardo, excluded from the St. Peter's building site and the decoration of theVatican palaces, worked on the project to reclaim the Pontine Marshes and devoted himself to the study of anatomy and ancient ruins. In 1516, after the death of his protector, Giuliano de' Medici, Duke of Nemours, probably disappointed by the Roman environment and the reception given to him by the Pontiff, he decided to leave for France, entering the service of François I. As the king's first painter, he moved to Amboise, to the Château Clos Lucé, placed at his disposal by the French sovereign, where he died on 2 May 1519. He leaves a legacy to the world of ingenious insights, artistic masterpieces and a wealth of notes and drawings, some of which are unfortunately lost. InWestern culture, he has been taken as a symbol of Universal Genius, the personification of man's ingenuity","PeriodicalId":23870,"journal":{"name":"Yeast","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10525249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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