Pub Date : 2016-11-26DOI: 10.4172/2157-7552.1000185
Daegu Son
A 60 year old woman was enrolled in our study. She was 151 cm tall, weighed 73 kg and had high body mass index (33.19 kg/m2). Adipose tissue specimens were taken from her abdomen by surgical excision. ASCs were isolated in primary culture and cell counts were performed by using an automated cell counter (LUNA™). And 5 × 103 ASCs were seeded into DMEM tissue culture flasks and were cultured for 16 days (n=3). Lastly, self-renewal capacity was demonstrated by colony-forming unit fibroblast (CFUF) assays (n=3).
一位60岁的妇女参加了我们的研究。她身高151厘米，体重73公斤，身体质量指数高(33.19公斤/平方米)。手术切除腹部脂肪组织标本。在原代培养中分离ASCs，使用自动细胞计数器(LUNA™)进行细胞计数。将5 × 103株ASCs接种于DMEM组织培养瓶中，培养16 d (n=3)。最后，通过集落形成单位成纤维细胞(CFUF)试验证明了自我更新能力(n=3)。
{"title":"Yielding and Growing of Adipose Stem Cell Harvested from the Superficial and Deep Abdominal Subcutaneous Fat: A Case","authors":"Daegu Son","doi":"10.4172/2157-7552.1000185","DOIUrl":"https://doi.org/10.4172/2157-7552.1000185","url":null,"abstract":"A 60 year old woman was enrolled in our study. She was 151 cm tall, weighed 73 kg and had high body mass index (33.19 kg/m2). Adipose tissue specimens were taken from her abdomen by surgical excision. ASCs were isolated in primary culture and cell counts were performed by using an automated cell counter (LUNA™). And 5 × 103 ASCs were seeded into DMEM tissue culture flasks and were cultured for 16 days (n=3). Lastly, self-renewal capacity was demonstrated by colony-forming unit fibroblast (CFUF) assays (n=3).","PeriodicalId":17539,"journal":{"name":"Journal of Tissue Science and Engineering","volume":"96 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2016-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80799731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-11-17DOI: 10.4172/2157-7552.1000184
E. Matsuzaki, H. Anan, Noriyoshi Matsumoto, J. Hatakeyama, M. Minakami, T. Izumi
Apical periodontitis is a relatively frequently encountered disease in clinical dentistry; however, its pathogenesis and etiology are not easily elucidated. Therefore, it is not always cured, even when carefully following the highest standards of treatment and intractable apical periodontitis may occur. In addition, in long-term root canal treatment of difficult cases with intractable pain, there may be misunderstandings between the dentist and patient. While acute pain is an indispensable symptom in detecting lesions and disease, sustained chronic pain can decrease an individual’s quality of life with various negative outcomes, including decreased motivation to work. Therefore, endodontic treatments and pain control measures for a diseased tooth in intractable apical periodontitis must be developed. This review outlines the progression from the onset of the lesion and examines the immunology of apical periodontitis based on studies of model animals, indicating that interleukin-1β is a key factor in elucidating the disease state and is expected to lead to the development of an effective treatment for refractory cases.
{"title":"Immunopathology of Apical Periodontitis and Refractory Cases","authors":"E. Matsuzaki, H. Anan, Noriyoshi Matsumoto, J. Hatakeyama, M. Minakami, T. Izumi","doi":"10.4172/2157-7552.1000184","DOIUrl":"https://doi.org/10.4172/2157-7552.1000184","url":null,"abstract":"Apical periodontitis is a relatively frequently encountered disease in clinical dentistry; however, its pathogenesis and etiology are not easily elucidated. Therefore, it is not always cured, even when carefully following the highest standards of treatment and intractable apical periodontitis may occur. In addition, in long-term root canal treatment of difficult cases with intractable pain, there may be misunderstandings between the dentist and patient. While acute pain is an indispensable symptom in detecting lesions and disease, sustained chronic pain can decrease an individual’s quality of life with various negative outcomes, including decreased motivation to work. Therefore, endodontic treatments and pain control measures for a diseased tooth in intractable apical periodontitis must be developed. This review outlines the progression from the onset of the lesion and examines the immunology of apical periodontitis based on studies of model animals, indicating that interleukin-1β is a key factor in elucidating the disease state and is expected to lead to the development of an effective treatment for refractory cases.","PeriodicalId":17539,"journal":{"name":"Journal of Tissue Science and Engineering","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82686803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-11-10DOI: 10.4172/2157-7552.1000183
D. Rajendran, Gary Phang Siew Siang, Alden Toh Han Hui, K. Chooi
Background: Liver fibrosis is a reaction to chronic liver injury characterized by excessive accumulation of collagen. Due to their importance as biomarkers, the changes in gene expression in the liver during the development of fibrosis and its subsequent outcomes of cirrhosis, neoplasia or resolution are intensely studied. Quantitative realtime PCR (qPCR) with its ability to detect and measure minute amounts of nucleic acids have been increasingly used in these studies. In qPCR, the quantitation of mRNA is relative and the accuracy of results dependent on the reference genes used for standardization. However, many genes studied are normalized against single reference genes, usually housekeeping genes, without adequate justification. Methods: For the dimethylnitrosamine (DMN) induced liver fibrosis rat model, we tested 8 commonly used candidate genes (Actb, Alb, Sdha, B2m, Rn18s, Hprt1, Ppia and Gapdh) to determine their suitability as reference genes. qPCR results were analysed using four commonly used programs; NormFinder, GeNorm, Comparative ΔCt methods and BestKeeper. Result: It was determined that Gapdh and B2m were the most stable genes in normal liver. However, in DMN treated livers, Gapdh and Ppia were the most stably expressed reference genes. We validated these reference genes by using them to normalize the expression of four genes; Tgfb 1, Col1a1, Col3a1 and Tnf known to be highly expressed in liver fibrosis. Conclusion: Gapdh and Ppia are the most suitable reference genes for the normalization of qPCR data in gene expression studies of the liver in the DMN induced liver fibrosis model in the rat. We advise against the use of Actb in this experimental setting because of its low expression stability.
{"title":"Improvement of Gene Expression Studies in the DimethylnitrosamineInduced Liver Fibrosis Model in the Rat Using Selected Reference Genesfor Quantitative Real Time-PCR Analysis","authors":"D. Rajendran, Gary Phang Siew Siang, Alden Toh Han Hui, K. Chooi","doi":"10.4172/2157-7552.1000183","DOIUrl":"https://doi.org/10.4172/2157-7552.1000183","url":null,"abstract":"Background: Liver fibrosis is a reaction to chronic liver injury characterized by excessive accumulation of collagen. Due to their importance as biomarkers, the changes in gene expression in the liver during the development of fibrosis and its subsequent outcomes of cirrhosis, neoplasia or resolution are intensely studied. Quantitative realtime PCR (qPCR) with its ability to detect and measure minute amounts of nucleic acids have been increasingly used in these studies. In qPCR, the quantitation of mRNA is relative and the accuracy of results dependent on the reference genes used for standardization. However, many genes studied are normalized against single reference genes, usually housekeeping genes, without adequate justification. \u0000Methods: For the dimethylnitrosamine (DMN) induced liver fibrosis rat model, we tested 8 commonly used candidate genes (Actb, Alb, Sdha, B2m, Rn18s, Hprt1, Ppia and Gapdh) to determine their suitability as reference genes. qPCR results were analysed using four commonly used programs; NormFinder, GeNorm, Comparative ΔCt methods and BestKeeper. \u0000Result: It was determined that Gapdh and B2m were the most stable genes in normal liver. However, in DMN treated livers, Gapdh and Ppia were the most stably expressed reference genes. We validated these reference genes by using them to normalize the expression of four genes; Tgfb 1, Col1a1, Col3a1 and Tnf known to be highly expressed in liver fibrosis. \u0000Conclusion: Gapdh and Ppia are the most suitable reference genes for the normalization of qPCR data in gene expression studies of the liver in the DMN induced liver fibrosis model in the rat. We advise against the use of Actb in this experimental setting because of its low expression stability.","PeriodicalId":17539,"journal":{"name":"Journal of Tissue Science and Engineering","volume":"173 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77495305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-11-10DOI: 10.4172/2157-7552.1000182
F. Ghorbani, A. Zamanian
Regeneration of neural injuries by formation of new axons and myelination to improve quality of patient life is undeniable difficulty in the world in which scientists examined different strategies from ancient times. Recently, 3D tissue engineering scaffolds simulated original extracellular matrix (ECM) and provide desirable substrate for cellular attachment, proliferation and differentiation. However, similarity of scaffold’s materials to ECM contaminant is effective in achieving better results. Investigations demonstrated that oriented fibers, pores and unidirectional channels or conduits act as cell guidance and showed significant effect on cellular differentiation and axonal reconstruction. Between all the methods of scaffold fabrication, freeze casting provides lamellar type and controlled pores that are necessary in neural tissue engineering. In brief, designing scaffolds with oriented structure such as freeze casting with unidirectional solidification and seeding an appropriate cell before implantation improve repair process of neural damages.
{"title":"Oriented Microstructure in Neural Tissue Engineering: A Review","authors":"F. Ghorbani, A. Zamanian","doi":"10.4172/2157-7552.1000182","DOIUrl":"https://doi.org/10.4172/2157-7552.1000182","url":null,"abstract":"Regeneration of neural injuries by formation of new axons and myelination to improve quality of patient life is undeniable difficulty in the world in which scientists examined different strategies from ancient times. Recently, 3D tissue engineering scaffolds simulated original extracellular matrix (ECM) and provide desirable substrate for cellular attachment, proliferation and differentiation. However, similarity of scaffold’s materials to ECM contaminant is effective in achieving better results. Investigations demonstrated that oriented fibers, pores and unidirectional channels or conduits act as cell guidance and showed significant effect on cellular differentiation and axonal reconstruction. Between all the methods of scaffold fabrication, freeze casting provides lamellar type and controlled pores that are necessary in neural tissue engineering. In brief, designing scaffolds with oriented structure such as freeze casting with unidirectional solidification and seeding an appropriate cell before implantation improve repair process of neural damages.","PeriodicalId":17539,"journal":{"name":"Journal of Tissue Science and Engineering","volume":"1 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88484801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-29DOI: 10.4172/2157-7552.1000180
É. Cosset
A key challenge in glioblastoma biology and relevant tumor environment modeling lies in understanding of the cellular interactions occuring within the context of a 3-dimensional (3-D) human tissue microenvironment. Recently, human engineered neural tissue raise the opportunity to study such a very important feature of GBM in vitro. Here, we introduce this model for studying microRNAs.
{"title":"Human Tissue Engineering: A Relevant Model for Identifying microRNAs Activated by Glioblastoma/Neural Tissue Interaction","authors":"É. Cosset","doi":"10.4172/2157-7552.1000180","DOIUrl":"https://doi.org/10.4172/2157-7552.1000180","url":null,"abstract":"A key challenge in glioblastoma biology and relevant tumor environment modeling lies in understanding of the cellular interactions occuring within the context of a 3-dimensional (3-D) human tissue microenvironment. Recently, human engineered neural tissue raise the opportunity to study such a very important feature of GBM in vitro. Here, we introduce this model for studying microRNAs.","PeriodicalId":17539,"journal":{"name":"Journal of Tissue Science and Engineering","volume":"30 6 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2016-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82980079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Actovegin equals performance enhancing drug doping: fact or fiction","authors":"P. Lee, A. Kwan, Paul M. Smith, James P. Brock, L. Nokes","doi":"10.4172/2157-7552.1000179","DOIUrl":"https://doi.org/10.4172/2157-7552.1000179","url":null,"abstract":"Editorial article published open access in Journal of Tissue Science and Engineering available at http://dx.doi.org/10.4172/2157-7552.1000179","PeriodicalId":17539,"journal":{"name":"Journal of Tissue Science and Engineering","volume":"78 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2016-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75522534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-10-05DOI: 10.4172/2157-7552.1000181
S. Bakand
Human tissue is bombarded by a huge range of chemicals. Our lungs are inhaling pollution from both stationary and mobile sources as well as inhaled nanoparticles (NPs) and therapeutic products designed to provide new and innovative medical solutions. Our challenge is to identify what exposures are putting us at risk and balance the risk against benefits that we may receive from these chemicals and new products [1-4]. Advances in in vitro cell culture technology may provide some of the answers.
{"title":"Cell culture techniques essential for toxicity testing of inhaled materials and nanomaterials in vitro","authors":"S. Bakand","doi":"10.4172/2157-7552.1000181","DOIUrl":"https://doi.org/10.4172/2157-7552.1000181","url":null,"abstract":"Human tissue is bombarded by a huge range of chemicals. Our lungs are inhaling pollution from both stationary and mobile sources as well as inhaled nanoparticles (NPs) and therapeutic products designed to provide new and innovative medical solutions. Our challenge is to identify what exposures are putting us at risk and balance the risk against benefits that we may receive from these chemicals and new products [1-4]. Advances in in vitro cell culture technology may provide some of the answers.","PeriodicalId":17539,"journal":{"name":"Journal of Tissue Science and Engineering","volume":"53 54 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2016-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80673258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-09-30DOI: 10.4172/2157-7552.1000177
Arianna L. Gianakos, J. Kennedy
Mesenchymal stem cells (MSCs) have gained increased attention in the treatment of injury-related cartilage damage. Most of the literature has focused on the use of bone marrow MSCs for chondrogensis; however its clinical use has presented consequences of donor site morbidity and pain as well as low cell number during harvest. Adipose tissue offers an abundant source of mesenchymal stem cells (MSCs), showing promise for the treatment of cartilaginous injuries. Numerous studies have focused on the safety and efficacy of adipose-derived mesenchymal stem cells (ADSC) in the form of the stromal vascular fraction (SVF), supporting its use in future clinical applications. While reports of ADSC potential for cartilage repair have been encouraging, the lack of standardization among studies, as well as the confusing terminology describing the different forms of ADSC presents cause for deeper investigation of those studies reporting clinical success. Overall, ADSCs show significant potential as an alternative and/or adjunctive treatment of cartilaginous injuries.
{"title":"Current Status of Adipose-Derived Mesenchymal Stem Cells in Cartilage Repair","authors":"Arianna L. Gianakos, J. Kennedy","doi":"10.4172/2157-7552.1000177","DOIUrl":"https://doi.org/10.4172/2157-7552.1000177","url":null,"abstract":"Mesenchymal stem cells (MSCs) have gained increased attention in the treatment of injury-related cartilage damage. Most of the literature has focused on the use of bone marrow MSCs for chondrogensis; however its clinical use has presented consequences of donor site morbidity and pain as well as low cell number during harvest. Adipose tissue offers an abundant source of mesenchymal stem cells (MSCs), showing promise for the treatment of cartilaginous injuries. Numerous studies have focused on the safety and efficacy of adipose-derived mesenchymal stem cells (ADSC) in the form of the stromal vascular fraction (SVF), supporting its use in future clinical applications. While reports of ADSC potential for cartilage repair have been encouraging, the lack of standardization among studies, as well as the confusing terminology describing the different forms of ADSC presents cause for deeper investigation of those studies reporting clinical success. Overall, ADSCs show significant potential as an alternative and/or adjunctive treatment of cartilaginous injuries.","PeriodicalId":17539,"journal":{"name":"Journal of Tissue Science and Engineering","volume":"56 2 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2016-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85463399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-09-11DOI: 10.4172/2157-7552.1000178
Lakshmi R Nair, T. Kumary
With limited regenerative capacity and most complex structural and electrophysiological properties; recapitulating the cardiac tissue is a challenging task for the researchers. The cell injection was found unreliable due to the cell loss and low retention of the transplanted cells. This could be overcome by the technique of cell sheet engineering. Scaffold free, thick, cell dense, three dimensional constructs could be generated for suture free transplantation. For the generation of the cardiac constructs the neonatal cardiomyocytes and myoblasts were mostly used. They were tedious to isolate and culture and the risk of arrhythmogenic foci prevailed. Hence the concept of differentiating a suitable allogeneic cell source to myocardial lineage seemed relevant. Human umbilical cord mesenchymal stem cells (hUCMSCs) are emerging with the assistance of differentiating agents and cell sheet engineering for addressing the cardiac regeneration. The preliminary report on this regard has been published. The cells attained cardiomyocyte-like morphology with the expression of alpha-actinin and myosin heavy chain on culturing with cardiac conditioned medium and the inducer sphingosine-1-phosphate. It presented cardiomyocyte-like action potential and voltage gated currents. Hence the cell sheet engineering approach with cells differentiated to cardiac lineage using specific agents is a recent area to be explored.
{"title":"Cell Sheet Technology using Human Umbilical Cord Mesenchymal Stem Cells for Myocardial Tissue Engineering","authors":"Lakshmi R Nair, T. Kumary","doi":"10.4172/2157-7552.1000178","DOIUrl":"https://doi.org/10.4172/2157-7552.1000178","url":null,"abstract":"With limited regenerative capacity and most complex structural and electrophysiological properties; recapitulating the cardiac tissue is a challenging task for the researchers. The cell injection was found unreliable due to the cell loss and low retention of the transplanted cells. This could be overcome by the technique of cell sheet engineering. Scaffold free, thick, cell dense, three dimensional constructs could be generated for suture free transplantation. For the generation of the cardiac constructs the neonatal cardiomyocytes and myoblasts were mostly used. They were tedious to isolate and culture and the risk of arrhythmogenic foci prevailed. Hence the concept of differentiating a suitable allogeneic cell source to myocardial lineage seemed relevant. Human umbilical cord mesenchymal stem cells (hUCMSCs) are emerging with the assistance of differentiating agents and cell sheet engineering for addressing the cardiac regeneration. The preliminary report on this regard has been published. The cells attained cardiomyocyte-like morphology with the expression of alpha-actinin and myosin heavy chain on culturing with cardiac conditioned medium and the inducer sphingosine-1-phosphate. It presented cardiomyocyte-like action potential and voltage gated currents. Hence the cell sheet engineering approach with cells differentiated to cardiac lineage using specific agents is a recent area to be explored.","PeriodicalId":17539,"journal":{"name":"Journal of Tissue Science and Engineering","volume":"65 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2016-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75251303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-08-25DOI: 10.4172/2157-7552.1000176
W. Mbinda, S. Anami, O. Ombori, C. Dixelius, Richard O. Oduor
Sweetpotato is an important food crop in the world as well as in Kenya. Various fungal, and viral diseases are major constraints in its production and are currently threatening the sweetpotato production in sub-Saharan Africa. Genetic engineering offers significant potential for the crop’s genetic improvement. However, this is limited by the low efi¬Âciency and strong genotype dependency in tissue culture. This study aimed to establish an efficient somatic embryogenesis and plant regeneration system using shoot apical meristem explants of sweetpotato. Three sweetpotato cultivars that are widely grown in Kenya; KSP36, Kemb36 and Mweu mutheke along with an exotic model cultivar Jewel were evaluated. The maximum somatic embryogenic induction, at 96.72%, was obtained from explants cultured on Linsmaier and Skoog salts and vitamins medium supplemented with 0.5 mg/l dichlorophenoxyacetic acid and 0.2 mg/l zeatin riboside. The highest number of shoot induction (33) was observed after transfer of embryonic callus to embryo maturation medium supplemented with 2 mg/l abscisic acid. Significant differences were observed between cultivars for somatic embryogenesis and plant regeneration. Jewel showed the best response, while Mweu mutheke was the least responsive under the culture conditions tested in this study. Regenerated plants were successfully rooted and grown to maturity after hardening in soil in the greenhouse. Such a robust, successful and efi¬Âcient system possesses the potential to become an important tool for crop improvement and functional studies of genes in sweetpotato.
{"title":"Efficient Plant Regeneration of Selected Kenyan Sweetpotato (Ipomoea batatas (L.) Lam.) Cultivars through Somatic Embryogenesis","authors":"W. Mbinda, S. Anami, O. Ombori, C. Dixelius, Richard O. Oduor","doi":"10.4172/2157-7552.1000176","DOIUrl":"https://doi.org/10.4172/2157-7552.1000176","url":null,"abstract":"Sweetpotato is an important food crop in the world as well as in Kenya. Various fungal, and viral diseases are major constraints in its production and are currently threatening the sweetpotato production in sub-Saharan Africa. Genetic engineering offers significant potential for the crop’s genetic improvement. However, this is limited by the low efi¬Âciency and strong genotype dependency in tissue culture. This study aimed to establish an efficient somatic embryogenesis and plant regeneration system using shoot apical meristem explants of sweetpotato. Three sweetpotato cultivars that are widely grown in Kenya; KSP36, Kemb36 and Mweu mutheke along with an exotic model cultivar Jewel were evaluated. The maximum somatic embryogenic induction, at 96.72%, was obtained from explants cultured on Linsmaier and Skoog salts and vitamins medium supplemented with 0.5 mg/l dichlorophenoxyacetic acid and 0.2 mg/l zeatin riboside. The highest number of shoot induction (33) was observed after transfer of embryonic callus to embryo maturation medium supplemented with 2 mg/l abscisic acid. Significant differences were observed between cultivars for somatic embryogenesis and plant regeneration. Jewel showed the best response, while Mweu mutheke was the least responsive under the culture conditions tested in this study. Regenerated plants were successfully rooted and grown to maturity after hardening in soil in the greenhouse. Such a robust, successful and efi¬Âcient system possesses the potential to become an important tool for crop improvement and functional studies of genes in sweetpotato.","PeriodicalId":17539,"journal":{"name":"Journal of Tissue Science and Engineering","volume":"214 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72655795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：