Genetic Modification Techniques Research Articles

New Frontiers in Potato Breeding: Tinkering with Reproductive Genes and Apomixis.

Potato is the most important non-cereal crop worldwide, and, yet, genetic gains in potato have been traditionally delayed by the crop's biology, mostly the genetic heterozygosity of autotetraploid cultivars and the intricacies of the reproductive system. Novel site-directed genetic modification techniques provide opportunities for designing climate-smart cultivars, but they also pose new possibilities (and challenges) for breeding potato. As potato species show a remarkable reproductive diversity, and their ovules have a propensity to develop apomixis-like phenotypes, tinkering with reproductive genes in potato is opening new frontiers in potato breeding. Developing diploid varieties instead of tetraploid ones has been proposed as an alternative way to fill the gap in genetic gain, that is being achieved by using gene-edited self-compatible genotypes and inbred lines to exploit hybrid seed technology. In a similar way, modulating the formation of unreduced gametes and synthesizing apomixis in diploid or tetraploid potatoes may help to reinforce the transition to a diploid hybrid crop or enhance introgression schemes and fix highly heterozygous genotypes in tetraploid varieties. In any case, the induction of apomixis-like phenotypes will shorten the time and costs of developing new varieties by allowing the multi-generational propagation through true seeds. In this review, we summarize the current knowledge on potato reproductive phenotypes and underlying genes, discuss the advantages and disadvantages of using potato's natural variability to modulate reproductive steps during seed formation, and consider strategies to synthesize apomixis. However, before we can fully modulate the reproductive phenotypes, we need to understand the genetic basis of such diversity. Finally, we visualize an active, central role for genebanks in this endeavor by phenotyping properly genotyped genebank accessions and new introductions to provide scientists and breeders with reliable data and resources for developing innovations to exploit market opportunities.

Clostridium Bacteria: Harnessing Tumour Necrosis for Targeted Gene Delivery.

Necrosis is a common feature of solid tumours that offers a unique opportunity for targeted cancer therapy as it is absent from normal healthy tissues. Tumour necrosis provides an ideal environment for germination of the anaerobic bacterium Clostridium from endospores, resulting in tumour-specific colonisation. Two main species, Clostridium novyi-NT and Clostridium sporogenes, are at the forefront of this therapy, showing promise in preclinical models. However, anti-tumour activity is modest when used as a single agent, encouraging development of Clostridium as a tumour-selective gene delivery system. Various methods, such as allele-coupled exchange and CRISPR-cas9 technology, can facilitate the genetic modification of Clostridium, allowing chromosomal integration of transgenes to ensure long-term stability of expression. Strains of Clostridium can be engineered to express prodrug-activating enzymes, resulting in the generation of active drug selectively in the tumour microenvironment (a concept termed Clostridium-directed enzyme prodrug therapy). More recently, Clostridium strains have been investigated in the context of cancer immunotherapy, either in combination with immune checkpoint inhibitors or with engineered strains expressing immunomodulatory molecules such as IL-2 and TNF-α. Localised expression of these molecules using tumour-targeting Clostridium strains has the potential to improve delivery and reduce systemic toxicity. In summary, Clostridium species represent a promising platform for cancer therapy, with potential for localised gene delivery and immunomodulation selectively within the tumour microenvironment. The ongoing clinical progress being made with C. novyi-NT, in addition to developments in genetic modification techniques and non-invasive imaging capabilities, are expected to further progress Clostridium as an option for cancer treatment.

Phenotyping, genetics, and "-omics" approaches to unravel and introgress enhanced resistance against apple scab (Venturia inaequalis) in apple cultivars (Malus × domestica).

Apple scab disease, caused by the fungus Venturia inaequalis, endangers commercial apple production globally. It is predominantly managed by frequent fungicide sprays that can harm the environment and promote the development of fungicide-resistant strains. Cultivation of scab-resistant cultivars harboring diverse qualitative Rvi resistance loci and quantitative trait loci associated with scab resistance could reduce the chemical footprint. A comprehensive understanding of the host-pathogen interaction is, however, needed to efficiently breed cultivars with enhanced resistance against a variety of pathogenic strains. Breeding efforts should not only encompass pyramiding of Rvi loci and their corresponding resistance alleles that directly or indirectly recognize pathogen effectors, but should also integrate genes that contribute to effective downstream defense mechanisms. This review provides an overview of the phenotypic and genetic aspects of apple scab resistance, and currently known corresponding defense mechanisms. Implementation of recent "-omics" approaches has provided insights into the complex network of physiological, molecular, and signaling processes that occur before and upon scab infection, thereby revealing the importance of both constitutive and induced defense mechanisms. Based on the current knowledge, we outline advances toward more efficient introgression of enhanced scab resistance into novel apple cultivars by conventional breeding or genetic modification techniques. However, additional studies integrating different "-omics" approaches combined with functional studies will be necessary to unravel effective defense mechanisms as well as key regulatory genes underpinning scab resistance in apple. This crucial information will set the stage for successful knowledge-based breeding for enhanced scab resistance.

CRISPR/Cas9 gene editing: A promising approach towards Huntingtons Disease

Huntington's Disease (HD) is an incurable neurodegenerative condition marked by the gradual decline of motor abilities, cognitive capabilities, and emotional stability. It results from a mutation in the Huntingtin gene (HTT), which triggers the generation of a harmful variant of the Huntingtin protein known as mutant Huntingtin (mHTT). Despite significant advancements in understanding the disease's molecular basis, effective treatments to halt or reverse its progression remain elusive. Over the past few years, the groundbreaking genetic modification technique called Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) has risen as a hopeful tool in the realm of genetic investigation and treatment. CRISPR has the potential to precisely target and modify specific genes, offering new possibilities for the treatment of Huntington's Disease. This paper aims to provide an overview of Huntington's Disease, the CRISPR technology, and its potential applications in addressing the underlying genetic causes of HD. By exploring the fundamental aspects of both HD and CRISPR, this paper hopes to provide a clearer picture to the therapeutic potential of CRISPR in mitigating the effects of this neurodegenerative disorder.

Advancing Crop Improvement Through CRISPR Technology in Precision Agriculture Trends-A Review

The advent of CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) technology has ushered in a new era in agricultural biotechnology, offering unprecedented opportunities for targeted genome editing and crop improvement. This review article presents a comprehensive examination of the advancements, applications, challenges, and future prospects of CRISPR technology within the context of precision agriculture. The integration of CRISPR with precision agriculture technologies signifies a major shift towards more efficient and sustainable farming practices, emphasizing the precise modification of crops to enhance yield, disease resistance, and environmental stress tolerance. The historical backdrop of agricultural biotechnology and the evolution of precision agriculture set the stage for understanding the transformative impact of CRISPR technology. CRISPR's superiority over traditional breeding and genetic modification techniques lies in its precision, speed, and cost-effectiveness. Detailed case studies of CRISPR-modified crops, such as disease-resistant wheat, drought-tolerant rice, and nutrient-efficient maize, highlight the technology's practical implications. These modifications not only enhance crop performance but also contribute to ecological sustainability and increased farmer income, demonstrating CRISPR's significant role in addressing global food security challenges. The application of CRISPR in agriculture is not without challenges. Regulatory hurdles, public perception, technical limitations, and ethical considerations present substantial obstacles to the widespread adoption of CRISPR-modified crops. The review addresses these challenges, offering insights into the complex interplay between technological innovation and societal acceptance. Further explores potential developments in CRISPR technology, including next-generation genome editing tools and the integration of synthetic biology. It underscores the importance of interdisciplinary collaborations and adaptive policy frameworks to navigate the evolving technological and regulatory landscapes. The future of CRISPR in precision agriculture promises not only enhanced crop varieties but also a paradigm shift towards more data-driven, customized, and environmentally conscious farming practices. This review concludes that CRISPR technology, despite its challenges, holds immense promise for revolutionizing agriculture. Its continued development and responsible implementation are key to realizing its full potential in contributing to a sustainable and secure agricultural future.

Critical Legal Reading of World Anti-Doping Agency’s Gene Doping Guidance

The genetic barrier negatively affected competitive athletic performance until the advent of gene therapy and genetic manipulation, which cast doubt on and impacted the legitimacy of sporting events. At that a critical point, the World Anti-Doping Agency (WADA) interfered in such experimentation and application with a serious attempt to curb the problem and set things back on track with the healthiest standards in light of bioethics. However, the major problem that the agency has encountered and which this legal study wants to raise, and address is the legal consequences that result from the lack of a reliable method that provides sufficient evidence and definitive answers to confirm whether cellular and gene doping are occurring or not. This is study aims to demonstrate that the procedures for accusing players of using genetic modification and genetic change techniques are incorrect and insufficient and may be harmful. The suspicion must be interpreted in favour of the accused (i.e., the athlete) in accordance with the general principles of penal codification. However, some of the Agency's procedures are not compatible with the provisions of international treaties, not to mention they conflict with the Punitive legislation of numerous countries.

A simple method for the preparation of single cells and regeneration of colonies of Botryococcus braunii NIES836

Botryococcus braunii, a colonial alga, is known for notably slow growth; however, the growth rate and hydrocarbon productivity are expected to be improved using genetic modification techniques. Nevertheless, B. braunii has a hydrocarbon-rich extracellular matrix (ECM), and the ECM is a major barrier to DNA transformation. To analyse and utilize genetically modified B. braunii, it is essential to regenerate genetically homogeneous colonies derived from single cells. In this study, we developed a novel, simple method for harvesting viable single cells of B. braunii by centrifugation of the culture and subsequent filtration alone. The harvest of single cells was made possible by culturing B. braunii colonies in AF6 medium until the depletion of nitrogen and phosphorus sources and then releasing the single cells in colonies into the medium. Twenty-day culture of single cells in a 96-well plate resulted in 96% regeneration of colonies, and the regeneration of colonies was also confirmed on agar medium. This is the first report of colony regeneration from single cells of B. braunii. We believe that our method developed in this study will contribute greatly to the advancement of genetic modification techniques for B. braunii.

Are the fates of supermassive black holes and galaxies determined by individual mergers, or by the properties of their host haloes?

ABSTRACT The fates of massive galaxies are tied to the evolution of their central supermassive black holes (BHs), due to the influence of AGN feedback. Correlations within simulated galaxy populations suggest that the masses of BHs are governed by properties of their host dark matter haloes, such as the binding energy and assembly time, at a given halo mass. However, the full picture must be more complex, as galaxy mergers have also been shown to influence the growth of BHs and the impact of AGN. In this study, we investigate this problem through a controlled experiment, using the genetic modification technique to adjust the assembly history of a Milky Way-like galaxy simulated with the EAGLE model. We change the halo assembly time (and hence the binding energy) in the absence of any disruptive merger events, and find little change in the integrated growth of the BH. We attribute this to the angular momentum support provided by a galaxy disc, which reduces the inflow of gas towards the BH and effectively decouples the BH’s growth from the halo’s properties. Introducing major mergers into the assembly history disrupts the disc, causing the BH to grow ≈4 × more massive and inject feedback that reduces the halo baryon fraction by a factor of ≈2 and quenches star formation. Merger events appear essential to the diversity in BH masses in EAGLE, and we also show that they increase the halo binding energy; correlations between these quantities may therefore be the result of merger events.

Genetic modification – benefits and risks for New Zealand grassland production systems

Fundamentally plant breeding is about expanding and exploiting the genetic potential of plants (Stoskopf et al. 2019). Over time this has included amongst others phenotypic selection, mutagenesis, genetic modification (GM) and now gene editing (Bowerman et al. 2023). In many crop species genetic modification has been a valuable option for delivering improved economic and environmental outcomes. However, while genetic modification has been extensively used in crops for 25 years it has rarely been a technology used to advance trait expression in forage and grassland species. Worldwide, GM technologies have been adopted at a faster rate than any other recent crop technology (Raman 2017; Scheitrum et al. 2020). Despite the large government investment into GM technologies for use in grass and forage plants it has not used outside of containment in New Zealand (Caradus 2008).
 The aim here is to review why New Zealand has been so reluctant to use GM technologies as another means of providing solutions for the pastoral sector. Traits manipulated using a range of genetic modification techniques that might have application and benefit in grassland systems will be reviewed, and regulatory concerns that need to be considered when adopting GM forage and pasture plants will be discussed. Interestingly, 70 to 90% of GM crop production globally is used for animal feed (Flachowsky et al. 2012; Ritchie and Roser 2021). So if animals across the world, including those in USA, China and Europe are being fed GM crops (Baulcombe et al. 2014) why would New Zealand be concerned about using GM pasture plants? Although over a decade old, a useful summary of views from a variety of stakeholders is provided by the New Zealand Institute of Agricultural & Horticultural Science (AgScience 2010).

Bioefficacy of engineered Beauveria bassiana with scorpion neurotoxin, LqqIT1 against cotton mealybug, Phenacoccus solenopsis and cowpea aphid, Aphis craccivora.

Cotton mealybug, Phenacoccus solenopsis (Tinsley) and cowpea aphid Aphis craccivora (Koch) are notorious polyphagous, hemipteran sap sucking insect pests. A recombinant toxin gene 'LqqIT1' from the scorpion Leiurus quinquestriatus quinquestriatus (Ehrenberg) was cloned in the pAL1 fungal expression vector and then expressed in the entomopathogenic fungus Beauveria bassiana (Balasmo) using genetic modification techniques. The genetically transformed B. bassiana strain (BbLqqIT1-3) and its un-transformed parent strain (Bb-C) were screened to infect the third instar nymphs of P. solenopsis and first instar nymph of A. craccivora through leaf treatment and topical application (spray) method at 1 * 107 spores per ml concentration. The recombinant strain BbLqqIT1-3 was highly pathogenic against A. craccivora but non pathogenic to P. solenopsis. BbLqqIT1-3 induced 72 and 43.33% mortality in A. craccivora nymphs 96 h after leaf treatment and topical application, respectively. The nymphs of A. craccivora infected with BbLqqIT1-3 displayed classical neurotoxic symptoms such as sluggishness, solublize and liquification of the body. Crude soluble toxin protein, BbLqqIT1a-CSE and Bb-WT-CSE was extracted from the BbLqqIT1-3 and Bb-C, respectively using ammonium sulphate precipitation method, and their oral toxicity was analyzed at 5 µg/ml concentration. The survival of the studied insects was negatively affected by the crude soluble toxin extracts. The LT50 values of BbLqqIT1a-CSE against P. solenopsis and A. craccivora were 22.18 and 17.69 h, respectively. Exposure to crude soluble toxin extracts also accounted for the imbalance of ionic concentrations in the hemolymph of treated insects such as hyperpotassemia (3.53-8.18 meq/ml) in the P. solenopsis and hypopotassemia (7.52-0.47 meq/ml) in A. craccivora. The transformed fungus BbLqqIT1-3 strain exhibited promising results in invitro study.

A combined transcriptomic and physiological approach to understanding the adaptive mechanisms to cope with oxidative stress in Fusarium graminearum.

In plant-pathogen interactions, oxidative bursts are crucial for plants to defend themselves against pathogen infections. Rapid production and accumulation of reactive oxygen species kill pathogens directly and cause local cell death, preventing pathogens from spreading to adjacent cells. Meanwhile, the pathogens have developed several mechanisms to tolerate oxidative stress and successfully colonize plant tissues. In this study, we investigated the mechanisms responsible for resistance to oxidative stress by analyzing the transcriptomes of six oxidative stress-sensitive strains of the plant pathogenic fungus Fusarium graminearum. Weighted gene co-expression network analysis identified several pathways related to oxidative stress responses, including the DNA repair system, autophagy, and ubiquitin-mediated proteolysis. We also identified hub genes with high intramodular connectivity in key modules and generated deletion or conditional suppression mutants. Phenotypic characterization of those mutants showed that the deletion of FgHGG4, FgHGG10, and FgHGG13 caused sensitivity to oxidative stress, and further investigation on those genes revealed that transcriptional elongation and DNA damage responses play roles in oxidative stress response and pathogenicity. The suppression of FgHGL7 also led to hypersensitivity to oxidative stress, and we demonstrated that FgHGL7 plays a crucial role in heme biosynthesis and is essential for peroxidase activity. This study increases the understanding of the adaptive mechanisms to cope with oxidative stress in plant pathogenic fungi. IMPORTANCE Fungal pathogens have evolved various mechanisms to overcome host-derived stresses for successful infection. Oxidative stress is a representative defense system induced by the host plant, and fungi have complex response systems to cope with it. Fusarium graminearum is one of the devastating plant pathogenic fungi, and understanding its pathosystem is crucial for disease control. In this study, we investigated adaptive mechanisms for coping with oxidative stress at the transcriptome level using oxidative stress-sensitive strains. In addition, by introducing genetic modification technique such as CRISPR-Cas9 and the conditional gene expression system, we identified pathways/genes required for resistance to oxidative stress and also for virulence. Overall, this study advances the understanding of the oxidative stress response and related mechanisms in plant pathogenic fungi.

CRISPR/Cas9 genome editing for comparative genetic analysis related to soy sauce brewing in Aspergillus sojae industrial strains.

Aspergillus sojae has traditionally been used in soy sauce brewing. Genetic modification techniques have been established in A. sojae, but it is difficult to apply them to various industrial strains. Although we have previously developed a CRISPR/Cpf1 system for genetic modification of A. sojae, another genome editing system was required for versatile modification. In addition, repetitive genetic modification using the CRISPR system has not been established in A. sojae. In this study, we demonstrated mutagenesis, gene deletion/integration, and large deletion of a chromosomal region in A. sojae using the CRISPR/Cas9 system. We also successfully performed repetitive genetic modification using a method that involved forced recycling of genome-editing plasmids. Moreover, we demonstrated that the effects of genetic modification related to soy sauce brewing differed among A. sojae industrial strains. These results showed that our technique of using the CRISPR/Cas9 system is a powerful tool for genetic modification in A. sojae.

Putting gene drives into context: Risks, depth of intervention, and regulatory challenges

Engineered gene drives are an emerging technology for the large-scale genetic modification of natural populations of species. They are controversial due to high levels of uncertainty about their risks and benefits. We analyze gene drives in their social, natural, and technological contexts. We discuss their depth of intervention and compare gene drives to “conventional” genetic modification techniques and to other novel high-impact technologies. While gene drives might overpromise and under-deliver solutions for problems of sustainable development, they also represent a paradigm shift in human technological interference with nature, thus requiring broad discussion in society.

Various gene modification techniques to discover molecular targets for nonhormonal male contraceptives: A review.

The identification and characterization of relevant targets are necessary for developing nonhormonal male contraceptives. The molecules must demonstrate that they are necessary for reproduction. As a result, a sophisticated technique is required to identify the molecular targets for nonhormonal male contraceptives. Genetic modification (GM) techniques are one method that can be applied. This technique has been widely used to study gene function that effected male fertility and has resulted in the discovery of numerous nonhormonal male contraceptive target molecules. We examined GM techniques and approaches used to investigate genes involved in male fertility as potential targets for nonhormonal contraceptives. The discovery of nonhormonal contraceptive candidate molecules was increased by using GM techniques, especially the Clustered Regularly Interspaced Short Palindromic Repeats/Cas9 method. The discovery of candidate nonhormonal contraceptive molecules can be a wide-open research for the development of nonhormonal male contraceptives. Therefore, we are believing that one day nonhormonal male contraceptives will be released.

CAR-T Cells with Phytohemagglutinin (PHA) Provide Anti-Cancer Capacity with Better Proliferation, Rejuvenated Effector Memory, and Reduced Exhausted T Cell Frequencies.

The development of genetic modification techniques has led to a new era in cancer treatments that have been limited to conventional treatments such as chemotherapy. intensive efforts are being performed to develop cancer-targeted therapies to avoid the elimination of non-cancerous cells. One of the most promising approaches is genetically modified CAR-T cell therapy. The high central memory T cell (Tcm) and stem cell-like memory T cell (Tscm) ratios in the CAR-T cell population increase the effectiveness of immunotherapy. Therefore, it is important to increase the populations of CAR-expressing Tcm and Tscm cells to ensure that CAR-T cells remain long-term and have cytotoxic (anti-tumor) efficacy. In this study, we aimed to improve CAR-T cell therapy's time-dependent efficacy and stability, increasing the survival time and reducing the probability of cancer cell growth. To increase the sub-population of Tcm and Tscm in CAR-T cells, we investigated the production of a long-term stable and efficient cytotoxic CAR-T cell by modifications in the cell activation-dependent production using Phytohemagglutinin (PHA). PHA, a lectin that binds to the membranes of T cells and increases metabolic activity and cell division, is studied to increase the Tcm and Tscm population. Although it is known that PHA significantly increases Tcm cells, B-lymphocyte antigen CD19-specific CAR-T cell expansion, its anti-cancer and memory capacity has not yet been tested compared with aCD3/aCD28-amplified CAR-T cells. Two different types of CARs (aCD19 scFv CD8-(CD28 or 4-1BB)-CD3z-EGFRt)-expressing T cells were generated and their immunogenic phenotype, exhausted phenotype, Tcm-Tscm populations, and cytotoxic activities were determined in this study. The proportion of T cell memory phenotype in the CAR-T cell populations generated by PHA was observed to be higher than that of aCD3/aCD28-amplified CAR-T cells with similar and higher proliferation capacity. Here, we show that PHA provides long-term and efficient CAR-T cell production, suggesting a potential alternative to aCD3/aCD28-amplified CAR-T cells.

Consumer and regulatory response to climate change-new plant breeding techniques

Climate change is having a significant impact on the global grape and wine sector. We are seeing earlier and more compressed vintages, more extreme weather events, and a warming of temperatures. These are all leading to management changes in both the vineyard and the winery. Overlaying these physical changes are the mega-consumer trends that are demanding more sustainable production patterns. These trends are changing consumer attitudes to many previously held beliefs. Solutions with a trend toward a sustainable and agrochemical-free agriculture and production chain are needed. Technological advances in plant genetic engineering, coupled with the sequencing of the grapevine genome, has enabled new techniques that can rapidly be used to enhance positive characters in grape vines and wine. Changing consumer attitudes have led to a number of regulators reviewing their existing food regulations for genetically modified (GM) food. The debate around the definitions for GM food and whether these are fit for purpose since the emergence of a range of new techniques for genetic modification has the potential to dramatically change the landscape for grape and wine production internationally. In this paper we explore the current regulatory developments, consumer trends and attitudes and the implications for the grape and wine sector as we seek to cope with the demands of climate change and provide a sustainable future for the planet.

The Rendering of Traditional Fermented Foods in Human Diet: Distribution of Health Benefits and Nutritional Benefits

Most fermented foods are based on the cultural preferences of different geographical areas and the heterogeneity of traditions from where they are produced. For instance, many consumers in Asian countries prefer fermented seafood, while consumers in Europe prefer fermented cereal and dairy food products. Even though the food industry has developed various novel techniques in order to produce novel foods (genetic modification, nanotechnology and other processing techniques), traditional foods still represent a significant proportion of the food industry, which has recently appeared to develop further. In addition, the progress in various developed analytical techniques has revealed new knowledge that documents and corroborates certain benefits of traditional foods, mostly regarding their nutritional and health benefits. In this context, the main target of this Special Issue is to deliver new data on how traditional foods exhibit their health-promoting properties and ameliorate the nutritional value of fermented food systems. In addition, the involvement of wild starter culture in the production of traditional foods is a subject area that must be highlighted.

Japanese Pharmaceutical Regulations of Engineered Viral Vectors for Medical Use Compared With Those in the United States and the European Union.

Japanese Pharmaceutical Regulations of Engineered Viral Vectors for Medical Use Compared With Those in the United States and the European Union.

Genetically modified trees with improved abiotic stress resistance - recent accomplishments. A review.

Great progress has been made within the last few years in terms of abiotic stress resistance improvement of forest trees. The application of genetic modification techniques allows developing trees displaying superior growth under various abiotic stresses such as high salinity, drought, low temperature, and environmental pollution. Poplar, which is an important agroforestry crop, is especially responsive to improvement through genetic engineering. With the view of imminent environmental changes, the application of transformation techniques to forestry breeding seems to be an attractive perspective. Here, we review the most recent achievements of researchers developing genetically modified (GM) poplar trees displaying enhanced performance under unfavorable experimental conditions.

Dunaliella salina as a Potential Biofactory for Antigens and Vehicle for Mucosal Application

The demand for effective, low-cost vaccines increases research in next-generation biomanufacturing platforms and the study of new vaccine delivery systems (e.g., mucosal vaccines). Applied biotechnology in antigen production guides research toward developing genetic modification techniques in different biological models to achieve the expression of heterologous proteins. These studies are based on various transformation protocols, applied in prokaryotic systems such as Escherichia coli to eukaryotic models such as yeasts, insect cell cultures, animals, and plants, including a particular type of photosynthetic organisms: microalgae, demonstrating the feasibility of recombinant protein expression in these biological models. Microalgae are one of the recombinant protein expression models with the most significant potential and studies in the last decade. Unicellular photosynthetic organisms are widely diverse with biological and growth-specific characteristics. Some examples of the species with commercial interest are Chlamydomonas, Botryococcus, Chlorella, Dunaliella, Haematococcus, and Spirulina. The production of microalgae species at an industrial level through specialized equipment for this purpose allows for proposing microalgae as a basis for producing recombinant proteins at a commercial level. A specie with a particular interest in biotechnology application due to growth characteristics, composition, and protein production capacity is D. salina, which can be cultivated under industrial standards to obtain βcarotene of high interest to humans. D saline currently has advantages over other microalgae species, such as its growth in culture media with a high salt concentration which reduces the risk of contamination, rapid growth, generally considered safe (GRAS), recombinant protein biofactory, and a possible delivery vehicle for mucosal application. This review discusses the status of microalgae D. salina as a platform of expression of recombinant production for its potential mucosal application as a vaccine delivery system, taking an advance on the technology for its production and cultivation at an industrial level.