First name,Last name,Preferred title,Overview,Position,Department,Individual
Yi,Xu,Associate Professor,"Our current research activities focus on understanding the pathogenic mechanism of Streptococcus gallolyticus subsp. gallolyticus (Sgg). Sgg is a gram-positive opportunistic pathogen that causes life-threatening bacteremia and infective endocarditis (IE). It is also strongly associated with colorectal cancer (CRC). My lab was the first to demonstrate that Sgg actively promotes the development of colon tumors, elevating a long-stranding clinical association to a functional causal role of Sgg in tumor development. Despite its medical importance, the pathogenic mechanism of Sgg remains poorly understood. Our recent studies have demonstrated that a type VII secretion system of Sgg plays a key role in pathogenesis. Currently we are interested in understanding the mechanism underlying following key steps in Sgg pathogenesis: 1) colonization of the intestinal epithelium, 2) modulation of intestinal homeostasis in normal and tumor-bearing colons, and 3) dissemination from the gastrointestinal tract to the circulatory system.
Keywords: bacterial pathogenesis, infectious diseases, virulence, colorectal cancer, microbiome, microbiota, type VII secretion system, gastrointestinal tract",Associate Professor,Institute of Biosciences and Technology,https://scholars.library.tamu.edu/vivo/display/n0c22439a
Timothy,Devarenne,Associate Professor,"We study the biochemical and molecular mechanisms underlying the control of programmed cell death (PCD) in plants and how PCD is manipulated during plant-pathogen interactions. Specifically we study the interaction between tomato and Pseudomonas syringae pv. tomato (Pst) the causative agent of bacterial spot disease. Resistance to this disease is conferred by the host Pto serine/threonine protein kinase which recognizes Pst strains expressing the type III effector protein AvrPto.
PCD is induced during both resistant and susceptible plant-pathogen interactions. In the case of a resistant interaction, PCD induced by the plant, known as the hypersensitive response (HR), and acts to limit the spread of the pathogen. In susceptible plant-pathogen interactions plant PCD is induced by the pathogen after infection leading to death of the host. Studies have indicated that the genes controlling host PCD during the HR are the same genes that are manipulated by the pathogen during susceptible interactions. The difference lies in the timing of controlling the activity of these genes; HR PCD occurs within 12 hours of pathogen recognition while pathogen-induced PCD occurs several days after infection.
Many of these genes that control plant PCD are serine/threonine (S/T) protein kinase. We are interested in studying a specific class of S/T protein kinases that control PCD in plants called AGC kinases and how they are regulated in both resistant and susceptible plant-pathogen interactions. Additionally, when plants are not attacked by pathogens, PCD is a process that requires constant control so that cell death does not occur. We are looking at the signaling mechanisms and pathways employed to keep PCD under check in non-pathogen challenged plants.",Faculty Affiliate||Associate Professor,Energy Institute||Biochemistry and Biophysics,https://scholars.library.tamu.edu/vivo/display/n11411275
Rodolfo,Aramayo,Associate Professor,"My current research primarily focuses on understanding the organization, distribution, and comparison of information in Biological Systems. Our work encompasses two key levels of investigation:
Molecular Genetics: We employ the filamentous fungus Neurospora crassa as a model organism to uncover and comprehend the intricate molecular components responsible for sequence-based comparisons between homologous chromosomes, leading to the initiation of Meiotic Silencing, a phenomenon driven by RNA-mediated processes. Currently, our primary focus centers on the exploration of whether genes recognized for their significance in Meiotic Transvection/Silencing also contribute to the occurrence of Repeat Induced Point Mutation (RIP) phenomena.
Computational Analysis: We are developing novel computational pipelines dedicated to detecting sequence variations within related genomes. We are particularly intrigued by the prospect of simplifying (i.e., digitizing) the information present in DNA, RNA, and Proteins so as to simplify its manipulation and analysis. We think that digitizing emerging genomic data will not only enable us to use this data effectively but also to integrate it into Artificial Intelligence, Data Clustering, and Image Recognition Algorithms, in ways not done before. We posit that this process of converting biological features into digital equivalents has the potential to simplify genomic information, making it easier to uncover previously unnoticed patterns through complex computational comparisons. This approach has already yielded promising results by revealing unexpected informational patterns across various organisms' chromosomes. We believe that it will streamline and enhance our ability to comprehend different cellular and organismal states. Moreover, it holds significant promise in revolutionizing our understanding of diseases, particularly Cancer and Metagenomics. This informational perspective also contributes to our comprehension of genome evolution, especially in the field of comparative genomics and microbial metagenomics.",Associate Professor,Biology,https://scholars.library.tamu.edu/vivo/display/n14287b36
Duncan,Mackenzie,Associate Professor,"Hormones secreted by the thyroid gland are of primary importance in the regulation of such fundamental physiological processes as growth, nutrient utilization, and reproduction. In my laboratory we examine the regulation of the secretion of thyroid hormones and their actions in poikilothermic vertebrates in order to understand the evolution of thyroid function. We are presently focusing on the regulation on thyroid hormone secretion and the mechanisms of iodine transport in commercially-important fish species such as the red drum (Sciaenops ocellatus), the channel catfish (Ictalurus punctatus), and even the zebrafish (Danio rerio).
This research is aimed at providing new insights into the potentially ancient role of thyroid hormones in nutrient assimilation, as well as elucidating evolutionary trends in the regulation of thyroid function. These studies may serve identify ways in which the pituitary-thyroid axis may be manipulated to enhance aquaculture production or endangered species conservation.",Associate Professor,Biology,https://scholars.library.tamu.edu/vivo/display/n33bd0e42
Alistair,McGregor,Associate Professor,"Our lab studies various herpesviruses but the major focus of our research is on the study of cytomegalovirus (CMV) which is a common pathogen that establish a life long infection in a mainly latent state. CMV causes disease in transplant patients and is a leading cause of congenital disease in newborns where the virus crosses the placenta and infects the fetus in utero. Congenitally infected newborns can have severe disease that causes cognitive impairment, hearing loss and vision problems. There is no vaccine against congenital CMV and our research seeks to understand the disease and develop interventions strategies.",Associate Professor,Microbial Pathogenesis and Immunology,https://scholars.library.tamu.edu/vivo/display/n3de7f8e8
Karl,Aufderheide,Emeritus Associate Professor,"Cell/Developmental Biology. Developmental Genetics. Intracellular differentiation of eukaryotes, especially ciliates. General interests in: intracellular pattern formation and morphogenesis; molecular aspects of gene expression in ciliate protozoa; development of organelles, including intracellular motility and organelle localization. Specific interests in: signal transduction, regulation of cytoskeletal organization, and motility in the social amoeba Dictyostelium; organization, patterning and morphogenesis of surface-related cytoskeletal and membranous structures of ciliates, especially Paramecium; applications of laser optical force trap technology to developmental problems in Paramecium tetraurelia and Tetrahymena thermophila; 2 molecular aspects of serotype gene expression in P. tetraurelia; development of exocytotic organelles (the trichocysts) in P. tetraurelia. General approach involves use of classical and modern light and electron microscopic techniques, integrated with genetic, molecular, mechanical or physiological manipulations of the cells.",Associate Professor,Biology,https://scholars.library.tamu.edu/vivo/display/n3ed65e09
Scott,Dindot,Associate Professor,,Associate Professor,Veterinary Pathobiology,https://scholars.library.tamu.edu/vivo/display/n5a986b57
Kevin,Myles,Professor,,Associate Professor,Entomology,https://scholars.library.tamu.edu/vivo/display/n5d73717b
Allen,Honeyman,Associate Professor,,Associate Professor,Biomedical Sciences,https://scholars.library.tamu.edu/vivo/display/n62788a8f
Ambika,Chandra,Associate Professor,"My primary responsibility and research interest is breeding (applied and molecular) and cultivar development of warm- and cool-season turfgrass species for use in home lawns, athletic fields and golf courses. This involves adopting holistic systems approach towards cultivar development, marketing and commercialization through industry collaborations; working interactively in the interdisciplinary areas of turfgrass science including turfgrass genomics, physiology, entomology, pathology, soils and socio-economics; developing high-throughput greenhouse/growth chamber phenotyping procedures to efficiently evaluate large breeding (and mapping) populations for important traits of interest including a wide range of biotic and abiotic stress tolerances. My interests also include graduate student education and training of tomorrow's plant breeders and turfgrass professionals capable of leading a successful career in academia and/or the turfgrass industry.",Associate Professor||Associate Professor||Associate Professor,Soil and Crop Sciences||Dallas Research and Extension Center||Texas A&M AgriLife Research,https://scholars.library.tamu.edu/vivo/display/n7be9df6a
Jason,Sylvan,Associate Professor,"Microbes are the major mediators of biogeochemical cycles on earth. Although tiny, their metabolisms have global implications. My research focuses on two aspects of microbial ecology - interactions between the ocean crust and marine microbes, and the impact of anthropogenic influence on marine microbes. I determine the effect microbial communities have on biogeochemical cycles in a variety of settings through quantification of microbial biomass, analysis of microbial diversity and function, and measurement of microbial activity. My research is interdisciplinary and involves collaboration with chemists, geologists and biological oceanographers.",Associate Professor,Oceanography,https://scholars.library.tamu.edu/vivo/display/n7fb1298a
Susan,Payne,Associate Professor,"Molecular aspects of viral replication, pathogenesis, and evolution. The major focus of the laboratory is the retrovirus, equine infectious anemia virus. EIAV studies include evolution of virulence during rapid virus passage, modification of cell signaling pathways mediated by viral glycoproteins, effects of proinflammatory cytokines on virus replication and disease, and detailed mapping of EIAV virulence determinants. We also study the recently discovered avian bornavirus, etiological agent of proventricular dilatation disease of parrots, in conjunction with colleagues from the Schubot center.",Associate Professor,Veterinary Pathobiology,https://scholars.library.tamu.edu/vivo/display/n97844057
Sang Jin,Suh,Associate Professor,"There are several research foci in the Suh laboratory. First, we are interested in elucidating and understanding the molecular mechanisms involved in the survival of pathogenic bacteria in nature and the contribution of these mechanisms to aid these pathogens in their ability to cause human diseases.
Second, we are interested in developing peptide based biosensors for rapid detection of important bacterial pathogens. Our biosensors can detect pathogens in just minutes rather than hours or days of other approaches. Third, we are interested in genetic and metabolic engineering to develop bacterial cells into microbial factory for optimal production of value-added products.",Associate Professor,Biomedical Sciences,https://scholars.library.tamu.edu/vivo/display/nb2c8b3d4
Zhilei,Chen,Associate Professor,"The Chen Medicinal Protein Lab aims to accelerate the discovery, development and clinical translation of protein therapeutics through innovative protein engineering research. We believe that better medicine enables a higher quality of living, and protein engineers are charged to create the better medicine for today and tomorrow. We are particularly interested in the creation and engineering of affordable protein therapeutics to prevent and treat infectious diseases and cancer.",Associate Professor,Microbial Pathogenesis and Immunology,https://scholars.library.tamu.edu/vivo/display/nc9a6c3ae
Zachary,Adelman,Professor,,Associate Professor,Entomology,https://scholars.library.tamu.edu/vivo/display/ndc81a8e5
Dekai,Zhang,Associate Professor,"Our laboratory is studying the molecular mechanisms of innate immune recognition by identification and analysis of receptors involved in innate immune recognition and activated signaling pathways. We are particularly interested in the recently identified family of Toll-like receptors, which play a critical role in the mounting of innate immune responses. We wish to understand the mechanisms by which TLRs recognize different pathogen associate molecular patterns (PAMPs), as well as the regulatory mechanisms of TLR signal pathways that lead to NF- k B activation. We are also interested in studying the important links between chronic infection, inflammation and cancer by utilizing biochemical as well as whole animal approaches.",Associate Professor||Associate Professor,Center for Infectious and Inflammatory Diseases||Institute of Biosciences and Technology,https://scholars.library.tamu.edu/vivo/display/ndf8a94d4
Deborah,Siegele,Associate Professor,"Phenotypes are observable characteristics of an organism that result from the expression of a particular genotype in a particular environment. Examples of phenotypic traits in microbes are motility, sporulation, ability to perform anaerobic respiration, and resistance/sensitivity to an antibiotic.
Until recently, phenotypic information has been captured as free text descriptions in research papers. Ambiguities in natural language confound attempts to retrieve information across sources. For example, ""serotype"" and ""serovar"" both refer to the same phenotype, but a simple text-based query with either word alone would miss the other. Or a single term, such as ""sporulation"" is used to refer to multiple, distinct processes in different organisms. Issues such as these hamper the ability to integrate different phenotypic data sets for the same organism or to use phenotypic information in one organism to predict possible phenotypes in another organism. Ideally, phenotype information should be stored in a consistent, computable format for ease of data integration and mining.
Controlled vocabularies are used to provide both consistent terminology and a structured data format for the capture of biological information. Ontologies are controlled vocabularies of defined terms with unique identifiers and precise relationships to each other. There are phenotype ontologies available for many eukaryotic organisms, including fungi. However, when the OMP project was initiated, none of the existing ontologies was appropriate to comprehensively capture phenotypes for Bacteria or Archaea or to enable comparisons across microbial taxa.
The Siegele lab and our collaborators at TAMU and the Univ. of Maryland (IGS) are developing a formal Ontology of Microbial Phenotypes (OMP). Our lab is focused on term development and annotating microbial phenotypes. OMP can be accessed at microbialphenotypes.org. Releases of OMP are available at github.com/microbialphenotypes.",Associate Professor,Biology,https://scholars.library.tamu.edu/vivo/display/ne333d587
James,Erickson,Associate Professor,"Alternative developmental fates are often determined by small differences in the concentrations of signaling molecules. In many cases, cells respond to these signals within narrowly defined temporal windows and are unresponsive to the same signal molecules at other times in development. A number of aspects of Drosophila sex determination make it an ideal experimental system to study how strict temporal controls and small quantitative differences in protein concentration can elicit different developmental fates.",Associate Professor,Biology,https://scholars.library.tamu.edu/vivo/display/nf4575bc8