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Genome Size Is A Strong Predictor Of Root Meristem Growth Rate, Adam Gruner, Nathan Hoverter, Tylia Smith, Charles A. Knight 2010 California Polytechnic State University - San Luis Obispo

Genome Size Is A Strong Predictor Of Root Meristem Growth Rate, Adam Gruner, Nathan Hoverter, Tylia Smith, Charles A. Knight

Biological Sciences

Variation in genome size (GS) has been linked to several facets of the plant phenotype. Recently it was shown that GS is significantly correlated with cell size and the duration of the cell cycle. Here we test the hypothesis that GS might also be a predictor of apical root meristem growth rate (RMGR). We studied eight species of eudicots with varying GS using time-lapse microscopic image analysis. A significant negative exponential relationship was observed between GS and RMGR. Our results show significantly decreased RMGR for large genome species. This relationship represents a significant consequence of GS expansion in plants and ...


The Proteomic Response Of The Mussel Congeners Mytilus Gallaprovincialis And M. Trossulus To Acute Heat Stress: Implications For Thermal Tolerance Limits And Metabolic Costs Of Thermal Stress, Lars Tomanek, Marcus J. Zuzow 2010 California Polytechnic State University, San Luis Obispo

The Proteomic Response Of The Mussel Congeners Mytilus Gallaprovincialis And M. Trossulus To Acute Heat Stress: Implications For Thermal Tolerance Limits And Metabolic Costs Of Thermal Stress, Lars Tomanek, Marcus J. Zuzow

Biological Sciences

The Mediterranean blue mussel, Mytilus galloprovincialis, an invasive species in California, has displaced the more heat-sensitive native congener, Mytilus trossulus, from its former southern range, possibly due to climate change. By comparing the response of their proteomes to acute heat stress we sought to identify responses common to both species as well as differences that account for greater heat tolerance in the invasive. Mussels were acclimated to 13°C for four weeks and exposed to acute heat stress (24°C, 28°C and 32°C) for 1 h and returned to 13°C to recover for 24 h. Using two-dimensional ...


The Spread Of The Parthenogenetic Marbled Crayfish, Marmorkrebs (Procambarus Sp.), In The North American Pet Trade, Zen Faulkes 2010 The University of Texas Rio Grande Valley

The Spread Of The Parthenogenetic Marbled Crayfish, Marmorkrebs (Procambarus Sp.), In The North American Pet Trade, Zen Faulkes

Biology Faculty Publications and Presentations

The parthenogenetic marbled crayfish Marmorkrebs was discovered in the pet trade in Europe in the 1990s. Since then, its distribution through the pet trade has spread from Europe to other continents, including North America. North American pet owners were surveyed online with the aims of trying to track when Marmorkrebs entered the North American pet trade, the ways in which it spread through the pet trade, and how widely distributed Marmorkrebs are throughout the continent. Marmorkrebs have been in the North American pet trade since at least 2004, with the number of people increasing every year. While many Marmorkrebs are ...


Trapping Mammals In A Cautious World: The Effect Of Disinfectants On Trap Success, James Wilson, K. E. Mabry 2010 University of Nebraska at Omaha

Trapping Mammals In A Cautious World: The Effect Of Disinfectants On Trap Success, James Wilson, K. E. Mabry

Biology Faculty Publications

Disinfecting traps that have captured small mammals is one recommendation for preventing occurrence of hantavirus infection; however, the potential effects of disinfection on small mammal trappability have not been investigated thoroughly. We conducted an experiment to compare the effects of 2 disinfectants (Lysol® and household bleach) on the trappability of 4 small mammal species (Peromyscus maniculatus, Neotamias spp., and Spermophilus lateralis). We established triplicate trap grids in 2 forest types (red fir and mixed conifer), each consisting of a 6 × 6 array of Sherman live-traps placed at 10-m intervals. Traps were given 1 of 3 treatments: control (water), Lysol, or ...


Zinc Oxide Nanoparticle Disruption Of Store-Operated Calcium Entry In A Muscarinic Receptor Signaling Pathway, Hsiu-Jen Wang 2010 Missouri University of Science and Technology

Zinc Oxide Nanoparticle Disruption Of Store-Operated Calcium Entry In A Muscarinic Receptor Signaling Pathway, Hsiu-Jen Wang

Masters Theses

"The influences of ZnO nanoparticles on cellular responses to activation of muscarinic receptors were studied in Chinese hamster ovary cells expressing the human M3 muscarinic acetylcholine receptor. ZnO particles (20 nm) induced cytotoxicity in a time and concentration-dependent manner: following a 24 h exposure, toxicity was minimal at concentrations below 20 µg/ml but virtually complete at concentrations above 28 µg/ml. ZnO particles did not affect antagonist binding to M3 receptors or allosteric ligand effects, but increased agonist binding affinity while eliminating guanine nucleotide sensitivity. At a noncytotoxic concentration (10 µg/ml), ZnO increased resting [Ca²⁺]i from 40 ...


Adaptive Evolution And Inherent Tolerance To Extreme Thermal Environments, Jennifer Cox, Alyxandria Schubert, Michael Travisano, Catherine Putonti 2010 Loyola University Chicago

Adaptive Evolution And Inherent Tolerance To Extreme Thermal Environments, Jennifer Cox, Alyxandria Schubert, Michael Travisano, Catherine Putonti

Bioinformatics Faculty Publications

Background

When introduced to novel environments, the ability for a species to survive and rapidly proliferate corresponds with its adaptive potential. Of the many factors that can yield an environment inhospitable to foreign species, phenotypic response to variation in the thermal climate has been observed within a wide variety of species. Experimental evolution studies using bacteriophage model systems have been able to elucidate mutations, which may correspond with the ability of phage to survive modest increases/decreases in the temperature of their environment.

Results

Phage ΦX174 was subjected to both elevated (50°C) and extreme (70°C+) temperatures for anywhere ...


Evolution Of The Sequence Composition Of Flaviviruses, Alyxandria M. Schubert, Catherine Putonti 2010 Loyola University Chicago

Evolution Of The Sequence Composition Of Flaviviruses, Alyxandria M. Schubert, Catherine Putonti

Bioinformatics Faculty Publications

The adaption of pathogens to their host(s) is a major factor in the emergence of infectious disease and the persistent survival of many of the infectious diseases within the population. Since many of the smaller viral pathogens are entirely dependent upon host machinery, it has been postulated that they are under selection for a composition similar to that of their host. Analyses of sequence composition have been conducted for numerous small viral species including the Flavivirus genus. Examination of the species within this particular genus that infect vertebrate hosts revealed that sequence composition proclivities do not correspond with vector ...


Shelter Availability, Occupancy, And Residency In Size-Asymmetric Contests Between Rusty Crayfish, Orconectes Rusticus, Nathan M. Klar 2010 University of Kentucky

Shelter Availability, Occupancy, And Residency In Size-Asymmetric Contests Between Rusty Crayfish, Orconectes Rusticus, Nathan M. Klar

University of Kentucky Master's Theses

Contest outcomes are usually determined by differences in resource holding potential, the social histories of the combatants, and perceptions of resource value. One understudied aspect of gaining an advantage is the residency effect. Prior occupancy of a particular place can affect the knowledge and motivation of the resident. There could be a tactical advantage in knowing the terrain or an increased willingness to fight to maintain control of a familiar area. In this study we evaluated the importance of shelter residency effects relative to size differences between rusty crayfish (Orconectes rusticus) as potential competitors for access to shelter. The intensity ...


Building Better Scientists Through Cross-Disciplinary Collaboration In Synthetic Biology: A Report From The Genome Consortium For Active Teaching Workshop 2010, Michael J. Wolyniak, Consuelo J. Alvarez, Vidya Chandrasekaran, Theresa M. Grana, Andrea Holgado, Christopher J. Jones, Robert W. Morris, Anil L. Pereira, Joyce Stamm, Talitha M. Washington, Yixin Yang 2010 University of Mary Washington

Building Better Scientists Through Cross-Disciplinary Collaboration In Synthetic Biology: A Report From The Genome Consortium For Active Teaching Workshop 2010, Michael J. Wolyniak, Consuelo J. Alvarez, Vidya Chandrasekaran, Theresa M. Grana, Andrea Holgado, Christopher J. Jones, Robert W. Morris, Anil L. Pereira, Joyce Stamm, Talitha M. Washington, Yixin Yang

Biological Sciences Research

A common problem faced by primarily undergraduate institutions is the lack of funding and material support needed to adequately expose students to modern biology, including synthetic biology. To help alleviate this problem, the Genome Consortium for Active Teaching (GCAT) was founded in 2000 by Malcolm Campbell at Davidson College to bring genomics into the undergraduate curriculum. GCAT’s first tangible activity was to serve as a central clearinghouse both for the purchase and reading of DNA microarrays and for information on how to execute genomics experiments at undergraduate institutions. In response to the evolution of molecular biology in the last ...


Cellular And Molecular Dissection Of Pluripotent Adult Somatic Stem Cells In Planarians, Norito Shibata, Labib Rouhana, Kiyokazu Agata 2010 Wright State University - Main Campus

Cellular And Molecular Dissection Of Pluripotent Adult Somatic Stem Cells In Planarians, Norito Shibata, Labib Rouhana, Kiyokazu Agata

Biological Sciences Faculty Publications

Freshwater planarians, Plathelminthes, have been an intriguing model animal of regeneration studies for more than 100 years. Their robust regenerative ability is one of asexual reproductive capacity, in which complete animals develop from tiny body fragments within a week. Pluripotent adult somatic stem cells, called neoblasts, assure this regenerative ability. Neoblasts give rise to not only all types of somatic cells, but also germline cells. During the last decade, several experimental techniques for the analysis of planarian neoblasts at the molecular level, such as in situ hybridization, RNAi and fluorescence activated cell sorting, have been established. Moreover, information about genes ...


"The Status And Distribution Of Freshwater Crabs [Northern Africa]" , Neil Cumberlidge 2010 Northern Michigan University

"The Status And Distribution Of Freshwater Crabs [Northern Africa]" , Neil Cumberlidge

Book Sections/Chapters

No abstract provided.


Two New Species Of Freshwater Crabs From Mt. Elgon, East Africa With A Redescription Of Potamonautes Niloticus And Notes On Their Natural History" , Neil Cumberlidge, Paul F. Clark 2010 Northern Michigan University

Two New Species Of Freshwater Crabs From Mt. Elgon, East Africa With A Redescription Of Potamonautes Niloticus And Notes On Their Natural History" , Neil Cumberlidge, Paul F. Clark

Journal Articles

No abstract provided.


"A Redescription Of Potamonautes Loveni, A Medically Important Feshwater Crab From Western Kenya And Eastern Uganda, East Africa" , Neil Cumberlidge, Paul F. Clark 2010 Northern Michigan University

"A Redescription Of Potamonautes Loveni, A Medically Important Feshwater Crab From Western Kenya And Eastern Uganda, East Africa" , Neil Cumberlidge, Paul F. Clark

Journal Articles

No abstract provided.


"An Extra Embryonic Phase In The True Freshwater Crab Sinopotamon Yangtsekiense Bott" , H X. Wu, J Z. Xue, Neil Cumberlidge 2010 Northern Michigan University

"An Extra Embryonic Phase In The True Freshwater Crab Sinopotamon Yangtsekiense Bott" , H X. Wu, J Z. Xue, Neil Cumberlidge

Journal Articles

No abstract provided.


First Report Of The Developmental Changes Inside The Eggs Of The Chinese Freshwater Crab , J Xue, Y Liu, Neil Cumberlidge, H X. Wu 2010 Northern Michigan University

First Report Of The Developmental Changes Inside The Eggs Of The Chinese Freshwater Crab , J Xue, Y Liu, Neil Cumberlidge, H X. Wu

Journal Articles

No abstract provided.


The Impact And Shortfall Of Conservation On The Status Of The World's Vertebrates , M Hoffmann, C Hilton-Taylor, A Angulo, Monica Bohm PhD, SHM Bbutchart, K E. Carpenter, J Chanson, B Collen, N A. Cox, Neil Cumberlidge 2010 Zoological Society of London

The Impact And Shortfall Of Conservation On The Status Of The World's Vertebrates , M Hoffmann, C Hilton-Taylor, A Angulo, Monica Bohm Phd, Shm Bbutchart, K E. Carpenter, J Chanson, B Collen, N A. Cox, Neil Cumberlidge

Journal Articles

No abstract provided.


An Extra Embryonic Phase In The True Freshwater Crab Sinopotamon Yangtsekiense , H X. Wu, J Xue, Neil Cumberlidge 2010 Northern Michigan University

An Extra Embryonic Phase In The True Freshwater Crab Sinopotamon Yangtsekiense , H X. Wu, J Xue, Neil Cumberlidge

Journal Articles

No abstract provided.


Expression Of Hcmv Ie1 In The U87mg Cell Line Augments Resistance To Temozolomide , Richard A. Rovin, Johnathan Lawrence, Justin J. Segula, Robert J. Winn 2010 Northern Michigan University

Expression Of Hcmv Ie1 In The U87mg Cell Line Augments Resistance To Temozolomide , Richard A. Rovin, Johnathan Lawrence, Justin J. Segula, Robert J. Winn

Journal Articles

INTRODUCTION: Human cytomegalovirus (HCMV) DNA and protein are found in gliomas but not in normal brain or other primary brain tumors. The role of HCMV infection in glioma biology is unclear. While it is unlikely that HCMV infection causes glioma, viral proteins might impart a proliferative and antiapoptotic phenotype that confers a survival advantage. Does this oncomodulation translate into a clinically relevant effect in glioma cells? To answer this question, we compared the response of the U87IE1 and U87MG malignant glioma cell lines to temozolomide. U87IE1 cells are U87MG cells that have been genetically engineered to produce HCMV IE1 protein ...


"Diversity Of Species In Freshwater Systems", E Balian, I Harrison, S Butchart, P Chambers, J Cordeiro, Neil Cumberlidge, F de Moor, C Gascon, H James, V Kalkman, P P. van Dijk, D Yeo 2010 Northern Michigan University

"Diversity Of Species In Freshwater Systems", E Balian, I Harrison, S Butchart, P Chambers, J Cordeiro, Neil Cumberlidge, F De Moor, C Gascon, H James, V Kalkman, P P. Van Dijk, D Yeo

Book Sections/Chapters

No abstract provided.


Extracellular Matrix Of The Charophycean Green Algae, Sarah Nelson Kiemle 2010 Michigan Technological University

Extracellular Matrix Of The Charophycean Green Algae, Sarah Nelson Kiemle

Dissertations, Master's Theses and Master's Reports - Open

A comprehensive knowledge of cell wallstructure and function throughout the plant kingdom is essential to understanding cell wall evolution. The fundamental understanding of the charophycean green algal cell wall is broadening. The similarities and differences that exist between land plant and algal cell walls provide opportunities to understand plant evolution. A variety of polymers previously associated with higher plants were discovered in the charophycean green algae (CGA), including homogalacturonans, cross-linking glycans, arabinogalactan protein, β-glucans, and cellulose. The cellulose content of CGA cell walls ranged from 6% to 43%, with the higher valuescomparable to that found in the primary cell wall ...


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