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2013

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Oncogenic Transformation Of Mammary Epithelial Cells By Transforming Growth Factor Beta Independent Of Mammary Stem Cell Regulation, Karen A. Dunphy, Jae-Hong Seo, Daniel J. Kim, Amy L. Roberts, James Direnzo, Amanda Balboni Jul 2013

Oncogenic Transformation Of Mammary Epithelial Cells By Transforming Growth Factor Beta Independent Of Mammary Stem Cell Regulation, Karen A. Dunphy, Jae-Hong Seo, Daniel J. Kim, Amy L. Roberts, James Direnzo, Amanda Balboni

Dartmouth Scholarship

BackgroundTransforming growth factor beta (TGFβ) is transiently increased in the mammary gland during involution and by radiation. While TGFβ normally has a tumour suppressor role, prolonged exposure to TGFβ can induce an oncogenic epithelial to mesenchymal transition (EMT) program in permissive cells and initiate the generation of cancer stem cells. Our objective is to mimic the transient exposure to TGFβ during involution to determine the persistent effects on premalignant mammary epithelium.

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The Discrimination Power Of Structural Superindices, Matthias Dehmer, Abbe Mowshowitz Jul 2013

The Discrimination Power Of Structural Superindices, Matthias Dehmer, Abbe Mowshowitz

Publications and Research

In this paper, we evaluate the discrimination power of structural superindices. Superindices for graphs represent measures composed of other structural indices. In particular, we compare the discrimination power of the superindices with those of individual graph descriptors. In addition, we perform a statistical analysis to generalize our findings to large graphs.

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A Joint Matrix Completion And Filtering Model For Influenza Serological Data Integration., Xiao-Tong Yuan, Tong Zhang, Xiu-Feng Wan Jul 2013

A Joint Matrix Completion And Filtering Model For Influenza Serological Data Integration., Xiao-Tong Yuan, Tong Zhang, Xiu-Feng Wan

CVM Publications

Antigenic characterization based on serological data, such as Hemagglutination Inhibition (HI) assay, is one of the routine procedures for influenza vaccine strain selection. In many cases, it would be impossible to measure all pairwise antigenic correlations between testing antigens and reference antisera in each individual experiment. Thus, we have to combine and integrate the HI tables from a number of individual experiments. Measurements from different experiments may be inconsistent due to different experimental conditions. Consequently we will observe a matrix with missing data and possibly inconsistent measurements. In this paper, we develop a new mathematical model, which we refer to …

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Metaphor Use In Interpersonal Communication Of Body Perception In The Context Of Breast Cancer, Jennifer Mary Fillion Jul 2013

Metaphor Use In Interpersonal Communication Of Body Perception In The Context Of Breast Cancer, Jennifer Mary Fillion

Dissertations and Theses

Female breast cancer patients are often confused, frustrated, and devastated by changes occurring in their bodies and the treatment process. Many women express frustration and concern with the inability to know what the next phases of their life will bring. Previous research also states that many women struggle to communicate with others about treatment as well as side effects. This research examined how woman are use metaphors to describe their experience with breast cancer, specifically throughout the treatment period related to body image struggles. I qualitatively conducted interviews with women who were either currently in treatment or just finishing. My …

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Natural Area Stewardship Volunteers: Motivations, Attitudes, Behaviors, Corinne Handelman Jul 2013

Natural Area Stewardship Volunteers: Motivations, Attitudes, Behaviors, Corinne Handelman

Dissertations and Theses

To better understand the value of those who engage in environmental stewardship of natural areas, we studied volunteer steward's motivation to participate, their sustainable behaviors and attitudes toward stewardship-related constructs. Specifically, we designed and conducted a survey of volunteers who work as stewards in urban natural areas in Portland, Oregon. We hypothesize that as volunteer frequency increases: participants will be more motivated to participate for environmental reasons, volunteers will be more likely to feel a strong connection to the stewardship site, participants will be more likely to engage in public pro-environmental behaviors, and their level of environmental literacy will increase. …

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Estradiol Regulation Of Nucleotidases In Female Reproductive Tract Epithelial Cells And Fibroblasts, Zheng Shen, John V. Fahey, Jack E. Bodwell, Marta Rodriguez-Garcia, Richard M. Rossoll, Sarah G. Crist, Mickey V. Patel, Charles R. Wira Jul 2013

Estradiol Regulation Of Nucleotidases In Female Reproductive Tract Epithelial Cells And Fibroblasts, Zheng Shen, John V. Fahey, Jack E. Bodwell, Marta Rodriguez-Garcia, Richard M. Rossoll, Sarah G. Crist, Mickey V. Patel, Charles R. Wira

Dartmouth Scholarship

The use of topical and oral adenosine derivatives in HIV prevention that need to be maintained in tissues and cells at effective levels to prevent transmission prompted us to ask whether estradiol could influence the regulation of catabolic nucleotidase enzymes in epithelial cells and fibroblasts from the upper and lower female reproductive tract (FRT) as these might affect cellular TFV-DP levels. Epithelial cells and fibroblasts were isolated from endometrium (EM), endocervix (CX) and ectocervix (ECX) tissues from hysterectomy patients, grown to confluence and treated with or without estradiol prior to RNA isolation. The expression of nucleotidase (NT) genes was measurable …

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Summer: Sun, Fun, And Science, Melanie Plenda Jul 2013

Summer: Sun, Fun, And Science, Melanie Plenda

UNH Today Archive

No abstract provided.

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Heavenly Science: Student Balloons Video Earth Below, Space Above, Unh Communications And Public Affairs Jul 2013

Heavenly Science: Student Balloons Video Earth Below, Space Above, Unh Communications And Public Affairs

UNH Today Archive

No abstract provided.

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The Effects Of Saltwater Intrusion On Methanogen Community Abundance, Structure, And Activity, Jaimie Gillespie Jul 2013

The Effects Of Saltwater Intrusion On Methanogen Community Abundance, Structure, And Activity, Jaimie Gillespie

Theses and Dissertations

Tidal freshwater wetlands (TFW) are at significant risk of loss or alteration due to global climate change, and saltwater intrusion from sea level rise is of particular concern for these habitats due to their proximity to coastal areas. A space-for-time model was used to investigate the effects of saltwater intrusion on soil methanogen communities along naturally occurring salinity gradients on the Waccamaw, James, and Hudson Rivers. Amplification of the methyl coenzyme-M reductase (mcrA) functional gene was used in qPCR, reverse transcription qPCR, and T-RFLP to measure the abundance, activity, and community composition of soil methanogens. Both the abundance and activity …

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Following In North Carolina's Footsteps: California's Challenge In Compensating Its Victims Of Compulsory Sterilization, Katherine A. West Jul 2013

Following In North Carolina's Footsteps: California's Challenge In Compensating Its Victims Of Compulsory Sterilization, Katherine A. West

Santa Clara Law Review

No abstract provided.

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Post-Audit Verification Of The Model Swmm For Low Impact Development, David J. Rosa Jul 2013

Post-Audit Verification Of The Model Swmm For Low Impact Development, David J. Rosa

Master's Theses

No abstract provided.

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Association Study Of Common Genetic Variants And Hiv- 1 Acquisition In 6,300 Infected Cases And 7,200 Controls, Paul J. Mclaren, Cedric Coulonges, Stephan Ripke, Leonard H. Van Den Berg, Susan Buchbinder, Mary Carrington, Andrea Cossarizza, Judith Dalmau, Steven G. Deeks, Olivier Delaneau, Andrea De Luca, James J. Goedert, David W. Haas, Joshua T. Herbeck, Sekar Kathiresan, Gregory D. Kirk, Olivier Lambotte, Ma Luo, Simon Mallal, Danielle Van Manen, Javier Martinez-Picado, Florencia Pereyra, Francis A. Plummer, Guido Poli, Ying Qi, Pierre Rucart, Manj S. Sandhu, Patrick R. Shea, Hanneke Schuitemaker, Ioannis Theodorou, Fredrik Vannberg, Jan Veldink, Bruce D. Walker, Amy C. Weintrob, Cheryl Winkler, Steven M. Wolinsky, Amalio Telenti, David B. Goldstein, Paul I. W. De Bakker, Jean-Francois Zagury, Jacques Fellay Jul 2013

Association Study Of Common Genetic Variants And Hiv- 1 Acquisition In 6,300 Infected Cases And 7,200 Controls, Paul J. Mclaren, Cedric Coulonges, Stephan Ripke, Leonard H. Van Den Berg, Susan Buchbinder, Mary Carrington, Andrea Cossarizza, Judith Dalmau, Steven G. Deeks, Olivier Delaneau, Andrea De Luca, James J. Goedert, David W. Haas, Joshua T. Herbeck, Sekar Kathiresan, Gregory D. Kirk, Olivier Lambotte, Ma Luo, Simon Mallal, Danielle Van Manen, Javier Martinez-Picado, Florencia Pereyra, Francis A. Plummer, Guido Poli, Ying Qi, Pierre Rucart, Manj S. Sandhu, Patrick R. Shea, Hanneke Schuitemaker, Ioannis Theodorou, Fredrik Vannberg, Jan Veldink, Bruce D. Walker, Amy C. Weintrob, Cheryl Winkler, Steven M. Wolinsky, Amalio Telenti, David B. Goldstein, Paul I. W. De Bakker, Jean-Francois Zagury, Jacques Fellay

Biology Faculty Articles

Multiple genome-wide association studies (GWAS) have been performed in HIV-1 infected individuals, identifying common genetic influences on viral control and disease course. Similarly, common genetic correlates of acquisition of HIV-1 after exposure have been interrogated using GWAS, although in generally small samples. Under the auspices of the International Collaboration for the Genomics of HIV, we have combined the genome-wide single nucleotide polymorphism (SNP) data collected by 25 cohorts, studies, or institutions on HIV-1 infected individuals and compared them to carefully matched population-level data sets (a list of all collaborators appears in Note S1 in Text S1). After imputation using the …

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Lineage Analysis Of The Late Otocyst Stage Mouse Inner Ear By Transuterine Microinjection Of A Retroviral Vector Encoding Alkaline Phosphatase And An Oligonucleotide Library., Han Jiang, Lingyan Wang, Kevin T. Beier, Constance L. Cepko, Donna M. Fekete, John V. Brigande Jul 2013

Lineage Analysis Of The Late Otocyst Stage Mouse Inner Ear By Transuterine Microinjection Of A Retroviral Vector Encoding Alkaline Phosphatase And An Oligonucleotide Library., Han Jiang, Lingyan Wang, Kevin T. Beier, Constance L. Cepko, Donna M. Fekete, John V. Brigande

Department of Biological Sciences Faculty Publications

The mammalian inner ear subserves the special senses of hearing and balance. The auditory and vestibular sensory epithelia consist of mechanically sensitive hair cells and associated supporting cells. Hearing loss and balance dysfunction are most frequently caused by compromise of hair cells and/or their innervating neurons. The development of gene- and cell-based therapeutics will benefit from a thorough understanding of the molecular basis of patterning and cell fate specification in the mammalian inner ear. This includes analyses of cell lineages and cell dispersals across anatomical boundaries (such as sensory versus nonsensory territories). The goal of this study was to conduct …

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Internal Pressure Sculpting And Speleogenesis In Autogenic Karst, Bryan Booth Jul 2013

Internal Pressure Sculpting And Speleogenesis In Autogenic Karst, Bryan Booth

KIP Articles

Understanding the ongoing speleogenic processes that produce sinkholes and control the vital drinking water supplies of Florida and much else of the world is necessary research. This article (and the associated poster presentation) discusses theoretical processes that may act in addition to mass dissolution kinetics in producing voids, conduits and caves in autogenic karst landforms. Possible theoretical factors that affect these speleogenic processes are: microscopic mixing corrosion (low constant flow, low constant flow against current, temperature-induced mixing corrosion, and pressure-induced mixing corrosion in karst matrix), random dissolution models, simulation of gravity-induced microscopic breakdown, and storm surge effects. Finally, a theoretical …

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P2x4 Assembles With P2x7 And Pannexin-1 In Gingival Epithelial Cells And Modulates Reactive Oxygen Species Production And Inflammasome Activation, Shu-Chen Hung, Chul Hee Choi, Najwane Said-Sadier, Larry Johnson, Kalina Rosenova Atanasova, Hanen Sellami, Özlem Yilmaz, David M. Ojcius Jul 2013

P2x4 Assembles With P2x7 And Pannexin-1 In Gingival Epithelial Cells And Modulates Reactive Oxygen Species Production And Inflammasome Activation, Shu-Chen Hung, Chul Hee Choi, Najwane Said-Sadier, Larry Johnson, Kalina Rosenova Atanasova, Hanen Sellami, Özlem Yilmaz, David M. Ojcius

All Dugoni School of Dentistry Faculty Articles

We have previously reported that Porphyromonas gingivalis infection of gingival epithelial cells (GEC) requires an exogenous danger signal such as ATP to activate an inflammasome and caspase-1, thereby inducing secretion of interleukin (IL)-1β. Stimulation with extracellular ATP also stimulates production of reactive oxygen species (ROS) in GEC. However, the mechanism by which ROS is generated in response to ATP, and the role that different purinergic receptors may play in inflammasome activation, is still unclear. In this study, we revealed that the purinergic receptor P2X4 is assembled with the receptor P2X7 and its associated pore, pannexin-1. ATP induces ROS …

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Exploring Electric Field-Induced Changes In Astrocyte Behavior, Doel Dhar Jul 2013

Exploring Electric Field-Induced Changes In Astrocyte Behavior, Doel Dhar

Theses and Dissertations

Electric fields, which are generated by the movement of charged ions across membranes, are found in all biological systems and can influence cellular components ranging from amino acids to biological macromolecules. Physiological field strengths range from 1 – 200 mV/mm, and these electric fields are especially elevated at sites of cellular growth during development and regeneration. It has previously been demonstrated that elevated electric fields induce alignment of astrocyte processes in vitro, enhancing the rate of neurite outgrowth. It is believed that electric fields of varying physiological strength affect other astrocytic responses associated with regeneration. To characterize the duration over …

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The Influences Of Race And Gender On The Leadership Of African American Female Principals Of Predominantly White Elementary Schools, Shauna Angelina Carter Jul 2013

The Influences Of Race And Gender On The Leadership Of African American Female Principals Of Predominantly White Elementary Schools, Shauna Angelina Carter

Seton Hall University Dissertations and Theses (ETDs)

No abstract provided.

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What Should Science Reference Librarians Do With Books Classified As Science That Aren't Science: Revisiting The Well-Known Worlds In Collision By Immanuel Velikovsky As A Case Study., Philip Barnett Ph.D. Jul 2013

What Should Science Reference Librarians Do With Books Classified As Science That Aren't Science: Revisiting The Well-Known Worlds In Collision By Immanuel Velikovsky As A Case Study., Philip Barnett Ph.D.

Publications and Research

Students browsing the science sections in their library may naturally assume that all of the books are scientifically valid and accurate. Science collections may also contain books that may not now be accurate, either because they are out-of-date, or never belonged there. While out-of-date knowledge can sometimes be beneficial, invalid books can only mislead. The well-known book Worlds in Collision by Immanuel Velikovsky is a case study on how librarians can handle such books. For these books, an explanatory note can be placed on the book's online catalog entry or even in the book. The book can also be weeded …

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Anthropocosmic Resonance In Post-Mao Chinese Environmental Literature, Visser Robin Jul 2013

Anthropocosmic Resonance In Post-Mao Chinese Environmental Literature, Visser Robin

Theoretical Studies in Literature and Art

In this article I examine philosophical ideas in 1980s Chinese environmental literature that, while espousing perspectives on human relations to the natural environment derived from Daoism, animism, and Buddhism primarily convey a syncretic humanist philosophy of Neo-Confucian idealism. I analyze three influential post-Mao literary works that appropriate ancient philosophical thought and praxis to critique unsustainable deforestation during the intensifying neoliberal development characterizing the Deng era. Ah Cheng's 1985 novella, King of Trees is one of the earliest examples of post-Mao ecological consciousness. Xu Gang's 1987 Woodcutter, Wake Up! launched the eco-reportage movement by appealing to the moral center of the …

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Distributed Multi-Objective Evolutionary Algorithm For Dynamic Multi-Characteristic Social Networks Clustering, Mustafa Hussein Hajeer Jul 2013

Distributed Multi-Objective Evolutionary Algorithm For Dynamic Multi-Characteristic Social Networks Clustering, Mustafa Hussein Hajeer

Electronic Theses and Dissertations Archive

In this information era, social media and online social networks have become a huge data source. The social network perspective provides a clear way of analyzing the structure of whole social entities. These social media and online social networks are a virtual representation of real life as they represent real life relations between social actors (people). The primary focus of this study is to propose an algorithm and its implementation for clustering of multi-characteristic dynamic graphs in general, and multi-characteristic dynamic online social networks in specific. Social networks are typically stored as graph data (edges lists mostly), and dynamically changes …

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Social-Ecological Dynamics Of Coral Reef Resource Use And Management, Sarah J. Freed Jul 2013

Social-Ecological Dynamics Of Coral Reef Resource Use And Management, Sarah J. Freed

Dissertations and Theses

This dissertation investigates social and ecological factors that facilitate effective management of coral reefs as social-ecological systems. Meta-analytical and field-based methods were employed to examine current management challenges and identify strategies that improve management effectiveness and coral reef health. A meta-analysis was used to evaluate biological indicators of reef health in relation to the types of fishing regulations in place (no-take areas, gear restriction areas, and periodic closures) and the actor groups (community-based, co-management, state, private) involved in management efforts for coral reef fisheries throughout the world. Other than enhancement of fish biomass within no-take areas that was significantly greater …

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Incision History Of Glenwood Canyon, Colorado, Usa, From The Uranium-Series Analyses Of Water-Table Speleothems, Victor J. Polyak, Harvey R. Duchene, Donald G. Davis, Arthur N. Palmer, Margaret V. Palmer, Yemane Asmerom Jul 2013

Incision History Of Glenwood Canyon, Colorado, Usa, From The Uranium-Series Analyses Of Water-Table Speleothems, Victor J. Polyak, Harvey R. Duchene, Donald G. Davis, Arthur N. Palmer, Margaret V. Palmer, Yemane Asmerom

International Journal of Speleology

Uranium-series analyses of water-table-type speleothems from Glenwood Cavern and “cavelets” near the town of Glenwood Springs, Colorado, USA, yield incision rates of the Colorado River in Glenwood Canyon for the last ~1.4 My. The incision rates, calculated from dating cave mammillary and cave folia calcite situated 65 and 90 m above the Colorado River, are 174 ± 30 m/My for the last 0.46 My and 144 ± 30 m/My for the last 0.62 My, respectively. These are consistent with incision rates determined from nearby volcanic deposits. In contrast, δ234U model ages (1.39 ± 0.25 My; 1.36 ± 0.25 …

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Comparative Microbial Community Composition From Secondary Carbonate (Moonmilk) Deposits: Implications For The Cansiliella Servadeii Cave Hygropetric Food Web, Annette Summers Engel, Maurizio G. Paoletti, Mattia Beggio, Luca Dorigo, Alberto Pamio, Tiziano Gomiero, Claudio Furlan, Mauro Brilli, Angelo Leandro Dreon, Roberto Bertoni, Andrea Squartini Jul 2013

Comparative Microbial Community Composition From Secondary Carbonate (Moonmilk) Deposits: Implications For The Cansiliella Servadeii Cave Hygropetric Food Web, Annette Summers Engel, Maurizio G. Paoletti, Mattia Beggio, Luca Dorigo, Alberto Pamio, Tiziano Gomiero, Claudio Furlan, Mauro Brilli, Angelo Leandro Dreon, Roberto Bertoni, Andrea Squartini

International Journal of Speleology

The microbial diversity of moonmilk, a hydrated calcium carbonate speleothem, was evaluated from two Italian caves to provide context for the food web of highly-specialized troglobitic beetles, Cansiliella spp. (Leptodirinae), with distinctive carbon and nitrogen isotope values indicative of a novel food source. The moonmilk and associated percolating waters had low to no extractable chlorophyll, with an average organic C:N ratio of 9, indicating limited allochthonous input and a significant contribution from microbial biomass. The biomass from moonmilk was estimated to be ~104 micro- and meiofaunal individuals per m2 and ~107 microbial cells/ml. Betaproteobacteria dominated the …

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Studies Of Molecular Encapsulation And Preparation Of Novel Cage Molecules, Yanhua Qiu Jul 2013

Studies Of Molecular Encapsulation And Preparation Of Novel Cage Molecules, Yanhua Qiu

Open Access Dissertations

This dissertation deals with studies of molecular encapsulation and preparation of novel molecular cages. The author begins in Chapter 1 with a short discussion of molecular encapsulation and some of the molecular hosts such as cavitands, carcerands, hemicarcerands, hexamericresorcinarene capsules and molecular cages and then presents more introductory material on a deep cavity cavitand and cucurbit[7]uril since the author’s research is majorly based on these two molecular hosts. The author is interested in the electrochemistry studies of redox-active guests and their electrochemical kinetic changes before and upon encapsulation in aqueous solution so as to mimick the behavior of redox proteins …

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Crystal Structure Of The N-Acetyltransferase Domain Of Human N-Acetyl-L-Glutamate Synthase In Complex With N-Acetyl-L-Glutamate Provides Insights Into Its Catalytic And Regulatory Mechanisms, Gengxiang Zhao, Zhongmin Jin, Norma M. Allewell, Mendel Tuchman, Dashuang Shi Jul 2013

Crystal Structure Of The N-Acetyltransferase Domain Of Human N-Acetyl-L-Glutamate Synthase In Complex With N-Acetyl-L-Glutamate Provides Insights Into Its Catalytic And Regulatory Mechanisms, Gengxiang Zhao, Zhongmin Jin, Norma M. Allewell, Mendel Tuchman, Dashuang Shi

Pediatrics Faculty Publications

N-acetylglutamate synthase (NAGS) catalyzes the conversion of AcCoA and L-glutamate to CoA and N-acetyl-L-glutamate (NAG), an obligate cofactor for carbamyl phosphate synthetase I (CPSI) in the urea cycle. NAGS deficiency results in elevated levels of plasma ammonia which is neurotoxic. We report herein the first crystal structure of human NAGS, that of the catalyticN-acetyltransferase (hNAT) domain with N-acetyl-L-glutamate bound at 2.1 Å resolution. Functional studies indicate that the hNAT domain retains catalytic activity in the absence of the amino acid kinase (AAK) domain. Instead, the major functions of the AAK domain appear to be providing …

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Karen Capato V. Comm Social Security Jul 2013

Karen Capato V. Comm Social Security

2013 Decisions

USDC for the District of New Jersey

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A Passion For Haiti, Erin Garrett Jul 2013

A Passion For Haiti, Erin Garrett

University of Mississippi News

Medical mission turns into lifelong commitment for pharmacy and pre-med students

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An Erp Study Of The Processing Of Common And Decimal Fractions: How Different They Are, Li Zhang, Qi Wang, Chongde Lin, Cody Ding, Xinlin Zhou Jul 2013

An Erp Study Of The Processing Of Common And Decimal Fractions: How Different They Are, Li Zhang, Qi Wang, Chongde Lin, Cody Ding, Xinlin Zhou

Education Sciences and Professional Programs Faculty Works

This study explored event-related potential (ERP) correlates of common fractions (1/5) and decimal fractions (0.2). Thirteen subjects performed a numerical magnitude matching task under two conditions. In the common fraction condition, a nonsymbolic fraction was asked to be judged whether its magnitude matched the magnitude of a common fraction; in the decimal fraction condition, a nonsymbolic fraction was asked to be matched with a decimal fraction. Behavioral results showed significant main effects of condition and numerical distance, but no significant interaction of condition and numerical distance. Electrophysiological data showed that when nonsymbolic fractions were compared to common fractions, they displayed …

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An Erp Study Of The Processing Of Common And Decimal Fractions: How Different They Are, Li Zhang, Qi Wang, Chongde Lin, Cody Ding, Xinlin Zhou Jul 2013

An Erp Study Of The Processing Of Common And Decimal Fractions: How Different They Are, Li Zhang, Qi Wang, Chongde Lin, Cody Ding, Xinlin Zhou

Education Sciences and Professional Programs Faculty Works

This study explored event-related potential (ERP) correlates of common fractions (1/5) and decimal fractions (0.2). Thirteen subjects performed a numerical magnitude matching task under two conditions. In the common fraction condition, a nonsymbolic fraction was asked to be judged whether its magnitude matched the magnitude of a common fraction; in the decimal fraction condition, a nonsymbolic fraction was asked to be matched with a decimal fraction. Behavioral results showed significant main effects of condition and numerical distance, but no significant interaction of condition and numerical distance. Electrophysiological data showed that when nonsymbolic fractions were compared to common fractions, they displayed …

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Effect Of Diurnal Fluctuating Versus Constant Temperatures On Germination Of 445 Species From The Eastern Tibet Plateau, Kun Liu, Jerry M. Baskin, Carol C. Baskin, Haiyan Bu, Guozhen Du, Miaojun Ma Jul 2013

Effect Of Diurnal Fluctuating Versus Constant Temperatures On Germination Of 445 Species From The Eastern Tibet Plateau, Kun Liu, Jerry M. Baskin, Carol C. Baskin, Haiyan Bu, Guozhen Du, Miaojun Ma

Biology Faculty Publications

Germination response to fluctuating temperatures is a mechanism by which seeds detect gaps in vegetation canopies and depth of burial in soil, and it is very important for plants. Thus, studies on the effect of fluctuating temperature on germination at the community level are valuable for understanding community structure and biodiversity maintenance. We determined the effects of two alternating temperatures (5/25°C and 10/20°C) and one constant temperature (15°C) on seed germination of 445 species in a grassland community on the eastern Tibet Plateau. Seed mass was determined for each species, and data on habitat, type of life cycle, altitudinal distribution …

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