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Articles 1 - 28 of 28
Full-Text Articles in Life Sciences
The Plant Structure Ontology, A Unified Vocabulary Of Anatomy And Morphology Of A Flowering Plant, Katica Ilic, Elizabeth A. Kellogg, Pankaj Jaiswal, Felipe Zapata, Peter F. Stevens, Leszek P. Vincent, Shulamit Avraham, Leonore Reiser, Anuradha Pujar, Martin M. Sachs, Noah T. Whitman, Susan R. Mccouch, Mary L. Schaeffer, Doreen H. Ware, Lincoln D. Stein, Seung Y. Rhee
The Plant Structure Ontology, A Unified Vocabulary Of Anatomy And Morphology Of A Flowering Plant, Katica Ilic, Elizabeth A. Kellogg, Pankaj Jaiswal, Felipe Zapata, Peter F. Stevens, Leszek P. Vincent, Shulamit Avraham, Leonore Reiser, Anuradha Pujar, Martin M. Sachs, Noah T. Whitman, Susan R. Mccouch, Mary L. Schaeffer, Doreen H. Ware, Lincoln D. Stein, Seung Y. Rhee
Peter Stevens
Cadherin-2 Participates In The Morphogenesis Of The Zebrafish Inner Ear, Sherry Babb-Clendenon, Yu-Chi Shen, Qin Liu, Katharyn E. Turner, M. Susan Mills, Greg W. Cook, Caroline A. Miller, Vincent H. Gattone Ii, Kate F. Barald, James A. Marrs
Cadherin-2 Participates In The Morphogenesis Of The Zebrafish Inner Ear, Sherry Babb-Clendenon, Yu-Chi Shen, Qin Liu, Katharyn E. Turner, M. Susan Mills, Greg W. Cook, Caroline A. Miller, Vincent H. Gattone Ii, Kate F. Barald, James A. Marrs
Qin Liu
Molecular mechanisms that control inner ear morphogenesis from the placode to the three-dimensional functional organ are not well understood. We hypothesize that cell-cell adhesion, mediated by cadherin molecules, contributes significantly to various stages of inner ear formation. Cadherin-2 (Cdh2) function during otic vesicle morphogenesis was investigated by examining morpholino antisense oligonucleotide knockdown and glass onion (glo) ( Cdh2 mutant) zebrafish embryos. Placode formation, vesicle cavitation and specification occurred normally, but morphogenesis of the otic vesicle was affected by Cdh2 deficiency: semicircular canals were reduced or absent. Phalloidin staining of the hair cell stereocillia demonstrated that cadherin-2 (cdh2) loss-of-function did not …
Quantitative Profiling Of Arabidopsis Polar Glycerolipids In Response To Phosphorus Starvation. Roles Of Phospholipases Dζ1 And Dζ2 In Phosphatidylcholine Hydrolysis And Digalactosyldiacylglycerol Accumulation In Phosphorus-Starved Plants, Xuemin Wang, Maoyin Li, Ruth Welti
Quantitative Profiling Of Arabidopsis Polar Glycerolipids In Response To Phosphorus Starvation. Roles Of Phospholipases Dζ1 And Dζ2 In Phosphatidylcholine Hydrolysis And Digalactosyldiacylglycerol Accumulation In Phosphorus-Starved Plants, Xuemin Wang, Maoyin Li, Ruth Welti
Xuemin (Sam) Wang
The Localized Dynamics Of A Ca2+Channel (30-Minute Talk), Borbala Mazzag, Christoper Tignanelli, Gregory D. Smith
The Localized Dynamics Of A Ca2+Channel (30-Minute Talk), Borbala Mazzag, Christoper Tignanelli, Gregory D. Smith
Borbala Mazzag
No abstract provided.
Unraveling The Mechanical Properties Of Composite Silk Threads Spun By Cribellate Orb-Weaving Spiders, Todd Blackledge, Cheryl Hayashi
Unraveling The Mechanical Properties Of Composite Silk Threads Spun By Cribellate Orb-Weaving Spiders, Todd Blackledge, Cheryl Hayashi
Todd A. Blackledge
Orb-web weaving spiders depend upon the mechanical performance of capture threads to absorb the energy of flying prey. Most orb-weavers spin wet capture threads with core fibers of flagelliform silk. These threads are extremely compliant and extensible due to the folding of their constituent proteins into molecular nanosprings and hydration by a surrounding coating of aqueous glue. In contrast, other orb-weavers use cribellate capture threads, which are composite structures consisting of core fibers of pseudoflagelliform silk surrounded by a matrix of fine dry cribellar fibrils. Based on phylogenetic evidence, cribellate capture threads predate the use of viscid capture threads. To …
Evaluating The Monophyly Of Eulimnadia And The Limnadiinae (Branchiopoda : Spinicaudata) Using Dna Sequences, W. R. Hoeh, N. D. Smallwood, D. M. Senyo, E. G. Chapman, Stephen C. Weeks
Evaluating The Monophyly Of Eulimnadia And The Limnadiinae (Branchiopoda : Spinicaudata) Using Dna Sequences, W. R. Hoeh, N. D. Smallwood, D. M. Senyo, E. G. Chapman, Stephen C. Weeks
Stephen C. Weeks
The evolutionary relationships among the six nominal genera within the spinicaudate clam shrimp family Limnadiidae, as well as the validity of the limnadiid genus Eulimnadia, have been much debated in the literature with little consensus emerging. The lack of resolution on these topics impedes evaluations of limnadiid biodiversity, phylogeny, and character evolution. To address these issues, we used Bayesian and parsimony methods to analyze DNA sequences from three genetic loci (28S, 12S, cytb) that were obtained from representatives of five nominal limnadiid genera and one undescribed limnadiid species. These analyses confirm the monophyly of Eulimnadia and the most taxonomically inclusive …
Homeland Security: Engaging The Frontlines - Symposium Proceedings, George H. Baker, Cheryl J. Elliott
Homeland Security: Engaging The Frontlines - Symposium Proceedings, George H. Baker, Cheryl J. Elliott
George H Baker
The rise of the American homeland security endeavor under the leadership of the new Department of Homeland Security has been heralded by several major national strategy documents. These documents have served to organize efforts at top levels within the government and industry. However, the national strategy guidance is not getting to many organizations and people at the grass-roots level who can make the most difference in preventing attacks, protecting systems, and recovering from catastrophic events, viz. the general citizenry, private infrastructure owners, and local governments. To better understand grass-roots issues and solutions, James Madison University, in cooperation with the Federal …
A Subset Of Mer1p-Dependent Introns Requires Bud13p For Splicing Activation And Nuclear Retention, Marc Spingola, Frederick W. Scherrer Jr
A Subset Of Mer1p-Dependent Introns Requires Bud13p For Splicing Activation And Nuclear Retention, Marc Spingola, Frederick W. Scherrer Jr
Marc Spingola
Phylogeography Of The Flag Cabrilla Epinephelus Labriformis (Serranidae): Implications For The Biogeography Of The Tropical Eastern Pacific And The Early Stages Of Speciation In A Marine Shore Fish, Mathew T. Craig, Phillip A. Hastings, Daniel J. Pondella Ii, D. Ross Robertson, Jorge A. Rosales-Casián
Phylogeography Of The Flag Cabrilla Epinephelus Labriformis (Serranidae): Implications For The Biogeography Of The Tropical Eastern Pacific And The Early Stages Of Speciation In A Marine Shore Fish, Mathew T. Craig, Phillip A. Hastings, Daniel J. Pondella Ii, D. Ross Robertson, Jorge A. Rosales-Casián
Daniel Pondella
To examine the role of previously described biogeographical boundaries in shaping phylogeographical relationships within and among two putative eastern Pacific sibling species, the flag cabrilla, Epinephelus labriformis and the Clipperton grouper, Epinephelus clippertonensis (Serranidae).
Rapid Signaling At The Plasma Membrane By A Nuclear Receptor For Thyroid Hormone, Hemayet Ullah
Rapid Signaling At The Plasma Membrane By A Nuclear Receptor For Thyroid Hormone, Hemayet Ullah
Hemayet Ullah
Littoral Benthic Marcroinvertebrates Under Contrasting Drawdown In A Reservoir And A Natural Lake, Paula Furey, Rick N. Nordin, Asit Mazumder
Littoral Benthic Marcroinvertebrates Under Contrasting Drawdown In A Reservoir And A Natural Lake, Paula Furey, Rick N. Nordin, Asit Mazumder
Paula Furey
No abstract provided.
Longitudinal Changes In Visual Acuity In Keratoconus, Larry J. Davis, Kenneth B. Schechtman, Brad S. Wilson, Carol E. Rosenstiel, Colleen H. Riley, David P. Libassi, Ralph E. Gundel, Louis Rosenberg, Mae O. Gordon, Karla Zadnik
Longitudinal Changes In Visual Acuity In Keratoconus, Larry J. Davis, Kenneth B. Schechtman, Brad S. Wilson, Carol E. Rosenstiel, Colleen H. Riley, David P. Libassi, Ralph E. Gundel, Louis Rosenberg, Mae O. Gordon, Karla Zadnik
Larry Davis
Double Knockouts Of Phospholipases Dζ1 And Dζ2 In Arabidopsis Affect Root Elongation During Phosphate-Limited Growth But Do Not Affect Root Hair Patterning, Xuemin Wang, Maoyin Li, Chunbo Qin, Ruth Welti
Double Knockouts Of Phospholipases Dζ1 And Dζ2 In Arabidopsis Affect Root Elongation During Phosphate-Limited Growth But Do Not Affect Root Hair Patterning, Xuemin Wang, Maoyin Li, Chunbo Qin, Ruth Welti
Xuemin (Sam) Wang
Variation In The Innate And Acquired Arms Of The Immune System Among Five Shorebird Species, Luisa Mendes, Theunis Piersma, Dennis Hasselquist, Kevin D. Matson, Robert E. Ricklefs
Variation In The Innate And Acquired Arms Of The Immune System Among Five Shorebird Species, Luisa Mendes, Theunis Piersma, Dennis Hasselquist, Kevin D. Matson, Robert E. Ricklefs
Robert Ricklefs
Purple Loosestrife On The Susquehanna River’S West Branch: Distribution And Environmental Correlates, E. Ketterer, Warren Abrahamson
Purple Loosestrife On The Susquehanna River’S West Branch: Distribution And Environmental Correlates, E. Ketterer, Warren Abrahamson
Warren G. Abrahamson, II
No abstract provided.
African-American Mitochondrial Dnas Often Match Mtdnas Found In Multiple African Ethnic Groups [Published Correction Appears In Bmc Biol 2006; 5:13], Bert Ely, Jamie L. Wilson, Fatimah Linda Collier Jackson, Bruce A. Jackson
African-American Mitochondrial Dnas Often Match Mtdnas Found In Multiple African Ethnic Groups [Published Correction Appears In Bmc Biol 2006; 5:13], Bert Ely, Jamie L. Wilson, Fatimah Linda Collier Jackson, Bruce A. Jackson
Fatimah Linda Collier Jackson
Rack1 Mediates Multiple Hormone Responsiveness And Developmental Processes In Arabidopsis, Hemayet Ullah
Rack1 Mediates Multiple Hormone Responsiveness And Developmental Processes In Arabidopsis, Hemayet Ullah
Hemayet Ullah
Identification And Characterization Of A New Class Of Bilin Lyase Responsible For Attachment Of Phycocyanobilin To Cys-153 On The Β-Subunit Of Phycocyanin In Synechococcus Sp. Pcc 7002, Wendy M. Schluchter
Identification And Characterization Of A New Class Of Bilin Lyase Responsible For Attachment Of Phycocyanobilin To Cys-153 On The Β-Subunit Of Phycocyanin In Synechococcus Sp. Pcc 7002, Wendy M. Schluchter
Wendy M Schluchter
No abstract provided.
Molecular Detection Of Marine Invertebrate Larvae, Shana Goffredi, William J. Jones, Christopher A. Scholin, Roman Marin Iii, Robert C. Vrijenhoek
Molecular Detection Of Marine Invertebrate Larvae, Shana Goffredi, William J. Jones, Christopher A. Scholin, Roman Marin Iii, Robert C. Vrijenhoek
Shana Goffredi
The ecological patterns of many invertebrate larvae remain an ongoing mystery, in large part owing to the difficult task of detecting them in the water column. The development of nucleic-acid-based technology has the potential to resolve this issue by direct identification and monitoring of embryonic and larval forms in situ. We report herein on the successful development and application of nucleic-acid-based sandwich hybridization assays that detect barnacles using rRNA-targeted probes with both group-(order Thoracica) and species-(Balanus glandula) specificity. Primary results include the determination of target 18S rRNA sequences and the construction of "capture" probes for detection of larvae using hybridization …
Silken Toolkits: Biomechanics Of Silk Fibers Spun By The Orb Web Spider Argiope Argentata (Fabricius 1775), Todd A. Blackledge, Cheryl Y. Hayashi
Silken Toolkits: Biomechanics Of Silk Fibers Spun By The Orb Web Spider Argiope Argentata (Fabricius 1775), Todd A. Blackledge, Cheryl Y. Hayashi
Todd A. Blackledge
Orb-weaving spiders spin five fibrous silks from differentiated glands that contain unique sets of proteins. Despite diverse ecological functions, the mechanical properties of most of these silks are not well characterized. Here, we quantify the mechanical performance of this toolkit of silks for the silver garden spider Argiope argentata. Four silks exhibit viscoelastic behaviour typical of polymers, but differ statistically from each other by up to 250% in performance, giving each silk a distinctive suite of material properties. Major ampullate silk is 50% stronger than other fibers, but also less extensible. Aciniform silk is almost twice as tough as other …
Ethnic Identity And Type 2 Diabetes Health Attitudes In Americans Of African Ancestry, Jelena Brezo, Charmaine D. Royal, Franklin Ampy, Verle Headings
Ethnic Identity And Type 2 Diabetes Health Attitudes In Americans Of African Ancestry, Jelena Brezo, Charmaine D. Royal, Franklin Ampy, Verle Headings
Franklin Ampy
Laboratory Bioefficacy Of Creek 1.0g (Tentephos) Against Aedes (Stegomyia) Aegypti (Linnaeus) Lairvae, Chen Chee Dhang
Laboratory Bioefficacy Of Creek 1.0g (Tentephos) Against Aedes (Stegomyia) Aegypti (Linnaeus) Lairvae, Chen Chee Dhang
Chen Chee Dhang
The bioefficacy of a commercial formulation of temephos, Creek((R)) againstAedes aegypti larvae was studied in the laboratory. Earthen jars were filled with 10 L tap water each. One g of temephos (Creek((R))) sand granule formulation was added into each earthen jar as recommended by the manufacturer. The final test concentration of Creek((R)) was 1 mg ai./L One earthen jar was filled with 10 L tap water and served as a test control (untreated). Thirty late 3(rd) or early 4(th) instar of lab-bred Ae. aegypti larvae were added into each earthen jar. Mortality of the larvae was recorded after 24 hours …
Female Preferences For Male Calling Songs In The Bladder Grasshopper Bullacris Membracioides, Vanessa C. K. Couldridge, Moira J. Van Staaden
Female Preferences For Male Calling Songs In The Bladder Grasshopper Bullacris Membracioides, Vanessa C. K. Couldridge, Moira J. Van Staaden
Moira J. van Staaden
Male acoustic signals and the information they convey are often critical determinants of female mate choice. Bladder grasshoppers are one of numerous orthopteran taxa utilizing sound as the basis of courtship and ultimately mating. However, despite the extreme specializations for long-distance acoustic communication in this family, female mating preferences for male calls have not been previously investigated. Here we examine female acoustic responses to playbacks of male calls in Bullacris membracioides. Females were tested in three separate contexts, viz. response to conspecific calls of different individuals, response to degraded conspecific calls, and response to the calls of two heterospecifics. Female …
The Use Of The Major Chelae By Reproductive Male Crayfish (Orconectes Rusticus) For Discrimination Of Female Odours, Rachelle M. Belanger, Paul A. Moore
The Use Of The Major Chelae By Reproductive Male Crayfish (Orconectes Rusticus) For Discrimination Of Female Odours, Rachelle M. Belanger, Paul A. Moore
Paul A. Moore
The major chelae have been found to be important structures used for breeding and reproduction in crustaceans; however their role in the detection of conspecific sex odours is unknown. We implemented a behavioural bioassay to test whether male reproductive (form I) and nonreproductive (form II) crayfish (Orconectes rusticus) use their major chelae to detect reproductive female odours. We videotaped and analysed the behavioural reactions of form I and form II males to four different odour treatments: reproductive female-conditioned water, male-conditioned water, filtered fish homogenate (food odour; positive control), and water (negative control) delivered from an air stone (N = 20 …
Evaluation Of Eelgrass Mitigation And Fishery Enhancement Structures In San Diego Bay, California, Daniel Pondella Ii
Evaluation Of Eelgrass Mitigation And Fishery Enhancement Structures In San Diego Bay, California, Daniel Pondella Ii
Daniel Pondella
To offset habitat loss and increase fishery production, an eelgrass mitigation habitat was completed in San Diego Bay, California in 1997. This mitigation effort consisted of the transplantation of eelgrass, Zostera marina L., in the western portion of the bay. In addition to the establishment of a new eelgrass bed, four enhancement reefs made of either quarry rock or concrete rubble were created to further enhance fishery stocks and the area's ecosystem. Two design criteria and a direct comparison between quarry rock and concrete reefs were examined in this 5-yr pilot program. The newly created eelgrass habitat quickly performed at …
Conservation Medicine On The Galápagos Islands: Partnerships Among Behavioral, Population, And Veterinary Scientists, Patricia G. Parker, Noah Kerness Whiteman, R. Eric Miller
Conservation Medicine On The Galápagos Islands: Partnerships Among Behavioral, Population, And Veterinary Scientists, Patricia G. Parker, Noah Kerness Whiteman, R. Eric Miller
Patricia Parker
No abstract provided.
Absence Of Spiroplasma Or Other Bacterial 16s Rrna Genes In Brain Tissue Of Hamsters With Scrapie, Irina Alexeeva, Ellen J. Elliott, Sandra Rollins, Gail E. Gasparich, Jozef Lazar, Robert G. Rohwer
Absence Of Spiroplasma Or Other Bacterial 16s Rrna Genes In Brain Tissue Of Hamsters With Scrapie, Irina Alexeeva, Ellen J. Elliott, Sandra Rollins, Gail E. Gasparich, Jozef Lazar, Robert G. Rohwer
Gail Gasparich
Multiple Sequence Alignment Accuracy And Phylogenetic Inference, T. Heath Ogden
Multiple Sequence Alignment Accuracy And Phylogenetic Inference, T. Heath Ogden
T. Heath Ogden
Phylogenies are often thought to be more dependent upon the specifics of the sequence alignment rather than on the method of reconstruction. Simulation of sequences containing insertion and deletion events was performed in order to determine the role that alignment accuracy plays during phylogenetic inference. Data sets were simulated for pectinate, balanced, and random tree shapes under different conditions (ultrametric equal branch length, ultrametric random branch length, nonultrametric random branch length). Comparisons between hypothesized alignments and true alignments enabled determination of two measures of alignment accuracy, that of the total data set and that of individual branches. In general, our …