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University of Massachusetts Amherst

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Articles 1 - 30 of 2074

Full-Text Articles in Life Sciences

2018-2020 Chart Book: Cautions, Hilary A. Sandler Mar 2018

2018-2020 Chart Book: Cautions, Hilary A. Sandler

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Resistance Management, Martha Sylvia, Katherine Ghantous Mar 2018

2018-2020 Chart Book: Resistance Management, Martha Sylvia, Katherine Ghantous

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Disease Management, Martha Sylvia, Erika Saalau Rojas, Frank L. Caruso Mar 2018

2018-2020 Chart Book: Disease Management, Martha Sylvia, Erika Saalau Rojas, Frank L. Caruso

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book, Martha Sylvia, Katherine Ghantous, Erika Saalau Rojas, Frank L. Caruso, Anne Averill, Hilary A. Sandler, Carolyn J. Demoranville, Peter Jeranyama Mar 2018

2018-2020 Chart Book, Martha Sylvia, Katherine Ghantous, Erika Saalau Rojas, Frank L. Caruso, Anne Averill, Hilary A. Sandler, Carolyn J. Demoranville, Peter Jeranyama

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Insect Management, Anne Averill, Martha Sylvia Mar 2018

2018-2020 Chart Book: Insect Management, Anne Averill, Martha Sylvia

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Nutrition Management, Carolyn J. Demoranville, Katherine Ghantous Mar 2018

2018-2020 Chart Book: Nutrition Management, Carolyn J. Demoranville, Katherine Ghantous

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Irrigation Water Management, Peter Jeranyama Mar 2018

2018-2020 Chart Book: Irrigation Water Management, Peter Jeranyama

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Warnings, Hilary A. Sandler Mar 2018

2018-2020 Chart Book: Warnings, Hilary A. Sandler

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Groundwater Protection And Zone Ii, Martha Sylvia Mar 2018

2018-2020 Chart Book: Groundwater Protection And Zone Ii, Martha Sylvia

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Late Water, Carolyn J. Demoranville, Hilary A. Sandler, Anne Averill Mar 2018

2018-2020 Chart Book: Late Water, Carolyn J. Demoranville, Hilary A. Sandler, Anne Averill

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Measures And Conversions, Hilary A. Sandler Mar 2018

2018-2020 Chart Book: Measures And Conversions, Hilary A. Sandler

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Pesticide Storage, Hilary A. Sandler Mar 2018

2018-2020 Chart Book: Pesticide Storage, Hilary A. Sandler

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Insect At A Glance, Anne Averill, Martha Sylvia Mar 2018

2018-2020 Chart Book: Insect At A Glance, Anne Averill, Martha Sylvia

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Weed Management, Hilary A. Sandler, Katherine Ghantous Mar 2018

2018-2020 Chart Book: Weed Management, Hilary A. Sandler, Katherine Ghantous

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Disease At A Glance, Martha Sylvia, Erika Saalau Rojas Mar 2018

2018-2020 Chart Book: Disease At A Glance, Martha Sylvia, Erika Saalau Rojas

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Winter Management, Carolyn J. Demoranville, Peter Jeranyama Mar 2018

2018-2020 Chart Book: Winter Management, Carolyn J. Demoranville, Peter Jeranyama

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Nutrition At A Glance, Carolyn J. Demoranville, Katherine Ghantous Mar 2018

2018-2020 Chart Book: Nutrition At A Glance, Carolyn J. Demoranville, Katherine Ghantous

Cranberry Chart Book - Management Guide

No abstract provided.


2018-2020 Chart Book: Weed At A Glance, Hilary A. Sandler, Katherine Ghantous Mar 2018

2018-2020 Chart Book: Weed At A Glance, Hilary A. Sandler, Katherine Ghantous

Cranberry Chart Book - Management Guide

No abstract provided.


Salicylic Acid Effects On Growth, Yield, And Fruit Quality Of Strawberry Cultivars, R.A. Mohamed, Al-Kharpotly Abdelbaset, D.Y Abd-Elkader Feb 2018

Salicylic Acid Effects On Growth, Yield, And Fruit Quality Of Strawberry Cultivars, R.A. Mohamed, Al-Kharpotly Abdelbaset, D.Y Abd-Elkader

Journal of Medicinally Active Plants

No abstract provided.


About The Cover Feb 2018

About The Cover

Journal of Medicinally Active Plants

No abstract provided.


Genome Sequence Of Verrucomicrobium Sp. Strain Gas474, A Novel Bacterium Isolated From Soil, Grace Pold, Erin M. Conlon, Marcel Huntemann, Manoj Pillay, Natalia Mikhailova, Dimitrios Stamatis, T.B.K. Reddy, Chris Daum, Nicole Shapiro, Nikos Kyrpides, Tanja Woyke, Kristen Deangelis Jan 2018

Genome Sequence Of Verrucomicrobium Sp. Strain Gas474, A Novel Bacterium Isolated From Soil, Grace Pold, Erin M. Conlon, Marcel Huntemann, Manoj Pillay, Natalia Mikhailova, Dimitrios Stamatis, T.B.K. Reddy, Chris Daum, Nicole Shapiro, Nikos Kyrpides, Tanja Woyke, Kristen Deangelis

Microbiology Department Faculty Publication Series

Verrucomicrobium sp. strain GAS474 was isolated from the mineral soil of a temperate deciduous forest in central Massachusetts. Here, we present the complete genome sequence of this phylogenetically novel organism, which consists of a total of 3,763,444 bp on a single scaffold, with a 65.8% GC content and 3,273 predicted open reading frames.


Effects Of The Floral Phytochemical Eugenol On Parasite Evolution And Bumble Bee Infection And Preference, Evan C. Palmer-Young, Austin C. Calhoun, Anastasiya Mirzayeva, Benn M. Sadd Jan 2018

Effects Of The Floral Phytochemical Eugenol On Parasite Evolution And Bumble Bee Infection And Preference, Evan C. Palmer-Young, Austin C. Calhoun, Anastasiya Mirzayeva, Benn M. Sadd

Organismic and Evolutionary Biology Graduate Student Publication Series

Ecological and evolutionary pressures on hosts and parasites jointly determine infection success. In pollinators, parasite exposure to floral phytochemicals may influence between-host transmission and within-host replication. In the bumble bee parasite Crithidia bombi, strains vary in phytochemical resistance, and resistance increases under in vitro selection, implying that resistance/infectivity trade-offs could maintain intraspecific variation in resistance. We assessed costs and benefits of in vitro selection for resistance to the floral phytochemical eugenol on C. bombi infection in Bombus impatiens fed eugenol-rich and eugenol-free diets. We also assessed infection-induced changes in host preferences for eugenol. In vitro, eugenol-exposed cells initially increased ...


Grower Surveys Of Resistance Management Concerns, Knowledge And Implementation, Katherine Ghantous, Hilary A. Sandler, Laura Mcdermott, Martha Sylvia Jan 2018

Grower Surveys Of Resistance Management Concerns, Knowledge And Implementation, Katherine Ghantous, Hilary A. Sandler, Laura Mcdermott, Martha Sylvia

Cranberry Station Resistance Management

No abstract provided.


Assembly And Functional Architecture Of Bacterial Chemoreceptor Nanoarrays, Elizabeth R. Haglin Jan 2018

Assembly And Functional Architecture Of Bacterial Chemoreceptor Nanoarrays, Elizabeth R. Haglin

Doctoral Dissertations

Transmembrane chemotaxis receptors are found in bacteria in extended hexagonal arrays stabilized by the membrane and by cytosolic binding partners, the kinase CheA and coupling protein CheW. Models of array architecture and assembly propose receptors cluster into trimers-of-dimers that associate with one CheA dimer and two CheW monomers to form the minimal "core unit" necessary for signal transduction. Reconstructing in vitro chemoreceptor ternary complexes that are homogenous, functional, and exhibit native architecture remains a challenge. Here we report that His-tag mediated receptor dimerization with divalent metals is sufficient to drive assembly of native-like functional arrays of a receptor cytoplasmic fragment ...


The Impact Of Intraspecific Density On Garlic Mustard Sinigrin Concentration, Mercedes Harris Jan 2018

The Impact Of Intraspecific Density On Garlic Mustard Sinigrin Concentration, Mercedes Harris

Masters Theses

Garlic mustard (Alliaria petiolata, Brassicaceae) is a biennial herb that produces glucosinolates, a class of constituent secondary metabolites that defend against herbivores and pathogens allowing it to grow at high densities in invaded regions. The glucosinolate sinigrin is predominant in garlic mustard and aids in its competitiveness as an invasive species. In North America, garlic mustard can grow at high densities and form dense monocultures which may increase its apparency to herbivores and therefore increase its sinigrin production. I measured leaf sinigrin concentration in garlic mustard populations of different densities in the field and in greenhouse experiments to evaluate the ...


“Movers And Stayers” Movement Ecology Of Yellowtail Snapper Ocyurus Chrysurus And Horse-Eye Jack Caranx Latus Around Buck Island Reef National Monument, U.S. Virgin Islands, Ashleigh Novak Jan 2018

“Movers And Stayers” Movement Ecology Of Yellowtail Snapper Ocyurus Chrysurus And Horse-Eye Jack Caranx Latus Around Buck Island Reef National Monument, U.S. Virgin Islands, Ashleigh Novak

Masters Theses

When movement ecology of target species is coupled with spatial management approaches, such as marine protected areas (MPAs), the results can establish effective conservation outcomes. Nevertheless, a knowledge gap persists regarding how many marine organisms use specific environments over long, continuous periods of time. Acoustic telemetry arrays and fine-scale positioning systems are quickly pervading the marine environment as they can monitor animal movements on a near continuous basis, filling in many previous unknowns on spatial use patterns. Further, coupling fine-scale movement patterns and benthic habitat data provides a spatial framework foundation essential to understanding the intricacies of how habitats can ...


Polymeric Peptide Mimics For Protein Delivery, Coralie Backlund Jan 2018

Polymeric Peptide Mimics For Protein Delivery, Coralie Backlund

Doctoral Dissertations

The plasma membrane is a major obstacle in the development and use of biomacromolecules for intracellular applications. Consequently, proteins with intracellular targets represent an enormous, yet under studied avenue for therapeutics. Extended research has aimed at facilitating intracellular delivery of exogenous proteins using protein transduction domains (PTDs), which allow transport of bioactive molecules into cells. Synthetic polymers, inspired by PTDs, provide a well-controlled platform to vary molecular architecture for structure activity relationship studies. Specifically, this thesis focuses on the use of ring-opening metathesis, a facile and efficient polymerization technique, through which we can vary structural parameters to optimize delivery of ...


Using Stable Isotopes To Examine Carry-Over Effects During The Full Annual Cycle Of A Migratory Bird, The Prairie Warbler, Michael E. Akresh Jan 2018

Using Stable Isotopes To Examine Carry-Over Effects During The Full Annual Cycle Of A Migratory Bird, The Prairie Warbler, Michael E. Akresh

Doctoral Dissertations

To better conserve threatened species, conservationists need to understand the processes that affect species during their entire life cycle, including ‘carry-over effects’ which can occur if individuals’ previous experience influences their current or future performance. We studied prairie warblers (Setophaga discolor) to examine carry-over effects in a Nearctic-Neotropical migratory bird. Using carbon isotopes in birds’ blood as a measure of habitat moisture, we first assessed the effects of rainfall and habitat on the condition of prairie warblers wintering in The Bahamas. Annual variation in rainfall and spatial moisture interacted to influence birds’ condition: during a winter with less rainfall, most ...


Caenorhabditis Elegans Model To Study Antimicrobial Treatment On E. Coli O157:H7, Parita Patel Jan 2018

Caenorhabditis Elegans Model To Study Antimicrobial Treatment On E. Coli O157:H7, Parita Patel

Masters Theses

An increase in antimicrobial resistance bacteria has endangered our ability to treat infectious diseases. Lack of good in-vivo model has made it difficult to study antimicrobial resistance. In this study, we have used an inexpensive and short life span in-vivo model namely, Caenorhabditis elegans (C. elegans) to study antimicrobial treatment using pathogenic Escherichia coli O157:H7, a multidrug resistance bacterium that causes life threatening infection in humans.

We have investigated the influence of live vs. heat killed non-pathogenic E. coli OP50 (OP50) as a food source on the growth and survival of infected C. elegans mutant AU37 with E. coli ...


Mechanism Of Regulation Of Kinesins Eg5 And Kif15 By Tpx2, Sai Keshavan Balchand Jan 2018

Mechanism Of Regulation Of Kinesins Eg5 And Kif15 By Tpx2, Sai Keshavan Balchand

Doctoral Dissertations

Cell division is the fundamental process by which the replicated genetic material is faithfully segregated to form two identical daughter cells. The mitotic spindle is the macromolecular cytoskeletal structure that is built during every round of cell division to successfully separate the duplicated genome equally into the daughter cells. Errors in spindle formation can thus causegenetic aberrations and can potentially lead to cancer. Understanding the mechanisms that govern proper spindle assembly and function is thus important. Eg5 and Kif15 are two important kinesins which play a major role in establishing and maintaining bipolarity of the mitotic spindle. Both Eg5 and ...