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Articles 331 - 334 of 334
Full-Text Articles in Botany
Functional Analysis Of Drought-Resistant Genes In Barley Using Vigs, Natalie Catherine Martin
Functional Analysis Of Drought-Resistant Genes In Barley Using Vigs, Natalie Catherine Martin
Honors Program Theses
The following study analyzed the role of the gamma-aminobutyric acid transaminase (GABAT) gene in the response of barley plants to drought stress. Expression of GABAT in barley was suppressed using virus-induced gene silencing (VIGS). In VIGS, an RNA virus is used to replicate a small portion of the target RNA. In this study, barley stripe mosaic virus (BSMV), that carries a piece of the GABAT gene to infect barley, was used. As the virus replicates inside infected barley plants, it also makes RNA that is complementary to GABAT messenger RNA (mRNA) that is normally made by the host. The presence …
Analysis Of Ipomoea (Morning Glory) Leaf Mutants, Abigail Anne Lee
Analysis Of Ipomoea (Morning Glory) Leaf Mutants, Abigail Anne Lee
Honors Program Theses
Ipomoea (morning glory) is the largest genus in the family Convolvulaceae. Cultivation of morning glory plants began in the late Edo period in Japan, and this horticultural success resulted in thousands of plants with varying floral displays. In addition to the different flower morphologies, leaf shape is highly variable within this family making it an ideal group in which to study leaf development. We selected four mutants that vary in lobe number and lobe depth: 1) Tokyo Standard (TKS1065; wild-type; 3 lobes), yellow maple (ym1018; 5 lobes), delicate maple (dlm620; 5 deep lobes), and maple willow …
Dispersal: A Multidisciplinary Investigation Of Plant Life, Alexandra E. Arzt
Dispersal: A Multidisciplinary Investigation Of Plant Life, Alexandra E. Arzt
Theses and Dissertations
Using plants as a basis for exploring the interstices between the human and nonhuman, this thesis investigates ideas of awareness, intelligence, deep time, animism, and the fluctuating human perception of the agency of Nature. It outlines environmental art practices since the 1950s involving vegetal life. In addition, the paper provides a critical analysis of plant perception of Jakob von Uexküll’s work and theories of vital materialism and “critical plant studies” while noting recent studies in plant neurobiology. In my work, plants become active participants via their movement, seeding, and smell. This study takes the form of imitation, purposeful symbiosis, anthropomorphism, …
Bioethanol: Feedstock Alternatives, Pretreatments,Lignin Chemistry, And The Potential For Green Value-Added Lignin Co-Products, Ruben Michael Ceballos, N. A. Batchenkova, M.K. Y. Chan, A. X. Duffing-Romero, A. E. Nelson, S. Man
Bioethanol: Feedstock Alternatives, Pretreatments,Lignin Chemistry, And The Potential For Green Value-Added Lignin Co-Products, Ruben Michael Ceballos, N. A. Batchenkova, M.K. Y. Chan, A. X. Duffing-Romero, A. E. Nelson, S. Man
Biological Sciences Faculty Publications and Presentations
Major challenges still exist in the cost-competitive production of cellulosic ethanol. Lignocellulose deconstruction using physiochemical pretreatments continues to be the most efficient way to remove lignin and expose cellulose for enzyme-mediated sugar reduction. Recent interest in the development of “value-added” lignin co-products and the desire to reduce the use of hazardous materials has prompted a resurgence of interest in alternative lignocellulosic feedstock and research into environment-friendly biological pretreatments. This article provides an overview of bioethanol processes and economics, standard and alternative feedstocks, physiochemical and biological pretreatments, and lignin chemistry. The chemistry and mode of action of ligninolytic and cellulolytic enzymes …