Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 40 for “"plant stress"”.
-
Hyperspectral and Thermal Remote Sensing of Plant Stress Reponses to Oil Pollution.
… early pre-visual detection and quantification of plant stress caused by oil pollution. Further, it examines the potential for these techniques to discriminate between oil pollution and two typically encountered plant stresses of waterlogging and water deficit. Results show that oil pollution, …
-
From cradle to grave: The influence of mRNA metabolism on plant stress responses
The sessile nature of plants necessitates complex molecular responses to external stimuli, including environmental change. As the intermediary between DNA and protein, mRNA is a crucial cog in plant gene expression, and consequently a key regulatory target. During stress, control of mRNA metabolism …
-
From cradle to grave: The influence of mRNA metabolism on plant stress responses
The sessile nature of plants necessitates complex molecular responses to external stimuli, including environmental change. As the intermediary between DNA and protein, mRNA is a crucial cog in plant gene expression, and consequently a key regulatory target. During stress, control of mRNA metabolism …
-
Detection and attribution of drought and oil-induced plant stress using hyperspectral remote sensing
… use of hyperspectral remote sensing in detecting stress in vegetation caused by both drought stress and hydrocarbon contamination of the soil. Spectral and plant biochemical measurements were taken from an in-situ field experiment and a glasshouse experiment at the James Hutton Institute, …
-
Characterization of the Arabidopsis glutamine dumper1 mutant reveals connections between amino acid homeostasis and plant stress responses
… major organic form of transported nitrogen in plants, elements for protein synthesis, and precursors of many plant secondary metabolites, such as lignin, hormones, and flavonoids. Furthermore, amino acid metabolism lies at the crossroad of carbon and nitrogen metabolism. The Arabidopsis …
-
THERE IS NO PLANET B(EE): AN INTEGRATED APPROACH TO UNDERSTANDING DRIVERS OF POTENTIAL DECLINES IN BUMBLEBEE COMMUNITIES
… assessed the effect of climate change associated plant stressors on B. impatiens foraging behavior and hive development in a laboratory setting. Using the mass flowering crop canola (Brassica napus), I found that climate change associated plant stress resulted in decreased hive populations and …
-
Artificial Soil Formation And Stabilization Of Material Cycles In Closed Ecological Systems For Mars Habitats
… an environmentally closed ecosystem to simulate plant growth within these initial habitats, and the prospect of soil formation from a Mars parent material for agricultural purposes. The rhizosphere and plant stress will be the main regions of research focus. It is hypothesized rhizosphere …
-
The oat-crown rust pathosystem: an interaction of a plant, a pathogen, and time
Plant diseases are often described as the interaction of a plant, a pathogen, and the environment. For a disease to develop, there must be a susceptible plant, a virulent pathogen, and an environment amenable to disease. This concept is useful to explain the presence or absence of a disease, but …
-
Physiological and Morphological Responses to Drought Stress in Different Cultivation Environments in Wild Type and ABA-deficient Barley
… change, drought is one of the most critical for plant survival and reproduction, shaping plant morphology and physiology and therefore crop productivity. Although the effects of drought on plants are widely studied, studies are often conducted in controlled greenhouse or laboratory conditions …
-
The effects of jasmonates on the proliferation of human prostate cancer cell lines in culture
… and Methyl jasmonate (MJ), belong to a family of plant stress hormones known as the jasmonates. In plants, these compounds function as activators of cellular responses to diverse situations including cell death. Proliferation and cytotoxicity assays showed that the jasmonates inhibited the …
-
Stress detection in loblolly pine using relative apparent temperatures
The hypothesis that stressed loblolly pine (Pinus taeda L.) could be distinguished from non-stressed loblolly pine by increased foliage temperatures was tested. The foliage temperatures of seedlings and trees were measured with an AGA Thermovision 680 system, imported by the AGA Corporation, …
-
Soil and plant water stress in an Appalachian oak forest: its relationship to topography and forest site quality
… was used to investigate soil moisture and plant water stress relationships on the southeast face of Potts mountain in Craig County, Virginia. Topographical effects on available water are especially pronounced during low late season rainfall levels encountered in the Ridge and Valley …
-
Spatial Ecology and Remote Sensing in the Precision Management of Tetranychus urticae (Acari: Tetranychidae)in Peanut
… showed that after eight days leaves of peanut plants subjected to low soil moisture levels had significantly lower reflectance ratios (mean = 9.4766; a = 0.05) than plants given medium (mean = 10.0186) or high (mean = 10.5413) soil moisture levels. After 10 days, there were significant …
-
Transgenic manipulation of polyamine metabolism in poplar
… in all living organisms. They are involved in plant stress response and development. The study was aimed at analyzing the effects of altered polyamine metabolism on the polyamine and related pathways in transformed poplar cells overexpressing a mouse odc cDNA under the control of 2X 35S CaMV …
-
Advancement of fiber image guide based snapshot imaging spectrometer technology for bioimaging and environmental applications
… for smart farming with spectral data informing plant stress from abiotic stressors such as water stress and soil minerology are presented. Design and implementation of components and housing will enable the snapshot imaging spectrometers to image dynamic targets in a variety of environments, …
-
The effects of stress on biomass, soluble sugar concentrations and VA mycorrhizal colonization in sugar maple seedlings (Acer saccharum Marsh.)
… progressively decreased with increasing ozone stress. Shading had a negative effect on vesicles and coils at certain sampling periods. While defoliation negatively affected biomass and mycorrhizal colonization at the beginning of this study, towards the end, it increased biomass and mycorrhizal …
-
Identification of an extracellular adenosine 5'-triphosphate receptor in Arabidopsis thaliana
… extracellular ATP recognition and signaling in plants. A signaling role for ATP has been extensively documented in mammalian systems, including human, since the first extracellular ATP receptor was cloned in 1993. Recently, it was shown that extracellular ATP also plays important roles in plant …
-
Effect of Increased Carbon Dioxide Levels on Urushiol Production in Toxicodendron radicans and Toxicodendron toxicarium
… has been shown to stimulate higher rates of plant productivity, including the production of plant toxins like urushiol. Urushiol, a secondary plant compound produced in members of the Anacardiaceae family, causes dermatitis in sensitive individuals. An increase in urushiol production could …
-
Dissection of Drought Responses in Arabidopsis
Plants as sessile organisms are susceptible to many environmental stresses such as drought, and salinity. They have therefore evolved mechanisms to acclimate and tolerate environmental stresses. Knowledge of the molecular aspects of abiotic stress gleaned from extensive studies in Arabidopsis has …
-
Spinel: a framework for counting wheat spikes and kernels using UAV and ground-based imaging in breeding fields
… RGB and has proven effective in estimating plant stress and nitrogen content, though its use in spike counting is novel. The first YOLOv8 model focuses on plot detection, the second on spike detection using UAV-captured multispectral images, and the third on detecting spikes and kernels in …
Page 1 of 2