A5005832831- Light effects on plants
- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Photosynthetic Processes and Mechanisms
- Biocrusts and Microbial Ecology
- Insect and Arachnid Ecology and Behavior
- Plant responses to water stress
- Coastal wetland ecosystem dynamics
- Greenhouse Technology and Climate Control
- Biological Control of Invasive Species
- Plant Molecular Biology Research
- Fire effects on ecosystems
- Peatlands and Wetlands Ecology
- Soil Carbon and Nitrogen Dynamics
- Insect Pest Control Strategies
- Piperaceae Chemical and Biological Studies
- Tree Root and Stability Studies
- Flowering Plant Growth and Cultivation
- Remote Sensing in Agriculture
- Insect and Pesticide Research
- Polar Research and Ecology
- Insect-Plant Interactions and Control
- Plant Water Relations and Carbon Dynamics
- Plant Gene Expression Analysis
- Plant Parasitism and Resistance
Loyola University New Orleans
2014-2021
Tulane University
2003-2008
University of Louisiana at Lafayette
2003-2006
Abstract The accumulation of ultraviolet (UV)‐absorbing compounds (flavonoids and related phenylpropanoids) the resultant decrease in epidermal UV transmittance (T ) are primary protective mechanisms employed by plants against potentially damaging solar radiation critical components overall acclimation response to changing environments. Whether can adjust this sunscreen protection rapid changes UV, as occurs on a diurnal basis, is largely unexplored. Here, we use combination approaches...
1 Salinization is a growing environmental stress in wetland ecosystems world-wide. Several models have been proposed that predict clonal plant responses to stress, including stimulates sexual reproduction. 2 We conducted common-garden experiment investigate the effects of salinity on 10 natural populations Iris hexagona, perennial endemic freshwater and brackish wetlands North American Gulf Coast. 3 Salinity reduced vegetative growth but either increased or had neutral reproduction,...
Prominent models of herbivore regulation focus on predators, low plant biomass, or poor resource quality as factors that limit populations. We examined predictions these tritrophic for herbivores the understory shrub, Piper cenocladum, which is defended by mutualistic ants (Pheidole bicornis) and three amide secondary metabolites. To examine sources variation in P. cenocladum content to compare effects amides vs. herbivores, we used linked experiments field shadehouses. manipulated light,...
The accumulation of soluble and cell-wall bound UV-absorbing compounds (i.e., flavonoids) in the epidermis mesophyll leaves is a response plants to UV exposure. These are known function screening, but they also potential value for food quality. One way non-destructively monitor screening by optical methods, from which UVA-PAM Dualex instruments stand out. degree rapidity can modulate fluctuating solar conditions poorly understood. In this study, okra were exposed two radiation treatments...
Flavonoids are favored compounds in plant responses to UV exposure and act absorption antioxidant activity. Here, it was investigated, with okra as a model species, how fast plants can react changing conditions what extent these reactions take place. Okra (Abelmoschus esculentus) were exposed either full or nearly no radiation. The diurnal rhythm of the driven by radiation showed up 50% increase flavonoid content (measured optically +UV plants). This reflected only trends UV-absorption...
ABSTRACT Although herbivory can affect plant fitness, few studies have investigated the effects of on fitness plants that reproduce vegetatively via fragmentation. Plants in this manner are common tropical wet forest understories, where they subject to damage from falling branches and other debris. For these species, ability fragmentation may be affected by extent herbivory. In study, we determined natural artificial fragments. The leaves four understory species were either damaged...
Although herbivory can affect plant fitness, few studies have investigated the effects of on fitness plants that reproduce vegetatively via fragmentation. Plants in this manner are common tropical wet forest understories, where they subject to damage from falling branches and other debris. For these species, ability fragmentation may be affected by extent herbivory. In study, we determined natural artificial fragments. The leaves four understory species were either damaged artificially or...