A5044058092- Phytoplasmas and Hemiptera pathogens
- Plant Physiology and Cultivation Studies
- Plant nutrient uptake and metabolism
- Cocoa and Sweet Potato Agronomy
- Plant Water Relations and Carbon Dynamics
- Plant Pathogens and Fungal Diseases
- Insect-Plant Interactions and Control
- Neurobiology and Insect Physiology Research
- Plant Pathogenic Bacteria Studies
- Plant Stress Responses and Tolerance
- Skin Protection and Aging
- Horticultural and Viticultural Research
- Plant and animal studies
- Plant responses to elevated CO2
- Nematode management and characterization studies
- Forest Insect Ecology and Management
- Agronomic Practices and Intercropping Systems
- Leaf Properties and Growth Measurement
- Plant Disease Management Techniques
- Insect behavior and control techniques
- Genetics, Aging, and Longevity in Model Organisms
- Psychotherapy Techniques and Applications
- Counseling, Therapy, and Family Dynamics
- Biological Control of Invasive Species
- Insect Pest Control Strategies
Florida Department of Citrus
2016-2025
University of Florida
2016-2025
Tavistock Institute
1998-2021
Purdue University West Lafayette
2017
University of Louisville Hospital
2015
University of Arkansas at Fayetteville
2009-2010
University of Georgia
2009
Clemson University
2009
Auburn University
2009
Texas A&M University
2009
Aging is associated with functional decline of neurons and increased incidence both neurodegenerative ocular disease. Photoreceptor in Drosophila melanogaster provide a powerful model for studying the molecular changes involved senescence since decreased visual behavior precedes retinal degeneration. Here, we sought to identify gene expression genomic features differentially regulated genes photoreceptors that contribute senescence.To could lead senescence, characterized aging transcriptome...
The role of root phenes in nitrogen (N) acquisition and biomass production was evaluated 10 contrasting natural accessions Arabidopsis thaliana L. Seedlings were grown on vertical agar plates with two different nitrate supplies. low N treatment increased the to shoot ratio promoted proliferation lateral roots hairs. cost a larger system did not impact biomass. Greater could be achieved through length or specific hair characteristics. A greater number hairs may provide low-resistance pathway...
Huanglongbing (HLB), which is caused by the phloem-limited bacterium 'Candidatus Liberibacter asiaticus,' an economically important disease of citrus in many regions world. Due to significant damage HLB recent years, use antibiotics was recommended for therapy this destructive disease. Products with active ingredients oxytetracycline and streptomycin have been approved control via foliar application. However, previous work raised questions about efficacy delivery field. In study, we examined...
Abstract Water scarcity restricts citrus growth and productivity worldwide. In pot conditions, tetraploid plants tolerate water deficit more than their corresponding diploids. However, tolerance mechanisms remain elusive. this study, we focused on which (i.e., hydraulic, osmotic or antioxidative) confer water-deficit to tetraploids. We exposed diploid Volkamer lemon rootstock (Citrus volkameriana Tan. Pasq.) quickly (fast) slowly (slow) developing conditions. evaluated physiological,...
Abstract Accurate estimation of photosynthetic parameters is essential for understanding plant physiological limitations and responses to environmental factors from the leaf global scale. Gas exchange a useful tool measure net CO 2 assimilation ( A ) internal concentration C i ), necessary step in estimating including maximum rate carboxylation V cmax electron transport J max ). However, species conditions low stomatal conductance g sw reduce signal-to-noise ratio gas exchange, challenging...
The Florida citrus industry is severely impacted by huanglongbing (HLB), a bacterial disease spread the Asian psyllid ( Diaphorina citri ), leading to reduced production and extensive management challenges. Additional stresses, such as excessive sunlight, heat, water deficits, further weaken affected trees. Kaolin particle films (PFs), including white recently developed red-dyed types, alleviate effects of heat stress on physiology, help suppress populations, delay HLB infection. However,...
Huanglongbing in citrus is caused by a phloem-limited, uncultivable, gram-negative α-proteobacterium, Candidatus Liberibacter asiaticus (CLas). CLas transmitted the phloem-sucking insect, Diaphorina citri (Hemiptera: Liviidae), persistent, circulative, and propagative manner. In this study, we investigated metabolomic respiration rates changes D. upon infection with using gas chromatography-mass spectrometry (GC-MS) exchange analysis. The level of glycine, L-serine, L-threonine, gamma-amino...
Our study aimed to evaluate the physiological responses following salinity treatment of three putatively salt-tolerant Citrus rootstocks recently developed by University Florida’s breeding program. Four-month-old seedlings from each (HS1, HS17, and HC15) were irrigated with 0, 60, 80, 100 mm NaCl solution. The evaluated together Cleopatra mandarin as a positive control, Volkamer lemon moderately rootstock, salt-sensitive Carrizo rootstock negative control. results demonstrated that...
Huanglongbing (HLB), caused by Candidatus `Liberibacter asiaticus' (CLas), is a phloem-limited disease that disrupts citrus production in affected areas. In HLB-affected plants, phloem sieve plate pores accumulate callose, and leaf carbohydrate export reduced. However, whether HLB causes reduction translocation speed the quantitative relationships among CLas population are still unknown. this work, procedure was developed to concurrently measure sugar transport, callose deposition relative...
Recently in Florida, foliar treatments using products with the antibiotics oxytetracycline and streptomycin have been approved for treatment of citrus Huanglongbing (HLB), which is caused by putative bacterial pathogen ‘Candidatus Liberibacter asiaticus’. Herein, we assessed levels ‘Ca. L. asiaticus’ titers trees upon applications without a variety commercial penetrant adjuvants trunk injection. The level leaves was measured an ELISA kit titer quantitative PCR. Low were taken up after sprays...
This paper is a report on an informal study by small group of psychotherapists interested in exploring the impact recent technological innovations their work as independent clinicians private practice. The range technologies studied included websites, email, mobile phones, and internet‐based banking services for payment receipt fees. Some had experience using video software (or Voice Over Internet Protocol/VOIP software) providing therapy and/or establishing supervisory training links. found...
Huanglongbing (HLB) is a phloem-affecting disease in citrus that reduces growth and impacts global production. HLB caused by phloem-limited bacterium (Candidatus Liberibacter asiaticus). By inhibiting phloem function, stunts sink growth, including the production of new shoots leaves, induces hyperaccumulation foliar starch. feedback inhibition photosynthesis reducing carbohydrate export. Here, we assessed relationship bacterial distribution within foliage, starch accumulation, net CO2...
Abstract Source‐sink balance in plants determines carbon distribution, and altering it can impact fixation, transport, allocation. We aimed to investigate the effect of altered source‐sink ratios on distribution ‘Valencia’ sweet orange ( Citrus x sinensis ) by various defoliation treatments (0%, 33%, 66%, 83% leaf removal). Gas exchange parameters were measured 0 10 days after using A / C i response curves, export was two radioisotope tracer techniques. Greater increased maximum rate...