A5058383644- Botany, Ecology, and Taxonomy Studies
- Plant Diversity and Evolution
- Botanical Research and Applications
- Plant and animal studies
- Plant Virus Research Studies
- Essential Oils and Antimicrobial Activity
- Plant Ecology and Taxonomy Studies
- Botanical Research and Chemistry
- Insect-Plant Interactions and Control
- Plant biochemistry and biosynthesis
- Archaeology and Natural History
- Plant Parasitism and Resistance
- Plant and Fungal Interactions Research
- Chromosomal and Genetic Variations
- Natural product bioactivities and synthesis
- Plant tissue culture and regeneration
- Lipid metabolism and biosynthesis
- Plant Disease Management Techniques
- Phytochemistry and Biological Activities
- Mediterranean and Iberian flora and fauna
- Species Distribution and Climate Change
- Ecology and Vegetation Dynamics Studies
- Postharvest Quality and Shelf Life Management
- Cocoa and Sweet Potato Agronomy
- Plant Molecular Biology Research
Desert Botanical Garden
2011-2024
Arizona State University
2001-2011
U.S. Arid Land Agricultural Research Center
2006-2007
Agricultural Research Service
2004-2007
Natural Resources Conservation Service
2004-2006
Premise Although numerous phylogenetic studies have been conducted in Cactaceae, whole‐plastome datasets not employed. We used the chollas to develop a plastome dataset for phylogeny reconstruction test species relationships, biogeography, clade age, and morphological evolution. Methods developed most known diploid members of (42 taxa) as well other Cylindropuntieae. Paired‐end, raw reads from genome skimming were reference‐mapped onto de novo assembly one cholla, Cylindropuntia bigelovii ,...
This research considers the applicability of different vegetation indices at 30 m resolution for mapping and monitoring desert wetland (cienega) health spatial extent through time Cienega Creek in southeastern Arizona, USA. Multiple stressors including risk decadal-scale drought, effects current predicted global warming, continued anthropogenic pressures threaten aquatic habitats southwest cienegas are recognized as important sites conservation restoration efforts. However, present a...
Abstract The monophyly of the genus Rhodomyrtus (Myrtaceae) was tested using data from morphology and nuclear ribosomal ITS regions (ITS-1, ITS-2) 5.8S gene. Representative species baccate genera hypothesized to be closely related were included, such as Archirhodomyrtus, Octamyrtus, Knnakomyrtus, some believed more distantly related, including Rhodamnia, Decaspermum, Pilidiostigma, Myrtastrum. Up four capsular-fruited outgroup used root trees (Heteropyxis natalensis, Carpolepis tardiflora,...
The seed oil of Lesquerella and the closely related genus Physaria (Brassicaceae) is rich in hydroxy fatty acids (HFAs). HFAs their derivatives are used to produce a variety industrial products including lubricants, nylon-11, plastics, drying agents, protective coatings, surfactants, cosmetics, pharmaceuticals. fendleri being developed as new crop for arid regions southwestern United States an alternative source HFAs. Between 1995 2001, 66 accessions from 28 species were collected States, 33...
Cactaceae comprise a diverse and iconic group of flowering plants which are almost exclusively indigenous to the New World. The wide variety growth forms found amongst cacti have led trafficking many species throughout world as ornamentals. Despite evolution physiological properties these having been extensively studied, little research has focused on cactus-associated viral communities. While only single-stranded RNA viruses had ever reported in cacti, here we report discovery...
Abstract Background and Scope Agaves played a central role as multi-use plants providing food, fibre beverage to pre-contact historical Mesoamerican cultures. However, their importance Indigenous Peoples in the Southwest USA northern Mexico, where they occur because of adaptations such CAM photosynthesis, is less well known. Archaeological research indicates Hohokam other Southwestern agrarian people increased agricultural potential this region by engineering riverine terraces bajadas for...
For over thirty years archaeologists have provided evidence that southern Arizona pre-Columbian Native Americans, the Hohokam, extensively cultivated agave. However, no archeologists reported finding living agaves growing in rock-piled or gridded Hohokam fields, therefore researchers could only speculate about species cultivated. Our work expands upon a recent publication noting several prehistoric dry-farmed fields on terraces overlooking San Pedro River. These affinities to A. phillipsiana...
Geminiviruses are a group of plant-infecting viruses with single-stranded DNA genomes. Within this family, in the genus Begomovirus known to have worldwide distribution causing range severe diseases multitude dicotyledonous plant species. Begomoviruses transmitted by whitefly Bemisia tabaci, and their ssDNA genomes can be either monopartite or bipartite. As part viral survey, various plants including those families Alliaceae, Amaranthaceae, Apiaceae, Asteraceae, Brassicaceae, Cactaceae,...
The family Cactaceae comprises a diverse group of typically succulent plants that are native to the American continent but have been introduced nearly all other continents, predominantly for ornamental purposes. Despite their economic, cultural, and ecological importance, very little research has conducted on viral community infects them. We previously identified highly divergent geminivirus is first known infect cacti. Recent efforts in non-cultivated asymptomatic shown diversity this...
The importance of vertebrate animals as seed dispersers (zoochory) has received increasing attention from researchers over the past 20 years, yet one category in particular, diploendozoochory, remains understudied. As term implies, this is a two-phase dispersal system whereby secondary predator (carnivorous vertebrate) consumes primary or granivore (rodent and bird) with undamaged seeds their digestive tract (mouth, cheek pouch, crop, stomach, other organ), which are subsequently eliminated...
Abstract Aim Climate is usually regarded as the main determinant of plant species distributions. However, past human use for food might also have influenced We hypothesized that human‐mediated dispersal has resulted in plants occupying more their potential geographical range. key ecological traits could predispose a to occupy its climatic range and be selected by humans food. Location The Sonoran Desert south‐western North America. Time period Present day. Major taxa studied Food plants....
Abstract The increase in human-mediated introduction of plant species to new regions has resulted a rise invasive exotic (IEPS) that had significant effects on biodiversity and ecosystem processes. One commonly accepted mechanism invasions is proposed by the enemy release hypothesis (ERH), which states IEPS free from their native herbivores natural enemies environments can outcompete indigenous become invasive. We here propose virome (VRH) as virus-centered variant conventional ERH only...
Abstract Fifteen novel microsatellite primer pairs are presented for Lesquerella fendleri , which were developed from seven dinucleotide, five trinucleotide and three tetranucleotide DNA loci. These loci characterized 40 individuals 24 localities throughout the species range. The number of alleles observed per locus ranged to 16, heterozygosity 0.175 0.750, polymorphic information content 0.218 0.889. Cross‐species transferability tested on nine one related genus Physaria indicates that...
Abstract Essential oils of fragrant Mosiera ehrenbergii (O. Berg) Landrum (Myrtaceae), collected in Arizona from Mexican seed, and M. longipes Small, Florida, were examined by GC/MS/FID. Thirty-eight constituents identified with dominant components limonene (51.6±0.7%) α-pinene (33.6±2.4%) (47.8±2.5%) longipes.
Se revisa la sistemática de Amomyrtus, un género endémico del sudoeste América Sur. En los estudios moleculares el aparece como monofilético, siendo sus parientes más cercanos géneros americanos Legrandia y Pimenta. elige lectotipo para Marcia lechleriana Miquel.