A5011208416- Chromosomal and Genetic Variations
- Plant tissue culture and regeneration
- Plant Virus Research Studies
- Plant Molecular Biology Research
- Rice Cultivation and Yield Improvement
- Genetic Mapping and Diversity in Plants and Animals
- CRISPR and Genetic Engineering
- Plant Stress Responses and Tolerance
- Plant Reproductive Biology
- Plant Disease Resistance and Genetics
- GABA and Rice Research
- Photosynthetic Processes and Mechanisms
- Plant Genetic and Mutation Studies
- Plant responses to water stress
- Plant Pathogens and Resistance
- Plant Gene Expression Analysis
- Soybean genetics and cultivation
- Plant nutrient uptake and metabolism
- Plant-Microbe Interactions and Immunity
- Crop Yield and Soil Fertility
- Plant pathogens and resistance mechanisms
- Genetics, Bioinformatics, and Biomedical Research
- Genetics and Plant Breeding
- Genomics and Phylogenetic Studies
- Gene expression and cancer classification
University of Arkansas at Fayetteville
2015-2025
University of Arkansas System
2016-2023
Wageningen University & Research
1991-2022
Louisiana State University Agricultural Center
2022
Virginia Tech
2007-2017
University of Botswana
2017
New Mexico Consortium
2017
Fayetteville Public Library
2015
Molecular Sciences Software Institute
2011
International Rice Research Institute
2009-2010
Abstract The interface between plants and the environment plays a dual role as protective barrier well medium for exchange of gases, water, nutrients. primary aerial plant surfaces are covered by cuticle, acting essential permeability toward atmosphere. It is heterogeneous layer composed mainly lipids, namely cutin intracuticular wax with epicuticular waxes deposited on surface. We identified an Arabidopsis thaliana activation tag gain-of-function mutant shine (shn) that displayed brilliant,...
<ns4:p>Plants in their natural habitats adapt to drought stress the environment through a variety of mechanisms, ranging from transient responses low soil moisture major survival mechanisms escape by early flowering absence seasonal rainfall. However, crop plants selected humans yield products such as grain, vegetable, or fruit favorable environments with high inputs water and fertilizer are expected an economic product response inputs. Crop for need survive that maintain yield. Studies on...
Abstract Plant drought stress response and resistance are complex biological processes that need to be analyzed at a systems level using genomics physiological approaches dissect experimental models address stresses encountered by crops in the field. Toward this goal, controlled, sublethal, moderate (mDr) treatment system was developed Arabidopsis (Arabidopsis thaliana) as reproducible assay for dissection of plant responses drought. The validated mutants abscisic acid (ABA) biosynthesis...
Freshwater is a limited and dwindling global resource; therefore, efficient water use required for food crops that have high demands, such as rice, or the production of sustainable energy biomass. We show here expression Arabidopsis HARDY ( HRD ) gene in rice improves efficiency, ratio biomass produced to used, by enhancing photosynthetic assimilation reducing transpiration. These drought-tolerant, low-water-consuming plants exhibit increased shoot under well irrigated conditions an adaptive...
Late blight, caused by the oomycete pathogen Phytophthora infestans, is most devastating disease for potato cultivation. Here, we describe positional cloning of Rpi-blb1 gene from wild species Solanum bulbocastanum known its high levels resistance to late blight. The locus, which confers full complex isolates P. infestans and race specificity has not yet been demonstrated, was mapped in an intraspecific S. population on chromosome 8, 0.3 cM marker CT88. Molecular analysis a bacterial...
The aerial parts of plants are coated with an epicuticular wax layer, which is important as a first line defense against external influences. In Arabidopsis, the ECERIFERUM (CER) genes effect different steps biosynthesis pathway. this article, we describe isolation CER1 gene, encodes novel protein involved in conversion long chain aldehydes to alkanes, key step was biosynthesis. cloned after gene tagging heterologous maize transposable element system Enhancer-Inhibitor, also known...
The necessity to develop potato and tomato crops that possess durable resistance against the oomycete pathogen Phytophthora infestans is increasing as more virulent, crop-specialized pesticide resistant strains of are rapidly emerging. Here, we describe positional cloning Solanum bulbocastanum-derived Rpi-blb2 gene, which even when present in a background confers broad-spectrum late blight resistance. locus was initially mapped several tetraploid backcross populations, derived from highly...
Abstract Drought stress affects cereals especially during the reproductive stage. The maize (Zea mays) drought transcriptome was studied using RNA-Seq analysis to compare drought-treated and well-watered fertilized ovary basal leaf meristem tissue. More drought-responsive genes responded in compared with meristem. Gene Ontology enrichment revealed a massive decrease transcript abundance of cell division cycle drought-stressed only. Among categories related carbohydrate metabolism, changes...
SPECIALTY GRAND CHALLENGE article Front. Plant Sci., 27 July 2016Sec. Abiotic Stress Volume 7 - 2016 | https://doi.org/10.3389/fpls.2016.01123
Abstract Plants capture solar energy and atmospheric carbon dioxide (CO 2 ) through photosynthesis, which is the primary component of crop yield, needs to be increased considerably meet growing global demand for food. Environmental stresses, are increasing with climate change, adversely affect photosynthetic metabolism (PCM) limit yield cereals such as rice ( Oryza sativa that feeds half world. To study regulation we developed a gene regulatory network identified transcription factor HYR...
The jasmonate family of phytohormones plays central roles in plant development and stress acclimation. However, the architecture their signaling circuits remains largely unknown. Here we describe a binding protein, cyclophilin 20-3 (CYP20-3), which regulates stress-responsive cellular redox homeostasis. (+)-12-oxo-phytodienoic acid (OPDA) promotes CYP20-3 to form complex with serine acetyltransferase 1, triggers formation hetero-oligomeric cysteine synthase O -acetylserine(thiol)lyase B...
Summary The Arabidopsis thaliana MALE STERILITY 2 ( MS2 ) gene product is involved in male gametogenesis. first abnormalities pollen development of ms2 mutants are seen at the stage microsporogenesis when microspores released from tetrads. Expression observed tapetum wild‐type flowers at, and shortly after, release promoter controls GUS expression a comparable transgenic tobacco containing an promoter‐GUS fusion. occasional grains produced by mutant plants have very thin walls. They also...
The ANTHOCYANINLESS2 (ANL2) gene was isolated from Arabidopsis by using the maize Enhancer–Inhibitor transposon tagging system. Sequencing of ANL2 showed that it encodes a homeodomain protein belonging to HD–GLABRA2 group. As we report here, this homeobox is involved in accumulation anthocyanin and root development. Histological observations anl2 mutant revealed greatly suppressed subepidermal cells but only slightly reduced epidermal cells. Furthermore, primary roots an aberrant cellular...
Disease resistance in plants is a desirable economic trait. A number of disease genes from various plant species have been cloned so far. The gene products some these can be distinguished by the presence an N-terminal nucleotide binding site and C-terminal stretch leucine-rich repeats. Although are structurally related, DNA sequences poorly conserved. Only parts share enough identity to design primers for polymerase chain reaction amplification related sequences. Such were used amplify...
Rice ( Oryza sativa ) is the reference genome for grasses, including cereals. The complete sequence lays foundation comparative genomics to other grasses based on structure and individual gene function ([Devos, 2005][1]; [International Genome Sequencing Project,
Abstract Cellulose from plant biomass is the largest renewable energy resource of carbon fixed atmosphere, which can be converted into fermentable sugars for production ethanol. However, cellulose present as lignocellulosic embedded in a hemicellulose and lignin matrix it needs to extracted efficient processing. Here, we show that expression an Arabidopsis (Arabidopsis thaliana) transcription factor, SHINE (SHN), rice (Oryza sativa), model grasses, causes 34% increase 45% reduction content....
Summary The physiological role of a vacuolar ATPase subunit c1 ( SaVHAc1 ) from halophyte grass Spartina alterniflora was studied through its expression in rice. ‐expressing plants showed enhanced tolerance to salt stress than the wild‐type plants, mainly adjustments early stage and preparatory responses. In addition increased accumulation own transcript, led messages other native genes rice, especially those involved cation transport ABA signalling. maintained higher relative water content...
Rice (Oryza sativa) is the primary food source for more than one-half of world's population. Because rice cultivation dependent on water availability, drought during flowering severely affects grain yield. Here, we show that function a drought-inducible receptor-like cytoplasmic kinase, named GROWTH UNDER DROUGHT KINASE (GUDK), required yield under and well-watered conditions. Loss-of-function gudk mutant lines exhibit sensitivity to salinity, osmotic stress, abscisic acid treatment at...
Abstract Drought transcriptome analysis of finger millet ( Eleusine coracana ) by cDNA subtraction identified drought responsive genes that have a potential role in tolerance. Through virus-induced gene silencing (VIGS) related crop species, maize Zea mays ), several genes, including G-BOX BINDING FACTOR 3 GBF3 were as candidate stress response and the tolerance was studied Arabidopsis thaliana . Overexpression both EcGBF3 AtGBF3 A. resulted improved to osmotic stress, salinity addition...