A5031409196- GABA and Rice Research
- Weed Control and Herbicide Applications
- Food composition and properties
- Pesticide and Herbicide Environmental Studies
- Rice Cultivation and Yield Improvement
- Genetic Mapping and Diversity in Plants and Animals
- Allelopathy and phytotoxic interactions
- Legume Nitrogen Fixing Symbiosis
- Insect-Plant Interactions and Control
- Fungal Plant Pathogen Control
- Food Quality and Safety Studies
- Polyamine Metabolism and Applications
- Metabolomics and Mass Spectrometry Studies
- Plant and fungal interactions
- Genetics and Plant Breeding
- Probiotics and Fermented Foods
- Plant Stress Responses and Tolerance
University of Illinois Urbana-Champaign
2021-2024
The University of Queensland
2015-2020
Agriculture and Food
2015-2020
International Rice Research Institute
2011-2014
With the ever-increasing global demand for high quality rice in both local production regions and with Western consumers, we have a strong desire to understand better importance of different traits that make up grain obtain full picture demographics. Rice is by no means 'one size fits all' crop. Regional preferences are not only striking, they drive market hence major economic any breeding / improvement strategy. In this analysis, engaged experts across world perform assessment all trait...
Abstract Type II diabetes is a major chronic disease. In developing countries, the prevalence of type increasing enormously. Much research indicates that choice carbohydrates, particularly those with low glycaemic index (GI) able to assist in management or prevention diabetes. Most countries consume rice as staple. The objectives this study were determine variability GI popular improved and traditional varieties find genetic basis GI. A method predict using an vitro system was compared vivo...
Herbicide resistance in weeds can be conferred by target-site and/or non-target-site mechanisms, such as rapid metabolic detoxification. Resistance to the very-long-chain fatty acid-inhibiting herbicide, S-metolachlor, multiple herbicide-resistant populations (CHR and SIR) of waterhemp (Amaranthus tuberculatus) is metabolism compared with sensitive populations. However, enzymatic pathways for S-metolachlor are unknown. Enzyme assays using were developed determine specific activities...
Metabolic resistance to 4-hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicides is a threat in controlling waterhemp (Amaranthus tuberculatus) the USA. We investigated mechanisms syncarpic acid-3 (SA3), nonselective, noncommercial HPPD-inhibiting herbicide metabolically robust Phase I oxidation, multiple-herbicide-resistant (MHR) populations (SIR and NEB) HPPD inhibitor-sensitive (ACR SEN). Dose-response experiments with SA3 provided ED50 -based resistant : sensitive ratios of at...
Metabolic resistance to the maize-selective, HPPD-inhibiting herbicide, mesotrione, occurs via Phase I ring hydroxylation in resistant waterhemp and Palmer amaranth; however, mesotrione detoxification pathways post-Phase are unknown. This research aims (1) evaluate amaranth populations for survivorship, foliar injury, aboveground biomass, (2) determine metabolism rates during a time course, (3) identify metabolites including beyond oxidation. The populations, SYNR1 SYNR2, exhibited higher...
Abstract Allohexaploid wheat ( Triticum aestivum L.) is tolerant to halauxifen-methyl (HM) via rapid detoxification of the phytotoxic form HM, halauxifen acid (HA), non-phytotoxic metabolites. Previous research utilizing ‘Chinese Spring’ (CS) wheat, alien substitution (i.e., endogenous chromosome pair substituted with a homoeologous from diploid Sears’ goatgrass Aegilops searsii M. Feldman & Kislev) (AS), or nullisomic-tetrasomic (NT) lines indicated plants lacking 5A are more sensitive...
In this study a mapping population (F8) of ca 200 progeny from cross between the commercial rice varieties Apo and IR64 has been both genotyped phenotyped. A genotyping-by-sequencing approach was first used to identify 2,681 polymorphic SNP markers which gave dense coverage genome with good distribution across all 12 chromosomes. The coefficient parentage also low, at 0.13, confirming that parents are genetically distant each other. progeny, together parents, were grown under irrigated water...
Resistance to preemergence (PRE) soil-applied herbicides, such as inhibitors of very-long-chain fatty acid (VLCFA) elongases, was documented in two waterhemp [Amaranthus tuberculatus (Moq.) J.D. Sauer] populations (SIR and CHR) from Illinois, USA. To limit the spread resistant weed populations, rapid detection measures are necessary. Soil-based resistance assays limited by edaphic factors, application timing, variable seeding depth rainfall amount. Therefore, cost-effective techniques...
Abstract Waterhemp [ Amaranthus tuberculatus (Moq.) Sauer] is a dioecious weed that has evolved resistance to very-long-chain fatty-acid elongase (VLCFAE)–inhibiting herbicides via rapid metabolism. Although detoxification enzyme activities are associated with S -metolachlor in two multiple herbicide–resistant (MHR) A. populations from Illinois, the genetic basis of unknown. Therefore, our goal was investigate inheritance Stanford, Illinois–resistant (SIR) population. Specifically, research...