A5027713269- Insect-Plant Interactions and Control
- Plant biochemistry and biosynthesis
- Allelopathy and phytotoxic interactions
- Plant Parasitism and Resistance
- Plant Reproductive Biology
- Weed Control and Herbicide Applications
- GABA and Rice Research
- Insect Resistance and Genetics
- Plant Virus Research Studies
- Insect and Pesticide Research
- Genetic Mapping and Diversity in Plants and Animals
- Lipid Membrane Structure and Behavior
- Plant Molecular Biology Research
- Microbial Metabolic Engineering and Bioproduction
- Global Peace and Security Dynamics
- Essential Oils and Antimicrobial Activity
- Plant Gene Expression Analysis
- Horticultural and Viticultural Research
- Biochemical Acid Research Studies
- American Constitutional Law and Politics
- Metabolism and Genetic Disorders
Ithaca College
2017-2024
Cornell University
2017-2024
Institut d'Etudes Politiques de Paris
2018
Martin Luther University Halle-Wittenberg
2014-2017
Benzoxazinoids are a class of indole-derived plant metabolites that function in defense against numerous pests and pathogens. Due to their abundance maize (Zea mays) other important cereal crops, benzoxazinoids have been the subject extensive research for >50 years. Whereas can account 1% or more dry weight young seedlings constitutively, accumulation older plants is induced locally by pest pathogen attack. Although biosynthetic pathways most identified, unanswered questions remain about...
As a response to insect attack, maize (Zea mays) has inducible defenses that involve large changes in gene expression and metabolism. Piercing/sucking insects such as corn leaf aphid (Rhopalosiphum maidis) cause direct damage by acquiring phloem nutrients well indirect through the transmission of plant viruses. To elucidate metabolic processes involved responses leaves inbred line B73 were infested with aphids for 2 96 h. Analysis showed two distinct phases, most significant transcriptional...
Plant volatiles not only have multiple defense functions against herbivores, fungi, and bacteria, but also been implicated in signaling within the plant toward other organisms. Elucidating function of individual will require more knowledge their biosynthesis regulation response to external stimuli. By exploiting variation herbivore-induced among 26 maize (Zea mays) inbred lines, we conducted a nested association mapping genome-wide study (GWAS) identify set quantitative trait loci (QTLs) for...
Cultivated maize (Zea mays) has retained much of the genetic diversity its wild ancestors. Here, we performed nontargeted liquid chromatography-mass spectrometry metabolomics to analyze metabolomes 282 inbred lines in Goodman Diversity Panel. This analysis identified a bimodal distribution foliar metabolites. Although 15% detected mass features were present >90% lines, majority found <50% samples. Whereas leaf bases and tips differentiated by flavonoid abundance, varieties (stiff-stalk,...
Abstract Background The corn leaf aphid (Rhopalosiphum maidis Fitch) is the most economically damaging pest on maize (Zea mays), one of world's important grain crops. In addition to causing direct damage by removing photoassimilates, R. transmits several destructive viruses, including yellow dwarf virus, barley sugarcane mosaic and cucumber virus. Findings genome a parthenogenetically reproducing clone was assembled with combination Pacific Biosciences (207-fold coverage) Illumina (83-fold...
Abstract Maize seedlings emit sesquiterpenes during the day in response to insect herbivory. Parasitoids and predators use induced volatile blends find their hosts or prey. To investigate diurnal regulation of biosynthesis emission sesquiterpenes, we applied linolenoyl‐ L ‐glutamine ( LG ) maize morning evening using a cut‐stem assay tracked farnesene emission, planta accumulation, as well transcript levels farnesyl pyrophosphate synthase 3 Z m FPPS terpene synthase10 TPS 10 throughout...
Summary The maize ( Zea mays ) genome encodes three indole‐3‐glycerolphosphate synthase enzymes (IGPS1, 2, and 3) catalyzing the conversion of 1‐(2‐carboxyphenylamino)‐l‐deoxyribulose‐5‐phosphate to indole‐3‐glycerolphosphate. Three further (BX1, benzoxazinoneless 1; TSA, tryptophan alpha subunit; IGL, indole glycerolphosphate lyase) convert indole, which is released as a volatile defense signaling compound also serves precursor for biosynthesis defense‐related benzoxazinoids. Phylogenetic...
Abstract Maize ( Zea mays ) emits volatile terpenes in response to insect feeding and egg deposition defend itself against harmful pests. However, maize cultivars differ strongly their ability produce the defense signal. To further understand agroecological role underlying genetic mechanisms for variation terpene emission among cultivars, we studied production of an important signaling component E )‐caryophyllene a South American landrace Braz1006 possessing stemborer Chilo partellus...
The cell plasma membrane is a two-dimensional, fluid mosaic material composed of lipids and proteins that create semipermeable barrier defining the from its environment. Compared with soluble proteins, methodologies for structural functional characterization are challenging. An emerging tool studies in mammalian systems "plasma on chip," also known as supported lipid bilayer. Here, we "plant-membrane-on-a-chip,″ bilayer made plant membranes Arabidopsis thaliana, Nicotiana benthamiana, or Zea...
Abstract An enormous diversity of specialized metabolites is produced in the plant kingdom, with each individual synthesizing thousands these compounds. Previous research showed that benzoxazinoids, most abundant class maize, also function as signaling molecules by regulating production callose a defense response. In this study, we identified catechol acetylglucose (CAG) benzoxazinoid-regulated metabolite from salicylic acid via and catechol-glucoside. Genome wide association studies CAG...
An enormous diversity of specialized metabolites is produced in the plant kingdom, with each individual synthesizing thousands these compounds. Previous research showed that benzoxazinoids, most abundant class maize, also function as signaling molecules by regulating production callose a defense response. We searched for additional benzoxazinoid-regulated metabolites, characterized them, examined whether they too herbivore protection, and determined how Spodoptera frugiperda (fall armyworm),...
Abstract The maize ( Zea mays ) genome encodes three indole-3-glycerolphosphate synthase enzymes (IGPS1, 2, and 3) catalyzing the conversion of 1-(2-carboxyphenylamino)-l-deoxyribulose-5-phosphate to indole-3-glycerolphosphate. Three further (BX1, benzoxazinoneless 1; TSA, tryptophan α subunit; IGL, indole glycerolphosphate lyase) convert indole, which is released as a volatile defense signaling compound also serves precursor for biosynthesis defense-related benzoxazinoids. Phylogenetic...