Berenice Romero- Doctor of Philosophy
- PostDoc Position at Louisiana State University
Berenice Romero
- Doctor of Philosophy
- PostDoc Position at Louisiana State University
Postdoctoral Researcher at Louisiana State University - Working on aphid-transmitted viruses in sweetpotatoes
About
6
Publications
8,486
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31
Citations
Introduction
I recently joined the Louisiana State University AgCenter as a postdoctoral researcher. I will examine aspects pertaining to the transmission of aphid-vectored viruses in sweet potatoes and develop diagnostic tools for this pathosystem. Before joining LSU, I obtained my PhD from the University of Saskatchewan. My PhD research focused on the interactions between a bacterial pathogen (phytoplasmas), plants, and an insect vector (aster leafhoppers).
Current institution
Additional affiliations
September 2020 - June 2024
Education
September 2018 - June 2024
March 2011 - December 2017
Publications
Publications (6)
Aster leafhopper (Hemiptera: Cicadellidae: Macrosteles quadrilineatus Forbes) is a polyphagous insect species that migrates into the upper Midwest of the United States and the Western Canadian Prairies. Populations of this insect are associated with the transmission of a plant pathogen (Candidatus Phytoplasma asteris, 16SrI) to several annual crops...
In plant-microbe-insect systems, plant-mediated responses involve the regulation and interactions of plant defense signaling pathways of phytohormones jasmonic acid (JA), ethylene (ET), and salicylic acid (SA). Phytoplasma subgroup 16SrI is the causal agent of Aster Yellows (AY) disease and is primarily transmitted by populations of aster leafhoppe...
Aster yellows phytoplasmas (AYp) are a group of obligate parasites that infect a wide range of plant species, including crops such as canola and cereals and noncrops such as dandelion and wild mustard. In the Canadian Prairies, these microorganisms are mainly transmitted by a migratory species of leafhopper ( Macrosteles quadrilineatus Forbes). Alt...
Polyphagous insects are characterized by a broad diet comprising plant species from different taxonomic groups. Within these insects, migratory species are of particular interest, given that they encounter unpredictable environments, with abrupt spatial and temporal changes in plant availability and density. Aster leafhoppers (Hemiptera: Cicadellid...
Some plant pathogens are capable of manipulating their insect vectors and plant hosts in a way that disease transmission is enhanced. Aster leafhopper (Macrosteles quadrilineatus Forbes) (Hemiptera: Cicadellidae) is the main vector of Aster Yellows Phytoplasma (Candidatus Phytoplasma asteris) in the Canadian Prairies, which causes Aster Yellows (AY...
This study demonstrates that soybean cultivars respond differentially to damage in a herbivore-specific manner, and trigger responses decreasing herbivore performance. Soybean crops are affected by a great number of insect herbivores, resulting in devastating yield losses. Secondary metabolites like proteinase inhibitors and phenolic compounds are...
Questions
Question (1)
I decided to use a GLMM with a negative binomial distribution (glmer.nb function in R) to analyze my data due to the overdispersion in my dataset and the fact that I have a random factor. I am struggling with the post-hoc analysis, as the package "emmeans" is not entirely compatible with this model (it cannot identify the original dataset) and I cannot make the script work so that the comparisons are performed on the response scale and not on the log scale. Is there any other appropriate package that works with these type of models or should I switch to a model with a "quasipoisson" distribution instead?
