plant science
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plant science, particularly genomes and plant-pathogen interactions
Curated by laura baxter
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Curr Opin Plant Biol: Inside plant: biotrophic strategies to modulate host immunity and metabolism (2014)

Curr Opin Plant Biol: Inside plant: biotrophic strategies to modulate host immunity and metabolism (2014) | plant science | Scoop.it

Filamentous plant pathogens that establish biotrophic interactions need to avoid plant immune responses. Recent findings from different pathosystems suggest that sufficient suppression of host immunity is based on the modulation of a rather limited number of host targets. Microbial strategies to target host physiology dependent on the duration of biotrophy, the style of host tissue colonization and the degree of interference with plant development. In this article, we present current concepts in biotrophic virulence strategies and discuss mechanisms of pathogen adaptation and effector specialization.


Via Kamoun Lab @ TSL, Francis Martin
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PLOS ONE: Bioinformatic Inference of Specific and General Transcription Factor Binding Sites in the Plant Pathogen Phytophthora infestans (2012)

PLOS ONE: Bioinformatic Inference of Specific and General Transcription Factor Binding Sites in the Plant Pathogen Phytophthora infestans (2012) | plant science | Scoop.it

Plant infection by oomycete pathogens is a complex process. It requires precise expression of a plethora of genes in the pathogen that contribute to a successful interaction with the host. Whereas much effort has been made to uncover the molecular systems underlying this infection process, mechanisms of transcriptional regulation of the genes involved remain largely unknown. We performed the first systematic de-novo DNA motif discovery analysis inPhytophthora. To this end, we utilized the genome sequence of the late blight pathogenPhytophthora infestans and two related Phytophthora species (P. ramorum and P. sojae), as well as genome-wide in planta gene expression data to systematically predict 19 conserved DNA motifs. This catalog describes common eukaryotic promoter elements whose functionality is supported by the presence of orthologs of known general transcription factors. Together with strong functional enrichment of the common promoter elements towards effector genes involved in pathogenicity, we obtained a new and expanded picture of the promoter structure in P. infestans. More intriguingly, we identified specific DNA motifs that are either highly abundant or whose presence is significantly correlated with gene expression levels during infection. Several of these motifs are observed upstream of genes encoding transporters, RXLR effectors, but also transcriptional regulators. Motifs that are observed upstream of known pathogenicity-related genes are potentially important binding sites for transcription factors. Our analyses add substantial knowledge to the as of yet virtually unexplored question regarding general and specific gene regulation in this important class of pathogens. We propose hypotheses on the effects of cis-regulatory motifs on the gene regulation of pathogenicity-related genes and pinpoint motifs that are prime targets for further experimental validation.


Via Kamoun Lab @ TSL
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Differences in the genomes of related plant pathogens

Differences in the genomes of related plant pathogens | plant science | Scoop.it
Differences in the genomes of related plant pathogens. August 12, 2012. Many crop plants worldwide are attacked by a group of fungi that numbers more than 680 different species. After initial invasion, they first grow stealthily inside living ...
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Discovery of 100 million-year-old regions of DNA shows short cut to crop science advances

Discovery of 100 million-year-old regions of DNA shows short cut to crop science advances | plant science | Scoop.it
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Watermelon genome gives clues to disease resistance, plant vascular system - UC Davis

Watermelon genome gives clues to disease resistance, plant vascular system - UC Davis | plant science | Scoop.it
UC DavisWatermelon genome gives clues to disease resistance, plant vascular systemUC DavisThe information could dramatically accelerate both breeding of more nutritious, tasty and disease-resistant fruit, and progress on understanding the role of...
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MIPS PlantsDB: a database framework for comparative plant ...

The rapidly increasing amount of plant genome (sequence) data enables powerful comparative analyses and integrative approaches and also requires structured and comprehensive information resources. Databases are ...
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Prioritizing Rather Than Canvassing Entire Plant Genome May Lead to Improved ... - Science Daily (press release)

Prioritizing Rather Than Canvassing Entire Plant Genome May Lead to Improved ... - Science Daily (press release) | plant science | Scoop.it
Prioritizing Rather Than Canvassing Entire Plant Genome May Lead to Improved ...Science Daily (press release)Historically, scientists have analyzed an isolated region of a plant genome -- often taking a trial-and-error approach at finding what...
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Scientists Identify Genetic Mechanism That Contributed to Irish Famine - Bioscience Technology

Scientists Identify Genetic Mechanism That Contributed to Irish Famine - Bioscience Technology | plant science | Scoop.it
Bioscience Technology Scientists Identify Genetic Mechanism That Contributed to Irish Famine Bioscience Technology A team of researchers at the University of California, Riverside focused on Phytophthora, the pathogen that triggered the Irish...
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Can genomics boost productivity of orphan crops? : Nature Biotechnology : Nature Publishing Group

Can genomics boost productivity of orphan crops? : Nature Biotechnology : Nature Publishing Group | plant science | Scoop.it
laura baxter's insight:

genomics-assisted crop breeding for global food security

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Plant & Crop Science Blog: Salk study finds stress triggers widespread epigenetic changes that aid in disease resistance

Plant & Crop Science Blog: Salk study finds stress triggers widespread epigenetic changes that aid in disease resistance | plant science | Scoop.it
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Europe to Pump $26M into Plant Molecular Science Consortia - GenomeWeb

Europe to Pump $26M into Plant Molecular Science Consortia - GenomeWeb | plant science | Scoop.it
Europe to Pump $26M into Plant Molecular Science ConsortiaGenomeWebNEW YORK (GenomeWeb News) – Europe has launched a new funding call that will fuel new plant genomics and molecular biology research with an expected €20 million ($25.7 million), with...
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Scientists crack difficult wheat genome - ABC Science Online

Scientists crack difficult wheat genome - ABC Science Online | plant science | Scoop.it
ABC Science OnlineScientists crack difficult wheat genomeABC Science OnlineAccording to the paper, the plant's genome is nearly five times as big as humans.
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Cornell to Head $25M Cassava Genome-based Breeding Project - GenomeWeb

Cornell to Head $25M Cassava Genome-based Breeding Project - GenomeWeb | plant science | Scoop.it
Cornell to Head $25M Cassava Genome-based Breeding ProjectGenomeWeb... Breeding project plan to use genome sequencing and analysis to identify genes linked to traits that could be used to improve the breeding process.
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