Entries by Amey Redkar

What We’re Reading: February 16th

Guest Editor: Dr. Amey Redkar Amey is a postdoc at The Sainsbury Laboratory, Norwich, UK and has been a Plantae Fellow since September 2017. He is working to understand the interaction of plants and pathogens during disease development. His current research which is funded by EMBO Long Term Fellowship focuses on pathogen Albugo candida, which […]

Review. Rise of a cereal killer:  The biology of Magnaporthe oryzae biotrophic growth

The fungal pathogen Magnaporthe oryzae causes one of the most destructive diseases of rice, destroying around 10-30% of rice production world-wide. The pathogen undergoes different developmental changes and produce specialized infectious structures in order to rapidly proliferate within the host cells. The detailed molecular processes of how the fungus co-ordinates this complex infection pattern is […]

Opinion: Plant pathogen effector proteins as manipulators of host microbiomes? (Mol Plant)

To understand disease development, effector research has mainly focused on the direct interaction of pathogen-derived molecules with plant host targets, or their sensing by surface or intracellular receptors. Recently, attention has turned to the plant microbiome and its key role in maintaining plant health. How microbial communities are manipulated by plant pathogens in sensing and […]

The biotrophic development of Ustilago maydis studied by RNAseq analysis (Plant Cell)

The corn smut fungus Ustilago maydis that causes tumorous symptoms on all aerial parts of maize has established itself as a model system to dissect host colonization strategies by biotrophic fungi. Transcriptional responses upon U. maydis colonization were previously demonstrated by several studies using an engineered solopathogenic strain of U. maydis. However, a time-resolved transcriptional […]

Update: SnRK1 kinase as a central mediator of energy signaling between different organelles (Plant Physiology)

The heterotrimeric SNF1-related protein kinase 1 (SnRK1) in plants is an orthologue of yeast SNF1 (sucrose non-fermenting 1) kinase and the mammalian AMPK (AMP-58 activated protein kinase). A significant array of genetic evidence during the past years has identified SnRK1 as a key regulator of cellular metabolism during starvation and nutrient acquisition. Yet, the connections […]

Transposon-derived small RNAs triggered by miR845 mediate genome dosage response in Arabidopsis

Nat. Genet. Silencing of transposable elements (TEs) is mediated epigenetically by DNA methylation, relying partially on RNA-directed DNA methylation (RdDM). RdDM-induced DNA methylation undergoes a global reprogramming in the male germline, allowing expression of imprinted genes regulating fertility and seed viability. Concomitantly, the production of epigenetically-activated small interfering RNA (easiRNA) from TEs transcripts have been […]

SLAM-ITseq: Sequencing cell type-specific transcriptomes without cell sorting

BioRxiv. Transcriptomic changes at the cellular level are of key importance in specialized cellular types. Therefore, transcriptome analysis at a cell-specific resolution is a powerful tool to learn about biological processes. This analysis is however limited by technological boundaries of microdissection and/or cell sorting methods, such as laser capture microdissection (LCM) or fluorescence-activated cell sorting […]

Drastic genome reduction in an herbivore’s pectinolytic symbiont

Cell. In a very interesting report, Salem et al., showed evidence of an alternative mechanism supporting how the degradation of pectin, a very hard to metabolize component of the cell wall, has directed the evolution of herbivory in insects and arthropods. Recent reports have indicated that horizontally acquired genes that code for essential metabolites or […]

C4 photosynthesis evolved in warm climates but promoted migration to cooler ones

Ecol. Lett. C4 photosynthesis represents a biochemical CO2-concentrating mechanism that increases Rubisco-mediated carboxylation of RuBP and reduces photorespiration. However, there is an energy cost associated with C4 photosynthesis, and so it is presumed to become advantageous over C3 photosynthesis only when levels of photorespiration are high, such as in hot and/or dry environments.  This ecological […]