Publications by authors named "Ganesan Prakash"

Foliar blast, caused by , poses a major challenge to pearl millet ( (L.) R. Br) production, leading to severe yield losses, particularly in rainfed ecologies.

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Article Synopsis
  • The Osckx2 mutant in indica rice shows increased levels of cytokinins, leading to better panicle branching, higher grain yield, and improved drought tolerance.
  • Using CRISPR/Cas9 gene editing, researchers knocked out the OsCKX2 gene, which normally inactivates cytokinins, resulting in enhanced plant growth and water-saving traits under drought conditions.
  • The study highlights the potential for using the Osckx2 allele in breeding programs to create climate-resilient rice varieties that can boost food security in challenging environments.
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The investigation is the first report on genome-wide identification and characterization of NBLRR genes in pearl millet. We have shown the role of gene loss and purifying selection in the divergence of NBLRRs in Poaceae lineage and candidate CaNBLRR genes for resistance to Magnaporthe grisea infection. Plants have evolved multiple integral mechanisms to counteract the pathogens' infection, among which plant immunity through NBLRR (nucleotide-binding site, leucine-rich repeat) genes is at the forefront.

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Background: Plant microbiome confers versatile functional roles to enhance survival fitness as well as productivity. In the present study two pearl millet panicle microbiome member species Bacillus subtilis PBs 12 and Bacillus paralicheniformis PBl 36 found to have beneficial traits including plant growth promotion and broad-spectrum antifungal activity towards taxonomically diverse plant pathogens. Understanding the genomes will assist in devising a bioformulation for crop protection while exploiting their beneficial functional roles.

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Background: The nucleotide binding site leucine rich repeat (NBLRR) genes significantly regulate defences against phytopathogens in plants. The genome-wide identification and analysis of NBLRR genes have been performed in several species. However, the detailed evolution, structure, expression of NBLRRs and functional response to Magnaporthe grisea are unknown in finger millet (Eleusine coracana (L.

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Foliar fungal blast and bacterial leaf blight have significant impacts on rice production, and their management through host resistance and agrochemicals has proven inadequate. To achieve their sustainable management, innovative approaches like leveraging the foliar microbiome, which collaborates with plants and competes against pathogens, are essential. In our study, we isolated three Pantoea strains (P.

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Rice remains the primary staple for more than half of the world's population, yet its cultivation faces numerous challenges, including both biotic and abiotic stresses. One significant obstacle is the prevalence of rice blast disease, which substantially diminishes productivity and increases cultivation costs due to frequent fungicide applications. Consequently, the presence of fungicide residues in rice raises concerns about compliance with international maximum residue limits (MRLs).

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The plant pathogen Magnaporthe oryzae poses a significant threat to global food security, and its management through the cultivation of resistant varieties and crop husbandry practices, including fungicidal sprays, has proven to be inadequate. To address this issue, we conducted small-RNA sequencing to identify the roles of miRNAs and their target genes in both resistant (PB1637) and susceptible (PB1) rice genotypes. We confirmed the expression of differentially expressed miRNAs using stem-loop qRT-PCR analysis and correlated them with rice patho-phenotypic and physio-biochemical responses.

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Plant growth-promoting endophytic microbes have drawn the attention of researchers owing to their ability to confer fitness benefits in many plant species. Here, we report agriculturally beneficial traits of rice-leaf-adapted endophytic . Our polyphasic taxonomic investigations revealed its identity as .

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Zinc binuclear cluster proteins (ZBC; Zn(II)Cys) are unique to the fungi kingdom and associated with a series of functions, , the utilization of macromolecules, stress tolerance, and most importantly, host-pathogen interactions by imparting virulence to the pathogen. Codon usage bias (CUB) is the phenomenon of using synonymous codons in a non-uniform fashion during the translation event, which has arisen because of interactions among evolutionary forces. The coding sequences from nine Ascomycetes plant pathogenic species and model system yeast were analysed for compositional and codon usage bias patterns.

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Background: With its adapted microbial diversity, the phyllosphere contributes microbial metagenome to the plant holobiont and modulates a host of ecological functions. Phyllosphere microbiome (hereafter termed phyllomicrobiome) structure and the consequent ecological functions are vulnerable to a host of biotic (Genotypes) and abiotic factors (Environment) which is further compounded by agronomic transactions. However, the ecological forces driving the phyllomicrobiome assemblage and functions are among the most understudied aspects of plant biology.

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Blast disease incited by Magnaporthe oryzae is a major threat to sustain rice production in all rice growing nations. The pathogen is widely distributed in all rice paddies and displays rapid aerial transmissions, and seed-borne latent infection. In order to understand the genetic variability, host specificity, and molecular basis of the pathogenicity-associated traits, the whole genome of rice infecting Magnaporthe oryzae (Strain RMg_Dl) was sequenced using the Illumina and PacBio (RSII compatible) platforms.

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Article Synopsis
  • Weeds, pests, and pathogens pose significant challenges to rice farming, with glyphosate being a commonly used herbicide for weed control.
  • In a study focusing on transgenic rice with glyphosate resistance, researchers found that glyphosate not only suppressed the blast disease caused by Magnaporthe oryzae but also improved antioxidant enzyme levels and photosynthesis.
  • However, the application of glyphosate was linked to the repression of several genes involved in the plant's natural defense mechanisms, showcasing both the potential benefits and drawbacks of its use in rice cultivation.
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Genome sequence-driven molecular typing tools have the potential to uncover the population biology and genetic diversity of rapidly evolving plant pathogens like Magnaporthe oryzae. Here, we report a new molecular typing technique -a digitally portable tool for population genetic analysis of M. oryzae to decipher the genetic diversity.

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The first draft genome sequence of the pearl millet blast pathogen PMg_Dl from India is presented. The genome information of will be useful to understand the speciation, genetic diversity, environmental adaptation, and pathogenic and host range determinants.

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The whole-genome assembly of a unique rice isolate from India, RMg-Dl that causes blast disease in diverse cereal crops is presented. Analysis of the 34.82 Mb genome sequence will aid in better understanding the genetic determinants of host range, host jump, survival, pathogenicity, and virulence factors of .

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Introduction: Diseases of peripheral arterial system are one of the common causes of limb pain, especially in elderly patients. Here we analyse non invasive imaging of peripheral arterial segments.

Aim: Aim of the study was to compare arterial diseases of extremities using Doppler ultrasound and CT angiography, and to find the better non-invasive modality of choice.

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