Lightnews — Scholar-powered news

PhytoFrontiers™

@phytofrontiers.bsky.social

91 followers 2 following 9 posts

An interdisciplinary open-access journal publishing high-quality research covering basic to applied aspects of plant health. Published by The American Phytopathological Society.

Posts Media Videos Starter Packs

PhytoFrontiers™ @phytofrontiers.bsky.social · 1d

"Efficacy of Five 14α-Demethylation Inhibitors and Four Biorational Fungicides Against Geotrichum candidum and Sour Rot of Peach,” by Bingyu Zhao et al. 🍑 Read the article in Volume 5, Number 3 of PhytoFrontiers: https://doi.org/10.1094/PHYTOFR-12-24-0137-SC

Efficacy of Five 14α-Demethylation Inhibitors and Four Biorational Fungicides Against Geotrichum candidum and Sour Rot of Peach | PhytoFrontiers™

Sour rot, caused by Geotrichum candidum Link (1809), is a postharvest disease of stone fruits, including peaches. The 14α-demethylase inhibitor (DMI) fungicide propiconazole has been used for postharvest sour rot management. However, the recent emergenc...

doi.org

PhytoFrontiers™ @phytofrontiers.bsky.social · 7d

Sensor-based techniques show potential as alternatives to visual rating techniques of plant diseases. Ronald Tapia et al. evaluated methods for canopy reflectance as a phenotyping approach that can be applied across many research contexts: https://doi.org/10.1094/PHYTOFR-06-24-0063-SC

PhytoFrontiers™ @phytofrontiers.bsky.social · 13d

David L. Roberts et al. introduce decision intelligence to enhance nematode management in sweetpotato cultivation. 🪱🍠 Learn more: https://doi.org/10.1094/PHYTOFR-09-24-0099-P

FIGURE 1
The decision intelligence process flow has three phases: A, establishing requirements; B, mapping the decision; and C, assessing and improving the causal decision model. A and B comprise decision modeling, the process of reducing stakeholders’ knowledge and preferences to causal decision models (CDMs), and inserting artificial intelligence and other models into CDMs. B and C comprise decision reasoning, the process of using decision models to discover how actions lead to outcomes and to find better actions.

1 2

PhytoFrontiers™ @phytofrontiers.bsky.social · 15d

Meloidogyne chitwoodi is one of the most important soilborne pests of potato. Michelle Soule et al. developed a qPCR assay for the identification and quantification of M. chitwoodi. Learn more: https://doi.org/10.1094/PHYTOFR-09-24-0107-FI

FIGURE 1
The tails of A, Meloidogyne chitwoodi and B, Meloidogyne hapla (photos by Inga Zasada 2022).

PhytoFrontiers™ @phytofrontiers.bsky.social · 20d

New EDNA e-probes developed by D. M. Nascimento et al. detect 20 citrus pathogens from raw HTS data. Validated as accurate and scalable tools, they support global citrus germplasm protection and biosecurity. https://doi.org/10.1094/PHYTOFR-12-24-0140-FI

FIGURE 1
Overview of the MiFi pipeline for generating e-probes. First, complete or partially assembled genomes are aligned for target pathogen and near-neighbor candidates to produce raw e-probes. Then, raw e-probes are curated using BLAST against the entire NCBI database to eliminate potential cross-reactivity.

1 1 2

PhytoFrontiers™ @phytofrontiers.bsky.social · May 19

Lena Flörl and Nicholas A. Bokulich evaluated the efficacy of universal mitochondrial and chloroplast PNA blockers across a range of concentrations and estimated their impact on alpha and beta diversity. Learn more: doi.org/10.1094/PHYT...

Review of 25 studies applying the universal peptide nucleic acid (PNA) blockers developed by Lundberg et al. (2013) in 16S rRNA gene sequencing across different plant materials and organs reveals substantial variability in concentrations used

2 3

PhytoFrontiers™ @phytofrontiers.bsky.social · Mar 21

Timothy O. Jobe et al. screened #Fusarium oxysporum isolates for 14 “secreted in xylem” (SIX) effector genes—finding SIX9 shows potential for rapid detection and race-specific quantification in infected plants. Learn more: doi.org/10.1094/PHYT...

Phylogenic tree inferred from the full-length sequence of the elongation factor 1-α gene (EF1-α) for Fusarium oxysporum f. sp. vasinfectum isolates. Included in the tree are isolates for which whole-genome sequences are available. The analysis was performed using sequences obtained from the NCBI GenBank. Sequences were aligned using the Clustal Omega alignment tool in Geneious Prime 2023.2.1 (https://www.geneious.com). Bayesian inference was performed using the MrBayes plugin in Geneious Prime 2023.2.1 using default settings and 1,100,000 bootstraps (Ronquist and Huelsenbeck 2003).

PhytoFrontiers™ @phytofrontiers.bsky.social · Feb 25

Editor’s Pick! Hope Raymond et al. compared the microbial communities of drippy blight in Colorado to those of drippy nut in California and to determine whether other pathogenic fungal or bacterial taxa are associated with the diseases. 🌳 Learn more: doi.org/10.1094/PHYT...

Signs and symptoms of drippy blight disease in Colorado and drippy nut disease in California. A, Symptomatic red oak branch displaying necrosis and oozing in Colorado; B, a common fly feeding off a dripping branch cutting in Colorado; C, symptomatic coast live oak displays necrotic acorn caps in California; D, symptomatic coast live oak acorn caps dripping with foamy bacterial ooze in California.

PhytoFrontiers™ @phytofrontiers.bsky.social · Feb 11

Lindsey Burbank et al. evaluated several risk factors for Xyella fastidiosa disease in the California olive industry, including infection of the common cultivars and acquisition by insect vectors. 🫒 Learn more: doi.org/10.1094/PHYT...

Dieback symptoms in Xylella fastidiosa-inoculated olive plants after regrowth. Inoculated plants were put through a vernalization process between 12 and 15 months postinoculation, after which new growth appeared. Dieback symptoms were still apparent in inoculated plants (Xf) as compared with healthy control plants (Ctl). Cultivar Mission was not included in comparisons at this point since several plants died of other causes.

1 2