What question did this study set out to answer?

Determine the individual developmental and pathogenic functions of eight homeobox transcription factor genes in the rice blast fungus Magnaporthe oryzae.

December 4, 2009PLoS GeneticsOpen Access

Homeobox Transcription Factors Are Required for Conidiation and Appressorium Development in the Rice Blast Fungus Magnaporthe oryzae

View Full Paper

Ask AI

Bookmark

Authors

SKSeryun KimSeoul National University SPSook‐Young ParkInha University KKKyoung Su KimYonsei University

Discussion

Member takes

Implication

Gene knockout study reveals distinct roles of homeobox transcription factors in Magnaporthe oryzae morphogenesis and virulence, indicating critical control points for fungal infection.

Key Points

Determine the individual developmental and pathogenic functions of eight homeobox transcription factor genes in the rice blast fungus Magnaporthe oryzae.
Identified eight homeobox transcription factor genes (MoHOX1 to MoHOX8) within the M. oryzae genome.
Generated targeted deletion mutants for each MoHOX gene using homology-dependent gene replacement.
Evaluated mutant phenotypes for vegetative growth, conidiation, appressorium formation, plant infection, and signaling pathway interactions.
DeltaMohox2 completely lacked conidia production but maintained pathogenicity via hypha-derived appressoria, whereas DeltaMohox7 failed to form appressoria from either hyphae or germ tubes and was non-pathogenic.
DeltaMohox8 produced morphologically normal appressoria but lost pathogenicity due to defective penetration peg formation and invasive growth.
DeltaMohox1, DeltaMohox4, and DeltaMohox6 displayed developmental impairments, including altered melanin pigmentation, reduced conidium size, or stunted hyphal growth, while DeltaMohox3 and DeltaMohox5 showed no phenotypic differences from wild-type.

Cite This Study

Kim et al. (2009) studied this question.

synapsesocial.com/papers/6a78cb6ea2e0f1c8cff996ac https://doi.org/10.1371/journal.pgen.1000757

View Full Paper

Ask AI

Bookmark

Implication

Gene knockout study reveals distinct roles of homeobox transcription factors in Magnaporthe oryzae morphogenesis and virulence, indicating critical control points for fungal infection.

Homeobox Transcription Factors Are Required for Conidiation and Appressorium Development in the Rice Blast Fungus Magnaporthe oryzae

Discussion

Member takes

Implication

Key Points

Cite This Study

Homeobox Transcription Factors Are Required for Conidiation and Appressorium Development in the Rice Blast Fungus Magnaporthe oryzae

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider