The Frq–Frh Complex Light-Dependently Delays Sfl1-Induced Microsclerotia Formation in Verticillium dahliae DOI Creative Commons

Alexandra Nagel,

Miriam Leonard,

Isabel Maurus

и другие.

Journal of Fungi, Год журнала: 2023, Номер 9(7), С. 725 - 725

Опубликована: Июль 4, 2023

The vascular plant pathogenic fungus Verticillium dahliae has to adapt environmental changes outside and inside its host. V. harbors homologs of Neurospora crassa clock genes. molecular functions interactions Frequency (Frq) Frq-interacting RNA helicase (Frh) in controlling conidia or microsclerotia development were investigated JR2. Fungal mutant strains carrying gene deletions, an FRH point mutation, GFP fusions analyzed on transcript, protein, phenotypic levels as well pathogenicity assays tomato plants. Our results support that the Frq–Frh complex is formed it promotes conidiation, but also suppresses therefore delays formation response light. We a possible link between negative element Frq positive regulator Suppressor flocculation 1 (Sfl1) elucidate regulatory mechanism. Both Sfl1 are mainly present during onset with decreasing protein further development. Induction requires can be delayed at early time points light through complex. Gaining knowledge will improve control fungal growth wilt disease.

Язык: Английский

The Essential and the Nonessential Roles of Four Clock Elements in the Circadian Rhythm of Metarhiziumrobertsii DOI Creative Commons
Peng Han,

Yilu Zhang,

Sheng‐Hua Ying

и другие.

Journal of Fungi, Год журнала: 2022, Номер 8(6), С. 558 - 558

Опубликована: Май 25, 2022

FRQ (frequency protein), FRH (FRQ-interacting RNA helicase), and WC1 WC2 (white collar proteins) are major clock elements that govern the circadian rhythm in Neurosporacrassa. However, deletion of frh is lethal for viability N. crassa, making it elusive whether essential or nonessential rhythm. This needs clarification a fungus where not lethal. Here, nuclear ortholog proved Metarhiziumrobertsii. The nucleocytoplasmic shuttling M. robertsii FRQ, WC1, orthologs was light-dependent. Yeast two-hybrid assay validated interactions with instead WC2. well, shown as conidiation rings tint dark 15 d-old plate cultures grown at 25 °C light/dark cycle 12:12, abolished absence frq wc1, partially disturbed wc2, but unaffected frh. These results indicate requirement either fungal Further analyses mutants revealed dispensable limited roles insect-pathogenic lifecycle robertsii, respectively.

Язык: Английский

Процитировано

9

The Frq–Frh Complex Light-Dependently Delays Sfl1-Induced Microsclerotia Formation in Verticillium dahliae DOI Creative Commons

Alexandra Nagel,

Miriam Leonard,

Isabel Maurus

и другие.

Journal of Fungi, Год журнала: 2023, Номер 9(7), С. 725 - 725

Опубликована: Июль 4, 2023

The vascular plant pathogenic fungus Verticillium dahliae has to adapt environmental changes outside and inside its host. V. harbors homologs of Neurospora crassa clock genes. molecular functions interactions Frequency (Frq) Frq-interacting RNA helicase (Frh) in controlling conidia or microsclerotia development were investigated JR2. Fungal mutant strains carrying gene deletions, an FRH point mutation, GFP fusions analyzed on transcript, protein, phenotypic levels as well pathogenicity assays tomato plants. Our results support that the Frq–Frh complex is formed it promotes conidiation, but also suppresses therefore delays formation response light. We a possible link between negative element Frq positive regulator Suppressor flocculation 1 (Sfl1) elucidate regulatory mechanism. Both Sfl1 are mainly present during onset with decreasing protein further development. Induction requires can be delayed at early time points light through complex. Gaining knowledge will improve control fungal growth wilt disease.

Язык: Английский

Процитировано

2