Dynamic Rearrangement of the Filamentous Actin Network Occurs during Zoosporogenesis and Encystment in the OomycetePhytophthora cinnamomi

Jackson, Sandra; Hardham, Adrienne R.

doi:10.1006/fgbi.1998.1071

Cited by 24 publications

(14 citation statements)

References 29 publications

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“…9-11; Harold and Harold, 1992;Heath and Harold, 1992;Hardham, 1992, 1993;Jackson and Hardham, 1998) and during ascospore formation in Sordaria macrospora Zickler, 1992, 1993). In Allomyces macrogynus and Phytophthora cinnamomi, asters of microtubules emanate from regions near the nucleus (Hyde and Hardham, 1992;Lowry and Roberson, 1997).…”

Section: Cytoskeletonmentioning

confidence: 95%

“…9 and 10); they are sufficiently extensive for the asters from adjacent nuclei to interact. In Saprolegnia ferax, Achlya bisexualis, and Phytophthora cinnamomi, actin microfilaments surround the nuclei and form sheet-like arrays adjacent to the developing cleavage vacuole system during subdivision of the sporangia Heath and Harold, 1992;Jackson and Hardham, 1998).…”

Section: Cytoskeletonmentioning

confidence: 99%

See 1 more Smart Citation

Use of Molecular Cytology to Study the Structure and Biology of Phytopathogenic and Mycorrhizal Fungi

Hardham

Mitchell

1998

Fungal Genetics and Biology

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Section: Cytoskeletonmentioning

confidence: 95%

Section: Cytoskeletonmentioning

confidence: 99%

Use of Molecular Cytology to Study the Structure and Biology of Phytopathogenic and Mycorrhizal Fungi

Hardham

Mitchell

1998

Fungal Genetics and Biology

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“…It was also shown to be of prime importance in the zoosporogenesis of Phytophthora (Jackson and Hardham, 1998). It was among the most prominent sequences, as 23 ESTs (0.6% of total ESTs) constituted a single contig, displaying 99% identity at the amino acid level with the P. infestans actin-A sequence.…”

Section: Ests Relevant To Hyphal Developmentmentioning

confidence: 97%

Gene identification in the oomycete pathogen Phytophthora parasitica during in vitro vegetative growth through expressed sequence tags

Panabières¹,

Amselem²,

Galiana³

et al. 2005

Fungal Genetics and Biology

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“…The molecular and cellular processes involved in zoosporogenesis by Phytophthora are not well-understood. Many of its steps are believed to be controlled by secondary messengers, such as calcium ions (Tani et al, 2004), and the cleavage of sporangial cytoplasm is associated with rearrangement of actin filaments (Jackson and Hardham, 1998). Most zoospore proteins are preformed in sporangia, which are metabolically active and thus dependent on stored carbon such as lipids for energy (Walker and van West, 2007).…”

Section: Introductionmentioning

confidence: 99%

Phosphagen kinase function in flagellated spores of the oomycete Phytophthora infestans integrates transcriptional regulation, metabolic dynamics and protein retargeting

Kagda

Ah‐Fong

et al. 2018

Molecular Microbiology

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Flagellated spores play important roles in the infection of plants and animals by many eukaryotic microbes. The oomycete Phytophthora infestans, which causes potato blight, expresses two phosphagen kinases (PKs). These enzymes store energy in taurocyamine, and are hypothesized to resolve spatial and temporal imbalances between rates of ATP creation and use in zoospores. A dimeric PK is found at low levels in vegetative mycelia, but high levels in ungerminated sporangia and zoospores. In contrast, a monomeric PK protein is at similar levels in all tissues, although is transcribed primarily in mycelia. Subcellular localization studies indicate that the monomeric PK is mitochondrial. In contrast, the dimeric PK is cytoplasmic in mycelia and sporangia but is retargeted to flagellar axonemes during zoosporogenesis. This supports a model in which PKs shuttle energy from mitochondria to and through flagella. Metabolite analysis indicates that deployment of the flagellar PK is coordinated with a large increase in taurocyamine, synthesized by sporulation-induced enzymes that were lost during the evolution of zoospore-lacking oomycetes. Thus, PK function is enabled by coordination of the transcriptional, metabolic and protein targeting machinery during the life cycle. Since plants lack PKs, the enzymes may be useful targets for inhibitors of oomycete plant pathogens.

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Dynamic Rearrangement of the Filamentous Actin Network Occurs during Zoosporogenesis and Encystment in the OomycetePhytophthora cinnamomi

Cited by 24 publications

References 29 publications

Use of Molecular Cytology to Study the Structure and Biology of Phytopathogenic and Mycorrhizal Fungi

Use of Molecular Cytology to Study the Structure and Biology of Phytopathogenic and Mycorrhizal Fungi

Gene identification in the oomycete pathogen Phytophthora parasitica during in vitro vegetative growth through expressed sequence tags

Phosphagen kinase function in flagellated spores of the oomycete Phytophthora infestans integrates transcriptional regulation, metabolic dynamics and protein retargeting

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