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Showing 1 to 20 of 20 for “"zoospores"”.
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Swimming patterns of zoospores
… of auto-aggregation. That is, large numbers of zoospores observed in vitro are seen to form complex, large-scale patterns in the absence of external signals or stimuli. Current competing hypotheses suggest that patterns are formed by one of<br/>two distinct, concentrative phenomena: chemotaxis …
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Optimizing in-vitro production of Delaware-isolated Pythium zoospores
… specialized, motile, asexual structures known as zoospores released from sporangia. Research focused on Pythium-plant interactions is advanced by understanding the biology of Pythium spp., particularly through observations of zoospore production and visualization of infection. While previous …
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An Ultrastructural Study of Zoospores and Oogonia of the Green Alga Oedocladium
Made available in DSpace on 2014-12-14T13:23:11Z (GMT). No. of bitstreams: 1 7606857.pdf: 10178613 bytes, checksum: 287dcd8ec7ed9da0eae717eaa1406e84 (MD5) Previous issue date: 1975
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Effects of Infection of the Protist Parasite, Dermomycoides sp., in Dusky Gopher Frog Tadpoles
… the effects of density of the infective zoospores, host developmental stage, and tadpoles' ability to acquire resistance to <em>Dermomycoides </em>sp. on dusky gopher frog tadpoles. Tadpoles were exposed to zoospore densities of 0, 250, 500, and 750 zoospores/µL at Gosner stage 25, and we …
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The biology of crayfish plague (Aphanomyces Astaci: Schikora) in Great Britain
… In culture and a maximum of five generations of zoospores occurred at 15*C. Histopathological examinations of infected animals showed the spread of the fungus within the host to be limited. Locally cuticle, epidermis and connective tissue showed most involvement. Although nervous tissue was …
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Cell biology of settlement and adhesion processes of biofouling algae
… algae. Using the fluorescent dye FM 1-43 in Ulva zoospores to follow membrane recycling, rapid mass membrane retrieval of FM 1-43-labelled plasma membrane was found to occur to an endosomal compartment during settlement. Biolistic delivery of dextran Oregon Green BAPTA-1 and Texas Red enabled …
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Cytology and ultrastructure of eustigmatophyceae
… cells and the flagellar apparatus of the zoospores. The Vegetative cells are shown to have microfibrils (probably cellulose)' in the cell wall (Vischeria stellata), lamellate vesicles in the cytoplasm of all the species observed and a clear connection between the cfiloroplast endoplasmic …
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The Animal-fungi Hybrid Cell Cycle of the Zoosporic Fungus Spizellomyces punctatus - a New Model to Understand Evolution of Eukaryotic Cell Cycle Control
… actin dynamics with LifeAct I showed that zoospores use actin-filled pseudopods to crawl, much like amoeba or animal cells, and that sporangia rely on complex actin dynamics during the formation of zoospores that are reminiscent of animal cellularization processes. This work highlights the …
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The ecology and demography of the introduced macroalga Undaria pinnatifida (Harvey) Suringar in Port Phillip Bay, Victoria, Australia
… flux density and photoperiod on germination of zoospores, gametophyte growth and reproduction of U. pinnatifida in culture. Information on its recruitment, growth and reproductive capacity in the field is also presented for the first time for a population Australia.
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Lipid Biosynthesis and Maturation Signals in Batrachochytrium Dendrobatidis In Vitro
… by packaging of lipids into newly forming zoospores in both cell membranes and energy stores. Bands from the protein extraction for invasion mechanism determination were not sufficient for analysis.
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A biological study of Desmarestia firma (C.Ag.) Skottsb. (Phaeophyceae, Desmarestiales)
… of this species is described from culture. Zoospores from unilocular sporangia give rise to separate filamentous male and female gametophytes. Male gametophytes bear flask-shaped antheridia, each containing a single antherozooid. Female gametophytes bear club-shaped oogonia, each producing …
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The role of the skin microbiome in amphibian pathogen susceptibility in Turnbull National Wildlife Refuge
… (14,480 zoospore equivalents, number of zoospores per swab) and prevalence (91.43%) compared to R. luteiventris (intensity: 1,647.36 zoospore equivalents, prevalence: 67.74%). To evaluate whether these infection differences correlate with the skin microbiome, a culture-dependent method …
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Discovery and characterisation of viral-like sequences and viruses associated with Phytophthora pluvialis in New Zealand
… The vertical transmission of PplRV1 via zoospores was 100%. A detached pine needle assay showed that the RNC symptoms developed on pine needles inoculated with PplRV1b-infected P. pluvialis were more severe than PplRV1b-cured P. pluvialis. These combined results suggest PplRV1b may induce …
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A potential energy-saving heat treatment for re-circulated irrigation water and its biological mechanisms
… were performed to determine the survival of zoospores and chlamydospores of P. nicotianae, and oospores of P. pini as well as seven bacterial species after heat treatments at given periods of time. Greenhouse experiments were conducted to determine the applicability of the lab assay data to …
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Molecular characterization of the cucumber necrosis virus coat protein gene
… transmission to roots of cucumber seedlings by zoospores of a cucumber strain of O. radicale. Particles produced by the TBSV chimeric clone encoding the CNV coat protein were transmitted, while those produced by the CNV chimeric clone encoding the TBSV coat protein were not. These results …
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Diagnostics and epidemiology of <i>Phytophthora infestans</i> : the cause of late blight of potato
… as few as two oospores, two sporangia and four zoospores of <i>P. infestans</i>. Using primer pair INF FW2 and INF REV, ten oospores of <i>P. infestans</i> could be detected in 0.5 g soil, besides detecting the pathogen in symptomatic and symptomless leaves, stems and tubers. The assay was …
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Transcriptomic studies of the early stages of potato infection by <i>Phytophthora infestans</i>
… experiment was conducted on in vitro stages of zoospores, and mycelium grown in apoplastic fluid of N. benthamiana, nutrient rich pea broth, and sterile water. This revealed 13,819 transcripts that were differentially expressed between any two conditions. This list included transcripts encoding …