Evolution of Spore Release Mechanisms in the Saprolegniaceae (Oomycetes): Evidence from a Phylogenetic Analysis of Internal Transcribed Spacer Sequences

Daugherty, John; Evans, Timothy M.; Skillom, Tally; Watson, Linda E.; Money, Nicholas P.

doi:10.1006/fgbi.1998.1077

Cited by 40 publications

(19 citation statements)

References 33 publications

(37 reference statements)

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“…The first phylogenetic analysis that attempted to map traditional spore-release characters, which had been used to define genera in the water molds (Saprolegniaceae), was reported by Daugherty et al (1998) using ITS sequence data. The familiar water mold genus Saprolegnia, which releases motile primary zoospores, seemed to form a separate clade from those genera, Achlya, Thraustotheca, and Dictyuchus, where the motile primary zoospore phase had been lost.…”

Section: A Place For the Water Molds -A Fishy Talementioning

confidence: 99%

The Evolutionary Phylogeny of Oomycetes—Insights Gained from Studies of Holocarpic Parasites of Algae and Invertebrates

Beakes

Sekimoto

2008

Oomycete Genetics and Genomics

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Section: A Place For the Water Molds -A Fishy Talementioning

confidence: 99%

The Evolutionary Phylogeny of Oomycetes—Insights Gained from Studies of Holocarpic Parasites of Algae and Invertebrates

Beakes

Sekimoto

2008

Oomycete Genetics and Genomics

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“…Oomycetes of the order Saprolegniales, such as Saprolegnia, Achlya and Aphanomyces species are endemic to all fresh water habitats around the world and they cause the saprolegniasis fish diseases. They are responsible for main types of fungal infections on fish and shellfish in aquaculture, fish farms and hobby fish tanks (Neish, Hughes 1980;Willoughby, Pickering 1977;Daugherty et al 1998;Bruno, Wood 1999;Hussein, Hatai 2002). Oomycetes infections are second only to bacterial diseases in their impact and cause considerable economic losses in aquaculture (Meyer 1991;Bly et al 1992;Bruno, Wood 1999).…”

Section: Introductionmentioning

confidence: 99%

Antifungal activity of sodium chloride on Saprolegnia diclina and Aphanomyces sp.

Ali

2013

Acta Mycol

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Sixteen identified and three unidentified species belonging to six genera of zoosporic fungi were isolated from forty water samples which were collected from different fish and fish hatcheries farms at Abbassa city, Sharkiya governorate, Egypt, using sesame seeds baiting technique at 20±2°C. Saprolegnia and Achlya contributed the broadest spectra of species diversity amongst the other genera of zoosporic fungi. Saprolegnia diclina and Aphanomyces sp. were the most prevalent species of zoosporic fungi. The abundance of zoosporic fungal species in these aquacultures was correlated with some physicochemical characteristics of the water samples. The two dominant species of zoosporic fungi were tested for their tolerance of NaCl solution and its impact on some morphological and metabolic activities of these fungi. Saprolegnia diclina tolerated concentrations of NaCl solution till 12000 μg/ml whereas the maximum resistance of Aphanomyces sp. was 8000 μg/ml. The examined morphological aspects of the two studied fungal species, which included the colony diameters, the vegetative hyphae, zoosporogenesis, zoospores discharge, sexual reproductive structures and gemmae formation, were generally affected depending upon the tested fungal species and the applied dose of NaCl solution. The low treatments of NaCl solution were significantly stimulative compared with the control for protease production by S. diclina but higher doses were significantly suppressive. A significant decline in protease activity at all applications was found when Aphanomyces sp. was treated with NaCl solution. The total free amino acids and total protein content of S. diclina and Aphanomyces sp. mycelia were almost significantly increased relative to untreated controls at the low dose of NaCl solution and they were significantly dropped at the higher concentrations by the two zoosporic fungi.

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“…Indeed, the largest cause of economic losses in aquaculture is diseased fish, and oomycete (water mould) infections rank second only to bacterial diseases in impact [1] . Oomycetes such as Saprolegniales, including the Saprolegnia, Achlya, and Aphanomyces species, have been found responsible for fish infections in aquaculture, fish farms, and hobby fish tanks [2][3][4][5][6][7][8] . Saprolegnia is one of the most destructive oomycete pathogens for fish, being endemic to all freshwater habitats around the world and partly responsible for the decline of cultured and natural populations of salmonids, cyprinids, acipensers, and other freshwater fish [9] .…”

Section: Introductionmentioning

confidence: 99%

Inhibitory effects of silver zeolite on in vitro growth of fish egg pathogen, Saprolegnia sp.

Johari¹,

Kalbassi²,

Gibson-Kueh³

2014

JCLM

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Evolution of Spore Release Mechanisms in the Saprolegniaceae (Oomycetes): Evidence from a Phylogenetic Analysis of Internal Transcribed Spacer Sequences

Cited by 40 publications

References 33 publications

The Evolutionary Phylogeny of Oomycetes—Insights Gained from Studies of Holocarpic Parasites of Algae and Invertebrates

The Evolutionary Phylogeny of Oomycetes—Insights Gained from Studies of Holocarpic Parasites of Algae and Invertebrates

Antifungal activity of sodium chloride on Saprolegnia diclina and Aphanomyces sp.

Inhibitory effects of silver zeolite on in vitro growth of fish egg pathogen, Saprolegnia sp.

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