Growth and morphology of<i>Anabaena</i>strains (Cyanophyceae, Cyanobacteria) in cultures under different salinities

Stulp, B.K.; Stam, Wytze T.

doi:10.1080/00071618400650301

Cited by 12 publications

(5 citation statements)

References 9 publications

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“…Anagn. in the family Pseudanabaenaceae (Anagnostidis 1989) to those adopted by Stam & Holleman (1975) and Stulp & Stam (1984) are required. Whether P. autumnale morphotypes A and B are genetically distinct from M. vaginatus morphotypes G and H also needs investigation.…”

Section: Discussionmentioning

confidence: 99%

Morphological characterization of Oscillatoriales (Cyanobacteria) from Ross Island and southern Victoria Land, Antarctica

Broady

Kibblewhite

1991

Antartic science

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Field populations of Oscillatoriales, from fresh and saline lakes and ponds, and from terrestrial habitats, are characterised on the basis of their morphology and morphometry. Fifteen morphotypes are recognized principally from the following characteristics; cross-sectional shape of the trichome, presence or absence of a calyptra on the apical cell, Occurrence or otherwise of numerous trichomes within a common sheath, and trichome width distribution. Where possible morphotypes are assigned to traditional species described by earlier investigations of algae in the Ross Sea region and a reassessment is made of the early descriptions, in some cases using material from the identical locations to the original collections. The following traditional species are described; Lyngbya murrayi, Microcoleus vaginatus, Oscillatoria defexa, 0. koettlitzi, 0. priestleyi, 0. sancta, Phormidium autumnale and P . subproboscidea. Intraspecific morphotypes of M . vaginatus, 0. priestleyi and P . autumnale are recognised on the basis of trichome width. A new species and variety of Crinalium (Crow) Winder, Stal & Mur, a genus characterized by flattened trichomes, are described from cryoconite ponds on glaciers. C. glaciale sp. nov. possesses wide, straight trichomes in contrast to C. glaciale var. helicoides nov. var. in which trichomes are narrower and helically coiled.

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Section: Discussionmentioning

confidence: 99%

Morphological characterization of Oscillatoriales (Cyanobacteria) from Ross Island and southern Victoria Land, Antarctica

Broady

Kibblewhite

1991

Antartic science

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“…Only a few studies focusing on these problems within the genus Anabaena have been published so far (Stulp, 1982;Stulp & Stam, 1984b, 1985Zapomělová et al, 2008a); however, none of them detected significant responses in Anabaena morphology related to variable growth conditions. On the contrary, it was demonstrated on other genera that some of the features which have been traditionally used in cyanobacterial classification varied under different culture conditions (e.g., dimensions and length:width ratios of vegetative cells and appearance of colonies of chroococcacean cyanobacteria; Chang, 1988;Doers & Parker, 1988;Wilmotte, 1988;Palinska et al, 1996;Saker & Neilan, 2001).…”

Section: Taxonomic Implicationsmentioning

confidence: 94%

Polyphasic characterization of eight planktonic Anabaena strains (Cyanobacteria) with reference to the variability of 61 Anabaena populations observed in the field

et al. 2009

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The plasticity of morphological features used for single morphospecies identification was studied under varied experimental conditions (temperature, light, nitrogen, phosphorus) in eight planktonic Anabaena strains. The strains represented all of the morphospecies with coiled trichomes commonly occurring in Central Europe (two strains of A. mendotae & A. sigmoidea complex, two A. lemmermannii strains, two A. flos-aquae strains, and two strains of A. circinalis & A. crassa complex). Significant effects of the growth conditions on vegetative cell dimensions were observed in seven strains, and P concentration was the main influencing factor in most cases (six strains). Significant effect of an environmental factor (P) on akinete morphology was found in only one strain. Experimentally assessed temperature and light growth optima were specific for each strain and were not consistent with the taxonomic affiliation of the strains. Morphologies of the Anabaena strains studied were compared with the field morphologies of 61 Anabaena populations of eight morphospecies observed in the Czech Republic. The range of morphological variability of single strains under the experimental conditions spanned the total variability of the populations of relevant morphospecies observed in the field. Delimitations and proper descriptions of the morphospecies are discussed in the light of partial 16S rRNA gene sequences of the studied strains.

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“…Reed et al (1984) found that 48 strains of Cyanobacteria, representing 13 genera, were all able to compensate for osmotic stress up to 14 500 mg L-' sodium chloride. Stulp & Stam (1984) studied the salt response of 21 strains of the cyanobacterium Anabaena. They found that 15 of 21 strains grew best in fresh water and three grew as well at 17 000 mg L -' sodium chloride.…”

Section: Microbial Communitymentioning

confidence: 99%

A review of the salt sensitivity of the Australian freshwater biota

et al. 1991

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In Victoria, Australia, both dryland salinity and salinity in irrigation regions are serious agricultural problems. One option to control the latter is to pump groundwater to maintain it below the surface. However, this leaves a saline wastewater for disposal, probably into local streams or wetlands. This review of the salt sensitivity of the biota of Australian streams and wetlands gives information of interest to those responsible for developing controls on these discharges. The review addresses the lethal and sub-lethal effects of salinity on microbes (mainly bacteria), macrophytes and micro-algae, riparian vegetation, invertebrates, fish, amphibians, reptiles, mammals, and birds. Data suggest that direct adverse biological effects are likely to occur in Australian river, stream and wetland ecosystems if salinity is increased to around 1000 mg L-I. The review highlights a general lack of data on the sensitivity of freshwater plants and animals to salinity increases.

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Growth and morphology ofAnabaenastrains (Cyanophyceae, Cyanobacteria) in cultures under different salinities

Cited by 12 publications

References 9 publications

Morphological characterization of Oscillatoriales (Cyanobacteria) from Ross Island and southern Victoria Land, Antarctica

Morphological characterization of Oscillatoriales (Cyanobacteria) from Ross Island and southern Victoria Land, Antarctica

Polyphasic characterization of eight planktonic Anabaena strains (Cyanobacteria) with reference to the variability of 61 Anabaena populations observed in the field

A review of the salt sensitivity of the Australian freshwater biota

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