Cellular fatty acids as chemotaxonomic markers of the genera Anabaena, Aphanizomenon, Microcystis, Nostoc and Planktothrix (cyanobacteria).

Gugger, Muriel; Lyra, Christina; Suominen, Irmgard; Tsitko, Irina; Humbert, Jean Francois; Salkinoja‐Salonen, Mirja; Sivonen, Kaarina

doi:10.1099/00207713-52-3-1007

Cited by 62 publications

(85 citation statements)

References 33 publications

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“…On the other hand, the close position of the traditional genus Aphanizomenon to the planktic Anabaena-types (subg. Dolichospermum) was demonstrated (Iteman et al 2002;Gugger et al 2002aGugger et al , 2002bRajaniemi et al2005;Willame et al in press). Moreover, the both genera, planktic Anabaena and Aphanizomenon, were found heterogeneous, and were divided in several subclusters, spread among diverse groups of the planktic Anabaena/Aphanizomenon complex.…”

Section: Concept Of Generamentioning

confidence: 99%

“…In light of the above discussion it is useful to point out studies that combine the morphological and molecular approaches discussed above. Some key studies have been published, e.g., by Flechtner et al (2002) on Spirirestis, Iteman et al (2002), Gugger et al (2002aGugger et al ( , 2002b, Rajaniemi et al (2005aRajaniemi et al ( , 2005b and Willame et al (in press) on the planktic bloom-forming Anabaena /Aphanizomenon complex ( Fig. 10), Suda et al (2002) on planktic oscillarioid species, Hrouzek et al (2005) on Nostoc, Komárek et al (2004) on Cyanothece and Cyanobacterium, Gugger and Hoffmann (2004) on the stigonematalean types, and Abed et al (2002) on the new genus Halomicronema.…”

Section: Combined Molecular and Traditional Approachmentioning

confidence: 99%

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Cyanobacterial Taxonomy: Current Problems and Prospects for the Integration of Traditional and Molecular Approaches

Komárek¹

2006

ALGAE

144

115

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Cyanobacteria (Cyanophytes, Cyanoprokaryotes) are among the most fascinating organisms in the Earth's biosphere. Their origin in the Early Precambrian was one of the most important steps in evolution (Schopf 1974a(Schopf , 1974b(Schopf , 1993(Schopf , 1996. They are prokaryotic bacteria, however, their cells developed the plant-type photosynthetic apparatus that included chlorophyl a and both photosystems. The subsequent evolution of the plant kingdom is based on numerous intracellular symbioses of prokaryotic cyanobacteria with eukaryotic heterotrophs. The relative ease with which cyanobacteria enter into symbioses is a characteristic of this lineage (cf., e.g., reviews of Janson 2002; Carpenter and Foster 2002, and others). Other remarkable adaptations developed in cyanobacteria enabled them to colonize variable and extreme habitats in Earth ecosystems (Carr and Whitton 1973;Fogg et al. 1973; Whitton and Potts 2000; Rai and Gaur 2001). Cyanobacteria are the only oxyphototrophic organisms to contain Nif-genes, and mechanisms and adaptations for fixation of gaseous nitrogen. They participate in the formation of travertine and stromatolites, and a substantial part of limestone deposits over the Earth results from their metabolic activity. Several types are adapted to colonise hypersaline locations, hot springs up to over 70°C, or to enormous oscillations of temperatures and periodical drying in both cold and hot deserts. They are able to produce toxins, which can function in competitive interactions in various ecosystems. Most noteworthy is the extraordinary vitality of this special bacterial group which has not declined during its existence that has spanned billions of years.The massive developments of cyanobacterial populations have also become important because of increasing eutrophication of the biosphere. Thus there is major concern regarding "water blooms" in freshwaters of all continents, unexpected developments of cyanobacterial types in plankton and littoral zones of seas and oceans (e.g., picoplanktic Prochlorococcus, or periphytic Lyngbya majuscula), and cyanobacterial crusts in semideserts (Leptolyngbya, Microcoleus, Nostoc). From a scientific perspective the most challenging questions revolve around evolutionary strategies, the survival and diversification of cyanobacteria over the long period of their existence, and evaluation of their present diversity in nature (cf. The application of modern ecological, ultrastructural and molecular methods, aided by the cultivation of numerous cyanobacterial morphotypes, has substantially changed our knowledge of these organisms. It has led to major advances in cyanobacterial taxonomy and criteria for their phylogenetic classification. Molecular data provide basic criteria for cyanobacterial taxonomy; however, a correct phylogenetic system cannot be constructed without combining genetic data with knowledge from the previous 150 years research of cyanobacterial diversity. Thus, studies of morphological variation in nature, and modern morphological, ultrastructural...

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Section: Concept Of Generamentioning

confidence: 99%

Section: Combined Molecular and Traditional Approachmentioning

confidence: 99%

Cyanobacterial Taxonomy: Current Problems and Prospects for the Integration of Traditional and Molecular Approaches

Komárek¹

2006

ALGAE

144

115

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“…Cyanobacteria are very variable in their fatty acid compositions, with marked diVerences occurring even in the same genus (Gugger et al 2002). Due to the coexistence of diVerent cyanobacteria species in the Baltic Sea, it is not easy to identify a clear trophic signal.…”

Section: Trophodynamicsmentioning

confidence: 99%

“…Many studies reported that a characteristic fatty acid pattern of cyanobacteria consists of 16:0, 16:1, 18:2(n¡6) and 18:3(n¡3) (e.g. Murata and Nishida 1987 and references therein, Vargas et al 1998;Gugger et al 2002). The simultaneous occurrence of 18:3(n¡3) and 18:2(n¡6) with cyanobacteria and chlorophytes in the seston, indicated that elevated amounts of these fatty acids in P. acuspes were due to an augmented use of cyanobacteria in summer, since chlorophytes were only of minor importance.…”

Section: Trophodynamicsmentioning

confidence: 99%

Trophodynamics and seasonal cycle of the copepod Pseudocalanus acuspes in the Central Baltic Sea (Bornholm Basin): evidence from lipid composition

et al. 2006

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Seasonal lipid dynamics of the copepod Pseudocalanus acuspes were studied in the Bornholm Basin (Central Baltic Sea) on a monthly basis from March 2002 until March 2003 and were interpreted in light of life cycle strategies and diet selection. The individual total lipid content of females ranged from 0.9 to 1.8 g, with relative wax ester content reaching a signiWcant maximum in May (44% of total lipids) and minimum (17% of total lipids) in April and November. SigniWcant changes in size, lipid content, lipid classes and fatty acid composition of structural as well as storage lipids suggested Wve characteristic seasonal phases that were induced by diVerent feeding histories and environmental conditions. Storage lipids were characterized by 18:1(n¡9) as major component, which ranged between 44% of total fatty acids in June and 23% in February. The strong coherence between 18:1(n¡9) in the seston lipids and the occurrence of ciliates emphasized the importance of ciliates in the diet of P. acuspes. As indicated by changes in the amounts of fatty acid markers, other food sources varied over the year, suggesting an opportunistic feeding behavior. The spring period was characterized by an increase in typical diatom and dinoXagellate markers, whereas other sources, potentially cyanobacteria, became more important during summer. The life cycle strategy is discussed with respect to extant adaptations to high latitudinal habitats.

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“…Pediastrum especially between 1965-1970Stadelmann et al, 2002;van der Knaap et al, 2000) are indeed not reputed producing long-chain saturated FAs (Gugger et al, 2002;Caudales and Wells, 1992;Parker et al, 1967;Blokker et al, 1998).…”

Section: Csia Of Lake Sedimentsmentioning

confidence: 99%

Plants or bacteria? 130 years of mixed imprints in Lake Baldegg sediments (Switzerland), as revealed by compound-specific isotope analysis (CSIA) and biomarker analysis

Lavrieux¹,

Birkholz²,

Meusburger³

et al. 2018

Preprint

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Abstract. Soil erosion and associated sediment transfer are among the major causes of aquatic ecosystem and surface water quality impairment. Through land-use and agricultural practices, human activities modify the soil erosive risk and the catchment connectivity, becoming a key factor of sediment dynamics. Hence, restoration and management plans of water bodies can only be efficient if the sediment sources and the proportion attributable to different land-uses are identified. To this 15 aim, we applied two approaches, namely compound-specific isotope analysis (CSIA) of long-chain fatty acids (FA) and triterpenoid biomarker analysis, to the eutrophic Lake Baldegg and its agriculturally used catchment (Switzerland). Soils reflecting the five main land-uses of the catchment (arable lands, temporary and permanent grasslands, mixed forests, orchards) were subjected to CSIA. The compound-specific stable isotope d 13 C signatures clearly discriminate between grasslands (permanent and temporary) and forests. Signatures of agricultural land and orchards fall in-between. The soil signal was then 20 compared to the isotopic signature of a lake sediment sequence covering ca. 130 years (before 1885 to 2009). Most of the lake sediment samples lie out of the source soils polygon, most likely as a result of carbon exchanges with highly depleted material related to methanotrophic bacterial activity. The recent lake samples falling into the soil polygon indicate an important contribution of the forests, which can be explained by (1) the location of the forests on steep slopes, resulting in a higher connectivity of the forests to the lake, and (2) potential direct inputs of trees and shrubs growing along the rivers feeding the 25 lake and around the lake. Despite the strong bacterial overprint on the isotopic signal, land-use and catchment history are clearly reflected in the CSIA results, with isotopic shifts being consistent with catchment, land-use and eutrophication history.While present in the soils, the investigated highly specific biomarkers were not detected in the lake sediment. Two trimethyltetrahydrochrysenes (TTHCs), natural diagenetic products of pentacyclic triterpenoids, were found in the lake sediments. Their origin is attributed to the in-situ microbial degradation of some of the triterpenoids. While the need to 30 apportion sediment sources is especially crucial in eutrophic systems, our study stresses the importance of using caution with CSIA and triterpenoid biomarkers in such environments, where the presence of methanotrophic bacterial biomass might overprint original isotopic signals.

show abstract

Cellular fatty acids as chemotaxonomic markers of the genera Anabaena, Aphanizomenon, Microcystis, Nostoc and Planktothrix (cyanobacteria).

Cited by 62 publications

References 33 publications

Cyanobacterial Taxonomy: Current Problems and Prospects for the Integration of Traditional and Molecular Approaches

Cyanobacterial Taxonomy: Current Problems and Prospects for the Integration of Traditional and Molecular Approaches

Trophodynamics and seasonal cycle of the copepod Pseudocalanus acuspes in the Central Baltic Sea (Bornholm Basin): evidence from lipid composition

Plants or bacteria? 130 years of mixed imprints in Lake Baldegg sediments (Switzerland), as revealed by compound-specific isotope analysis (CSIA) and biomarker analysis

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