Lower
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            H Limit for the Existence of Blue-Green Algae: Evolutionary and Ecological Implications

Brock, Thomas D.

doi:10.1126/science.179.4072.480

Cited by 247 publications

(134 citation statements)

References 15 publications

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“…One is that the lichen reproduction is probably more sensitive to acid rain, botb the germination of the asco-spores (Beiandria, Asta & Nurit, 1989) and the abundance and distribution of free-living cyanobacteria. Wodzinski, Labeda & Alexander (1977) reported that cyanobacteria are much more sensitive than green algae to bisulphite and nitrite, and Brock (1973) and Granhall (1975) reported cyanobacteria to he rare on soil with pH values below 44. The threat to reproduction of cyanophilic lichens is in urgent need of study in the future.…”

Section: Discussionmentioning

confidence: 99%

Effects of simulated nitrogen rich and acid rain on the nitrogen‐fixing lichen Peltigera aphthosa (L.) Willd.

Hallingbäck

Kellner

1992

New Phytologist

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summary The nitrogen‐fixing lichen Pettigera aphthosa (L.) Willd. was treated under semi‐natural conditions with simulated rain containing different combinations of ammonium, nitrate and sulphuric acid. Nitrogen in neutral solution had no negative effect on the nitrogen fixation rate. Sulphuric acid had a negative effect on nitrogen fixation rate, especially in combination with ammonium. The results could suggest an explanation for the sudden decline of P. aphthosa in southern Sweden.

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Section: Discussionmentioning

confidence: 99%

Effects of simulated nitrogen rich and acid rain on the nitrogen‐fixing lichen Peltigera aphthosa (L.) Willd.

Hallingbäck

Kellner

1992

New Phytologist

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“…For an optimal growth of cyanobacteria, the soil pH should be slightly alkaline or neutral (Belnap and Lange, 2003;Rosentreter and Belnap, 2003), while on ASD the pH ranged from 5.1 to 5.6 and on RFP from 4.9 to 5.7 (Gypser et al, 2015). Under acidic soil conditions and pH values below 5 or 4 these organisms were normally absent (Brock, 1973) and more eukaryotic green algae appear (Lukešová, 2001). Due to this reason, we isolated green algal filaments of Zygogonium spec.…”

Section: Water Repellency and Infiltrationmentioning

confidence: 99%

Infiltration and water retention of biological soil crusts on reclaimed soils of former open-cast lignite mining sites in Brandenburg, north-east Germany

Gypser

Veste

Fischer

et al. 2016

Journal of Hydrology and Hydromechanics

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Investigations were done on two former open-cast lignite mining sites under reclamation, an artificial sand dune in Welzow Süd, and a forest plantation in Schlabendorf Süd (Brandenburg, Germany). The aim was to associate the topsoil hydrological characteristics of green algae dominated as well as moss and soil lichen dominated biological soil crusts during crustal succession with their water retention and the repellency index on sandy soils under temperate climate and different reliefs.The investigation of the repellency index showed on the one hand an increase due to the cross-linking of sand particles by green algae which resulted in clogging of pores. On the other hand, the occurrence of moss plants led to a decrease of the repellency index due to absorption caused by bryophytes. The determination of the water retention curves showed an increase of the water holding capacity, especially in conjunction with the growth of green algae layer. The pore-related van Genuchten parameter indicate a clay-like behaviour of the developed soil crusts. Because of the inhomogeneous distribution of lichens and mosses as well as the varying thickness of green algae layers, the water retention differed between the study sites and between samples of similar developmental stages. However, similar tendencies of water retention and water repellency related to the soil crust formation were observed.Biological soil crusts should be considered after disturbances in the context of reclamation measures, because the initial development of green algae biocrusts lead to an increasing repellency index, while the occurrence of mosses and a gain in organic matter enhance the water holding capacity. Thus, the succession of biocrusts and their small-scale succession promote the development of soil and ecosystem.

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“…Most cyanobacteria are associated with alkaline conditions and few are found in acidic environments where the pH is less than 4 or 5 (Brock 1973). Cyanobacteria may be at a competitive advantage over other phytoplankton because of their ability to utilise both free CO2 and bicarbonate ions as a source of inorganic carbon in photosynthesis (e.g., Tailing 1976).…”

Section: Carbon and Cyanobacteriamentioning

confidence: 99%

The role of macronutrients (C, N, P) in controlling cyanobacterial dominance in temperate lakes

Pick

Lean²

1987

New Zealand Journal of Marine and Freshwater Research

118

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Cyanobacteria are the only group of phytoplankton to show a clear increase both in biomass and relative contribution to total phytoplankton biomass as temperate lakes become eutrophic. Correlative studies indicate that this increase begins at total phytoplankton biomass levels of 3-5 mg fresh weight l -1 or spring total phosphorus (TP) concentrations of 25-30 μg l -1 . Above TN : TP ratios of 30, cyanobacteria tend to become rare, but below this value they may or may not dominate. Better predictions may be possible by attempting to remove the influence of the refractory dissolved organic nitrogen and phosphorus fractions by using the TN-DON : TP-DOP ratio. While experimental manipulation of N : P ratios in enclosures or entire lakes may often stimulate or suppress relative cyanobacterial biomass, laboratory studies do not clearly link low N : P ratios with cyanobacteria. Evidence from correlative studies, long-term records of individual lakes, and experimental manipulations of nutrient loads suggest that other factors such as temperature, mixing regimes, transparency, and iron or carbon availability may influence cyanobacterial dominance in lakes.

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Lower p H Limit for the Existence of Blue-Green Algae: Evolutionary and Ecological Implications

Cited by 247 publications

References 15 publications

Effects of simulated nitrogen rich and acid rain on the nitrogen‐fixing lichen Peltigera aphthosa (L.) Willd.

Effects of simulated nitrogen rich and acid rain on the nitrogen‐fixing lichen Peltigera aphthosa (L.) Willd.

Infiltration and water retention of biological soil crusts on reclaimed soils of former open-cast lignite mining sites in Brandenburg, north-east Germany

The role of macronutrients (C, N, P) in controlling cyanobacterial dominance in temperate lakes

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