21 Result(s)
within
Article
Dunhai Li
Life Sciences
English
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Article
Fate of nitrogen fixed by nitrogen-fixing cyanobacteria in rice and soil during the vegetative growth period of rice
Nitrogen-fixing cyanobacteria (NFC) play an important role in maintaining the N pool of paddy fields, but few studies have been conducted on the N fate of NFC, especially during the vegetative growth period of...
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Effect of substituting nitrogen fertilizer with nitrogen-fixing cyanobacteria on yield in a double-rice crop** system in southern China
The efficient use of nitrogen fertilizer to increase rice production is essential for food security in China. However, the high-input of chemical nitrogen fertilizer has also resulted in soil N losses and envi...
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Study on the safe disposal and resource utilization of cyanobacterial bloom biomass in Dianchi Lake, China
To solve the problem of utilizing massive harmful algal blooms (HABs) biomass, we developed a technique involving physical purification methods, namely, microfiltration (2 μm, 0.45 μm), ultrafiltration (100 kD...
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The influence of desiccation on the recovery process of nitrogenase activity in restored biological soil crusts
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Competition between toxic and nontoxic Microcystis (Cyanophyceae) under different light and temperature conditions
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Application of sodium alginate in induced biological soil crusts: enhancing the sand stabilization in the early stage
Induced biological soil crust (IBSC) technology has proved to be an effective means for speeding up the recovery of biological soil crusts (BSC) in arid and semi-arid regions. This study aims at improving the ...
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Erratum to: Microbial Succession and Nitrogen Cycling in Cultured Biofilms as Affected by the Inorganic Nitrogen Availability
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Microbial Succession and Nitrogen Cycling in Cultured Biofilms as Affected by the Inorganic Nitrogen Availability
Biofilms play important roles in nutrients and energy cycling in aquatic ecosystems. We hypothesized that as eutrophication could change phytoplankton community and decrease phytoplankton diversity, ambient in...
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Photosynthetic characteristics and inferred changes in thylakoid membrane fluidity determine bloom succession between Anabaena and Microcystis in eutrophic lakes
Anabaena and Microcystis are common dominant cyanobacterial genera and frequently form blooms in large shallow eutrophic lakes in China. There is usually a quick succession between these ...
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Enhanced Resistance to UV-B Radiation in Anabaena sp. PCC 7120 (Cyanophyceae) by Repeated Exposure
In natural habitats, organisms especially phytoplankton are not always continuously subjected to ultraviolet-B radiation (UVBR). By simulation of the natural situation, the N2-fixing cyanobacterium Anabaena sp. P...
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The influence of soil and water physicochemical properties on the distribution of Nostoc sphaeroides (Cyanophyceae) in paddy fields and biochemical comparison with indoor cultured biomass
A survey on the distribution of Nostoc sphaeroides, an edible cyanobacterium, growing in mountain paddy fields of Zouma Town in China was carried out in May 2012. The physical and chemical properties of paddy fie...
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Development of artificially induced biological soil crusts in fields and their effects on top soil
Biological soil crusts (BSCs) could improve severe environment ecological conditions by increasing soil moisture, soil nitrogen concentration, and so on. In order to control desertification and recover the des...
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An improved method for determining phytoplankton chlorophyll a concentration without filtration
The common and routine procedure for the quantification of chlorophyll a (chl a) in aquatic studies has a series of steps. Here, we sought to find optimal conditions for phytoplankton cell harvesting, chl a extra...
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Shifting Species Interaction in Soil Microbial Community and Its Influence on Ecosystem Functions Modulating
The supportive and negative evidence for the stress gradient hypothesis (SGH) led to an ongoing debate among ecologists and called for new empirical and theoretical work. In this study, we took various biologi...
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Open AccessConformational changes in photosynthetic pigment proteins on thylakoid membranes can lead to fast non-photochemical quenching in cyanobacteria
A high non-photochemical quenching (NPQ) appeared below the phase transition temperature when Microcystis aeruginosa PCC7806 cells were exposed to saturated light for a short time. This suggested that a component...
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Competition between toxic Microcystis aeruginosa and nontoxic Microcystis wesenbergii with Anabaena PCC7120
To elucidate the changes in the proportions of microcystin (MC)-producing Microcystis, non-MC-producing Microcystis and Anabaena strains during cyanobacteria blooms, we compared their fitness under different init...
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Erratum to: Biosorption of Copper by Cyanobacterial Bloom-Derived Biomass Harvested from the Eutrophic Lake Dianchi in China
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Biosorption of Copper by Cyanobacterial Bloom-Derived Biomass Harvested from the Eutrophic Lake Dianchi in China
Biomass of cyanobacterial bloom from Lake Dianchi was used as a biosorbent for copper removal from aqueous solution. The maximum capacity was found at conditions of pH 4, initial concentration of copper was 10...
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Cytochemical changes in the developmental process of Nostoc sphaeroides (cyanobacterium)
There are several apparent developmental stages in the life cycle of Nostoc sphaeroides Kützing, an edible cyanobacterium found mainly in paddy fields in central China. The cytochemical changes in developmental s...
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Morphological characteristics and phylogenetic relationship of Anabaena species from Lakes Dianchi and Erhai, China
Although Anabaena is one of the most prevalent planktonic freshwater genus in China, there are few taxonomic reports of Anabaena strains by morphology and genetics. In this study, morphological characteristics an...
