Generation of reactive oxygen species in cyanobacteria and green algae induced by allelochemicals of submerged macrophytes

Wang, Jing; Zhu, Junying; Liu, Shaoping; Liu, Biyun; Gao, Yunni; Wu, Zhenbin

doi:10.1016/j.chemosphere.2011.06.076

Cited by 101 publications

(38 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this process, the quinone is reduced to corresponding semiquinone radical by consumption of intracellular reduction power (i.e., DADPH) and the electron of the radical transfers to oxygen forming superoxide radicals (O 2 · − ), and the quinone is reformed again in the cell of target organism (Kondo et al 1999;O'Brien 1991;Long et al 2000;Saeki et al 2000;Janeiro and Brett 2004;Wang et al 2011). This is suggested as the biochemical mechanism by which phenolic compounds, acting as allelochemicals, induce the excessive formation of ROS that triggers PCD.…”

Section: Discussionmentioning

confidence: 99%

“…One of primary responses of phytoplankton to allelopathic stress is overproduction of reactive oxygen species (ROS), including the superoxide radical (O 2 · -), hydrogen peroxide (H 2 O 2 ), and the hydroxyl radical (·OH). Wang et al (2011) showed that excessive ROS production could be induced in Microcystis aeruginosa and Pseudokirchneriella subcapitata by exposure to an acutely toxic level of the allelochemicals (+)-catechin acid and pyrogallic acid, respectively. ROS may act as chemical oxidizer causing macromolecular damage or as a signaling radical to trigger programmed cell death (PCD) in phytoplankton and higher plants (Bhattacharjee 2005;Ross et al 2006).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Programmed cell death in the cyanobacterium Microcystis aeruginosa induced by allelopathic effect of submerged macrophyte Myriophyllum spicatum in co-culture system

Zhou

Liu

et al. 2016

J Appl Phycol

View full text Add to dashboard Cite

This investigation demonstrates that programmed cell death (PCD) in a cyanobacterium, Microcystis aeruginosa, resulting from allelopathic stress induced by a submerged macrophyte, Myriophyllum spicatum, in a coculture system. The hallmarks of PCD, caspase-3-like protease activity, DNA fragmentation, and destruction of cell ultrastructure, as well as intracellular PCD signaling radicals, reactive oxygen species (ROS), and nitric oxide (NO), were measured in M. aeruginosa cells co-cultured with M. spicatum for 7 days. The results showed a dose-response relationship between M. spicatum biomass and M. aeruginosa mortality. A caspase-3-like protease was activated and elevated from day 3. Thylakoid disintegration, cytoplasmic vacuolation, and fuzzy nuclear zone were observed by transmission electron microscopy, and distinct DNA fragmentation was detected in M. aeruginosa cells at a M. spicatum biomass of 6.0 g fresh weight (FW) L −1 during the 7 days. Allelochemicals of total phenolic compounds (TPCs) were determined in co-culture water, and the concentration increased with increasing of M. spicatum biomass and co-culture time. Compared with the level of ROS production in the control group, a significant overproduction of ROS was detected in M. aeruginosa cells in the treatment group, and this was positively correlated with TPC concentration. Furthermore, the level of intracellular NO increased with the percent mortality of M. aeruginosa. The results indicated that a PCD pathway was induced in the cyanobacterium M. aeruginosa when co-cultured with the submerged macrophyte M. spicatum.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Programmed cell death in the cyanobacterium Microcystis aeruginosa induced by allelopathic effect of submerged macrophyte Myriophyllum spicatum in co-culture system

Zhou

Liu

et al. 2016

J Appl Phycol

View full text Add to dashboard Cite

show abstract

“…In the biological systems, the corresponding quinone could be reduced by intracellular reductases such as NAD(P)H to reform its parent compound (O'Brien, 1991;Wang et al, 2011). This futile redox cycles amplified the generation of O 2 À (Wang et al, 2011;Wiseman and Halliwell, 1996). SOD converts O 2 À into H 2 O 2, and H 2 O 2 can be reduced via the Fenton-type reaction in the presence of transition metals to form the OH (Please see Supporting information 2).…”

Section: Autoxidation Products Of Pa and Ros Formation In M Aeruginosamentioning

confidence: 99%

“…(Gill and Tuteja, 2010). Our previous studies indicated that the excessive production of ROS could be induced in M. aeruginosa exposed to PA (Wang et al, 2011). At present, it was unclear whether there is a cause-effect relationship between PA exposure and DNA or membrane damage.…”

Section: Introductionmentioning

confidence: 99%

Effects of pyrogallic acid on Microcystis aeruginosa: oxidative stress related toxicity

Zhang

Gao

et al. 2016

Ecotoxicology and Environmental Safety

Self Cite

View full text Add to dashboard Cite

“…ROS formation in cells exposed to catechin was higher in light than in dark conditions. Presumably, oxygen (O 2 ) and reducing power (NAD(P)H) generated during photosynthesis can enhance catechin to quinone conversion and ROS formation [134]. Pinosylvin, a dihydroxyl derivative of stilbene, was found in acetone extracts from Scots pine (Pinus sylvestris) wood and knots [47].…”

mentioning

confidence: 99%

Effect of Lignocellulose Related Compounds on Microalgae Growth and Product Biosynthesis: A Review

et al. 2014

View full text Add to dashboard Cite

Microalgae contain valuable compounds that can be harnessed for industrial applications. Lignocellulose biomass is a plant material containing in abundance organic substances such as carbohydrates, phenolics, organic acids and other secondary compounds. As growth of microalgae on organic substances was confirmed during heterotrophic and mixotrophic cultivation, lignocellulose derived compounds can become a feedstock to cultivate microalgae and produce target compounds. In this review, different treatment methods to hydrolyse lignocellulose into organic substrates are presented first. Secondly, the effect of lignocellulosic hydrolysates, organic substances typically present in lignocellulosic hydrolysates, as well as minor co-products, on growth and accumulation of target compounds in microalgae cultures is described. Finally, the possibilities of using lignocellulose hydrolysates as a common feedstock for microalgae cultures are evaluated.Keywords: lignocellulose; hydrolysis; microalgae; cultivation; extraction; bioproducts OPEN ACCESSEnergies 2014, 7 4447 Microalgae: A Source of Valuable CompoundsMicroalgae include several groups of microorganisms that belong to the Prokaryota or Eukaryota, typically found in fresh water or marine systems in single cell forms or in groups. They are capable of performing photosynthesis, producing approximately half of the atmospheric oxygen while using the greenhouse gas carbon dioxide to grow photoautotrophically [1]. Microalgae contain valuable compounds such as lipids, proteins and pigments (Table 1) which have substantial potential for commercial applications. Microalgae cells accumulate lipids which include triacylglycerides (TAGs), polyunsaturated fatty acids (PUFAs) and sterols [2]. These lipids constitute storage materials or membrane structural components in microalgae and can be used for biofuel, food supplement and pharmaceutical production. Indeed, fossil fuels are nowadays still the main source of carbon based fuels, the exploitation of which causes emission of greenhouse CO 2 . Biodiesel production from oil crops is seen as currently the best alternative, but still presents the main drawback of competing with food production for arable land. Therefore, production of biodiesel from TAGs present in microalgae can become an environmentally friendly alternative as microalgae produce oil and fix CO 2 from atmosphere without the necessity of implementing vast arable areas for cultivation [3]. On the other hand, consumption of PUFAs in the human diet can help prevent the development of cardiovascular and mental diseases [4]. Fish are a rich source of PUFAs, but uncontrolled fishing has led to a substantial decrease in the worldwide fish population [5]. Production of PUFAs from microalgae may overcome this problem. On the other hand, sterols from microalgae are important part of the diet for juvenile scallops or prawns in aquaculture hatcheries [6]. Moreover, the high protein content in microalgae makes them a possible fodder for agricultural livestock [7]. In ad...

show abstract

Generation of reactive oxygen species in cyanobacteria and green algae induced by allelochemicals of submerged macrophytes

Cited by 101 publications

References 35 publications

Programmed cell death in the cyanobacterium Microcystis aeruginosa induced by allelopathic effect of submerged macrophyte Myriophyllum spicatum in co-culture system

Programmed cell death in the cyanobacterium Microcystis aeruginosa induced by allelopathic effect of submerged macrophyte Myriophyllum spicatum in co-culture system

Effects of pyrogallic acid on Microcystis aeruginosa: oxidative stress related toxicity

Effect of Lignocellulose Related Compounds on Microalgae Growth and Product Biosynthesis: A Review

Contact Info

Product

Resources

About