Effects of NaCl and Na2CO3 stresses on photosynthetic ability of Chlamydomonas reinhardtii

Zuo, Zhaojiang; Chen, Zhengzhen; Zhu, Yerong; Bai, Yanling; Wang, Yong

doi:10.2478/s11756-014-0437-x

Cited by 40 publications

(25 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Generally, certain macroalgae has appropriate salinity range, and extremely high or low salinity will cause stress on its physiological process. Previous studies have shown that the growth and photosynthesis of Chlamydomonas reinhardtii Dangeard [22], Ulva fasciata Delile [23] and Dunaliella [24] were significantly inhibited under saline stress. At the same time, after long-term adaptation, macroalgae can protect themselves from the negative stress caused by salinity through regulating physiological processes, such as induction of an antioxidant system [25,26].…”

Section: Resultsmentioning

confidence: 99%

Effects of Concentrated Seawater on Photosynthetic Pigment Contents in <i>Porphyra haitanensis</i>

Zhe

Yang

Zhong

et al. 2020

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

During the production of desalination plants, concentrated seawater is expelled to local marine environments, which may lead to hypersaline pollution. This study aimed to investigate the effects of concentrated seawater on Porphyra haitanensis by exposing P. haitanensis to salinity of 40‰, 36‰ and 30‰ (considered as the control) for 2 h, 6 h, 12 h, 24 h, 48 h and 96 h. The results showed that chlorophyll a content showed no significant change among different salinities, while carotenoid, phycocyanin and phycoerythrin contents increased in treatment with 40‰ compared with the control. Carotenoid, phycocyanin and phycoerythrin can all function as antioxidants, suggesting that hypersaline exposure might trigger oxidative stress in P. haitanensis. Overall, the present study suggests that hypersaline pollution caused by desalination plants raises significant ecological risks for local marine environments.

show abstract

Section: Resultsmentioning

confidence: 99%

Effects of Concentrated Seawater on Photosynthetic Pigment Contents in <i>Porphyra haitanensis</i>

Zhe

Yang

Zhong

et al. 2020

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

show abstract

“…Salt (NaCl) stress have been reported to increase the levels of ROS and inhibit the cell growth in Chlamydomonas [ 28 ]. To examine whether overexpression of PETF or FDX5 conferred salt tolerance in transgenic Chlamydomonas lines, the PETF and FDX5 transgenic lines were treatment with 80, 160 and 240 mM salt concentrations.…”

Section: Resultsmentioning

confidence: 99%

Overexpressing Ferredoxins in Chlamydomonas reinhardtii Increase Starch and Oil Yields and Enhance Electric Power Production in a Photo Microbial Fuel Cell

Huang

Lin

Pan

et al. 2015

IJMS

View full text Add to dashboard Cite

Ferredoxins (FDX) are final electron carrier proteins in the plant photosynthetic pathway, and function as major electron donors in diverse redox-driven metabolic pathways. We previously showed that overexpression of a major constitutively expressed ferredoxin gene PETF in Chlamydomonas decreased the reactive oxygen species (ROS) level and enhanced tolerance to heat stress. In addition to PETF, an endogenous anaerobic induced FDX5 was overexpressed in transgenic Chlamydomonas lines here to address the possible functions of FDX5. All the independent FDX transgenic lines showed decreased cellular ROS levels and enhanced tolerance to heat and salt stresses. The transgenic Chlamydomonas lines accumulated more starch than the wild-type line and this effect increased almost three-fold in conditions of nitrogen depletion. Furthermore, the lipid content was higher in the transgenic lines than in the wild-type line, both with and without nitrogen depletion. Two FDX-overexpressing Chlamydomonas lines were assessed in a photo microbial fuel cell (PMFC); power density production by the transgenic lines was higher than that of the wild-type cells. These findings suggest that overexpression of either PETF or FDX5 can confer tolerance against heat and salt stresses, increase starch and oil production, and raise electric power density in a PMFC.

show abstract

“…In this respect, Wang et al [37] reported that the activity of SOD under Na 2 CO 3 stress was clearly higher than that of NaCl stress in Puccinellia tenuiflora. Zuo et al [6] documented that compared to the NaCl stress, Na 2 CO 3 stress induced more ROS production and had more toxic effects on algal photosynthetic pigments and ability, which might be caused by the high pH. Superoxide dismutase is the first enzyme of the enzymatic antioxidative pathway to convert superoxide anion into peroxides, which are scavenged by catalase.…”

Section: Effect Of Different Concentrations Of Na 2 Co 3 and Nahco 3 mentioning

confidence: 99%

“…Therefore, algae, the most abundant lower plants living in water, may suffer from salinization stress for high water evaporation [6]. Compared with lots of studies on algae stressed by chloride salt, data on the carbonate stress responses are rather limited.…”

Section: Introductionmentioning

confidence: 99%

“…These cellular processes could be affected by abiotic stresses such as sodicity. Where, there is information is available about the effects of carbonate stress on algae, although it widely exists in and even dominates water bodies [6]. Therefore, this study was carried out to determine the different effects of carbon sources (Na 2 CO 3 , NaHCO 3 ) on the growth parameters, CO 2 consumption rate, enzyme activity (LOX, SOD, CAT and Hup), intracellular lipid content, and fatty acid profiles of the green alga Pachycladella chodatii in batch culturing technique cultivation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Physiological and biochemical responses of the green algaPachycladella chodatii(SAG 2087) to sodicity stress

Fawzy

Abdel-Wahab

Hifney

2017

Egyptian Journal of Basic and Applied Sciences

View full text Add to dashboard Cite

The effects of various concentrations of different carbon sources (Na 2 CO 3 and NaHCO 3) as sodicity stress on growth parameters, CO 2 consumption rate, enzyme activity, intracellular lipid content, and fatty acid profiles of Pachycladella chodatii were studied. Generally, the total chlorophyll was increased by increasing the concentrations of Na 2 CO 3 and NaHCO 3. The biomass productivity as well consumption rate of carbon dioxide of P. chodatii reached the highest values with increasing concentrations of Na 2 CO 3 and NaHCO 3. The soluble protein content of P. chodatii was highest at the lowest Na 2 CO 3 and NaHCO 3 concentrations. The addition of different concentrations of Na 2 CO 3 and NaHCO 3 in the growth media induces lipoxygenase and superoxide dismutase specific activity. Catalase and total antioxidant enzymes were increased by supplementing the growth media with 60 and 45 mg l À1 of Na 2 CO 3 and NaHCO 3 , respectively. Hydrogenase uptake activity in P. chodatii increased gradually in all treated cultures with the time elapsed recording the maximum activity after 11 days of growth especially at 60, 45 mg l À1 of Na 2 CO 3 and NaHCO 3 respectively. Lipids content was increased at low concentration of Na 2 CO 3 (40 and 15 mg l À1) and NaHCO 3 (60, 45 mg l À1) respectively. Subsequent to algal cultivation in different concentrations of Na 2 CO 3 , the cultures were filtered and biodiesel was prepared by direct esterification of dry algal biomass. Methyl esters of palmitic, elaidic and stearic acids represented the major components while myristic, pentadecanoic and 9,12-octadecenoic acids represented a minor component of biodiesel produced from P. chodatii treated with different concentrations of Na 2 CO 3 and NaHCO 3 .

show abstract

Effects of NaCl and Na2CO3 stresses on photosynthetic ability of Chlamydomonas reinhardtii

Cited by 40 publications

References 66 publications

Effects of Concentrated Seawater on Photosynthetic Pigment Contents in <i>Porphyra haitanensis</i>

Effects of Concentrated Seawater on Photosynthetic Pigment Contents in <i>Porphyra haitanensis</i>

Overexpressing Ferredoxins in Chlamydomonas reinhardtii Increase Starch and Oil Yields and Enhance Electric Power Production in a Photo Microbial Fuel Cell

Physiological and biochemical responses of the green algaPachycladella chodatii(SAG 2087) to sodicity stress

Contact Info

Product

Resources

About