Oxidative stress in greater duckweed (Spirodela polyrhiza) caused by long-term NaCl exposure

Chang, In-Hwa; Cheng, Kai-Teng; Huang, Po-Chuan; Lin, Yu–Chen; Cheng, Lee‐Ju; Cheng, Tai-Sheng

doi:10.1007/s11738-011-0913-7

Cited by 30 publications

(27 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results also showed that long-time salt stress led to significant decreases in the levels of chl b, total chl, and total chl/carotenoids. This is in consistent with the study of Chang et al [58], who suggested that chlorophyll b content was more sensitive to NaCl stress than chlorophyll a, and lower total chl/carotenoids at high salinity indicated stress and damage to the photosynthetic apparatus [59]. It is well established that carotenoids offer protection against photooxidation by helping dissipate the excessive energy of excitation [61].…”

Section: Responses To Eutrophic Water With Different Salinitysupporting

confidence: 92%

“…The data from literature indicated that salinity significantly caused the reduction in the chlorophyll content [58,59], other inhibitory processes are also involved including inhibition of electron flow, decreased photosystem function, diminished rubisco abundance and activity, and changes in chloroplast ultrastructure [60], which result in carbohydrate from photosynthesis is low and severe carbon-nitrogen unbalance. No significant changes in the photosynthetic pigments were observed on the third day of the experiment, but the photosynthetic pigments were enhanced at 0.5% salinity, and then decreased slightly at 1.0% salinity except carotenoids, which suggests a certain salt stimulation may promote the growth of some plant species [61].…”

Section: Responses To Eutrophic Water With Different Salinitymentioning

confidence: 99%

See 1 more Smart Citation

Effects of salinity on removal of nitrogen and phosphorus from eutrophic saline water in plantedLythrum salicariaL. microcosm systems

Zhao

Wang

et al. 2013

Desalination and Water Treatment

View full text Add to dashboard Cite

2014) Effects of salinity on removal of nitrogen and phosphorus from eutrophic saline water in planted Lythrum salicaria L. microcosm systems, Desalination and Water Treatment, 52:34-36, 6655-6663, Treatment of eutrophic saline water is problematic due to high concentrations of nitrogen and phosphorus often combined with high salinity levels. In this paper, microcosm systems planted with Lythrum salicaria L. (purple loosestrlfe) were set up to evaluate the capacity of the systems to remove excessive nutrients from fresh water (0.05% salinity), and saline water (0.5% and 1.0% salinity). The average removal efficiencies were 30.6%-45.3% for total nitrogen (TN), 31.4%-55.4% for ammonia nitrogen (NH þ 4 -N), 28.0%-45.9% for nitrate nitrogen (NO À 3 -N), and 9.1-16.2% for total phosphorus (TP) at different salinities, respectively. It was observed that the treatment performance was significantly inhibited by increasing salinity. However, increasing salinity could promote the NO À 3 -N removal in the systems. In addition, the elevated salinity of eutrophic saline water was found to induce a stress response that could be quantified by a series of metabolic assays measuring the chlorophyll (Chl), proline (Pro), and malondialdehyde (MAD). At different salinities, no significant differences were observed in pigments' content on the third day of the experiment. But on the seventh day of the experiment, 0.5 and 1.0% salinity resulted in sharp decrease in the levels of chl b, total chl, and total chl/carotenoids. Compared to 0.05% salinity, proline accumulation and MAD increased significantly with increasing salinity, but the content of MAD was still very low (<0.1 lmol g À1 FW). The results of this study indicate that the planted salt-tolerant aquatic macrophytes systems can be a low-cost ecological phytoremediation technology to treat eutrophic saline water, and the application of cellular stress assays can provide useful tools to monitor salt-induced responses in aquatic macrophytes.

show abstract

Section: Responses To Eutrophic Water With Different Salinitysupporting

confidence: 92%

Section: Responses To Eutrophic Water With Different Salinitymentioning

confidence: 99%

Effects of salinity on removal of nitrogen and phosphorus from eutrophic saline water in plantedLythrum salicariaL. microcosm systems

Zhao

Wang

et al. 2013

Desalination and Water Treatment

View full text Add to dashboard Cite

show abstract

“…Under salt condition, the activities of photosystem I (PSI) and PSII, together with the overall activity of electron transport chain, were dramatically decreased, while the production of reactive oxygen species (ROS) was greatly increased in Lemna gibba [18]. In addition to photosynthetic pigment, salt treatment significantly inhibited plant growth but greatly enhanced hydrogen peroxide (H 2 O 2 ) and malondialdehyde (MDA) contents in Spirodela polyrhiza [19,20]. Accordingly, ROS scavenging system was triggered to protect against oxidative damage, because many anti-oxidative enzymes including catalase (CAT), superoxide dismutase (SOD), ascorbate peroxidase (APX), and peroxidase (POD) were greatly induced [19,20].…”

Section: Introductionmentioning

confidence: 99%

Genome-wide discovery and functional prediction of salt-responsive lncRNAs in duckweed

Ding

et al. 2020

BMC Genomics

View full text Add to dashboard Cite

Background: Salt significantly depresses the growth and development of the greater duckweed, Spirodela polyrhiza, a model species of floating aquatic plants. Physiological responses of this plant to salt stress have been characterized, however, the roles of long noncoding RNAs (lncRNAs) remain unknown. Results: In this work, totally 2815 novel lncRNAs were discovered in S. polyrhiza by strand-specific RNA sequencing, of which 185 (6.6%) were expressed differentially under salinity condition. Co-expression analysis indicated that the transacting lncRNAs regulated their co-expressed genes functioning in amino acid metabolism, cell-and cell wallrelated metabolism, hormone metabolism, photosynthesis, RNA transcription, secondary metabolism, and transport. In total, 42 lncRNA-mRNA pairs that might participate in cis-acting regulation were found, and these adjacent genes were involved in cell wall, cell cycle, carbon metabolism, ROS regulation, hormone metabolism, and transcription factor. In addition, the lncRNAs probably functioning as miRNA targets were also investigated. Specifically, TCONS_ 00033722, TCONS_00044328, and TCONS_00059333 were targeted by a few well-studied salt-responsive miRNAs, supporting the involvement of miRNA and lncRNA interactions in the regulation of salt stress responses. Finally, a representative network of lncRNA-miRNA-mRNA was proposed and discussed to participate in duckweed salt stress via auxin signaling. Conclusions: This study is the first report on salt-responsive lncRNAs in duckweed, and the findings will provide a solid foundation for in-depth functional characterization of duckweed lncRNAs in response to salt stress.

show abstract

“…A diversity of reactions catalysed by POXs as well as a large number of their genes suggests a possible functional specialization for each isoform [60]. The earlier results of studies carried out by Reuveni and co-workers [32,61] suggested that POX activity is a biochemical marker, which may or may not be part of the resistance mechanism, but can be used to predict resistance to disease.…”

Section: Discussionmentioning

confidence: 99%

The effects of cold-hardening and Microdochium nivale infection on oxidative stress and antioxidative protection of the two contrasting genotypes of winter triticale

Gawrońska

Gołębiowska-Pikania

2016

Eur Food Res Technol

View full text Add to dashboard Cite

Oxidative stress in greater duckweed (Spirodela polyrhiza) caused by long-term NaCl exposure

Cited by 30 publications

References 69 publications

Effects of salinity on removal of nitrogen and phosphorus from eutrophic saline water in plantedLythrum salicariaL. microcosm systems

Effects of salinity on removal of nitrogen and phosphorus from eutrophic saline water in plantedLythrum salicariaL. microcosm systems

Genome-wide discovery and functional prediction of salt-responsive lncRNAs in duckweed

The effects of cold-hardening and Microdochium nivale infection on oxidative stress and antioxidative protection of the two contrasting genotypes of winter triticale

Contact Info

Product

Resources

About