Antioxidative responses of Nostoc ellipsosporum and Nostoc piscinale to salt stress

Rezayian, Maryam; Faramarzi, Mohammad Ali

doi:10.1007/s10811-018-1506-2

Cited by 11 publications

(13 citation statements)

References 67 publications

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“…Previous studies have reported, increased proline levels under salt stress conditions ( Rezayian et al., 2019 ; Shahid et al., 2020 ). In addition, Nostoc piscinale displayed a significant accumulation of proline under 200 mM NaCl conditions by 11 μg g −1 (FW) compared to 5 μg g −1 (FW) 0 mM NaCl conditions ( Rezayian et al., 2019 ). In addition, Chokshi et al.…”

Section: Resultsmentioning

confidence: 83%

“…NaCl in low concentration is beneficial for some metabolic functions and increase microalgae growth. However, high concentrations might inhibit growth and cause cell death ( Pandit et al., 2017 ; Rezayian et al., 2019 ; Qiao et al., 2021 ). Numerous studies reported that growth rate is reduced with increasing of NaCl concentration ( Ji et al., 2018a ; Singh et al., 2018 ).…”

Section: Resultsmentioning

confidence: 99%

“…The reduction of Chl a may be an oxidative stress symptom related to increased chlorophyllase activity promoting Chl a degradation ( Ji et al., 2018b , Ji et al., 2018a ). It may also be related to decrease in Rubisco activity due to the low CO 2 uptake ( Rezayian et al., 2019 ; Hounslow et al., 2021 ). It's reported that salt stress negatively affects carbon fixation and carbon concentrating mechanisms in C. reinhardtii which is required for CO 2 availability for Rubisco ( Hounslow et al., 2021 ).…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the concentration of Chl aþb in C. reinhardtii was remarkably decreased from 14 μg mL À1 at 0 mM NaCl to 9 μg mL À1 under 200 mM NaCl conditions (Hang et al, 2020). Conversely, cyanobacteria and microalgae accumulate carotenoids under unfavourable conditions as antioxidative molecules against oxidative damage and lipid peroxidation (Ji et al, 2018b;Rezayian et al, 2019). In the present study, the carotenoids in NaCl-treated was 2.60 AE 0.242 mg L À1 compared to the control with 2.40 AE 0.119 mg L À1 Rezayian et al (2019) reported that carotenoids play an important role in photosynthesis and plant development as well as stress responses.…”

Section: Resultsmentioning

confidence: 99%

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Salt induced oxidative stress alters physiological, biochemical and metabolomic responses of green microalga Chlamydomonas reinhardtii

Fal

Aasfar

Rabie

et al. 2022

Heliyon

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Salinity is one of the most significant environmental factors limiting microalgal biomass productivity. In the present study, the model microalga Chlamydomonas reinhardtii ( C. reinhardtii ) was exposed to 200 mM NaCl for eight days to explore the physiological, biochemical and metabolomic changes. C. reinhradtii exhibited a significant decrease in growth rate, and Chl a and Chl b levels. 200 mM NaCl induced ROS generation in C. reinhardtii with increase in H 2 O 2 content. This caused lipid peroxidation with increase in MDA levels. C. reinhardtii also exhibited an increase in carbohydrate and lipid accumulation under 200 mM NaCl conditions as storage molecules in cells to maintain microalgal survival. In addition, NaCl stress increased the content of carotenoids, polyphenols and osmoprotectant molecules such as proline. SOD and APX activities decreased, while ROS-scavenger enzymes (POD and CAT) decreased. Metabolomic response showed an accumulation of the major molecules implicated in membrane remodelling and stress resistance such oleic acid (40.29%), linolenic acid (19.29%), alkanes, alkenes and phytosterols. The present study indicates the physiological, biochemical and metabolomic responses of C. reinhardtii to salt stress.

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Section: Resultsmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Salt induced oxidative stress alters physiological, biochemical and metabolomic responses of green microalga Chlamydomonas reinhardtii

Fal

Aasfar

Rabie

et al. 2022

Heliyon

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“…On the other hand, proline can act as an oxidative protector molecule and contributes to the osmotic adjustment in response to salt stress (Rezayian et al. ). Therefore, the production of GABA and proline was likely part of the salt acclimation strategy.…”

Section: Discussionmentioning

confidence: 99%

The novel strain Desmonostoc salinum CCM‐UFV059 shows higher salt and desiccation resistance compared to the model strain Nostoc sp. PCC7120

Alvarenga

Lucius

Vaz

et al. 2020

Journal of Phycology

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Desmonostoc salinum CCM‐UFV059 (Desmonostoc) is a novel cyanobacterial strain of the order Nostocales isolated from a saline‐alkaline lake. The acclimation towards salt and desiccation stress of Desmonostoc was compared to the related and well‐characterized model strain Nostoc sp. PCC7120 (Nostoc). Salt–stressed cells of Desmonostoc maintained low cellular Na+ concentrations and accumulated high amounts of compatible solutes, mainly sucrose and to a lower extent trehalose. These features permitted Desmonostoc to grow and maintain photosynthesis at 2‐fold higher salinities than Nostoc. Moreover, Desmonostoc also induced sucrose over‐accumulation under desiccation, which allowed this strain to recover from this stress in contrast to Nostoc. Additional mechanisms such as the presence of highly unsaturated lipids in the membrane and an efficient ion transport system could also explain, at least partially, how Desmonostoc is able to acclimate to high salinities and to resist longer desiccation periods. Collectively, our results provide first insights into the physiological and metabolic adaptations explaining the remarkable high salt and desiccation tolerance, which qualify Desmonostoc as an attractive model for further analysis of stress acclimation among heterocystous N2–fixing cyanobacteria.

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The influence of different CO2 concentrations on the biochemical and molecular response of two isolates of Dunaliella sp. (ABRIINW-CH2 and ABRIINW-SH33)

et al. 2019

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Antioxidative responses of Nostoc ellipsosporum and Nostoc piscinale to salt stress

Cited by 11 publications

References 67 publications

Salt induced oxidative stress alters physiological, biochemical and metabolomic responses of green microalga Chlamydomonas reinhardtii

Salt induced oxidative stress alters physiological, biochemical and metabolomic responses of green microalga Chlamydomonas reinhardtii

The novel strain Desmonostoc salinum CCM‐UFV059 shows higher salt and desiccation resistance compared to the model strain Nostoc sp. PCC7120

The influence of different CO2 concentrations on the biochemical and molecular response of two isolates of Dunaliella sp. (ABRIINW-CH2 and ABRIINW-SH33)

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