Photobiological and biochemical responses of mangrove-associated red macroalgae Bostrychia calliptera and Bostrychia montagnei to short-term salinity stress related to climate change

Borburema, Henrique D. S.; Graiff, Angelika; Karsten, Ulf; Marinho‐Soriano, Eliane

doi:10.1007/s10750-022-05006-4

Cited by 5 publications

(2 citation statements)

References 65 publications

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“…Such a decrease in the SC under the elevated pCO 2 was also reported in the adult S. japonica when they were exposed to a nutrient-enriched condition [ 9 ]. Generally, to maintain the turgor pressure under a hyposaline condition, the cells are prone to decrease the low molecular weight carbohydrate (LMWC) content to avoid water influx [ 26 , 37 , 63 ]. In contrast, in the present study, the decreased salinity favored the SC accumulation and even mitigated the negative effect of the elevated pCO 2 .…”

Section: Discussionmentioning

confidence: 99%

Decreased Salinity Offsets the Stimulation of Elevated pCO2 on Photosynthesis and Synergistically Inhibits the Growth of Juvenile Sporophyte of Saccharina japonica (Laminariaceae, Phaeophyta)

Zhang

Shi

et al. 2022

Plants

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The combined effect of elevated pCO2 (Partial Pressure of Carbon Dioxide) and decreased salinity, which is mainly caused by freshwater input, on the growth and physiological traits of algae has been poorly assessed. In order to investigate their individual and interactive effects on the development of commercially farmed algae, the juvenile sporophytes of Saccharina japonica were cultivated under different levels of salinity (30, 25 and 20 psu) and pCO2 (400 and 1000 µatm). Individually, decreased salinity significantly reduced the growth rate and pigments of S. japonica, indicating that the alga was low-salinity stressed. The maximum quantum yield, Fv/Fm, declined at low salinities independent of pCO2, suggesting that the hyposalinity showed the main effect. Unexpectedly, the higher pCO2 enhanced the maximum relative electron transport rate (rETRmax) but decreased the growth rate, pigments and soluble carbohydrates contents. This implies a decoupling between the photosynthesis and growth of this alga, which may be linked to an energetic reallocation among the different metabolic processes. Interactively and previously untested, the decreased salinity offset the improvement of rETRmax and aggravated the declines of growth rate and pigment content caused by the elevated pCO2. These behaviors could be associated with the additionally decreased pH that was induced by the low salinity. Our data, therefore, unveils that the decreased salinity may increase the risks of future CO2-induced ocean acidification on the production of S. japonica.

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Section: Discussionmentioning

confidence: 99%

Decreased Salinity Offsets the Stimulation of Elevated pCO2 on Photosynthesis and Synergistically Inhibits the Growth of Juvenile Sporophyte of Saccharina japonica (Laminariaceae, Phaeophyta)

Zhang

Shi

et al. 2022

Plants

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“…There are also many indirect effects due to their impact on regulatory interactions (Özerol et al, 2020). For example, spores of plant pathogens become more infective under water or salt stress (Borburema et al, 2022). Additionally, stress on drought and cold mitigation may influence the development of disease resistance (Hernández, 2019).…”

Section: Climate Change and Constraints To Cereals And Food Securitymentioning

confidence: 99%

Climate Change and Its Impact on Global Cereal Production: Review

MMT Marikar

2023

Ecm. Cli. Chg.

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Climate change badly effect the farming community which will lead to breakdown of the backbone of sustainable agriculture. Furthermore, the risk will play a major role when it comes to agricultural production in most countries and leads to lack specific strategies to overcome such situation. Furthermore, in most regions of the world there is a lack of research to understand the factors shaping farmer adaptation to climate change and the institutional links between farmer resilience. This study looked at climate change and its impact on global grain production. The results show that most farmers implementing climate change adaptation strategies are strongly linked with their inherited knowledge. Mostly it was affected to peasant farmers with low income. How will climate change impact the world’s food supply and how will its impacts be distributed? Increased or decreased food security risks? Findings suggest that agricultural advisor services are keeping them in the industry, introducing new forestry programs to capture carbon and ultimately reducing urbanization processes suggest that it is necessary to increase grain production.

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Effects of temperature and salinity on indoor preservation of in vitro holdfast of Sargassum fusiforme

Xu,

Cao,

Tian

et al. 2024

Aquacult Int

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Photobiological and biochemical responses of mangrove-associated red macroalgae Bostrychia calliptera and Bostrychia montagnei to short-term salinity stress related to climate change

Cited by 5 publications

References 65 publications

Decreased Salinity Offsets the Stimulation of Elevated pCO2 on Photosynthesis and Synergistically Inhibits the Growth of Juvenile Sporophyte of Saccharina japonica (Laminariaceae, Phaeophyta)

Decreased Salinity Offsets the Stimulation of Elevated pCO2 on Photosynthesis and Synergistically Inhibits the Growth of Juvenile Sporophyte of Saccharina japonica (Laminariaceae, Phaeophyta)

Climate Change and Its Impact on Global Cereal Production: Review

Effects of temperature and salinity on indoor preservation of in vitro holdfast of Sargassum fusiforme

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