Identification of the abiotic stress-related transcription in little Neptune grass Cymodocea nodosa with RNA-seq

Malandrakis, Emmanouil E.; Dadali, Olga; Kavouras, Menelaos; Danis, Theodoros; Panagiotaki, Panagiota; Miliou, Helen; Tsioli, Soultana; Orfanidis, Sotiris; Küpper, Frithjof C.; Exadactylos, Athanasios

doi:10.1016/j.margen.2017.03.005

Cited by 17 publications

(12 citation statements)

References 65 publications

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“…Temperature and salinity are considered key stressors for seagrasses. This is consistent with recent studies highlighting the multiple effects of salinity and temperature stress on the Mediterranean pioneering seagrass Cymodocea nodosa [54,55] -which is relevant in the context of brine discharge [56]. Unlike P. oceanica, Cymodocea species tend to be euryhaline [57].…”

Section: Marine Environmental Impact Of Desalination Plantssupporting

confidence: 91%

Aspects of environmental impacts of seawater desalination: Cyprus as a case study

Xevgenos¹,

Marcou

Louca

et al. 2021

Desalination and Water Treatment

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Cyprus relies on seawater desalination for a large part of its drinking water supply, with reverse osmosis providing more than 95% of the total desalination capacity in the country. Nevertheless, the environmental impacts of desalination for the Cypriot environment remain poorly understood. Using a combination of mining existing governmental and corporate survey data and reports, this study explores the scale of desalination in Cyprus, the impacts on the coastal marine environment and its overall carbon footprint. Surveys of Posidonia oceanica seagrass meadows show strongly reduced density of shoots and leaf surface area, respectively. Analysis of the available data relating to the overall production of desalinated water and energy consumption reveals that 68.7 million m 3 of desalinated water were produced in Cyprus in 2017, resulting in the release of 160 ktons of CO 2 equivalent, representing around 2% of the total carbon emissions in Cyprus. The results are directly applicable for understanding the impacts of brine discharge on seagrass meadows, one of the most common types of Mediterranean seabed ecosystems and useful for providing guidance to decision makers as they are striving to achieve a zero-carbon economy. strategies for achieving greater sustainability in terms of reduced CO 2 emissions and less brine discharge are discussed.

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Section: Marine Environmental Impact Of Desalination Plantssupporting

confidence: 91%

Aspects of environmental impacts of seawater desalination: Cyprus as a case study

Xevgenos¹,

Marcou

Louca

et al. 2021

Desalination and Water Treatment

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“…It is the most common species in shallow protected to semiexposed sub-tidal environments (Orlando-Bonaca et al, 2016). C. nodosa is regarded as the most adaptable Mediterranean seagrass (Boudouresque et al, 2009), being more tolerant of nutrient enrichment (Delgado et al, 1997), heat fluctuations (Malandrakis et al, 2017b;Tutar et al, 2017), salinity stress (Piro et al, 2015), and general environmental stress (Garrido et al, 2013). C. nodosa is a suitable bioindicator species to assess anthropogenic stress in the marine environment as tissue-based metrics such as nitrogen content in the leaves can be used to distinguish meadows under stress (Papathanasiou et al, 2016).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Metabolomics and traditional indicators unveil stress of a seagrass (Cymodocea nodosa) meadow at intermediate distance from a fish farm

Kock

Hasler-Sheetal

Holmer

et al. 2020

Ecological Indicators

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Seasonal variation of structural, physiological and growth indicators and the metabolome of the seagrass Cymodocea nodosa, as well as biogeochemical conditions of underlying sediment were studied in two meadows growing at increasing distance downstream from a fish farm in the Aegean Sea in order to assess seagrass performance under stress. Horizontal rhizome production decreased significantly with proximity to the fish farm (0.67 and 1.57 g DW m-2 d-ACCEPTED MANUSCRIPT 1 close and far from the fish-farm, respectively). This coincided with observed effects on ecophyiological indicators, such as rhizome nitrogen, leaf carbon and leaf δ 13 C, which were elevated with proximity to the fish-farm. Seasonality was shown by some indicators being elevated in either in the warm (C of all tissues and leaf δ 34 S) or the cold period (N of all tissues). Growth promoting metabolites (sucrose, fructose, myo-inositol, heptacosane, tetracosane, stigmasterol, catechin and alpha-tocopherol) were lower close to the zone, whereas metabolites involved with stress-response (alanine, serine, proline, putrescine, ornithine, 3,4dihydroxybenzoic acid and cinnamic acid) were higher. We found that growth-promoting metabolites were positively correlated with horizontal rhizome production, whereas the metabolites related to stress were negatively correlated. Metabolomic fingerprinting of seagrass provides opportunities for early detection of environmental degradation in marine ecological studies.

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“…Transcriptomics has been widely applied to study several factors affecting the seagrass distribution, which involves phylogeographic differentiation 37 , tissue specific transcriptomics to address reproductive biology 38 and to understand abiotic response to environmental conditions 39 . Table 1 and Fig.…”

Section: Resultsmentioning

confidence: 99%

SeagrassDB: An open-source transcriptomics landscape for phylogenetically profiled seagrasses and aquatic plants

Sablok

Hayward

Davey

et al. 2018

Sci Rep

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Seagrasses and aquatic plants are important clades of higher plants, significant for carbon sequestration and marine ecological restoration. They are valuable in the sense that they allow us to understand how plants have developed traits to adapt to high salinity and photosynthetically challenged environments. Here, we present a large-scale phylogenetically profiled transcriptomics repository covering seagrasses and aquatic plants. SeagrassDB encompasses a total of 1,052,262 unigenes with a minimum and maximum contig length of 8,831 bp and 16,705 bp respectively. SeagrassDB provides access to 34,455 transcription factors, 470,568 PFAM domains, 382,528 prosite models and 482,121 InterPro domains across 9 species. SeagrassDB allows for the comparative gene mining using BLAST-based approaches and subsequent unigenes sequence retrieval with associated features such as expression (FPKM values), gene ontologies, functional assignments, family level classification, Interpro domains, KEGG orthology (KO), transcription factors and prosite information. SeagrassDB is available to the scientific community for exploring the functional genic landscape of seagrass and aquatic plants at: http://115.146.91.129/index.php.

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Identification of the abiotic stress-related transcription in little Neptune grass Cymodocea nodosa with RNA-seq

Cited by 17 publications

References 65 publications

Aspects of environmental impacts of seawater desalination: Cyprus as a case study

Aspects of environmental impacts of seawater desalination: Cyprus as a case study

Metabolomics and traditional indicators unveil stress of a seagrass (Cymodocea nodosa) meadow at intermediate distance from a fish farm

SeagrassDB: An open-source transcriptomics landscape for phylogenetically profiled seagrasses and aquatic plants

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