Seed germination responses to salinity and temperature in <i>Limonium supinum</i> (Plumbaginaceae), an endemic halophyte from Iberian Peninsula

Melendo, Manuel Jiménez; Giménez, Esther

doi:10.1080/11263504.2018.1473303

Cited by 19 publications

(13 citation statements)

References 33 publications

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“…Four ('Fatcat', 'Starlett', 'Essential' and 'Armani') of the nine varieties included in the study reached the same final germination irrespective of NaCl concentration in the interval 0-15 ds m −1 , two varieties ('Asterix' and 'Meandre') had lower germination under the highest salinity level and in the remaining three varieties ('Rhizing star', 'Eyecandy' and 'Thomahawk'), final germination decreased gradually with increasing salinity (Figure 1). Our results showed that salinity stress delayed germination, which is in agreement with studies by Rubio-Casal et al (2003), Ouji et al (2015), Foti et al (2018) and, Melendo and Giménez (2018). When final germination was recorded (day-14), some seed lots tested under high salinity levels were still in the process of germination.…”

Section: Discussionsupporting

confidence: 93%

Seed germination and seedling growth parameters in nine tall fescue varieties under salinity stress

Shiade

Boelt

2020

Acta Agriculturae Scandinavica, Section B — Soil & Plant Sc

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To assess seed germination parameters and identifying tolerant varieties, seeds of nine tall fescue varieties (Festuca arundinacea Schreb.) were germinated under various salinity levels for 14 days. Tall fescue is considered 'moderately tolerant' to salinity stress, but our study revealed a remarkable diversity among the tested varieties. Armani, Essential, Fatcat, and Starlett were found to reach the same final germination (>90%), irrespective of NaCl concentration up to 15 ds m −1 NaCl; Asterix and Meandre expressed lower germination under the highest salinity level (>75%); and final germination decreased in Eyecandy, Rhizing star, and Thomahawk gradually with increasing salinity (>55%). The main effect of increasing salinity was a delay in germination, and our study suggests that the recording of final germination, which is performed on day-14 in a standard germination test, should be postponed in order to understand the full effect of salinity on germination potential. Nonetheless, a delay in germination will affect turf quality negatively and hence there is good reason to test for salinity tolerance when choosing a variety for sowing on saline soil. Further, our findings indicate a future perspective for breeding for improved salinity tolerance in tall fescue by the identification of salinity-tolerant breeding lines or varieties.

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Section: Discussionsupporting

confidence: 93%

Seed germination and seedling growth parameters in nine tall fescue varieties under salinity stress

Shiade

Boelt

2020

Acta Agriculturae Scandinavica, Section B — Soil & Plant Sc

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“…In a previous work, the germination rate (84%) of L. tabernense treated with freshwater and temperatures above 30°C (Delgado Fernández et al, 2016), was close to that obtained by L. algarvense. Also, L. supinum seeds also had high germination rates (98%) when treated with freshwater in all temperature conditions (20/10-35/25°C) (Melendo and Giménez, 2019). Likewise, L. cossonianum exhibited 90% of germination rate with freshwater soaking (Giménez et al, 2013).…”

Section: Germination and Plant Growth Performancementioning

confidence: 85%

“…Halophyte seeds' germination is affected by, for example, salinity and temperature (Khan and Gul, 2006), and for several Limonium species, such as L. cossonianum Kuntze, L. tabernense Erben and L. supinum (Girard) Pignatti, highest germinations rates are usually obtained with freshwater treatments (Giménez et al, 2013;Delgado Fernández et al, 2016;Melendo and Giménez, 2019). Therefore, in this work, sea lavender seeds were germinated using freshwater irrigation only.…”

Section: Germination and Plant Growth Performancementioning

confidence: 99%

Growth performance, in vitro antioxidant properties and chemical composition of the halophyte Limonium algarvense Erben are strongly influenced by the irrigation salinity

Rodrigues

Monteiro

Castañeda-Loaiza

et al. 2020

Industrial Crops and Products

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Limonium algarvense Erben (sea lavender) is a halophyte species with potential to provide natural ingredients with in vitro antioxidant, anti-inflammatory, neuroprotective and antidiabetic properties. This study reports for the first time the 1) cultivation of sea lavender in greenhouse conditions under irrigation with freshwater (approx. 0 mM NaCl) and saline aquaculture wastewater (300 and 600 mM NaCl), and 2) the influence of the irrigation salinity on the plant performance (e.g. growth, number of produced leaves and flowers), in vitro antioxidant properties [radical scavenging activity (DPPH and ABTS), ferric reducing antioxidant power (FRAP), metal chelating properties on copper (CCA) and iron (ICA)], toxicity (in vitro on three mammalian cell lines) and chemical composition (determined by LC-ESI-HRMS/MS). The freshwater-irrigated plants had better growth performance than those irrigated with saltwater. Extracts from wild plants, had the highest antioxidant activity, but those from cultivated ones kept high in vitro antioxidant properties and interesting chemical profile. The flowers' extracts of plants irrigated with 300 mM NaCl had the highest antioxidant activities against DPPH, whereas those from freshwater-irrigated plants were more active on ABTS, CCA and FRAP. Most of the extracts showed nil toxicity. The flowers' extracts displayed the highest diversity of compounds, mainly quercetin, apigenin, luteolin, naringenin and their glycoside derivatives. Moreover, their abundance varied with the irrigation salinity. These data indicate that sea lavender plants can be successfully cultivated in greenhouse conditions under fresh-and saltwater irrigation, maintaining interesting biological and chemical properties. 1. Introduction Plants are used as a source of health improvement commodities since ancient times, generally as herbal infusions, juices, elixirs, and extracts (Miroddi et al., 2013). Nowadays, botanical nutraceuticals (e.g. raspberry ketones, green tea supplements, echinacea, Garcinia cambogia, Ginkgo biloba) are also used with the same purposes: to improve health, delay the aging process, prevent chronic diseases, increase life expectancy, and support the structure or function of the body (Nicoletti, 2012; Nasri et al., 2014). These products are sold in different forms, like fresh or dried products, liquid or solid extracts, tablets, capsules, powders, or tea bags (Grand View Research, 2017). Products containing natural ingredients, such as nutraceuticals, have generally easier access to consumers, lower prices and are more effective when compared to prescription drugs, which combined with the growing consumer awareness of the importance of a healthier lifestyle increased the popularity of these products and the demand for natural-based formulations (Nasri et al., 2014; Grand View Research, 2017). This boosted the need to identify and develop innovative and bioactive nutraceutical ingredients, sustaining the projections for the global nutraceuticals market of 578 billion dollars by 2025 (Grand View...

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“…That may be related to the result of the combined action of osmotic stress and ion toxicity (Song et al 2005), such as the penetration effect of Na + (Bajji et al 2002). This behavior could also be because salinity lowers the osmotic potential of the soil and slows down the hydration of the propagules (Melendo and Gim enez 2018). Compared with the non-saline treatments, the sprouting percentage decreased by 28.6% at 100 mmol/L salinity at 20/10°C, whereas this value dropped to 17.6% at 35/25°C.…”

Section: Responses Of Tuber Sprouting To Salinity and Temperaturementioning

confidence: 99%

Effects of salinity and temperature on tuber sprouting and growth of Schoenoplectus nipponicus

et al. 2021

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In a scenario of climate change and intensive land-use change, the issue of salt marsh degradation caused by global warming and soil salinization is becoming more serious. A climate chamber experiment was conducted to examine the responses of tuber sprouting and seedling growth of Schoenoplectus nipponicus to variations in the temperature regimes (20/10, 25/15, 30/20 and 35/25°C; 12-h light/dark 12-h photoperiod) and different salt concentrations (0, 50, 75, and 100 mmol/L salinity). Results showed that the final sprouting percentage decreased with the increase in salinity and increased with the rising temperature. Salinity lower than 50 mmol/L was the most favorable for tuber sprouting. Under high salinity (75 and 100 mmol/L salinity), the inhibition of tuber sprouting at 20/10°C was greater than other temperature regimes. Along the temperature gradients, both plant height and leaf N content increased, and root length decreased under non-saline-alkali conditions, while plant height, leaf N content, and root length declined significantly under salt stress (50, 75, and 100 mmol/L salinity). With the increase in temperature, the production of tubers under the control treatments was enhanced significantly, but that under salt stress declined significantly. Under 0 mmol/L salinity, the accumulation of biomass in various organs increased with rising temperature. Biomass accumulation increased first and then declined for plants grown under salt stress, with a peak value of 25/15°C. Root: shoot ratio was reduced significantly under the combination of high salt stress (75 and 100 mmol/L salinity) and high temperatures (30/20°C and 35/25°C). Our study will contribute to a better understanding of the influence of climate warming and increasing serious human disturbances on this important wetland species.

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Seed germination responses to salinity and temperature in Limonium supinum (Plumbaginaceae), an endemic halophyte from Iberian Peninsula

Cited by 19 publications

References 33 publications

Seed germination and seedling growth parameters in nine tall fescue varieties under salinity stress

Seed germination and seedling growth parameters in nine tall fescue varieties under salinity stress

Growth performance, in vitro antioxidant properties and chemical composition of the halophyte Limonium algarvense Erben are strongly influenced by the irrigation salinity

Effects of salinity and temperature on tuber sprouting and growth of Schoenoplectus nipponicus

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