Effect of photosynthetically active radiation, salinization, and type of nitrogen nutrition on growth of Salicornia europaea plants

Ushakova, Sofya; Kovaleva, N. P.; Тихомирова, Н. А.; Gribovskaya, I. V.; Колмакова, А. А.

doi:10.1134/s1021443706060094

Cited by 23 publications

(22 citation statements)

References 11 publications

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“…Thus, the changes in plant investment towards reproduction over the studied salinity range could be largely ascribed for by the response in terms of growth and photosynthetic performance. Consistent with our findings, the positive effect of moderate salinities on the reproductive capacity has been reported for halophytes such as Salvadora persica (Rao et al 2004), Plantago crassifolia (Boscaiu et al 2005) and Salicornia europaea (Ushakova et al 2006). Despite the plant was efficient in protecting seeds from the harmful accumulation of salt, high salinities were detrimental for plant fertility (Table 3).…”

Section: Discussionsupporting

confidence: 92%

Relationship between the photosynthetic activity and the performance of Cakile maritima after long‐term salt treatment

Debez

Koyro

Grignon

et al. 2008

Physiologia Plantarum

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Cakile maritima is a halophyte with potential for ecological, economical and medicinal uses. We address here the impact of salinity on its growth, photosynthesis and seed quality. Whole plant growth rate and shoot development were stimulated at moderate salinity (100-200 mM NaCl) and inhibited at higher salt concentrations. Although diminished in the presence of salt, potassium and calcium uptake per unit of root biomass was maintained at relatively high value, while nutrient-use efficiency (NUE) was improved in salt-treated plants. Chl and carotenoid concentrations decreased at extreme salinities, but anthocyanin concentration continuously grew with salinity. Net photosynthetic rate (A), stomatal conductance, maximum quantum efficiency of PSII and quantum yield were stimulated in the 100-200 mM NaCl range. Higher salinity adversely affected gas exchange and changed PSII functional characteristics, resulting in a reduction of A per leaf area unit. This phenomenon was associated with increased non-photochemical quenching. Harvest index, silique number and seeds per fruit valve were maximal at 100 mM NaCl. Despite the decreasing salt accumulation gradient from the vegetative to the reproductive organs, high salinities were detrimental for the seed viability and increased the proportion of empty siliques. Overall, the salt-induced changes in the plant photosynthetic activity resulted into analogous responses at the vegetative and reproductive stages. The enhancement of NUE, the absence of pigment degradation, the reduction of water loss and the concomitant PSII protection from photodamage through thermal dissipation of excess excitation significantly accounted for Cakile survival capacity at high salinity.

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Section: Discussionsupporting

confidence: 92%

Relationship between the photosynthetic activity and the performance of Cakile maritima after long‐term salt treatment

Debez

Koyro

Grignon

et al. 2008

Physiologia Plantarum

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“…There are many reports showing the high salt resistance in S. europaea. However, the mechanism of salt resistance of Salicornia plants is still not well understood (Momonoki et al, 1996;Moghaieb et al, 2004;Ushakova et al, 2006). In this study, A. vera and S. europaea were studied for their responses to high-salt treatments.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the response of ion distribution in the tissues and cells of the succulent plants Aloe vera and Salicornia europaea to saline stress

Zheng

Liu

et al. 2009

Z. Pflanzenernähr. Bodenk.

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There exists a great variability among plant species regarding their sensitivity and resistance to high salinity in soil, and most often this variability is related with the ability of a particular plant species to regulate ion homeostasis and transport. In this study, we have investigated the effects of NaCl on growth rate, water status, and ion distribution in different cells and tissues of two succulent plants, Aloe vera and Salicornia europaea. Our results showed that the growth of A. vera seedlings was significantly decreased in response to salinity. However, the growth of S. europaea seedlings was greatly stimulated by high concentrations of NaCl. Under saline conditions, S. europaea seedlings maintained K + and Ca 2+ uptake in roots and showed a higher root-toshoot flux of Na + and Cl -as compared to A. vera. Despite great accumulation of Na + and Cl -in photosynthetically active shoot cells in S. europaea, its growth was enhanced, indicating S. europaea is capable of compartmentalizing salt ions in the vacuoles of shoot cells. Aloe vera seedlings, however, showed a low transport rate of Na + and Cl -to leaves and suppressed uptake of K + and Ca 2+ in roots during NaCl treatment. Our results also implicate that A. vera may be able to accumulate Na + and Cl -in the metabolically inactive aqueous cells in leaves and, as a result, the plant can survive and can maintain growth under saline conditions.

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“…It was therefore decided to check the feasibility of desalinizing irrigation water with the help of plant halophytes. Salicornia europaea will normally grow under NaCl concentration up to 2% [14,15] on aqueous media containing basic biogen content in concentrations close to their content in human urine [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Some Methods for Human Liquid and Solid Waste Utilization in Bioregenerative Life-Support Systems

Ushakova

Zolotukhin

Tikhomirov

et al. 2008

Appl Biochem Biotechnol

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Bioregenerative life-support systems (BLSS) are studied for developing the technology for a future biological life-support system for long-term manned space missions. Ways to utilize human liquid and solid wastes to increase the closure degree of BLSS were investigated. First, urine and faeces underwent oxidation by Kudenko's physicochemical method. The products were then used for root nutrition of wheat grown by the soil-like substrate culture method. Two means of eliminating sodium chloride, introduced into the irrigation solution together with the products of urine oxidation, were investigated. The first was based on routine electrodialysis of irrigation water at the end of wheat vegetation. Dialysis eliminated about 50% of Na from the solution. This desalinization was performed for nine vegetations. The second method was new: after wheat cultivation, the irrigation solution and the solution obtained by washing the substrate containing mineral elements not absorbed by the plants were used to grow salt-tolerant Salicornia europaea L. plants (saltwort). The above-ground biomass of this plant can be used as a food, and roots can be added to the soil-like substrate. Four consecutive wheat and Salicornia vegetations were cultivated. As a result of this wheat and Salicornia cultivation process, the soil-like substrate salinization by NaCl were considerably decreased.

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Effect of photosynthetically active radiation, salinization, and type of nitrogen nutrition on growth of Salicornia europaea plants

Cited by 23 publications

References 11 publications

Relationship between the photosynthetic activity and the performance of Cakile maritima after long‐term salt treatment

Relationship between the photosynthetic activity and the performance of Cakile maritima after long‐term salt treatment

Comparison of the response of ion distribution in the tissues and cells of the succulent plants Aloe vera and Salicornia europaea to saline stress

Some Methods for Human Liquid and Solid Waste Utilization in Bioregenerative Life-Support Systems

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