Effect of NaCl and KCl salts on the growth and solute accumulation of the halophyte Atriplex nummularia

Ramos, José; López, María Dolores Ruiz; Benlloch, M.

doi:10.1023/b:plso.0000020953.50331.a5

Cited by 70 publications

(41 citation statements)

References 19 publications

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“…Only in A. nummularia, the K + concentration was reduced by the increase salinity level. Similar results were reported by Ramos et al [37] and Silveira et al [22] in this species. Moreover, the same pattern was found in A. halimus [13], A. prostata [12,20], A. patula [17] and A. griffithii [11].…”

Section: Discussionsupporting

confidence: 92%

“…[37], stems of A. prostata [12,20], stems of A. patula [17], A. canescens [21] and others Chenopodiaceae [24,26,27,38]. It was reported that the increased levels of Na + and concomitant decreasing levels of K + in shoots respond to the competition of Na + with K + for the same binding sites, and therefore interfere with the transport of potassium in the cell [26].…”

Section: Discussionmentioning

confidence: 99%

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Ion Accumulation, Water Relations and Osmotic Adjustment in Atriplex argentina, A. crenatifolia, A. lampa and A. nummularia under Saline Conditions

Barcena¹,

Ruiz²,

Parera³

2016

JAST-A

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Salinity is a major stress that adversely affects growth and productivity in plants. There are species that tolerate this stress within the genus Atriplex. Four species, A. lampa, A. crenatifolia, A. nummularia and A. argentina were compared for their ion accumulation and water relations under saline conditions. A greenhouse study was conducted by irrigating the four species with NaCl solutions at concentrations 0%, 1%, 2% and 4% starting when plants were six months old. Plants were harvested 45 d after starting the salinity treatments and analyzed for their ion contents. In the four Atriplex species, Na + and Cl -contents in plants increased, while Ca 2+ and Mg 2+ decreased with the increase of salinity in the irrigation solution. The results suggested that A. argentina and A. nummularia were able to maintain a higher leaf relative water content (RWC) at low leaf water potential, which was associated with a greater capacity of osmotic adjustment. A. lampa showed lower ion accumulation and minor osmotic adjustment than the other species. It can be concluded that the accumulation of ions favors the lower osmotic potential and contributes to osmotic adjustment in these halophytes.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Ion Accumulation, Water Relations and Osmotic Adjustment in Atriplex argentina, A. crenatifolia, A. lampa and A. nummularia under Saline Conditions

Barcena¹,

Ruiz²,

Parera³

2016

JAST-A

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“…For halophytes, selective mechanism for the uptake of K + over Na + could be a significant mediator of ion homeostasis under high salinity conditions [24,26]. In non-halophytes, the capability of selective translation between K + and Na + is an important factor affecting salt tolerance in plants [27,28]. Our study suggests that A. adsurgens might not be an "excluder" of Na + and Cl + .…”

Section: Inorganic and Organic Solutesmentioning

confidence: 81%

Effects of NaCl on Growth, Dry Matter and Ion Accumulation in Forage Crop Astragalus Adsurgens Seedlings

Li¹

2017

dteees

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Abstract. Astragalus adsurgens pall. is a pasture perennial legume widely planted in northern China. A greenhouse experiment was carried out to investigate the effects of salinity on growth, nutrient, organic solute accumulation, pigments and chlorophyll a fluorescence of A. adsurgens seedlings. Seedlings cultured for 20 d under NaCl solutions were harvested and growth, dry matter and ion accumulation were analyzed. The growth parameters except root length were reduced after NaCl treatment. Nitrogen, phosphorus and potassium contents decreased under NaCl salinity stress. Shoot water content decreased with increasing NaCl concentration whereas Na + , Cl -, proline and soluble sugar in shoot increased with increasing NaCl concentration. Moderate salinity (0.3 M NaCl or below) did not inhibit chlorophyll synthesis or photosystem II (PSII) function by inactivation of PSII reaction centers. High salinity (0.5 M NaCl) markedly disturbed chlorophyll synthesis and inhibits PSII activity. A. adsurgens is a salinity-sensitive plant species.

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“…Shoot P and K showed similar behaviour: both were increased only by compost for soils LB and SG. Our own unpublished results for A. halimus and those of Ramos et al (2004) for A. nummularia indicate that a leaf K concentration of 400-500 μmol g −1 is enough for maximal growth, while generally a leaf P concentration of >70 μmol g −1 is needed (Marschner 1995). Thus, the shoot levels of P and K in the nonamended soils LB and SG represent deficiency and stimulation of A. halimus growth in these soils by compost was probably due directly to improved nutritional status.…”

Section: Effects Of Soil Amendments On Mineral Nutrient Availability mentioning

confidence: 99%

The Effects of Soil Amendments on the Growth of Atriplex halimus and Bituminaria bituminosa in Heavy Metal-Contaminated Soils

Martínez-Fernández

Walker

2011

Water Air Soil Pollut

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In Southern Spain, as in other semi-arid zones, plants used for the phytoremediation of heavy metal-contaminated sites must be able to withstand not only the challenging soil conditions but also seasonal drought and high temperatures. A pot assay was carried out to determine the ability of soil amendments to promote the survival and growth of the seedlings of two native species, Atriplex halimus L. (Amaranthaceae) and Bituminaria bituminosa (L.) C.H. Stirton (Fabaceae), in two heavy metalcontaminated soils, one of which also had a high level of arsenic (As). Restriction of A. halimus shoot growth in the non-amended soils appeared to be due to deficiency of nitrogen, phosphorus (P) and potassium (K) and in the more highly contaminated soil to lead (Pb) toxicity. Shoot biomass of A. halimus in the more highly contaminated soil was increased significantly by compost addition, due to increased uptake of K and P and decreased tissue Pb. The lack of effect of compost on B. bituminosa growth in this soil, despite a large increase in tissue K, may have been due to elevated tissue levels of As and Pb and the high soil salinity. The combination of A. halimus and compost addition seems appropriate for the phytostabilisation of contaminated semi-arid sites.

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Effect of NaCl and KCl salts on the growth and solute accumulation of the halophyte Atriplex nummularia

Cited by 70 publications

References 19 publications

Ion Accumulation, Water Relations and Osmotic Adjustment in Atriplex argentina, A. crenatifolia, A. lampa and A. nummularia under Saline Conditions

Ion Accumulation, Water Relations and Osmotic Adjustment in Atriplex argentina, A. crenatifolia, A. lampa and A. nummularia under Saline Conditions

Effects of NaCl on Growth, Dry Matter and Ion Accumulation in Forage Crop Astragalus Adsurgens Seedlings

The Effects of Soil Amendments on the Growth of Atriplex halimus and Bituminaria bituminosa in Heavy Metal-Contaminated Soils

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