Sodium transport in basil

Attia, Houneïda; Karray, Najoua; Ellili, Ahlem; Msilini, Najoua; Lachâal, Mokhtar

doi:10.1007/s11738-009-0324-1

Cited by 20 publications

(17 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…from the leaves. Similar results were obtained by Attia et al (2009) and according to these authors O. basilicum may operate an efficient mechanism of Na ? retranslocation from the shoots to the roots coupled with a desalinization mechanism of the xylem sap along the stem.…”

Section: Naclsupporting

confidence: 89%

Effects of NaCl or Na2SO4 salinity on plant growth, ion content and photosynthetic activity in Ocimum basilicum L.

et al. 2011

Self Cite

View full text Add to dashboard Cite

Basil (Ocimum basilicum L., cultivar Genovese) plants were grown in Hoagland solution with or without 50 mM NaCl or 25 mM Na 2 SO 4 . After 15 days of treatment, Na 2 SO 4 slowed growth of plants as indicated by root, stem and leaf dry weight, root length, shoot height and leaf area, and the effects were major of those induced by NaCl. Photosynthetic response was decreased more by chloride salinity than by sulphate. No effects in both treatments on leaf chlorophyll content, maximal efficiency of PSII photochemistry (F v /F m ) and electron transport rate (ETR) were recorded. Therefore, an excess of energy following the limitation to CO 2 photoassimilation and a down regulation of PSII photochemistry was monitored under NaCl, which displays mechanisms that play a role in avoiding PSII photodamage able to dissipate this excess energy. Ionic composition (Na ? , K ? , Ca 2? , and Mg 2? ) was affected to the same extent under both types of salinity, thus together with an increase in leaves Cl -, and roots SO 4 2-in NaCl and Na 2 SO 4 -treated plants, respectively, may have resulted in the observed growth retardation (for Na 2 SO 4 treatment) and photosynthesis activity inhibition (for NaCl treatment), suggesting that those effects seem to have been due to the anionic component of the salts.

show abstract

Section: Naclsupporting

confidence: 89%

Effects of NaCl or Na2SO4 salinity on plant growth, ion content and photosynthetic activity in Ocimum basilicum L.

et al. 2011

Self Cite

View full text Add to dashboard Cite

show abstract

“…accumulation in stem tissues remained relatively low. In a previous work (Attia et al 2009a), we showed that a fraction of Na ? transported by the xylem sap was redirected towards the roots, revealing a desalinization mechanism of the xylem sap along the stem, which offered a supplementary protection against excessive accumulation in aerial organs.…”

Section: Discussionmentioning

confidence: 83%

Analysis of salinity effects on basil leaf surface area, photosynthetic activity, and growth

et al. 2010

Self Cite

View full text Add to dashboard Cite

Basil (Ocimum basilicum L.) seedlings were cultured on liquid medium in controlled conditions. Two varieties differing in leaf size were compared. When plants were 30 days old, the medium was supplemented with 50 mM NaCl. After 15 days of treatment, root, stem and leaf biomass, leaf number, and leaf surface area were measured. Ion accumulation was determined in roots, stems, and leaves. Photosynthetic parameters (CO 2 fixation rate, internal CO 2 concentration, stomatal conductance) as well as transpiration rate were determined on separate leaves. Electrolyte leakage and malondialdehyde content were used to estimate damage to membranes and lipid peroxidation, respectively. Several antioxidant enzymatic activities were used as proxies of oxidative stress. High Na ? concentration was reached in leaf tissues. Salt restricted whole plant biomass deposition rate by diminishing leaf number and leaf expansion, as well as photosynthetic activity were estimated from whole plant biomass production per unit leaf surface area. Diminished stomatal conductance restricted CO 2 fixation rate, and decrease in chlorophyll content presumably limited photosynthetic activity. Lipid peroxidation revealed damages to membranes. The magnitude of these responses differed between the two varieties, indicating that an intraspecific variability in salt response exists in basil.

show abstract

“…Similar results were obtained by Attia et al . () according to whom O . basilicum may operate an efficient mechanism of Na + retranslocation from the shoots to the roots coupled with a desalinization mechanism of the xylem sap along the stem.…”

Section: Discussionmentioning

confidence: 99%

“…Basil ( Ocimum basilicum L., Lamiaceae ) is an important commercial and medicinal plant widespread in Asia, Africa, South America and in the Mediterranean region where soils and ground water are dominated by chloride and sulphate salts. This species is moderately tolerant to salt stress and differences in its response to salinity have been previously observed among different cultivars (Attia et al ., , ). Although previous studies (Tarchoune et al ., , ), performed on basil exposed to Na 2 SO 4 or NaCl excess, demonstrated that the contents of ascorbate and glutathione as well as the activities of APX, glutathione reductase and peroxidases were finely regulated by the type of salt and the cultivar sensitivity to stress, information on the role of tocopherols and lipoic acid as well as of SOD and CAT in the response of basil to different type of salts is still scanty.…”

Section: Introductionmentioning

confidence: 99%

Effects of oxidative stress caused by NaCl or Na₂SO₄ excess on lipoic acid and tocopherols in Genovese and Fine basil (Ocimum basilicum)

Tarchoune

Sgherri

Baâtour

et al. 2013

Annals of Applied Biology

View full text Add to dashboard Cite

With this investigation, we aimed to study more deeply the antioxidative response to moderate doses of NaCl or Na 2 SO 4 in two cultivars of basil differentially sensitive to salinity. Tolerance to salinity was previously evaluated by the extent of growth inhibition whereas the antioxidant response was assessed studying the changes in the activities of superoxide dismutase (SOD) and catalase as well as in the amounts of tocopherols and lipoic acid. To make possible the comparison of the responses of basil cv. Genovese and cv. Fine to different salts, the experiment was carried out with equimolar concentrations of Na + . The results showed that changes caused by salinity were dependent on cultivar and exposure time. In particular, cv. Genovese was more sensitive to Na 2 SO 4 excess than cv. Fine whereas both of them had higher SOD activity under NaCl salinity. Generally, Fine basil withstood salinity better than Genovese, being endowed with higher constitutive levels of reduced lipoic acid [dihydrolipoic acid (DHLA)] as well as of αand γ -tocopherols. Moreover, cv. Fine showed the ability to utilise DHLA and to synthesise tocopherols during stressful conditions. Thus, more than one mechanism was involved in basil in the detoxification of reactive oxygen species during salt stress. In fact, when lipoic acid did not participate in the regeneration of reduced ascorbate and glutathione form, high amounts of tocopherols were present, likely protecting cell membranes from oxidative damage and making basil tolerant to moderate salinity.

show abstract

Sodium transport in basil

Abstract: In order to diversify the production of plants

Cited by 20 publications

References 26 publications

Effects of NaCl or Na2SO4 salinity on plant growth, ion content and photosynthetic activity in Ocimum basilicum L.

Effects of NaCl or Na2SO4 salinity on plant growth, ion content and photosynthetic activity in Ocimum basilicum L.

Analysis of salinity effects on basil leaf surface area, photosynthetic activity, and growth

Effects of oxidative stress caused by NaCl or Na₂SO₄ excess on lipoic acid and tocopherols in Genovese and Fine basil (Ocimum basilicum)

Contact Info

Product

Resources

About

Sodium transport in basil

Abstract: In order to diversify the production of plants

Cited by 20 publications

References 26 publications

Effects of NaCl or Na2SO4 salinity on plant growth, ion content and photosynthetic activity in Ocimum basilicum L.

Effects of NaCl or Na2SO4 salinity on plant growth, ion content and photosynthetic activity in Ocimum basilicum L.

Analysis of salinity effects on basil leaf surface area, photosynthetic activity, and growth

Effects of oxidative stress caused by NaCl or Na2SO4 excess on lipoic acid and tocopherols in Genovese and Fine basil (Ocimum basilicum)

Contact Info

Product

Resources

About

Effects of oxidative stress caused by NaCl or Na₂SO₄ excess on lipoic acid and tocopherols in Genovese and Fine basil (Ocimum basilicum)