Recherches sur les causes de l'exclusion du sodium des feuilles des plantes sensibles à NaCl

Slama, Frej

doi:10.1051/agro:19870707

Cited by 5 publications

(4 citation statements)

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“…Nous avons montré la généralité de la relation entre la sensibilité à NaCl et la faculté d'empêcher Na+ de s'accumuler dans les feuilles, en comparant 12 plantes différant quant à leur aptitude à croître en milieu salé (Slama, 1986). Cette (Slama 1987 (Slama, 1986(Slama, et 1987 (Slama, 1986 (Jacoby, 1967;Lahaye et Epstein, 1971;Rains et Floyd, 1970;Stassart et al, 1978;Zid et Grignon, 1985). La (Jacoby, 1964(Jacoby, et 1965Rains, 1969;Morard, 1981;Hajji, 1983;Walker, 1986).…”

Section: Introductionunclassified

Transport de Na+ dans les feuilles et sensibilité des plantes à NaCl. I. Évaluation d'un effet piège au niveau des tiges

Slama¹

1991

Agronomie

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Section: Introductionunclassified

Transport de Na+ dans les feuilles et sensibilité des plantes à NaCl. I. Évaluation d'un effet piège au niveau des tiges

Slama¹

1991

Agronomie

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“…In seedlings, the storage of Na + may allow the avoidance of young leaves invasion by sodium and consequently limiting toxic effects (Strogonov, 1964 ;Munns, 2002). The same phenomenon was observed in leaves, stalks, roots and hypocotyl axes of several glycophytes and halophytes (Jacoby, 1964 ;Levitt, 1980 ;Brun, 1987 ;Slama, 1987 ;Taffouo et al, 2004).…”

Section: Distribution Of Sodium and Potassium Ionsmentioning

confidence: 76%

Salinity effect on seedling growth, water, sodium and potassium distributions in the mangrove species (<i>Avicennia germinans</i> L. (Avicenniaceae)) in semi controlled conditions.

Taffouo¹,

Fonkou²,

Kenné³

et al. 2009

Agronomie Africaine

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The effect on plant growth of NaCl concentrations in soil, under semi-controlled conditions, water content and monovalent cations (Na + and K +) distributions in seedlings of Avicennia germinans were studied. After 4 weeks of growth, results show that NaCl affected leaf growth more than roots and stems. For the two lower vegetal organs, 100 mmoles of NaCl brought about a significant increase in plant growth. A high retention rate of Na was noted in seedling epicotyl axes, contributing in delaying young leaves proliferation and thereby, preventing the toxic effects of this ion. Mature leaves exhibited good adaptative behavior toward salinity stress by increasing succulence due to absorption of large quantities of water and K + in leaves. Potassium uptake in leaves was not found to be affected by NaCl concentration. As a consequence, monovalent cations adsorption resulted in an increase in the water contents of the plant organs. The high accumulation of K + in leaves of A. germinans show that this ion was the major element responsible for osmotic adjustment in leaf cells.

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“…The roots of sensitive plants were less efficient at introducing Na + into the xylem and more efficient at retaining it in their tissues than those of tolerant plants (Slama, 1987).…”

Section: )mentioning

confidence: 87%

“…Moreover, plants sensitive to salinity only accumulated low amounts of sodium in the leaves, which was the case in common bean. Slama (1987) indicated that this plant was very sensitive to salinity. The accumulation of Na + decreased in the following order: roots, stems, leaves.…”

Section: Munnsmentioning

confidence: 99%

Effects of Salinity on Growth and Proline Content on Bean and Alfalfa

Razi

Khadhir

2021

JALSE

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Soil salinity is a major agricultural constraint in many countries. Plants’ response to salinity depends on the species and the salt concentration in the soil. The objective of this study was to test the resistance of three leguminous plants - common bean (variety ‘El-Jadida’), broad bean (variety ‘Claro de Luna’), and alfalfa (variety ‘Diamon’) - to several salinity rates and to show which one was more resistant to salt stress. This study was carried out under controlled conditions, with six NaCl concentrations (0, 1, 3, 6, and 9 g/kg) added to a mixture of potting soil and sand. A completely randomised design was used, where the three legumes were cultivated with different salt concentrations to determine the effect of these doses on fresh biomass, dry mass, and physiological parameters (sodium and proline content). The results showed the negative effect of salinity on fresh biomass and dry mass of shoots and roots. Claro de Luna, the broad bean variety, was more adapted to salinity than alfalfa and common bean. The amount of sodium in the shoots and roots of the three species increased with increasing salinity. Alfalfa may play a role in soil desalination; at 53.33 mM NaCl, 100 mg alfalfa dry mass absorbed 4.5 mg Na per pot, which corresponded to the uptake of about 0.6 kg Na per hectare of soil. Proline content increased with increasing salt concentrations.

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Recherches sur les causes de l'exclusion du sodium des feuilles des plantes sensibles à NaCl

Cited by 5 publications

References 0 publications

Transport de Na+ dans les feuilles et sensibilité des plantes à NaCl. I. Évaluation d'un effet piège au niveau des tiges

Transport de Na+ dans les feuilles et sensibilité des plantes à NaCl. I. Évaluation d'un effet piège au niveau des tiges

Salinity effect on seedling growth, water, sodium and potassium distributions in the mangrove species (<i>Avicennia germinans</i> L. (Avicenniaceae)) in semi controlled conditions.

Effects of Salinity on Growth and Proline Content on Bean and Alfalfa

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