Effect of NaCl on the growth and the ionic balance K+/Na+ of two populations of Lotus creticus (L.) (Papilionaceae)

Rejili, Mokhtar; Vadel, Ahmedou M.; Guetet, Arbi; Neffatti, Mohamed

doi:10.1016/j.sajb.2007.06.006

Cited by 58 publications

(35 citation statements)

References 40 publications

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“…Higher selectivity towards K and restricted accumulation of Na gave a wider K/Na ratio in tolerant than sensitive genotypes particularly at the critical salinity. Similar results corroborate with the findings of Hannon and Barber (1972), Ashraf et al (2003), Wenxue et al (2003), Mansour et al (2005), Mokhamed et al (2006) and Rejili et al (2007). An increasing concentration of NaCl (60Á120 mM) in growth medium reduced the maximum accumulation of K ' and N ' in leaves of all genotypes (Table 1).…”

Section: Resultssupporting

confidence: 91%

“…A decrease in value for SRI under salt stress (Table 1) establishes that increasing levels of salinity decrease the tolerance to the salt stress. Rejili et al (2007) also reported the similar results.…”

Section: Resultssupporting

confidence: 67%

“…Leaf area ground area Sensitivity rate index (SRI) was calculated according to the following formula, used by Rejili et al (2007):…”

Section: Measurement Of Growth Characteristicsmentioning

confidence: 99%

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Morphological and physio-biochemical characterization ofBrassica junceaL. Czern. & Coss. genotypes under salt stress

Siddiqui

Mohammad

Khan

2009

Journal of Plant Interactions

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Soil salinity is one of the major factors responsible for the low productivity of crop plants and has become an increasing threat for agriculture. In this context, the selection of tolerant genotype/s may be one of the remedies. Keeping this in view, the effect of NaCl (0Á120 mM) stress on shoot length (SL) plant , stomatal conductance (g s ), net photosynthetic rate (P N ), total chlorophyll (Chl) content, malondialdehyde (MDA) content, sensitivity rate index (SRI), leafnitrogen (N), potassium (K) and sodium (Na) content, leaf-K/Na ratio, nitrate reductase (NR: EC.1.6.6.1) and ATP-sulphurylase (ATP-S: EC.2.7.7.4) activities and proline (Pro) and glycinebetaine (GB) content of ten genotypes of Brassica juncea L. was studied at 55 and 65 days after sowing (DAS). NaCl treatments decreased all the above parameters, except Pro, GB, MDA, Na and SRI at both stages. Salt stress resulted in accumulation of Pro and GB, in all genotypes. The magnitude of increase in both osmolytes (Pro and GB) was higher in genotype G 8 than the other genotypes. Salt stress increased MDA and Na content while it decreased Chl, N and K content and K/Na ratio, Chl content, NR and ATP-S activities in all genotypes. But the magnitude of increase in MDA and Na content and decrease in SL plant(1 , A leaf (1 , LAI, P N , g s , Chl content and NR and ATP-S activities in genotype G 8 was more than that of other genotypes. These results suggest that the salt-tolerant genotype may have better osmotic adjustment and protection from free radicals by increasing the accumulation of Pro and GB content with overproduction of N and K and higher K/Na, NR and ATP-S activities under salinity stress.

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Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 67%

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Morphological and physio-biochemical characterization ofBrassica junceaL. Czern. & Coss. genotypes under salt stress

Siddiqui

Mohammad

Khan

2009

Journal of Plant Interactions

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“…Besides osmotic effects, salt stress affects plant growth and development by causing an accumulation of ions in detrimental concentrations in tissues (e.g., Na + and Cl -) and alterations to the nutritional content of essential ions (e.g., Ca +2 and K + ) (Rejili et al, 2007). Our results showed that Na + concentration increased while K + content reduced, especially at 225 and 300 mM salt treatments for all cultivars ( Table 2).…”

Section: Cultivarsmentioning

confidence: 56%

Impact of salt stress on photosystem II efficiency and antioxidant enzyme activities of safflower (Carthamus tinctorius L.) cultivars

Erdal¹,

Çakirlar²

2014

Turk J Biol

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This study was conducted to determine the tolerance of safflower (Carthamus tinctorius L.) cultivars (Dinçer, Remzibey-05, and Yenice) against salt stress based on some physiological and biochemical parameters at the vegetative stage. Eighteen-day-old plants were subjected to salt stress [0 (control), 75, 150, 225, and 300 mM NaCl concentrations] for 12 days, which led to a significant decrease in growth parameters (stem growth, fresh weight, and relative water content) and the photosynthetic pigment contents of the safflower cultivars. The photochemical activities of photosystem II of the cultivars were negatively affected by salinity, especially at the highest concentration (300 mM). Salt stress decreased K + content and K + /Na + ratio while it increased Na + content. Malondialdehyde and free proline contents in the leaves of cultivars increased gradually in proportion to the increase of NaCl concentration. Analysis of antioxidant enzyme activities showed that these enzymes responded differently to the NaCl concentrations. Dinçer, with higher antioxidant enzyme activities, had a more effective response than the other cultivars. Considering growth and biochemical and chlorophyll fluorescence parameters with the endogenous defense system, Dinçer had a higher withstanding capacity against salinity than the other cultivars.

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“…Most legumes are known to be salt sensitive (Munns 2002), and the increasing worldwide use of irrigation has led to the prediction that, by 2050, 50% of all arable land will be salinized (Wang et al, 2003). However, salt-affected soils can be utilized by growing salt-tolerant crops, because such crops would allow expansion of crop production to areas where conventional reclamation procedures are economically or technically limited (Ashraf and McNeily, 2004;Rejili et al, 2007). Vadez et al (2006) and Mantri et al (2007) reported that it is becoming increasingly important to produce genotypes/cultivars tolerant to high salinity for sustainable alfalfa production.…”

Section: Introductionmentioning

confidence: 99%

Effect of Mycorrhizal Inoculation on Growth, Nitrogen Fixation and Nutrient Uptake in Alfalfa (Medicago sativa) under Salt Stress

Moradi

2016

Cercetari Agronomice in Moldova

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ABSTRACT. Most legumes in natural conditions form a symbiosis with arbuscular mycorrhizal (AM) fungi. AM fungi in saline soils have been reported to improve salinity tolerance and growth in plants. In the present study, interaction between mycorrhizal fungus, Glomus mosseae, and salinity stress in relation to plant growth, nitrogen fixation, and nutrient accumulation was evaluated in alfalfa (Medicago sativa). Two alfalfa cultivars (Bami and Yazdi) were compared under different levels of salinity with and without mycorrhizal inoculations. Salt stress resulted in a noticeable decline in shoot and root dry matter accumulation, resulting in a decline in the shoot to root ratio (SRR) in all plants. However, Bami was found to be more tolerant to salinity than Yazdi. Inoculated plants exhibited better growth and biomass accumulation under stressed as well as unstressed conditions. Mycorrhizal colonization (MC) was reduced with increasing salinity levels, but the mycorrhizal dependency (MD) increased, which was more evident in Yazdi. Nodulation was completely inhibited under salt stress conditions for both non -AM inoculated alfalfa varieties. Nodulation only occurred in inoculated plants. Nitrogenase activity was reduced with increasing salt concentrations. AM inoculated plants had considerably higher nodule numbers, dry weights, and nitrogenase activity under nonsaline environments. Bami had a comparatively lower Na + concentration and higher K + and Ca 2+ concentrations than Yazdi. Although nitrogen (N) and phosphorus (P) contents declined with increasing salinity, Bami had higher levels of N and P, as compared with Yazdi. Plants inoculated with Glomus mosseae had better plant growth and nitrogen fixation under salt stress.

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Effect of NaCl on the growth and the ionic balance K+/Na+ of two populations of Lotus creticus (L.) (Papilionaceae)

Cited by 58 publications

References 40 publications

Morphological and physio-biochemical characterization ofBrassica junceaL. Czern. & Coss. genotypes under salt stress

Morphological and physio-biochemical characterization ofBrassica junceaL. Czern. & Coss. genotypes under salt stress

Impact of salt stress on photosystem II efficiency and antioxidant enzyme activities of safflower (Carthamus tinctorius L.) cultivars

Effect of Mycorrhizal Inoculation on Growth, Nitrogen Fixation and Nutrient Uptake in Alfalfa (Medicago sativa) under Salt Stress

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