Effet du chlorure de sodium sur la composition lipidique de la feuille de colza (Brassica napus)

1995 ◽  
Vol 73 (4) ◽  
pp. 620-628 ◽  
Author(s):  
Fouzia Najine ◽  
Brahim Marzouk ◽  
Abdelkader Cherif
Keyword(s):  
Sodium Chloride ◽  
Brassica Napus ◽  
Palmitic Acid ◽  
Lipid Composition ◽  
Hydroponic Culture ◽  
Total Lipids ◽  
Brassica Napus L ◽  
Lipid Contents ◽  
Nacl Concentration ◽  
Hexadecatrienoic Acid

The effect of increasing NaCl concentrations up to 170 mM on the lipid composition of leaf membranes was studied on rape (Brassica napus L. var. oleifera Metzg) in hydroponic culture for one month. At NaCl concentrations lower than 102 mM, the polar glycerolipid biosynthesis was stimulated. NaCl concentrations higher than 102 mM reduced the contents in total lipids, monogalactosyldiacylglycerol, digalactosyldiacylglycerol, and phospholipids. In contrast, the neutral lipid contents increased with increasing NaCl concentration. An increase in NaCl induced a decrease in linolenic and hexadecatrienoic acid contents and an increase in linoleic and palmitic acid contents in all lipid groups. Key words: rape, lipids, sodium chloride.

Effects of different NaCl concentration on the antioxidant enzymes in oilseed rape (Brassica napus L.) seedlings

2009 ◽  
Vol 59 (3) ◽  
pp. 273-278 ◽  
Author(s):  
Qi-lin Dai ◽  
Chen Chen ◽  
Bin Feng ◽  
Ting-ting Liu ◽  
Xia Tian ◽  
...  
Keyword(s):  
Antioxidant Enzymes ◽  
Brassica Napus ◽  
Oilseed Rape ◽  
Brassica Napus L ◽  
Nacl Concentration

The proteins of rapeseed (Brassica napus L.) soluble in salt solutions

1968 ◽  
Vol 46 (10) ◽  
pp. 1191-1197 ◽  
Author(s):  
R. S. Bhatty ◽  
S. L. McKenzie ◽  
A. J. Finlayson
Keyword(s):  
Sodium Chloride ◽  
Brassica Napus ◽  
Urea Solution ◽  
Minor Components ◽  
Sedimentation Analysis ◽  
Insoluble Protein ◽  
Salt Solutions ◽  
Brassica Napus L ◽  
S Protein ◽  
Salt Extract

The salt-soluble proteins from rapeseed (Brassica napus L.), variety Nugget, have been extracted with 0.01 M sodium pyrophosphate (pH 7.0) and with 10% sodium chloride, and subsequently separated into a number of components. There are two major proteins in the pyrophosphate salt extract, one is neutral (the 12 S protein) and the other is basic (the 1.7 S protein). They constitute 30% of the nitrogen in the extract. There are nine other minor components in this extract. The 10% sodium chloride extract contains a water-insoluble protein (the 12 S protein) which constitutes 21% of the nitrogen in the extract and appears to be similar in properties to the 12 S protein in the pyrophosphate salt extract. This protein, upon sedimentation analysis in 6 M urea solution and in 0.1 M glycine–HCl buffer (pH 2.2), appeared to be an aggregate of units of smaller molecular weight.

scholarly journals Effect of salinity and radiation on proline accumulation in seeds of canola (Brassica napus L.)

2010 ◽  
Vol 56 (No. 7) ◽  
pp. 312-317 ◽  
Author(s):  
M. Ashrafijou ◽  
S.A. Sadat Noori ◽  
A. Izadi Darbandi ◽  
S. Saghafi
Keyword(s):  
Brassica Napus ◽  
Laser Beam ◽  
Laser Irradiation ◽  
Plant Traits ◽  
Proline Accumulation ◽  
Proline Content ◽  
Brassica Napus L ◽  
Nacl Concentration ◽  
Infra Red ◽  
Winter Rapeseed

Since laser beam may affect plant traits, it was used to enhance accumulation of proline in rapeseed and therefore to improve its tolerance to the salinity stress. This investigation was performed to study the effect of NaCl concentration in irrigated water (0, 100, 200 and 300 mmol NaCl) on proline accumulation of Canola (Brassica napus L.) after laser irradiation (Red, Infra-red and Nd:YAG) at two exposure treatments. In each exposure, seeds were irradiated for three minutes once or twice by the laser set. Free proline content in leaves increased significantly by increasing of NaCl concentration. Also proline content significantly increased with irradiation by laser beam. The Red laser irradiation used once and the Nd:YAG laser used twice had the greatest effect on the proline content whereas the Infrared laser had a low effect. Double application of irradiation induced a significantly higher amount of proline in the leaves compared to only one application. This is the first report on using different lasers irradiation on proline content in a winter rapeseed.

scholarly journals Sodium Chloride Salt Tolerance Evaluation and Classification of Spring Rapeseed (Brassica napus L.)

2019 ◽  
Vol 11 (32) ◽  
pp. 154-162
Author(s):  
Mehdi Keshavarzian ◽  
Mahmoud Toorchi ◽  
Mohammad Reza Shakiba ◽  
◽  
◽  
...  
Keyword(s):  
Sodium Chloride ◽  
Brassica Napus ◽  
Salt Tolerance ◽  
Chloride Salt ◽  
Brassica Napus L

Sodium chloride effects on lipase activity in germinating rape seeds

2000 ◽  
Vol 28 (6) ◽  
pp. 899-902 ◽  
Author(s):  
D. D. Ben Miled ◽  
M. Zarrouk ◽  
A. Chérif
Keyword(s):  
Sodium Chloride ◽  
Brassica Napus ◽  
Seed Germination ◽  
Seedling Growth ◽  
Lipase Activity ◽  
High Salt ◽  
Salt Treatment ◽  
Brassica Napus L ◽  
Germination And Growth ◽  
Radicle Length

Seeds of rape (Brassica napus L.) were germinated at various NaCl concentrations up to 200 mM. Germinating levels, seedling growth, triacylglycerol mobilization and lipase activity were investigated. High salt concentrations resulted in retardation of seed germination. Seedling growth as measured by radicle length was severely reduced by NaCl doses higher than 50 mM. Moreover, the mobilization of storage oil in control rapeseed seedlings, started about 24 h after imbibition. As for germination and growth, elevated salt concentrations are found to delay triacylglycerol degradation. Experiments using triolein as substrate indicated clearly that lipase activity was inhibited by salt treatment.

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