Nitrogen fixation and carbon assimilation of the desert legume Tephrosia apollinea under PEG-induced osmotic stress

Flora ◽  
2019 ◽  
Vol 251 ◽  
pp. 105-113 ◽  
Author(s):  
M. Iftikhar Hussain ◽  
Ali El-Keblawy ◽  
Alaa Emad Aljabi ◽  
Duaa Emad Aljabi ◽  
Mohamad Hafez ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Osmotic Stress ◽  
Carbon Assimilation ◽  
Tephrosia Apollinea

Osmoregulation in Klebsiella pneumoniae: enhancement of anaerobic growth and nitrogen fixation under stress by proline betaine, γ-butyrobetaine, and other related compounds

1984 ◽  
Vol 30 (3) ◽  
pp. 299-305 ◽  
Author(s):  
Daniel Le Rudulier ◽  
Theophile Bernard ◽  
Gabrielle Goas ◽  
Jack Hamelin
Keyword(s):  
Growth Rate ◽  
Nitrogen Fixation ◽  
Klebsiella Pneumoniae ◽  
Osmotic Stress ◽  
Anaerobic Growth ◽  
Methyl Groups ◽  
Wild Type ◽  
Whole Cells ◽  
Related Compounds ◽  
Exogenous Proline

Exogenous proline betaine (stachydrine or N-dimethylproline) or γ-butyrobetaine (γ-trimethylaminobutyrate), at a concentration as low as 1 mM, were found to stimulate the growth rate of Klebsiella pneumoniae, wild type M5A1, in media of inhibitory osmotic strength (0.8 M NaCl). Simultaneously, nitrogen fixation by whole cells, a process particularly sensitive to osmotic stress, was strongly enhanced by these compounds. However, in the absence of sodium chloride, both the growth and nitrogen fixation were not affected by the addition of the methylammonium derivatives in the medium. The sensitivity of the nitrogen fixation to osmotic stress was used as a bioassay to evaluate the potentiality of osmoprotective compound in relation to the number of methyl groups on the nitrogen atom of glycine, proline, and γ-aminobutyrate. Experiments with sarcosine (monomethylglycine), dimethylglycine, and glycine betaine (trimethylglycine), or experiments with mono- and di-methylproline or γ-mono-, γ-di-, γ-tri-methylaminobutyrate, indicated that the greatest stress tolerance was always obtained with the more N-methylated compounds.

scholarly journals Erratum to: Osmotic stress affects water relations, growth, and nitrogen fixation in Phaseolus vulgaris plants

2008 ◽  
Vol 30 (4) ◽  
pp. 579-579
Author(s):  
Sameh Sassi Aydi ◽  
Samir Aydi ◽  
Esther Gonzalez ◽  
Chedly Abdelly
Keyword(s):  
Nitrogen Fixation ◽  
Phaseolus Vulgaris ◽  
Osmotic Stress ◽  
Water Relations

Osmotic stress affects water relations, growth, and nitrogen fixation in Phaseolus vulgaris plants

2008 ◽  
Vol 30 (4) ◽  
pp. 441-449 ◽  
Author(s):  
Sameh Sassi Aydi ◽  
Samir Aydi ◽  
Esther Gonzalez ◽  
Chedly Abdelly
Keyword(s):  
Nitrogen Fixation ◽  
Phaseolus Vulgaris ◽  
Osmotic Stress ◽  
Water Relations

Factors controlling nitrogen fixation in temperate seagrass beds

2015 ◽  
Vol 525 ◽  
pp. 41-51 ◽  
Author(s):  
PLM Cook ◽  
V Evrard ◽  
RJ Woodland
Keyword(s):  
Nitrogen Fixation ◽  
Seagrass Beds

NEW CLOVER CULTIVARS FOR WAIKATO DAIRY PASTURE: ESTABLISHMENT, PRODUCTION AND NITROGEN FIXATION DURING THE FIRST YEAR

1988 ◽  
pp. 207-211
Author(s):  
S.F. Ledgard ◽  
G.J. Brier ◽  
R.N. Watson
Keyword(s):  
Nitrogen Fixation ◽  
White Clover ◽  
Dairy Cow ◽  
Red Clover ◽  
First Year ◽  
Buried Seed

Clover cultivars grown with ryegrass were compared in an establishment year under dairy cow grazing. There was no difference in total annual productton but summer production was greater with Pawera red clover and with Kopu or Pitau white clovers. Clovers differed little in the proportion of nitrogen fixed, except during summer when values were highest for Pawera. Pawera was less prone to nematode attack than white clover cultivars but was more susceptible to clover rot. Resident clovers and high buried seed levels (e.g., 11-91 kg/ha) made introduction of new clover cultivars difficult. Sown clovers established best (50-70% of total clover plants) when drilled into soil treated with dicamba and glyphosate. Keywords: white clover, red clover, nematodes. nitrogen fixation, pasture renovation

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