Proline, glycine betaine, total phenolics and pigment contents in response to osmotic stress in maize seedlings
Journal Title: Journal of BioScience and Biotechnology - Year 2015, Vol 4, Issue 3
Abstract
In order to evaluate the fresh weight, RWC, pigment content, total phenolics, proline and glycine betaine responses of maize inbred lines to osmotic stress, a factorial experiment was carried out under laboratory conditions with two maize inbred lines (B73 and MO17) and two osmotic stress levels induced by PEG (control and -0.6 MPa). Fresh weight significantly decreased under drought stress. On the basis of percent inhibition in fresh weight at the osmotic stress MO17 was ranked as tolerant (inhibition 45.30%), and B73 drought sensitive (inhibition more than 50%). Leaf relative water content (RWC) was significantly decreased in both inbred lines under osmotic stress. The pigment concentrations were substantially declined in both maize inbreds under osmotic stressed conditions. However, this reduction was less in B73 than MO17. Osmoitc stress declined the levels of total phenolics in both maize inbreds. On the other hand, the osmotic stress markedly enhanced the levels of proline and glycine betaine in both maize inbreds, but this was more pronounced in MO17. The present results showed that osmotic stress retards the growth and some biochemical attributes of maize inbreds. In conclusion, the level of proline and glycine betaine in maize could improve drought tolerance.
Authors and Affiliations
SAJJAD MOHARRAMNEJAD, OMID SOFALIAN, MOSTAFA VALIZADEH, ALI ASGARI, MOHAMMADREZA SHIRI
Keywords
Related Articles
- EP ID EP164199
- DOI -
- Views 64
- Downloads 0
Validation of internal control genes for quantitative real-time PCR under different experiment conditions in Multiple Myeloma
Multiple myeloma (MM) is a cancer of malignant plasma cells in the bone marrow which might lead to the development of one or more clinical manifestations such as bone destruction, anemia, renal insufficiency etc. Gene ex...
Conformational changes induced by Mg2+ on the multiple forms of glutamine synthetase from Bacillus brevis Bb G1
Conformational changes play an important role in the function of proteins. Glutamine synthetase, an important enzyme of nitrogen metabolism, was purified under sporulating (GSala) and non-sporulating (GSpyr) conditions a...
Evaluation of the phenotypic variation in a caper (Capparis spinosa L.) population growing in south of Tehran using multivariate analysis
The aim of this study was to investigate the phenotypic variation among 100 caper ([i]Capparis spinose [/i]L.) plants growing naturally in south of Tehran. Plant samples were taken randomly from three different regions o...
Thiamethoxam causes histochemical changes in the liver of Aristichthys nobilis Rich., 1845
In the present study, we aimed to investigate the effects of the neonicotinoid insecticide thiamethoxam on the hepatic glycogen in bighead carp (Aristichthys nobilis Rich.). Fish were exposed to 6.6 mg/L, 10 mg/L a...
Molecular cloning, expression and in vitro analysis of soluble cationic synthetic antimicrobial peptide from salt-inducible E. coliGJ1158
Antimicrobial peptides are the upcoming therapeutic molecules as alternative drugs to the existing antibiotics owing to their potent action against pathogenic microorganisms. In this study, to obtain an antimicrobial pep...