Proteomics reveals elevated levels of PR 10 proteins in saline-tolerant peanut (Arachis hypogaea) calli.
The proteome of a salinity-tolerant Arachis hypogaea L. callus cell line was compared with its sensitive counterpart. Several low molecular weight proteins were detected by two-dimensional electrophoresis as being unique or significantly elevated in the tolerant line. The identities of several of these proteins were established as PR 10 proteins using tandem Mass Spectrometry and are shown to be phosphorylated on the basis of staining with the phosphorylation-specific stain, Pro-Q Diamond. Our results suggest that these differentially phosphorylated PR 10 proteins may play an important role in mediating salinity stress responses.
Jain
Shalu
S
School of Life Sciences, Jawaharlal Nehru University, New Delhi 110 067, India.
Srivastava
Sanjeeva
S
Sarin
Neera Bhalla
NB
Kav
Nat N V
NN
D000595:Amino Acid Sequence; D010367:Arachis / Q000187:drug effects* / Q000235:genetics / Q000378:metabolism*; D020869:Gene Expression Profiling; D018506:Gene Expression Regulation, Plant / Q000187:drug effects; D010940:Plant Proteins / Q000737:chemistry / Q000378:metabolism*; D040901:Proteomics; D012965:Sodium Chloride / Q000494:pharmacology*; D046509:Tissue Culture Techniques
D010940:Plant Proteins; D012965:Sodium Chloride