Role of Phytic Acid in Potato Tuber

Nature ◽  
1965 ◽  
Vol 206 (4991) ◽  
pp. 1372-1373 ◽  
Author(s):  
BOGUSŁAW SAMOTUS
Keyword(s):  
1986 ◽  
Vol 92 (6) ◽  
pp. 249-256 ◽  
Author(s):  
P. A. H. M. Bakker ◽  
J. G. Lamers ◽  
A. W. Bakker ◽  
J. D. Marugg ◽  
P. J. Weisbeek ◽  
...  

1979 ◽  
Vol 42 (6) ◽  
pp. 512-518 ◽  
Author(s):  
A. S. CHEEMA ◽  
N. F. HAARD

The stress metabolites rishitin and lubimin accumulate at relatively low concentrations (5–20 ppm) in potato tuber slices subjected to various cell-disruptive treatments including heavy metal salts, sulfhydryl reagents, metabolic inhibitors, detergents, ultraviolet light and lysosomal enzymes. Cold-stored (4 C) tubers are more disposed to terpene accumulation than freshly harvested, 25-C stored and conditioned potatoes. Various inhibitors of DNA transcription and mRNA translation block terpene induction by non-specific elicitors when applied at sufficiently high concentration. However. various protein synthesis inhibitors were shown to be potent elicitors of terpene accumulation when applied at lower concentration. Actinomycin D (25 μg/ml) treatment of discs for 30 min elicits higher levels of rishitin than results from Phytophthora infestans interaction with potato (> 100 ppm). A mechanism for terpene induction based on derepression of “stress metabolite DNA” is proposed to explain the experimental data.


2020 ◽  
Author(s):  
J. Lydia Pramitha ◽  
Sumi Rana ◽  
Pooja Rani Aggarwal ◽  
Rajasekaran Ravikesavan ◽  
A. John Joel ◽  
...  
Keyword(s):  

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