Quantitative changes in phytochemicals in tomato plant due to application of resistance inducing chemicals and their role in inhibition of early blight pathogen Alternaria alternata
Journal Title: Journal of Applied and Natural Science - Year 2016, Vol 8, Issue 1
Abstract
Phytochemicals viz. soluble protein, reducing sugar and phenols were quantified from tomato (Solanum lycopersicon) leaves after application of resistance inducing chemicals viz. salicylic acid, β-aminobutyric acid, chitosan and 2,6- dichloroisonicotinic acid as 8 hr seed dip treatment or 2 hr seedling dip treatment or both treatment to study their effect on induction of resistance and inhibition of growth of pathogen. Soluble proteins and phenols were found maximum due to seed+seedling treatment of salicylic acid @ 1.5 mM concentration with 76.90 per cent and 102.68 per cent increase over control whereas reducing sugar was maximum for seed+seedling treatment of β-aminobutyric acid @ 15.0 mM concentration with 61.38 per cent increase over control. The increased level of protein quantity had no effect on inhibition of Alternaria alternata growth, whereas the increased quantity of sugar inhibited the average growth of Alternaria up to 19.39 per cent. Among phenolic compounds catechol and the cinnamic acid (formed in shikimic acid pathway of phenol biosynthesis) was inhibitory to the A. alternata whereas tannic acid had some effect on inhibition of Alternaria growth (13.84 % fungal growth inhibition). The increased level of sugar+phenol tested against the pathogen completely inhibited the growth of Alternaria fungus. Thus, the increased level of reducing sugar and phenol in tomato leaves due to the application of resistance inducing chemicals seems to be inhibitory to the pathogens multiplication and pathogenesis.
Authors and Affiliations
S. A. Raut, S. G. Borkar
Keywords
Related Articles
- EP ID EP283964
- DOI -
- Views 70
- Downloads 0
Arsenic induced genotoxic and histopathological changes in male Swiss albino mice, Mus musculus
The present study was carried out to investigate the effect of arsenic trioxide on the DNA and histomorphology of testis, liver and kidney of Swiss albino mice, Mus musculus. Oral administration of arsenic trioxide induc...
Studies on biochemical mechanism of resistance for the management of Marssonina leaf blotch of apple caused by Marssonina coronaria (Ellis & J. J. Davis) J. J. Davis
To study the mechanism of resistance developed in three different cultivars of apple viz; Starking Delicious, Tydeman’s Early Worcester and Granny Smith against Marssonina coronaria , after treatment with SAR inducing ch...
Role of market information system by traders for gram crop in Bhiwani district of Haryana
Cicer arietinum is a suitable crop in Bhiwani district of Haryana covering Siwani and Tosham Blocks were selected purposively on the basis of maximum production under gram crop. Further to study the marketing information...
Bacterial flora associated with the selected life stages and organs of farmed giant freshwater prawn Macrobrachium rosenbergii (de Man)
Bacteria associated with different life stages of giant freshwater prawn (Macrobrachium rosenbergii de Man) were analyzed. The gill, hepatopancreas, haemolymph of brood and juveniles as well as the egg, larvae and larval...
Effect of super-optimal levels of fertilizers on soil enzymatic activities during growth stages of wheat crop on an Inceptisol
A field experiment was conducted during 2010-2011 and 2011-2012 to investigate the effect of optimal (100% NPK) to super-optimal doses (200% NPK) of mineral fertilizers on soil enzymes such as dehydrogenase (DHA), acid p...