Alleviation of allelopathic stress of benzoic acid by indole acetic acid in Solanum lycopersicum

UV-B radiation escalate allelopathic effect of benzoic acid on Solanum lycopersicum L.

“…UV-B stress (Mishra et al, 2009;Singh et al, 2012) and benzoic acid treatment (Yadav and Singh, 2013;Sunaina and Singh, 2015) decreased chlorophyll content. UV-B and BA alone and in combination (BA + UV-B) decreased the chlorophyll content.…”

“…Our results also revealed that elevated level of UV-B and BA alone and in combination decreased the protein content of the seedlings. UV-B stress (Tevini et al, 1981) and BA (Sunaina and Singh, 2015) are known to Mean ± SE values followed by same letters within each column are not significantly different at 0.05 (ANOVA and Duncan's multiple range test), n = 3. C = control, UV-B treatment, B 1 = 0.5, B 2 = 1.0 mM concentrations of benzoic acid, B 1 + UV and B 2 + UV are combined treatments of benzoic acid and UV-B radiation.…”

“…Nitrate reductase is a substrate induced enzyme thus, nitrate regulates the NR activity. Elevated electrolyte leakage is a sign of membrane damage in the Solanum seedlings exposed to allelopathic stress (Farkhondeh et al, 2012;Sunaina and Singh, 2015). The seedlings exposed to UV-B suffer from enhanced electrolyte leakage which evinced membrane damage by UV-B exposure (Dwivedi et al, 2015).…”

“…The activities of SOD, CAT, APX and POD enhanced in response of BA and UV-B. The activity of antioxidant enzyme enhanced in Solanum exposed to BA (Sunaina and Singh, 2015) and UV-B radiation (Mishra et al, 2009). It is evident that antioxidant enzymes regulate reactive oxygen species and consequently decrease plant susceptibility towards different stresses.…”

“…Autotoxicity of root exudates demonstrates benzoic acid as the potent growth inhibitor (Asao et al, 2003). Autotoxicity suppressed the growth of Solanum and the powerful inhibitor was benzoic acid (Sunaina and Singh, 2015). Derivatives of BA extracted from soil suppress the growth of plants (Vaughan and Ord, 1991).…”