Potentiality of organotin(IV) compounds in the control of foliar blight disease of wheat (Triticum aestivum) caused byBipolaris sorokiniana

Abstract

Three different types of eight organotin(IV) compounds (of which four were newly synthesised) were screened against Bipolaris sorokiniana. The new compounds were characterised by elemental, IR, 1 H and 13 C NMR spectral analyses. The experiments were carried out in the field and laboratory between the months of at Uttar Banga Krishi Viswavidyalaya, Cooch Bihar, W.B., India. All of the organotin(IV) compounds were tested for the toxicity assay against Indian wheat (Triticum aestivum L.), cv. Sonalika. The spore germination and growth of B. sorokiniana and the biochemical changes associated with the induction of resistance by these chemicals were also tested. The influence of the organic groups (attached to tin atom) of the three different types of compounds studied on the fungicidal activity is remarkably distinct. Some of the compounds tested are more active in controlling the fungus than a commonly used commercial product.

Antimicrobial Effect of Organotin Compounds Derived From Phenolic Schiff Bases

“…The tin(IV) derivatives of phenolic Schiff bases were synthesized according to the methodology reported in the literature with slight modifications using triphenyltin(IV) chloride and diphenyltin(IV) dichloride as metal precursors (Sarkar et al, 2011). These tin(IV) derivatives are soluble in usual solvents such as methanol and DMSO and showed to be non-electrolytes in methanol.…”

The Coordination Chemistry in the Antifungal Effect of Tin(IV)-Bis(Pyrimidin-2-Ylthio)Alkane Derivatives

“…The standard range of concentration in which organotin(IV)-Schiff bases are active against microorganinsms is 50 to 250 mg L -1 [20,21]. This range of concentration is an outstanding result, although marketable fungicides and bactericides such as Tetracycline, Chloramfenicol, Kanamycin, Cefazolin Sodium and Cefotaxime show growth inhibition at lower concentration (3.12 mg L -1 ) [22].…”