Biotechnology Reports · 2014 · 396 citations · 11 references
AgricultureAgronomyPlant SciencesPlant BiotechnologyPlant NutritionPlant PhysiologyEssential NutrientsEssential Plant NutrientsMineral Nutrient EnhancementNutrient AssimilationPlant Natural Product BiosynthesisPlant Nutrition ManagementPhysiological QualityPhysiological StatusPlant Nutrient PhysiologyRhizosphere Microbial EcologyRhizosphere Microbial InteractionsRoot Length AssessmentRoot Length MeasurementRoot Nodule Formation
TiO2 nanoparticle (NPs) biosynthesis is a low cost, ecofriendly approach developed using the fungi Aspergillus flavus TFR 7. To determine whether TiO2 NPs is suitable for nutrient, we conducted a two part study; biosynthesis of TiO2 NP and evaluates their influence on mung bean. The characterized TiO2 NPs were foliar sprayed at 10 mgL−1 concentration on the leaves of 14 days old mung bean plants. A significant improvement was observed in shoot length (17.02%), root length (49.6%), root area (43%), root nodule (67.5%), chlorophyll content (46.4%) and total soluble leaf protein (94%) as a result of TiO2 NPs application. In the rhizosphere microbial population increased by 21.4–48.1% and activity of acid phosphatase (67.3%), alkaline phosphatase (72%), phytase (64%) and dehydrogenase (108.7%) enzyme was observed over control in six weeks old plants owing to application of TiO2 NPs. A possible mechanism has also been hypothesized for TiO2 NPs biosynthesis.
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