caa a22 4500 445841702 CHVBK 20180317145346.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s10725-011-9615-9 doi (NATIONALLICENCE)springer-10.1007/s10725-011-9615-9 Enhanced biomass and steviol glycosides in Stevia rebaudiana treated with phosphate-solubilizing bacteria and rock phosphate [Elektronische Daten] [Mamta Gupta, Shashi Bisht, Bikram Singh, Arvind Gulati, Rupinder Tewari] Biofertilizers offer alternative means to promoting cultivation of medicinal plants less dependent on chemical fertilizers. Present study was aimed at evaluating the potential of phosphate-solubilizing bacteria (PSB) Burkholderia gladioli MTCC 10216, B. gladioli MTCC 10217, Enterobacter aerogenes MTCC 10208 and Serratia marcescens MTCC 10238 for utilizing Mussoorie rock phosphate (MRP) to enhance plant growth, and stevioside (ST) and rebaudioside-A (R-A) contents of Stevia rebaudiana. The solubilization of MRP by PSB strains varied from 1.4 to 15.2μgml−1, with the highest solubilization by Enterobacter aerogenes 10208. The PSB treatment increased the growth and ST and R-A contents of plants. Plant growth and stevioside contents were more pronounced with plants treated with a mixture of strains and grown in MRP amended soil compared to the unamended soil. The increment in shoot length (47.8%), root length (17.4%), leaf dry weight (164%), stem dry weight (116%), total shoot biomass (136%) resulted in enhanced productivity of ST (291%) and R-A (575%) in plants inoculated with mixture of PSB as compared to the uninoculated plants. The soils of PSB treated plants contained more available P than the soils of uninoculated plants (increase of 86-576%). PSB inoculated plants also recorded higher P content (64-273% increase) compared to uninoculated plants. The PSB strains differed in the extent of rhizosphere colonization, carbon source utilization pattern and whole cell fatty acids methyl esters composition. Springer Science+Business Media B.V., 2011 Stevia rebaudiana nationallicence Stevioside nationallicence Rebaudioside-A nationallicence Mussoorie rock phosphate nationallicence Phosphate solubilizing bacteria nationallicence FAME nationallicence Gupta Mamta Department of Microbial Biotechnology, Panjab University (PU), 160014, Chandigarh, India aut Bisht Shashi Plant Pathology and Microbiology Laboratory, Hill Area Tea Science Division, Institute of Himalayan Bioresource Technology (CSIR), 176061, Palampur, Himachal Pradesh, India aut Singh Bikram Department of Natural Plant Products, Institute of Himalayan Bioresource Technology (CSIR), 176061, Palampur, Himachal Pradesh, India aut Gulati Arvind Plant Pathology and Microbiology Laboratory, Hill Area Tea Science Division, Institute of Himalayan Bioresource Technology (CSIR), 176061, Palampur, Himachal Pradesh, India aut Tewari Rupinder Department of Microbial Biotechnology, Panjab University (PU), 160014, Chandigarh, India aut Plant Growth Regulation Springer Netherlands 65/3(2011-12-01), 449-457 0167-6903 65:3<449 2011 65 10725 https://doi.org/10.1007/s10725-011-9615-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10725-011-9615-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gupta Mamta Department of Microbial Biotechnology, Panjab University (PU), 160014, Chandigarh, India aut NATIONALLICENCE 700 1- Bisht Shashi Plant Pathology and Microbiology Laboratory, Hill Area Tea Science Division, Institute of Himalayan Bioresource Technology (CSIR), 176061, Palampur, Himachal Pradesh, India aut NATIONALLICENCE 700 1- Singh Bikram Department of Natural Plant Products, Institute of Himalayan Bioresource Technology (CSIR), 176061, Palampur, Himachal Pradesh, India aut NATIONALLICENCE 700 1- Gulati Arvind Plant Pathology and Microbiology Laboratory, Hill Area Tea Science Division, Institute of Himalayan Bioresource Technology (CSIR), 176061, Palampur, Himachal Pradesh, India aut NATIONALLICENCE 700 1- Tewari Rupinder Department of Microbial Biotechnology, Panjab University (PU), 160014, Chandigarh, India aut NATIONALLICENCE 773 0- Plant Growth Regulation Springer Netherlands 65/3(2011-12-01), 449-457 0167-6903 65:3<449 2011 65 10725 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer