title: [Effects of endophytic Paenibacillus polymyxa S-7 on photosynthesis, yield, and quality of sugar beet].
abstract: This study showed that inoculation of endophytic Paenibacillus polymyxa S-7 could significantly (P < 0.05) promote the photosynthesis of sugar beet. After the inoculation, the leaf net photosynthetic rate (Pn), stomatal limitation (Ls), stomatal conductance (Gs), and transpiration rate (Tr) increased by 16.11%, 23.82%, 41.91%, and 34.80%, respectively, while the stomatal intercellular CO2 concentration (Ci) decreased by 21.09%. Inoculation of endophytic P. polymyxa S-7 could also increase sugar beet yield and its quality significantly (P < 0.05), with the tuberous root biomass and its sugar content increased by 25.63% and 17.46%, respectively. It was concluded that endophytic P. polymyxa S-7 not only affected the photosynthetic parameters, but also promoted the yield and quality of sugar beet.
authors.affiliation: Key Laboratory of Green Chemical Processes of Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi 832003, Xinjiang, China. syw1973@126.com
authors.forename: Ying-wu
authors.initials: YW
authors.lastname: Shi
authors.forename: Kai
authors.initials: K
authors.lastname: Lou
authors.forename: Chun
authors.initials: C
authors.lastname: Li
authors.forename: Liang
authors.initials: L
authors.lastname: Yang
authors.forename: Xing-qin
authors.initials: XQ
authors.lastname: Wang
authors.forename: Wen-yu
authors.initials: WY
authors.lastname: Liu
mesh_terms: D027461:Beta vulgaris / Q000254:growth & development / Q000382:microbiology* / Q000502:physiology*; D018533:Biomass; D056507:Paenibacillus / Q000502:physiology*; D010788:Photosynthesis; D018526:Plant Transpiration; D011786:Quality Control