caa a22 4500 606218815 CHVBK 20210128101114.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s11104-015-2410-z doi (NATIONALLICENCE)springer-10.1007/s11104-015-2410-z Soil inoculation with Burkholderia sp. LD-11 has positive effect on water-use efficiency in inbred lines of maize [Elektronische Daten] [Xianwei Fan, Haiyang Hu, Guiyuan Huang, Feiyan Huang, Youzhi Li, Jairo Palta] Background and aims: Plant-growth promoting rhizobacteria (PGPR) can promote plant performance under water deficit, but the physiology and biochemistry of the promoting process induced by PGPR under different water deficits is not well known in maize (Zea mays L). Methods: A glasshouse study was conducted to determine the effects of Burkholderia sp. LD-11 on morphophysiological traits for plant growth and homeostasis between reactive oxygen species (ROS) and antioxidant enzymes under five regimens in two maize inbred lines. Results: Soil inoculation with Burkholderia sp. LD-11 promoted biomass accumulation and improved instantaneous water-use efficiency (WUEi), regardless of the soil water availability. It also triggered production of indole-3-acetic acid (IAA), decreasing the accumulation of abscisic acid (ABA) induced by the water deficit, alleviated ROS accumulation, and resulted in a reduction in lipid peroxidation induced by the water deficits. Soil inoculation also enhanced the tolerance to water deficit through reducing stomatal aperture by increasing the sensitivity of stomatal conductance (g s) to small changes in ABA concentration in the leaves. Conclusions: Soil inoculation with Burkholderia sp. LD-11 enhanced root systems and WUEi, offering a potential avenue for improving maize tolerance to water deficit. Springer International Publishing Switzerland, 2015 Burkholderia sp. LD-11 nationallicence Inbred lines of maize nationallicence Water-use efficiency nationallicence Abscisic acid nationallicence Reactive oxygen species nationallicence ABA : Abscisic acid nationallicence ACC : 1-aminocyclopropane-1-carboxylic acid nationallicence CAT : Catalase nationallicence g s : Stomatal conductance nationallicence IAA : Indole-3-acetic acid nationallicence LWP : Leaf water potential nationallicence MDA : Malondialdehyde nationallicence PFC : Pot soil water capacity nationallicence PGPR : Plant growth promoting rhizobacteria nationallicence Pn : Net leaf photosynthetic rate nationallicence POD : Peroxidase nationallicence PPFD : Photosynthetic photon flux density nationallicence ROS : Reactive oxygen species nationallicence SOD : Superoxide dismutase nationallicence SWC : Soil water content nationallicence Tr : Transpiration rate nationallicence WUEi : Instantaneous water-use efficiency nationallicence Fan Xianwei State Key Laboratory for Conservation and Utilization of Agricultural Bioresource in Subtropics, College of Life Science and Technology, Guangxi University, 530005, Nanning, China aut Hu Haiyang State Key Laboratory for Conservation and Utilization of Agricultural Bioresource in Subtropics, College of Life Science and Technology, Guangxi University, 530005, Nanning, China aut Huang Guiyuan State Key Laboratory for Conservation and Utilization of Agricultural Bioresource in Subtropics, College of Life Science and Technology, Guangxi University, 530005, Nanning, China aut Huang Feiyan State Key Laboratory for Conservation and Utilization of Agricultural Bioresource in Subtropics, College of Life Science and Technology, Guangxi University, 530005, Nanning, China aut Li Youzhi State Key Laboratory for Conservation and Utilization of Agricultural Bioresource in Subtropics, College of Life Science and Technology, Guangxi University, 530005, Nanning, China aut Palta Jairo CSIRO, Agriculture flagship, Private Bag No. 5, 6913, Wembley, WA, Australia aut Plant and Soil Springer International Publishing 390/1-2(2015-05-01), 337-349 0032-079X 390:1-2<337 2015 390 11104 https://doi.org/10.1007/s11104-015-2410-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-015-2410-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fan Xianwei State Key Laboratory for Conservation and Utilization of Agricultural Bioresource in Subtropics, College of Life Science and Technology, Guangxi University, 530005, Nanning, China aut NATIONALLICENCE 700 1- Hu Haiyang State Key Laboratory for Conservation and Utilization of Agricultural Bioresource in Subtropics, College of Life Science and Technology, Guangxi University, 530005, Nanning, China aut NATIONALLICENCE 700 1- Huang Guiyuan State Key Laboratory for Conservation and Utilization of Agricultural Bioresource in Subtropics, College of Life Science and Technology, Guangxi University, 530005, Nanning, China aut NATIONALLICENCE 700 1- Huang Feiyan State Key Laboratory for Conservation and Utilization of Agricultural Bioresource in Subtropics, College of Life Science and Technology, Guangxi University, 530005, Nanning, China aut NATIONALLICENCE 700 1- Li Youzhi State Key Laboratory for Conservation and Utilization of Agricultural Bioresource in Subtropics, College of Life Science and Technology, Guangxi University, 530005, Nanning, China aut NATIONALLICENCE 700 1- Palta Jairo CSIRO, Agriculture flagship, Private Bag No. 5, 6913, Wembley, WA, Australia aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 390/1-2(2015-05-01), 337-349 0032-079X 390:1-2<337 2015 390 11104