Enhanced maize productivity by inoculation with diazotrophic bacteria

By P. J. Riggs, M. Chelius, A. L. Iniguez, Shawn M. Kaeppler, E. Triplett. 2001

260 citations recorded by the source corpus.

The objective of this work over the last 3 years was to identify maize-endophyte associations with increased plant productivity compared with uninoculated controls. We have used a collection of endophytes isolated by several groups. The experiments were done under field and greenhouse conditions in the presence or absence of added fixed nitrogen (N). Significant yield enhancements of N-fertilized maize were obtained with bacterial endophytes that we have isolated from N-efficient lines of maize (such as Klebsiella pneumoniae 342) or switchgrass (Pantoea agglomerans P101 and P102). Several other strains from other groups were also tested with our best yield enhancements from two Brazilian strains, Gluconacetobacter diazotrophicus PA15 and Herbaspirillum seropedicae Z152. Field experiments in Wisconsin were conducted in 1998, 1999 and 2000 and in an additional four states (Illinois, Iowa, Indiana and Nebraska) in 2000, with a minimum of two elite lines of maize at each site, each year. No strains were capable of relieving the N-deficiency symptoms of unfertilized maize in either the field or the greenhouse.

Subfields: Biomedical Engineering, Plant Science

View Paper: https://www.semanticscholar.org/paper/56734bf4a03189c01fa70afc06d07da58aeec96c

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. L. de-Bashan
2. Y. Bashan
3. J. Kloepper

In Plant Science

1. Y. Bashan
2. L. de-Bashan
3. Juan-Pablo Hernández
4. J. Kloepper
5. L. Nelson
6. Pamela Calvo
7. S. Prabhu
8. V. Matiru

Citations in the corpus

• Biological nitrogen fixation in maize (Zea mays L.) by 15N isotope-dilution and identification of associated culturable diazotrophs (2009, background): “For these reasons, the benefits from BNF in maize cultivation are very important from both an environmental and economic perspective and for sustainability (Döbereiner 1995; Triplett 1996; Chelius and Triplett 2000b; Riggs et al. 2001; Kennedy et al. 2004).”
• Growth promoting effects of corn (Zea mays) bacterial isolates under greenhouse and field conditions (2010, unknown): “Inoculation of corn with such bacteria has been shown to enhance crop yields (Jacoud et al., 1998; Riggs et al., 2001).”
• Plant growth-promoting rhizobacteria (PGPR): emergence in agriculture (2011, background): “Number of PGPR strains such as Azoarcus sp., Beijerinckia sp., Klebsiella pneumoniae, Pantoea agglomerans and Rhizobium sp. are reported to fix atmospheric N2 in soil (Antoun et al. 1998; Riggs et al. 2001) and make it available to plants.”
• Quantitative assessments of the host range and strain specificity of endophytic colonization by Klebsiella pneumoniae 342 (2003, background): “In addition, this strain can enhance the growth of maize in a manner that appears to be independent of nitrogen fixation (Riggs et al., 2001).”
• Bacterial endophytes and their interactions with hosts. (2006, unknown): “Riggs, P. J., Chelius, M. K., Iniguez, A. L., Kaeppler, S. M., and Triplett, E. W. 2001.”
• Non-symbiotic bacterial diazotrophs in crop-farming systems : can their potential for plant growth promotion be better exploited? (2004, background): “Other species of Azospirillum capable of increasing the yield of maize are A. lipoferum and A. indigens, and Azorhizobium caulinodans was also capable of giving such beneficial effects (Riggs et al., 2001).”
• Bacteria and fungi can contribute to nutrients bioavailability and aggregate formation in degraded soils. (2016, unknown): “Prokaryotic microorganisms known as diazotrophs fix atmospheric N2 in the form of ammonia (NH3) through their normal metabolic process (Riggs et al., 2001; Galloway et al., 2008).”
• Agricultural uses of plant biostimulants (2014, background): “, 2001), Pantoea agglomerans (Riggs et al., 2001), Azotobacter spp.”
• Potential use of rhizobial bacteria as promoters of plant growth for increased yield in landraces of African cereal crops (2004, background): “…diazotrophicus (formerly Acetobacter diazotrophicus) from sugarcane (Cavalcante and Dobereiner, 1988; Gillis et al., 1989; FuentesRamirez et al., 1993; Caballero-Mellado, 1994; James et al., 1994; Sevilla et al., 1998, 2001; Reis et al., 2001; Riggs et al., 2001; Muthukumarasamy et al., 2002).”
• Use of Plant Growth-Promoting Rhizobacteria in Maize and Sugarcane: Characteristics and Applications (2020, background): “The direct mechanism contains the parameters production of phytohormones Cassán et al. (2009) such as auxins (Khalid et al., 2004b); siderophores (Yu et al., 2019); phosphorous solubilization Krey et al. (2013), or nitrogen-fixing (Riggs et al., 2001).”
• Grain Legumes in Northern Great Plains : Impacts on Selected Biological Soil Processes (2007, background): “These endophytic rhizobia and other bacteria have been found to increase yields of nonlegume crops (Biswas et al., 2000; Riggs et al., 2001), but there is no conclusive evidence that the benefits involve symbiotic N2 fixation (James, 2000; Yanni et al.”
• Advances in plant growth-promoting bacterial inoculant technology: formulations and practical perspectives (1998–2013) (2014, methodology): “This happens because the carrier is a major Table 1 (continued) Formulation Additives or treatment Microorganisms used Plant species, or substrate Reference Bacillus pumilus or Phyllobacterium myrsinacearum de-Bashan and Bashan 2004, 2008; Gonzalez and Bashan 2000; Gonzalez-Bashan et al. 2000; Herna”