Azospirillum-plant relationships: physiological, molecular, agricultural, and environmental advances (1997-2003)
Top Cited Papers
- 1 August 2004
- journal article
- review article
- Published by Canadian Science Publishing in Canadian Journal of Microbiology
- Vol. 50 (8), 521-577
- https://doi.org/10.1139/w04-035
Abstract
This review presents a critical and comprehensive documentation and analysis of the developments in agricultural, environmental, molecular, and physiological studies related to Azospirillum cells, and to Azospirillum interactions with plants, based solely on information published between 1997 and 2003. It was designed as an update of previous reviews (Bashan and Levanony 1990; Bashan and Holguin 1997a), with a similar scope of interest. Apart from an update and critical analysis of the current knowledge, this review focuses on the central issues of Azospirillum research today, such as, (i) physiological and molecular studies as a general model for rhizosphere bacteria; (ii) co-inoculation with other microorganisms; (iii) hormonal studies and re-consideration of the nitrogen contribution by the bacteria under specific environmental conditions; (iv) proposed Azospirillum as a non-specific plant-growth-promoting bacterium; (v) re-introduction of the "Additive Hypothesis," which suggests involvement of multiple mechanisms employed by the bacteria to affect plant growth; (vi) comment on the less researched areas, such as inoculant and pesticide research; and (vii) proposes possible avenues for the exploitation of this bacterium in environmental areas other than agriculture.Key words: Azospirillum, plant–bacteria interaction, plant-growth-promoting bacteria, PGPB, PGPR, rhizosphere bacteria.Keywords
This publication has 226 references indexed in Scilit:
- Purification of the Major Outer Membrane Protein ofAzospirillum brasilense, Its Affinity to Plant Roots, and Its Involvement in Cell AggregationMolecular Plant-Microbe Interactions®, 2001
- Role of edaphic factors in the development of downy mildew (Sclerospora graminicola) in pearl milletThe Journal of Agricultural Science, 1999
- Improved establishment and development of three cactus species inoculated withAzospirillum brasilensetransplanted into disturbed urban desert soilCanadian Journal of Microbiology, 1999
- Initiation of root growth stimulation by Azospirillum lipoferum CRT1 during maize seed germinationCanadian Journal of Microbiology, 1999
- Saline stress affects the attachment ofAzospirillum brasilenseCd to maize and wheat rootsCanadian Journal of Microbiology, 1998
- Effect of Seed Soaking on Seedling Vigour, Growth and Yield of RiceJournal of Agronomy and Crop Science, 1998
- Differences in chemical composition between nonflocculated and flocculated Azospirillum brasilense CdCanadian Journal of Microbiology, 1998
- A Transcriptional Regulator of the LuxR-UhpA Family, FlcA, Controls Flocculation and Wheat Root Surface Colonization by Azospirillum brasilense Sp7Molecular Plant-Microbe Interactions®, 1998
- Effects of 2,4-D and Azospirillum brasilense on Nitrogen Fixation, photosynthesis and Grain Yield in WheatJournal of Agronomy and Crop Science, 1997
- Oxygen Sensitivity of NifA Protein of Azospirillum lipoferum FS as Suggested by Gene Cloning and Expression in Escherichia coliBioscience, Biotechnology, and Biochemistry, 1997