Enhanced performance of the microalga Chlorella sorokiniana remotely induced by the plant growth-promoting bacteria Azospirillum brasilense and Bacillus pumilus
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Abstract Remote effects (occurring without physical contact) of two plant growth-promoting bacteria (PGPB) Azospirillum brasilense Cd and Bacilus pumilus ES4 on growth of the green microalga Chlorella sorokiniana UTEX 2714 were studied. The two PGPB remotely enhanced the growth of the microalga, up to six-fold, and its cell volume by about three-fold. In addition to phenotypic changes, both bacteria remotely induced increases in the amounts of total lipids, total carbohydrates, and chlorophyll a in the cells of the microalga, indicating an alteration of the microalga’s physiology. The two bacteria produced large amounts of volatile compounds, including CO 2 , and the known plant growth-promoting volatile 2,3-butanediol and acetoin. Several other volatiles having biological functions in other organisms, as well as numerous volatile compounds with undefined biological roles, were detected. Together, these bacteria-derived volatiles can positively affect growth and metabolic parameters in green microalgae without physical attachment of the bacteria to the microalgae. This is a new paradigm on how PGPB promote growth of microalgae which may serve to improve performance of Chlorella spp. for biotechnological applications.
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The MGPB A. brasilense and Bacillus pumilus remotely enhanced microalgal growth as well as lipids, carbohydrates, and chlorophyll a production.
“The MGPB A. brasilense and Bacillus pumilus remotely enhanced microalgal growth as well as lipids, carbohydrates, and chlorophyll a production [42].”
From Toward the Enhancement of Microalgal Metabolite Production through Microalgae–Bacteria Consortia (2021) · cites this paper as [42]
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Cites
A Revised Medium for Rapid Growth and Bio Assays with Tobacco Tissue Cultures
Murashige, T., & Skoog, F. K. (1962) · Physiologia Plantarum · doi:10.1111/j.1399-3054.1962.tb08052.x · Cited by 67,420 · see citing works
A RAPID METHOD OF TOTAL LIPID EXTRACTION AND PURIFICATION
Bligh, E. G., & Dyer, W. J. (1959) · Canadian Journal of Biochemistry and Physiology · doi:10.1139/o59-099 · Cited by 54,751 · see citing works
Colorimetric Method for Determination of Sugars and Related Substances
DuBois, M., Gilles, K. A., Hamilton, J. K., Rebers, P. A., & Smith, F. (1956) · Analytical Chemistry · doi:10.1021/ac60111a017 · Cited by 52,269 · see citing works
A RAPID METHOD OF TOTAL LIPID EXTRACTION AND PURIFICATION
Bligh, E. G., & Dyer, W. J. (1959) · Canadian Journal of Biochemistry and Physiology · doi:10.1139/y59-099 · Cited by 23,189 · see citing works
Bacterial volatiles promote growth in Arabidopsis
Ryu, C., Farag, M. A., Hu, C., Reddy, M. S., Wei, H., Paré, P. W., & Kloepper, J. W. (2003) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0730845100 · Cited by 1,661 · see citing works
Self-citationYoav Bashan, A., de‐Bashan, L. E., Prabhu, S. R., & Hernández, J.-P. (2013) · Plant and Soil · doi:10.1007/s11104-013-1956-x · Cited by 1,475 · see citing works
Self-citationBacterial Volatiles Induce Systemic Resistance in Arabidopsis
Ryu, C.-M., Farag, M. A., Hu, C.-H., Reddy, M. S., Kloepper, J. W., & Paré, P. W. (2004) · PLANT PHYSIOLOGY · doi:10.1104/pp.103.026583 · Cited by 1,308 · see citing works
Self-citationIndole as an intercellular signal in microbial communities
Lee, J.-H., & Lee, J. (2010) · FEMS Microbiology Reviews · doi:10.1111/j.1574-6976.2009.00204.x · Cited by 1,059 · see citing works
Bacterial volatiles: the smell of small organisms
Schulz, S., & Dickschat, J. S. (2007) · Natural Product Reports · doi:10.1039/b507392h · Cited by 901 · see citing works
Promotion of Plant Growth by Bacterial ACC Deaminase
Glick, B. R., Todorovic, B., Czarny, J., Cheng, Z., Duan, J., & McConkey, B. J. (2007) · Critical Reviews in Plant Sciences · doi:10.1080/07352680701572966 · Cited by 894 · see citing works
Immobilized microalgae for removing pollutants: Review of practical aspects
de‐Bashan, L. E., & Yoav Bashan, A. (2009) · Bioresource Technology · doi:10.1016/j.biortech.2009.09.043 · Cited by 788 · see citing works
Self-citationBacterial volatiles and their action potential
Kai, M., Haustein, M., Molina, F., Petri, A., Scholz, B. K., & Piechulla, B. (2008) · Applied Microbiology and Biotechnology · doi:10.1007/s00253-008-1760-3 · Cited by 562 · see citing works
Volatile Mediated Interactions Between Bacteria and Fungi in the Soil
Effmert, U., Kalderás, J., Warnke, R., & Piechulla, B. (2012) · Journal of Chemical Ecology · doi:10.1007/s10886-012-0135-5 · Cited by 526 · see citing works
Rhizobacterial volatile emissions regulate auxin homeostasis and cell expansion in Arabidopsis
Zhang, H., Kim, M.-S., Krishnamachari, V., Payton, P., Sun, Y., Grimson, M., Farag, M. A., Ryu, C.-M., Allen, R., Melo, I. S., et al. (2007) · Planta · doi:10.1007/s00425-007-0530-2 · Cited by 515 · see citing works
Self-citationmVOC: a database of microbial volatiles
Lemfack, M. C., Nickel, J., Dunkel, M., et al. (2013) · Nucleic Acids Research · doi:10.1093/nar/gkt1250 · Cited by 480 · see citing works
Blom, D., Fabbri, C., Connor, E. C., Schiestl, F. P., Klauser, D., Böller, T., Eberl, L., & Weisskopf, L. (2011) · Environmental Microbiology · doi:10.1111/j.1462-2920.2011.02582.x · Cited by 380 · see citing works
Gonzalez, L. E., Cañizares, R., & Baena, S. (1997) · Bioresource Technology · doi:10.1016/s0960-8524(97)00029-1 · Cited by 369 · see citing works
Farag, M. A., Ryu, C., Sumner, L. W., & Paré, P. W. (2006) · Phytochemistry · doi:10.1016/j.phytochem.2006.07.021 · Cited by 360 · see citing works
Self-citationGonzalez, L. E., & Bashan, Y. (2000) · Applied and Environmental Microbiology · doi:10.1128/aem.66.4.1527-1531.2000 · Cited by 304 · see citing works
Self-citationFarag, M. A., Zhang, H., & Ryu, C. (2013) · Journal of Chemical Ecology · doi:10.1007/s10886-013-0317-9 · Cited by 287 · see citing works
Self-citationDiffusible signals and interspecies communication in bacteria
Ryan, R. P., & Dow, J. M. (2008) · Microbiology · doi:10.1099/mic.0.2008/017871-0 · Cited by 284 · see citing works
Ponnusamy, L., Xu, N., Nojima, S., Wesson, D. M., Schal, C., & Apperson, C. S. (2008) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0802505105 · Cited by 244 · see citing works
Perez‐Garcia, O., & Yoav Bashan, A. (2015) · Springer eBooks · doi:10.1007/978-3-319-20200-6_3 · Cited by 239 · see citing works
Han, S. H., Lee, S. J., Moon, J. H., Park, K. H., Yang, K. Y., Cho, B. H., Kim, K. Y., Kim, Y. W., Lee, M. C., Anderson, A. J., et al. (2006) · Molecular Plant-Microbe Interactions · doi:10.1094/mpmi-19-0924 · Cited by 238 · see citing works
Azospirillum Genomes Reveal Transition of Bacteria from Aquatic to Terrestrial Environments
Wisniewski‐Dyé, F., Borziak, K., Khalsa-Moyers, G., Alexandre, G. M., Sukharnikov, L. O., Wuichet, K., Hurst, G. B., McDonald, W. H., Robertson, J. S., Barbe, V., et al. (2011) · PLoS Genetics · doi:10.1371/journal.pgen.1002430 · Cited by 238 · see citing works
The modulating effect of bacterial volatiles on plant growth
Bailly, A., & Weisskopf, L. (2012) · Plant Signaling & Behavior · doi:10.4161/psb.7.1.18418 · Cited by 234 · see citing works
Covarrubias, S. A., de‐Bashan, L. E., Moreno, M., & Yoav Bashan, A. (2011) · Applied Microbiology and Biotechnology · doi:10.1007/s00253-011-3585-8 · Cited by 232 · see citing works
Self-citationde-Bashan, L. E., Bashan, Y., Moreno, M., Lebsky, V. K., & Bustillos, J. J. (2002) · Canadian Journal of Microbiology · doi:10.1139/w02-051 · Cited by 222 · see citing works
Self-citationde‐Bashan, L. E., Antoun, H., & Bashan, Y. (2008) · Journal of Phycology · doi:10.1111/j.1529-8817.2008.00533.x · Cited by 214 · see citing works
Self-citationVolatile Organic Compounds and Microorganisms
Stotzky, G., Schenck, S., & Papavizas, G. C. (1976) · CRC Critical Reviews in Microbiology · doi:10.3109/10408417609102303 · Cited by 200 · see citing works
Microdetermination of lipids and serum total fatty acids
Pande, S. V., Khan, R. P., & Venkitasubramanian, T. A. (1963) · Analytical Biochemistry · doi:10.1016/0003-2697(63)90094-0 · Cited by 185 · see citing works
Hernández, J.-P., de‐Bashan, L. E., Rodríguez, D., Rodríguez, Y., & Yoav Bashan, A. (2008) · European Journal of Soil Biology · doi:10.1016/j.ejsobi.2008.08.004 · Cited by 181 · see citing works
Self-citationAcetate metabolism by Escherichia coli in high-cell-density fermentation
Kleman, G. L., & Strohl, W. R. (1994) · Applied and Environmental Microbiology · doi:10.1128/aem.60.11.3952-3958.1994 · Cited by 175 · see citing works
Santoro, M. V., Zygadlo, J. A., Giordano, W. F., & Banchio, E. (2011) · Plant Physiology and Biochemistry · doi:10.1016/j.plaphy.2011.07.016 · Cited by 175 · see citing works
Two different modes of attachment of Azospirillum brasilense Sp7 to wheat roots
Michiels, C. W., Croes, C., & Vanderleyden, J. (1991) · Journal of General Microbiology · doi:10.1099/00221287-137-9-2241 · Cited by 174 · see citing works
Phenethyl Alcohol and Tryptophol: Autoantibiotics Produced by the Fungus Candida albicans
Lingappa, B. T., Prasad, M., Lingappa, Y., et al. (1969) · Science · doi:10.1126/science.163.3863.192 · Cited by 172 · see citing works
Yang, Y., & Gao, K. (2003) · Journal of Applied Phycology · doi:10.1023/a:1026021021774 · Cited by 171 · see citing works
Assessment of affinity and specificity of Azospirillum for plants
Pereg, L. L., de‐Bashan, L. E., & Yoav Bashan, A. (2015) · Plant and Soil · doi:10.1007/s11104-015-2778-9 · Cited by 156 · see citing works
Self-citationVelázquez-Becerra, C., Macías‐Rodríguez, L., López‐Bucio, J., Altamirano-Hernández, J., Flores-Cortéz, I., & Valencia‐Cantero, E. (2010) · Plant and Soil · doi:10.1007/s11104-010-0583-z · Cited by 141 · see citing works
Choix, F. J., de-Bashan, L. E., & Bashan, Y. (2012) · Enzyme and Microbial Technology · doi:10.1016/j.enzmictec.2012.07.012 · Cited by 133 · see citing works
Self-citationPlant growth promotion due to rhizobacterial volatiles – An effect of CO2?
Kai, M., & Piechulla, B. (2009) · FEBS Letters · doi:10.1016/j.febslet.2009.09.053 · Cited by 132 · see citing works
Alpha terpineol: a potential anticancer agent which acts through suppressing NF-kappaB signalling.
Hassan, S. B., Gali‐Muhtasib, H. U., Göransson, H., & Larsson, R. L. (2010) · PubMed · Cited by 130 · see citing works
de‐Bashan, L. E., Hernández, J.-P., Bashan, Y., et al. (2010) · Environmental and Experimental Botany · doi:10.1016/j.envexpbot.2010.04.014 · Cited by 99 · see citing works
Self-citationEnvironmental Stress Physiology
Vonshak, A., & Torzillo, G. (2003) · doi:10.1002/9780470995280.ch4 · Cited by 98 · see citing works
Chemical Defense in the Stink Bug Cosmopepla bimaculata
Krall, B. S., Bartelt, R. J., Lewis, C. J., et al. (1999) · Journal of Chemical Ecology · doi:10.1023/a:1020822107806 · Cited by 93 · see citing works
de‐Bashan, L. E., Hani Antoun, A., & Yoav Bashan, A. (2005) · FEMS Microbiology Ecology · doi:10.1016/j.femsec.2005.03.014 · Cited by 92 · see citing works
Self-citationHiggins, B. T., & VanderGheynst, J. S. (2014) · PLoS ONE · doi:10.1371/journal.pone.0096807 · Cited by 89 · see citing works
Root surface colonization of non-cereal crop plants by pleomorphic Azospirillum brasilense Cd
Bashan, Y., Levanony, H., & Whitmoyer, R. E. (1991) · Microbiology · doi:10.1099/00221287-137-1-187 · Cited by 89 · see citing works
Self-citationFarag, M. A., Rasheed, D. M., & Kamal, I. M. (2015) · Food Research International · doi:10.1016/j.foodres.2015.09.024 · Cited by 88 · see citing works
Self-citationde‐Bashan, L. E., & Yoav Bashan, A. (2008) · Applied and Environmental Microbiology · doi:10.1128/aem.00518-08 · Cited by 85 · see citing works
Self-citationde-Bashan, L. E., Mayali, X., Bebout, B. M., Weber, P. K., Detweiler, A. M., Hernandez, J. P., Prufert-Bebout, L., & Bashan, Y. (2016) · Algal Research · doi:10.1016/j.algal.2016.02.019 · Cited by 79 · see citing works
Self-citationLevanony, H., Bashan, Y., Romano, B., et al. (1989) · Plant and Soil · doi:10.1007/bf02220714 · Cited by 77 · see citing works
Self-citationEzquer, I., Li, J., Ovečka, M., Baroja‐Fernández, E., Muñoz, F. J., Montero, M., de Cerio, J. D., Hidalgo, M., Sesma, M. T., Bahaji, A., et al. (2010) · Plant and Cell Physiology · doi:10.1093/pcp/pcq126 · Cited by 77 · see citing works
Puente, M. E., Holguín, G., Glick, B. R., et al. (1999) · FEMS Microbiology Ecology · doi:10.1111/j.1574-6941.1999.tb00619.x · Cited by 75 · see citing works
Bashan, Y., & Levanony, H. (1987) · Microbiology · doi:10.1099/00221287-133-12-3473 · Cited by 74 · see citing works
Self-citationChoix, F. J., de-Bashan, L. E., & Bashan, Y. (2012) · Enzyme and Microbial Technology · doi:10.1016/j.enzmictec.2012.07.013 · Cited by 72 · see citing works
Self-citationFarag, M. A., & Wessjohann, L. A. (2012) · Journal of Food Science · doi:10.1111/j.1750-3841.2012.02927.x · Cited by 70 · see citing works
Self-citationBashan, Y., Trejo, A., & de‐Bashan, L. E. (2011) · Biology and Fertility of Soils · doi:10.1007/s00374-011-0555-3 · Cited by 69 · see citing works
Self-citationde‐Bashan, L. E., Schmid, M., Rothballer, M., Hartmann, A., & Yoav Bashan, A. (2011) · Journal of Phycology · doi:10.1111/j.1529-8817.2011.01062.x · Cited by 64 · see citing works
Self-citationMechanism of Algal Aggregation by Bacillus sp. Strain RP1137
Powell, R. J., & Hill, R. T. (2014) · Applied and Environmental Microbiology · doi:10.1128/aem.00887-14 · Cited by 63 · see citing works
Evidence for a Weak Active External Adsorption of Azospirillum brasilense Cd to Wheat Roots
Bashan, Y., Levanony, H., & Klein, E. (1986) · Microbiology · doi:10.1099/00221287-132-11-3069 · Cited by 62 · see citing works
Self-citationMeza, B., de-Bashan, L. E., & Bashan, Y. (2015) · Research in Microbiology · doi:10.1016/j.resmic.2014.12.010 · Cited by 61 · see citing works
Self-citationDoleschall, F., Recseg, K., Kemény, Z., et al. (2003) · European Journal of Lipid Science and Technology · doi:10.1002/ejlt.200390070 · Cited by 60 · see citing works
Leyva, L. A., Yoav Bashan, A., Mendoza, A., & de‐Bashan, L. E. (2014) · Die Naturwissenschaften · doi:10.1007/s00114-014-1223-x · Cited by 57 · see citing works
Self-citationChoix, F. J., Bashan, Y., Mendoza, A., & de-Bashan, L. E. (2014) · Journal of Biotechnology · doi:10.1016/j.jbiotec.2014.02.014 · Cited by 56 · see citing works
Self-citationSaïd, I., Renou, M., Morin, J., et al. (2005) · Journal of Chemical Ecology · doi:10.1007/s10886-005-5927-4 · Cited by 50 · see citing works
Impact of volatiles of the rhizobacteriaSerratia odoriferaon the mossPhyscomitrella patens
Kai, M., & Piechulla, B. (2010) · Plant Signaling & Behavior · doi:10.4161/psb.5.4.11340 · Cited by 49 · see citing works
Farag, M. A. (2014) · Recent Patents on Biotechnology · doi:10.2174/1389201014666131218125035 · Cited by 45 · see citing works
Self-citationViegas, C. A. (1997) · International Journal of Food Microbiology · doi:10.1016/s0168-1605(96)01200-7 · Cited by 35 · see citing works
Yoav Bashan, A., López, B. R., Huss, V. A. R., Amavizca, E., & de‐Bashan, L. E. (2015) · Journal of Applied Phycology · doi:10.1007/s10811-015-0571-z · Cited by 31 · see citing works
Self-citationAdsorption and anchoring of Azospirillumstrains to roots of wheat seedlings
Pinheiro, R. D., Boddey, L. H., James, E. K., et al. (2002) · Plant and Soil · doi:10.1023/a:1020645203084 · Cited by 30 · see citing works
Growth Promotion of Tobacco Plant by 3-hydroxy-2-Butanone from Bacillus vallismortis EXTN-1
Ann, M., Cho, Y. E., Ryu, H. J., Kim, H. T., & Park, K. (2013) · The Korean Journal of Pesticide Science · doi:10.7585/kjps.2013.17.4.388 · Cited by 26 · see citing works
Ammonia causes necrosis in tomato leaves infected with Pseudomonas tomato (Okabe) Alstatt
Bashan, Y., Okon, Y., & Henis, Y. (1980) · Physiological Plant Pathology · doi:10.1016/0048-4059(80)90012-0 · Cited by 26 · see citing works
Self-citationWalker, V., Bruto, M., Bellvert, F., et al. (2013) · Molecular Plant-Microbe Interactions · doi:10.1094/mpmi-12-12-0298-r · Cited by 25 · see citing works
Molecular features of a defined genetic marker for the determination of the Porphyra tenera lineage
Kunimoto, M., Kito, H., Mizukami, Y., et al. (2003) · Journal of Applied Phycology · doi:10.1023/a:1025182508440 · Cited by 22 · see citing works
de‐Bashan, L. E., Hernández, J.-P., & Yoav Bashan, A. (2015) · Springer eBooks · doi:10.1007/978-3-319-06542-7_20 · Cited by 18 · see citing works
Self-citationOn the natural occurrence of (−)-3-carene, a component of termite defense secretions
Valterová, I., Vrkoč, J., Lindström, M., et al. (1992) · Die Naturwissenschaften · doi:10.1007/bf01138574 · Cited by 10 · see citing works
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- Authors
- Amavizca, E., Bashan, Y., Ryu, C.-M., Farag, M. A., Bebout, B. M., & de-Bashan, L. E.
- Affiliations
- Centro de Investigaciones Biológicas del Noroeste S.C. (MX)
- Korea Research Institute of Bioscience and Biotechnology (KR)
- Cairo University (EG)
- Ames Research Center (US)
- Venue
- Scientific Reports
- Published
- 2017-02-01
- Volume
- 7
- Issue
- 1
- Pages
- 41310-41310
- ISSN
- 2045-2322 (ISSN-L)
- PMC
- PMC5286510
- OpenAlex
- W2584642022
- Cited by
- 119
- References
- 77
- Citations by year
- 2026: 6 · 2025: 14 · 2024: 11 · 2023: 14 · 2022: 13 · 2021: 15 · 2020: 17 · 2019: 17 · 2018: 11 · 2017: 1
- FWCI
- 12.39
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Scientific Reports (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
- KRIBB Repository (submittedVersion)
- Funders
- National Aeronautics and Space Administration
- Alexander von Humboldt-Stiftung
- Auburn University
- Consejo Nacional de Ciencia y Tecnología (251102)
- Rural Development Administration (PJ009524)
- Korea Research Institute of Bioscience and Biotechnology
- Ames Research Center
- Centro de Investigaciones Biológicas del Noroeste
- Topics
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant-Microbe Interactions and Immunity
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
- Keywords
- Chlorella sorokiniana, plant growth-promoting bacteria, Azospirillum brasilense, Bacillus pumilus, bacterial volatile compounds, 2,3-butanediol, acetoin, carbon dioxide, microalgal lipid content, chlorophyll a, cell volume
- MeSH terms
- Bacillus pumilus, Chlorophyll A, Carbon Dioxide, Chlorella, Chlorophyll, Escherichia coli, Azospirillum brasilense, Carbohydrate Metabolism, Lipid Metabolism, Volatile Organic Compounds, Microalgae
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