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Effect of PGPB Inoculation, Addition of Biochar, and Mineral N Fertilization on Mycorrhizal Colonization

Authors: Irina Mikajlo, Jaroslav Záhora, Helena Dvořáčková, Jaroslav Hynšt, Jakub Elbl


Strong anthropogenic impact has uncontrolled consequences on the nature of the soil. Hence, up-to-date sustainable methods of soil state improvement are essential. Investigators provide the evidence that biochar can positively effects physical, chemical, and biological soil properties and the abundance of mycorrhizal fungi which are in the focus of this study. The main aim of the present investigation is to demonstrate the effect of two types of plant growth promoting bacteria (PGPB) inoculums along with the beech wood biochar and mineral N additives on mycorrhizal colonization. Experiment has been set up in laboratory conditions with containers filled with arable soil from the protection zone of the main water source “Brezova nad Svitavou”. Lactuca sativa (lettuce) has been selected as a model plant. Based on the obtained data, it can be concluded that mycorrhizal colonization increased as the result of combined influence of biochar and PGPB inoculums amendment. In addition, correlation analyses showed that the numbers of main groups of cultivated bacteria were dependent on the degree of mycorrhizal colonization.

Keywords: Biochar, Soil Microorganisms, Arbuscular mycorrhiza, PGPB inoculum

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[1] G. Zalidis, S. Stamatiadis, V. Takavakoglou, K. Eskridge and N. Misopolinos, “Impacts of agricultural practices on soil and water quality in the Mediterranean region and proposed assessment methodology”, Agriculture, Ecosystems and Environment, vol. 88,pp. 137–146, 2002.
[2] J. Lehmann and S. Joseph, Biochar for Environmental Management: Science and Technology London, Sterling, VA, 2009.
[3] M. C. Brundrett, “Coevolution of roots and mycorrhizas of land plants”, New Phytologist, vol. 154, pp. 275–304, 2002.
[4] K. K. Newsham, A. H. Fitter and A.R. Watkinson, “Multi-functionality and biodiversity in arbuscular mycorrhizas”, Trends in Ecology & Evolution, vol. 10, pp. 407–411, 1995.
[5] B. A. Sikes, J. R. Powell and M. C. Rillig, “Deciphering the relative contributions of multiple functions within plant-microbe symbioses”, Ecology, vol. 91, pp. 1591–1597, 2010.
[6] M. Saito and T. Marumoto, “Inoculation with arbuscular mycorrhizal fungi: The status quo in Japan and the future prospects”, Plant and Soil, vol. 244, pp. 273–279, 2002.
[7] K. K. Treseder and A. Cross, “Global distributions of arbuscular mycorrhizal fungi”, Ecosystems, vol. 9, pp. 305–316, 2006.
[8] M. C. Rillig, “Arbuscular mycorrhizae and terrestrial ecosystem processes”, Ecology Letters, vol. 7, pp. 740–754, 2004.
[9] M. W. Schwartz, J. D. Hoeksema, C. A. Gehring, N. C. Johnson, J. N. Klironomos, L. K. Abbott and A. Pringle, “The promise and the potential consequences of the global transport of mycorrhizal fungal inoculum”, Ecology Letters, vol. 9, pp. 501–515, 2006.
[10] D. D. Warnock, J. Lehmann, T. W. Kuyper and M. C. Rillig, “Mycorrhizal responses to biochar in soil – concepts and mechanisms”, Plant and Soil, vol. 300, pp. 9–20, 2007.
[11] T. Ezawa, K. Yamamoto and S. Yoshida, “Enhancement of the effectiveness of indigenous arbuscular mycorrhizal fungi by inorganic soil amendments”, Soil Science and Plant Nutrition, vol. 48, pp. 897– 900, 2002.
[12] J. Garbaye, “Helper bacteria: A new dimension to the mycorrhizal symbiosis”, New Phytologist, vol. 128, pp. 197–210, 1994.
[13] M. C. Rillig and D. L. Mummey, “Mycorrhizas and soil structure”, New Phytologist, vol. 171, pp. 41–53, 2006.
[14] R. E. Koske and J. N. Gemma, “A modified procedure for staining roots to detect VA mycorrhizas”, Mycological Research, vol. 92, pp. 486 – 505, 1989.
[15] M. Saito, “Charcoal as a micro-habitat for VA mycorrhizal fungi and its practical implication”, Agriculture, Ecosystems and Environment, vol. 29, pp. 341–344, 1989.
[16] T. Ishii and K. Kadoya, “Effects of charcoal as a soil conditioner on citrus and vesicular-arbuscular mycorrhizal development”, Journal of the Japanese Society of Horticultural Science, vol. 63, pp. 529–535, 1994.
[17] Y.-I. Matsubara, N. Hasegawa and H. Fukui, “Incidence of Fusarium root rot in asparagus seedlings infected with arbuscular mycorrhizal fungus as affected by several soil amendments”, Journal of the Japanese Society of Horticultural Science, vol. 71, pp. 370–374, 2002.
[18] M. Yamato, Y. Okimori, I. F. Wibowo, S. Anshiori and M. Ogawa, “Effects of the application of charred bark of Acacia mangium on the yield of maize, cowpea and peanut, and soil chemical properties in South Sumatra, Indonesia”, Soil Science and Plant Nutrition, vol. 52, pp. 489– 495, 2006.
[19] N. C. Johnson, G. W. T. Wilson, M. A. Bowker, J. A. Wilson, R. M. Miller, “Resource limitation is a driver of local adaptation in mycorrhizal symbioses”, Proceedings of the National Academy of Sciences USA, vol. 107, pp. 2093–2098, 2010.
[20] D. D. Warnock, J. Lehmann, T. W. Kuyper and M. C. Rillig, “Mycorrhizal response to biochar in soil – concepts and mechanisms”, Plant and Soil, vol. 300, pp. 9–20, 2007.