Plant-borne flavonoids released into the rhizosphere: impact on soil bio-activities related to plant nutrition. A review

Biology and Fertility of Soils - Tập 48 - Trang 123-149 - 2012
S. Cesco1, T. Mimmo2, G. Tonon2, N. Tomasi3, R. Pinton3, R. Terzano4, G. Neumann5, L. Weisskopf6, G. Renella7, L. Landi7, P. Nannipieri7
1Faculty of Science and Technology, Free University of Bozen/Bolzano, Bolzano, Italy
2Faculty of Science and Technology, Free University of Bozen-Bolzano, Bolzano, Italy
3Dipartimento di Scienze Agrarie e Ambientali, University of Udine, Udine, Italy
4Dipartimento di Biologia e Chimica Agro-forestale e Ambientale, University of Bari, Bari, Italy
5Institute of Plant Nutrition, University of Hohenheim, Stuttgart, Germany
6Department of Microbiology, Botanical Institute, University of Zürich, Zürich, Switzerland
7Dipartimento di Scienza del Suolo e Nutrizione della Pianta, University of Firenze, Florence, Italy

Tóm tắt

Plants produce and release in the surrounding soil, the so-called rhizosphere, a vast variety of secondary metabolites. Among them, flavonoids are the most studied, mainly for their role in the establishment of rhizobium–legume symbiosis; on the other hand, some studies highlight that they are also important in the plant strategies to acquire nutrients from the soil, for example, by acting on its chemistry. The scope of this review is to give a quick overview on the types and amounts of plant-released flavonoids in order to focus on their effects on soil activities that in turn can influence nutrient availability and so plant mineral nutrition; emphasis is given to the different nutrient cycles, soil enzyme, and soil bacteria activities, and their influence on soil macrofauna and roots of other plants. Finally, the possible outcome of the climate change on these processes is discussed.

Tài liệu tham khảo

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