Abstract
A high molecular weight humic fraction (>3,500 Da) was characterized chemically by DRIFT and 1H NMR spectroscopy, and was applied to Zea mays L. plants to evaluate its effect on phenylpropanoid metabolism. The activity and gene expression of phenylalanine (tyrosine) ammonia-lyase (PAL/TAL), and the concentrations of phenolics and their amino acid precursors phenylalanine and tyrosine were assayed. Maximum induction of PAL/TAL activity and expression was obtained when the concentration of added humic substance was 1 mg C/l hydroponic solution. Phenylalanine and tyrosine significantly decreased (−16% and −22%, respectively), and phenolic compounds increased in treated plants. The effects of the humic substance could be ascribed partly to indoleacetic acid (27 nmol/mg C) in the humic fraction. Our results suggest that this humic fraction induces changes in phenylpropanoid metabolism. This is the first study that shows a relationship between humic substances and the phenylpropanoid pathway.
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Andersen, J. R., Zein, I., Wenzel, G., Krützfeldt, B., Eder, J., Ouzunova, M., and Lübberstedt, T. 2007. High levels of linkage disequilibrium and associations with forage quality at a phenylalanine ammonia-lyase locus in European maize (Zea mays L.) inbreds. Theor. Appl. Genet. 114:307–319.
Arnaldos, T. L., Muñoz, R., Ferrer, M. A., and Calderón, A. A. 2001. Changes in phenol content during strawberry (Fragaria ananassa, cv. Chandler) callus culture. Physiol. Plantarum 113:315–322.
Bradford, M. M. 1976. A rapid and sensitive method for the quantification of microgram quantities of protein utilizing the principle of protein-dye binding. Anal. Biochem. 72:248–254.
Buer, C. S., and Muday, G. K. 2004. The transparent testa4 mutation prevents flavonoid synthesis and alters auxin transport and the response of Arabidopsis roots to gravity and light. The Plant Cell. 16:1191–1205.
Canellas, L. P., Olivares, F. L., Okorokova-Façanha, A. L., and Façanha, A. R. 2002. Humic acids isolated from earthworm compost enhance root elongation, lateral root emergence, and plasma membrane H + -ATPase activity in maize roots. Plant Physiol. 130:1951–1957.
Canellas, L. P., Teixeira Junior, L. R. L., Dobbss, L. B., Silva, C. A., Medici, L. O., Zandonadi, D. B., and Façanha, A. R. 2008. Humic acids crossinteractions with root and organic acids. Ann. Appl. Biol. 153:157–166.
Canellas, L. P., Piccolo, A., Dobbss, L. B., Spaccini, R., Olivares, F. L., Zandonadi, D. B., and Façanha, A. R. 2010. Chemical composition and bioactivity properties of size-fractions separated from a vermicompost humic acid. Chemosphere 78:457–466.
Cánovas, F. M., Cantón, F. R., Gallardo, F., Garcia-Gutierrez, A., and De Vicente, A. 1991. Accumulation of glutamine synthetase during early development of maritime pine (Pinus pinaster) seedlings. Planta 185:372–378.
Cavani, L., Ter Halle, A., Richard, C., and Ciavatta, C. 2006. Photo-sensitizing properties of protein hydrolysates-based fertilizers. J. Agric. Food Chem. 54:9160–9167.
Dixon, R. A., and Paiva, N. L. 1995. Stress-induced phenylpropanoid metabolism. The Plant Cell 7:1085–1097.
Eyheraguibel, B., Silvestre, J., and Morard, P. 2008. Effects of humic substances derived from organic waste enhancement on the growth and mineral nutrition of maize. Bioresour. Technol. 99:4206–4212.
Fan, T. W. M. 1996. Metabolite profiling by one- and two-dimensional NMR analysis of complex mixtures. Prog. Nucl. Mag. Res. Sp. 28:161–219.
Fao–Issds, 1999. World Reference Base for Soil Resources. Istituto Sperimentale per lo Studio e la Difesa del Suolo, Firenze, Italy.
Hoagland, D. R., and Arnon, D. 1950. The water culture method for growing plants without soil. Agricultural Experimental Station Circular 347. University of California, CA.
Kaufmann iii, G. L., Kneivel, D., and Watschke, T. L. 2007. Effects of a biostimulant on the heat tolerance associated with photosynthetic capacity, membrane thermostability, and polyphenol production of perennial ryegrass. Crop Sci. 47:261–267.
Kim, H. J., Fonseca, J. M., Choi, J. H., and Kubota, C. 2007. Effect of methyl jasmonate on phenolic compounds and carotenoids of romaine lettuce (Lactuca sativa L.). J. Agric. Food Chem. 55:10366–10372.
Le Floch, G., Rey, P., Benizri, E., Benhamou, N., and Tirilly, Y. 2003. Impact of auxin-compounds produced by the antagonistic fungus Pythium oligandrum or the minor pathogen Pythium group F on plant growth. Plant Soil 257:459–470.
Lewis, D., Muday, R., and Gloria, K. 2008. The phenylpropanoid pathway is differentially induced by auxin and ethylene, pp. 125, in J. Friesner, X. Chen, J. Kieber, C. Chang, G. Haughn, S. Poethig, J. Schroeder, T. Western, and H. Zheng (eds.). Proceedings of the 19th International Conference on Arabidopsis Research. The North American Arabidopsis Steering Committee, Montreal, Canada.
Maggioni, A., and Renosto, F. 1980. Profilo amminoacidico e valore nutritivo della proteina di Agaricus bisporus (Lange) Fing. e di Agaricus botorquis (Quélet) Saccardo. Agricoltura Italiana 109:237–246.
Meenakshi, S., Manicka Gnanambigai, D., Tamil Mozhi, S., Arumugam, M., and Balasubramanian, T. 2009. Total flavanoid and in vitro antioxidant activity of two seaweeds of Rameshwaram Coast. Glob. J. Pharmacol. 3:59–62.
Mori, T., Sakurai, M., and Sakuta, M. 2001. Effects of conditioned medium on activities of PAL, CHS, DAHP synthase (DS-Co and DS-Mn) and anthocyanin production in suspension cultures of Fragaria ananassa. Plant Sci. 160:355–360.
Muscolo, A., Sidari, M., Attinà, E., Francioso, O., Tugnoli, V., and Nardi, S. 2007. Biological activity of humic substances is related to their chemical structure. Soil Sci. Soc. Am. J. 71:75–85.
Nardi, S., Tosoni, M., Pizzeghello, D., Provenzano, M. R., Cilenti, A., Sturaro, A., Rella, R., and Vianello, A. 2005. Chemical characteristics and biological activity of organic substances extracted from soils by root exudates. Soil Sci. Soc. Am. J. 69:2012–2019.
Nardi, S., Muscolo, A., Vaccaro, S., Baiano, S., Spaccini, R., and Piccolo, A. 2007. Relationship between molecular characteristics of soil humic fractions and glycolytic pathway and Krebs cycle in maize seedlings. Soil Biol. Biochem. 39:3138–3146.
Nardi, S., Carletti, P., Pizzeghello, D., and Muscolo, A. 2009. Biological activities of humic substances, pp. 305–339, in N. Senesi, B. Xing, and P. M. Huang (eds.). Volume 2-Biophysico-Chemical Processes Involving Natural Nonliving Organic Matter in Environmental Systems. PART I. Fundamentals and impact of mineral-organic-biota interactions on the formation, transformation, turnover, and storage of natural nonliving organic matter (NOM). John Wiley & Sons, Hoboken, New Jersey.
Niemeyer, J., Chen, Y., and Bollag, J. M. 1992. Characterization of humic acids, composts, and peat by diffuse reflectance Fourier-transform infrared spectroscopy. Soil Sci. Soc. Am. J. 56:135–140.
Peer, W. A., and Murphy, A. S. 2007. Flavonoids and auxin transport: modulators or regulators? Trends Plant Sci. 12:556–563.
Piccolo, A. 2002. The supramolecular structure of humic substances: A novel understanding of humus chemistry and implications in soil science. Adv. Agron. 75:57–134.
Quaggiotti, S., Ruperti, B., Pizzeghello, D., Francioso, O., Tugnoli, V., and Nardi, S. 2004. Effect of low molecular size humic substances on nitrate uptake and expression of genes involved in nitrate transport in maize (Zea mays L.). J. Exp. Bot. 55:803–13.
Rösler, J., Krekel, F., Amrhein, N., and Schmid, J. 1997. Maize phenylalanine ammonia-lyase has tyrosine ammonia-lyase activity. Plant Physiol. 113:175–9.
Russell, L., Stokes, A. R., Macdonald, H., Muscolo, A., and Nardi, S. 2006. Stomatal responses to humic substances and auxin are sensitive to inhibitors of phospholipase A2. Plant Soil 283:175–185.
Schiavon, M., Ertani, A., and Nardi, S. 2008. Effects of an alfalfa protein hydrolysate on the gene expression and activity of enzymes of the tricarboxylic acid (TCA) cycle and nitrogen metabolism in Zea mays L. J. Agric. Food Chem. 6:11800–11808.
Shinya, T., Gális, I., Narisawa, T., Sasaki, M., Fukuda, H., Matsuoka, H., Saito, M., and Matsuoka, K. 2007. Comprehensive analysis of glucan elicitor-regulated gene expression in tobacco BY-2 cells reveals a novel MYB transcription factor involved in the regulation of phenylpropanoid metabolism. Plant Cell Physiol. 48:1404–1413.
Schweizer, P., and Erismann, K. H. 1985. Effect of nitrate and ammonium nutrition of nonnodulated Phaseolus vulgaris L. on phosphoenolpyruvate carboxylase and pyruvate kinase activity. Plant Physiol. 78:455–458.
Sokal, R. R., and Rohlf, F. J. 1969. Biometry. 1st ed. W.H. Freeman, San Francisco.
Stevenson, F. J. 1994. Humus Chemistry: Genesis, Composition, Reactions. John Wiley and Sons, New York.
Trevisan, S., Pizzeghello, D., Reperti, B., Francioso, O., Sassi, A., Palme, K., Quaggiotti, S., and Nardi, S. 2009. Humic substances induce lateral root formation and expression of the early auxin-responsive IAA19 gene and DR5 synthetic element in Arabidopsis. Plant Biology in press, 2010.
Visser, S. A. 1983. Applications of Van krevelen’s graphical-statistical method for the study of aquatic humic material. Environ. Sci. Technol. 17:412–417.
Zancani, M., Petrussa, E., Krajñáková, J., Casolo, V., Spaccini, R., Piccolo, A., Macrì, F., and Vianello, A. 2009. Effect of humic acids on phosphate level and energetic metabolism of tobacco BY-2 suspension cell cultures. Environ. Exp. Bot. 65:287–295.
Zandonadi, D. B., Canellas, L. P., and Façanha, A. R. 2007. Indolacetic and humic acids induce lateral root development through a concerted plasmalemma and tonoplast H + pumps activation. Planta 225:1583–1595.
Acknowledgements
This work was partially supported by a grant from the University of Padova (ex 60%, 2008) awarded to Prof. Serenella Nardi. We are grateful to Dr. Andrea Ertani and Dr. Sara Trevisan for their helpful assistance. The authors would like to thank Professor Ann E. Hagerman for her precious help in the improvement of the manuscript.
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Schiavon, M., Pizzeghello, D., Muscolo, A. et al. High Molecular Size Humic Substances Enhance Phenylpropanoid Metabolism in Maize (Zea mays L.). J Chem Ecol 36, 662–669 (2010). https://doi.org/10.1007/s10886-010-9790-6
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DOI: https://doi.org/10.1007/s10886-010-9790-6