Profesor Titular de Universidad

Mi línea de investigación principal se centra en la Alelopatía, es decir, los efectos (negativos o positivos) que las plantas ejercen sobre otros organismos (fundamentalmente otras plantas y también microorganismos) a través de la liberación de sustancias químicas al medio en el que viven. Me interesan especialmente los efectos alelopáticos producidos por especies forestales, y en concreto aquellas que han sido introducidas en Galicia con fines comerciales y/u ornamentales, como el eucalipto y la acacia de madera negra.

Otra línea de investigación, más reciente, se refiere al estudio de los mecanismos de resistencia del maíz frente al ataque de la plaga del taladro (Sesamia nonagrioides) y al hongo Fusarium. Este trabajo lo desarrollamos en colaboración con el equipo de la Misión Biológica de Galicia (CSIC) de Pontevedra.

Algunos ejemplos de trabajos recientemente publicados:

• López-Malvar A, Santiago R, Souto XC, Barros-Rios J, Gómez LD, Malvar RA (2022). Cell wall composition impacts structural characteristics of the stems and thereby biomass yield. Journal of Agricultural and Food Chemistry 2022, 70, 27, 8511 (https://doi.org/10.1021/acs.jafc.2c04380). Es una modificación del artículo original Cell wall composition impacts structural characteristics of the stems and thereby the biomass yield. López-Malvar A, Santiago R, Souto XC, Malvar RA 2022, Journal of Agricultural and Food Chemistry 2022, 70 (10), 3136-3141 (DOI: 10.1021/acs.jafc.1c06986).
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• López-Malvar A, Malvar RA, Butrón A, Revilla P, Jiménez-Galindo JC, Souto XC, Santiago R. (2022). Identification of single nucleotide polymorphisms (SNPs) for maize cell wall hydroxycinnamates using a multi-parent advanced generation intercross (MAGIC) population. Phytochemistry 193 (https://doi.org/10.1016/j.phytochem.2021.113002).
  
• Puig CG, Valencia-Gredilla F, Pardo-Muras, M, Souto XC, Recasens J, Pedrol N (2021). Predictive phytotoxic value of water-soluble allelochemicals in plant extracts for choosing a cover crop or mulch for specific weed control. Italian Journal of Agronomy 16:1872 (doi:10.4081/ija.2021.1872).
• Chehade LA, Puig CG, Souto XC, Antichi D, Mazzoncini M, Pedrol N (2021). Rye (Secale cereale L.) and squarrose clover (Trifolium squarrosum L.) cover crops can increase their allelopathic potential for weed control when used mixed as dead mulch. Italian Journal of Agronomy 16:1869 (doi:10.4081/ija.2021.1839).
  
  
• López‑Malvar A, Malvar RA, Souto XC, Gomez LD, Simister R, Encina A, Barros‑Rios J, Pereira‑Crespo S and Santiago R. (2021). Elucidating the multifunctional role of the cell wall components in the maize exploitation. BMC Plant Biol 21:251. (https://doi.org/10.1186/s12870-021-03040-3).
  
• Pardo-Muras M, Puig CG, Souto XC, Pedrol N (2020). Water-soluble phenolic acids and flavonoids involved in the bioherbicidal potential of Ulex europaeus and Cytisus scoparius. South African Journal of Botany 133: 201-211 (https://doi.org/10.1016/j.sajb.2020.07.023).
  
• Santiago R, López-Malvar A, Souto C y Barros-Rios J (2018). Methods for determining cell wall-bound phenolics in maize stem tissues. Journal of Agricultural and Food Chemistry 66, pp 1279-1284. (DOI:10.1021/acs.jafc.7b05752).
• López-Malvar A, Ordás B, Souto C, Encina A, Malvar RA y Santiago R (2017). Chemical changes during maize tissue aging and its relationship with mediterranean corn borer resistance. Journal of Agricultural and Food Chemistry 65 (42), pp 9180–9185. (DOI:10.1021/acs.jafc.7b02911).

• Cao A, Santiago R, Ramos A, Souto XC, Aguín O, Malvar RA y Butrón A (2014). Critical environmental and fenotypic factors for Fusarium verticillioides infection, fungal growth and fumonisin contamination in maize grown in northwestern Spain. International Journal of Food Microbiology 177: 63-71.

• Cao A, Butrón A, Ramos A, Marín S, Souto XC y Santiago R (2014). Assesing white maize resistance to fumonisin contamination. European Journal of Plant Pathology 138: 283-292. (DOI 10.1007/s10658-013-0328-y)

• Cao A, Reid LM, Butrón A, Malvar RA, Souto XC y Santiago R (2011). Role of hydroxycinnamic acids in the infection of maize silks by Fusarium graminearum Schwabe. Molecular Plant-Microbe Interactions 24(9): 1020-1026.

• Hussain MI, Gonzalez L, Souto XC and Reigosa MJ (2011). Ecophysiological responses of three native herbs to phytotoxic potential of invasive Acacia melanoxylon R.Br. Agroforestry Systems 83: 149-166.

• Santiago R, Butrón A, Reid LM, Arnason JT, Sandoya G, Souto XC y Malvar RA (2006). Diferulate content of maize sheaths is associated with resistance to the Mediterranean Corn Borer Sesamia nonagrioides (Lepidoptera: Noctuidae). Journal of Agricultural and Food Chemistry, 54: 9140-9144.

• Santiago R,  Souto XC, Monetti L, Ordas B, Ordas A,  Malvar RA (2006). Effect of maize pith free phenols on larval growth and development of Sesamia nonagrioides (Lepidoptera:Noctuidae). Journal of Entomology 3(4):281-289.

• Santiago R, Butrón A, Arnason JT, Reid LM, Souto XC y Malvar RA (2006). Putative role of pith cell wall phenylpropanoids in Sesamia nonagrioides (Lepidoptera: Noctuidae) resistance. Journal of Agricultural and Food Chemistry, 54(6): 2274-2279.

• Santiago R, Malvar RA,Baamonde MD, Revilla P y Souto XC (2005). Free Phenols in Maize Pith and their Relation with Resistance to Pink Stem Borer (Lepidoptera: Noctuidae) Attack. Journal of Economic Entomology, 98(4): 1349-1356.

• Souto XC (2004). Factores que afectan a la productividad en ecosistemas forestales. En el libro "La ecofisiología vegetal. Una ciencia de síntesis", Editores: Reigosa MJ, Pedrol MN y Sánchez MA. Editorial: Thomson-Paraninfo, pp. 997-1016.

• Santiago R, Souto XC, Sotelo J, Butrón A y Malvar RA (2003). Relationship between maize stem structural characteristics and resistance to pink stem borer (Lepidoptera: Noctuidae) attack.  Journal of Economic Entomology 96(5): 1563-1570.

• Souto XC y Pellissier F (2002). Feedback mechanism in the chemical ecology of plants: role of soil microorganisms. En el libro "Chemical Ecology of Plants: Allelopathy in Aquatic and Terrestrial Ecosystems", Editores: Inderjit, y Mallik, A.U. Editorial: Birkhauser-Verlag AG, pp. 89-98.

• Pellissier F, Gallet C y Souto XC (2002). Allelopathic interaction in forest ecosystems. En el libro "Allelopathy. From molecules to ecosystems", Editores: Reigosa MJ y Pedrol N. Editorial: Science Publishers, Inc. pp. 257-269.

• Souto XC, Bolaño JC, González L y Reigosa MJ (2001). Allelopathic effects of tree species on some soil microbial populations and herbaceous plants. Biologia Plantarum 44(2): 269-275.

• Souto XC, Bolaño JC, González L y Santos XX (2001). HPLC Techniques-Phenolics. En el libro "Handbook of Plant Ecophysiology Techniques", Editores: Reigosa MJ. Editorial: Kluwer Academic Publishers, pp.  251-282.

• Souto XC, Pellissier F y Chiapusio G (2000). Allelopathic effects of humus phenolics on growth and respiration of mycorrhizal fungi. Journal of Chemical Ecology 26(9): 2015-2023.

• Souto XC, Chiapusio G y Pellissier F (2000). Relationship between phenolics and soil microorganisms in spruce forests. Significance for natural regeneration. Journal of Chemical Ecology  26(9): 2025-2034.

• Pellissier F y Souto XC (1999). Allelopathy in northern temperate and boreal semi-natural woodland. Critical Reviews in Plant Sciences, 1: 637-652.

• Reigosa MJ, Souto XC y González L (1999). Effects of some phenolic compounds on six weed species. Plant Growth Regulation, 28: 83-88.

Colaboradores:

[Principal]       [Docencia]       [Miembros]       [Investigación]