Skip to main content
Log in

A latex lectin from Euphorbia trigona is a potent inhibitor of fungal growth

  • Brief Communication
  • Published:
Biologia Plantarum

Abstract

In this study we identified and characterized a major latex lectin — designated as EtLLH — with antimicrobial activity from the succulent African milk tree Euphorbia trigona. The lectin is highly concentrated in the latex of E. trigona and appears to be composed of at least two subunits with a molecular mass of 32 kDa. EtLLH shares significant similarities to known plant lectins — ricin from Ricinus communis and agglutinin from Viscum album coloratum — which specifically bind D-galactose and N-acetyl-D-glucosamine, the major building blocks of many fungal cell walls. Antimicrobial activity assays revealed an impact of EtLLH on three phytopathogenic filamentous ascomycetes. The germination of the conidiospores and the hyphal growth of Aspergillus niger and Fusarium graminearum were severely inhibited by EtLLH already at concentrations below 0.1 mg cm−3, while the effect on germination of the melanized conidiospores of Botrytis cinerea was less significant.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Abbreviations

LC-MS:

liquid chromatography — mass spectrometry

SDS:

sodium dodecylsulphate

References

  • Barbieri, L., Falasca, A., Franceschi, C., Licastro, F., Rossi, C.A., Stirpe, F.: Purification and properties of two lectins from the latex of the euphorbiaceous plants Hura crepitans L. (sand-box tree) and Euphorbia characias L. (Mediterranean spurge). — Biochem. J. 215: 433–439, 1983.

    PubMed  CAS  Google Scholar 

  • Barkai-Golan, R., Mirelmann, D., Sharon, N.: Studies on growth inhibition by lectins of Penicillia and Aspergilli. — Arch. Microbiol. 116: 119–124, 1978.

    Article  PubMed  CAS  Google Scholar 

  • Bradford, M.M.: A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. — Anal. Biochem. 72: 248–254, 1976.

    Article  PubMed  CAS  Google Scholar 

  • Chrispeels, M.J., Raikhelb, N.V.: Lectins, lectin genes, and their role in plant defense. — Plant Cell 3: 1–9, 1991.

    Article  PubMed  CAS  Google Scholar 

  • Ciopraga, J., Gozia, O., Tudor, R., Brezuica, L., Doyle R.J.: Fusarium sp. growth inhibition by wheat germ agglutinin. — Biochim. biophys. Acta 1428: 424–432, 1999.

    PubMed  CAS  Google Scholar 

  • De Lucca, A.J., Cleveland, T.E., Wedge, D.E.: Review: plant derived antifungal proteins and peptides. — Can. J. Microbiol. 51: 1001–1014, 2005.

    Article  PubMed  Google Scholar 

  • Doss, R.P., Deisenhofer, J., Krug von Nidda, H.A., Soeldner, A.H., McGuire R.P.: Melanin in the extracellular matrix of germlings of Botrytis cinerea. — Phytochemistry 63: 687–691, 2003.

    Article  PubMed  CAS  Google Scholar 

  • Geer, L.Y., Sanford, P., Markey, J.A., Kowalak, L.W., Xu, M., Maynard, D.M., Yang, X., Shi, W., Bryant, S.H.: Open mass spectrometry search algorithm. — J. Protein Res. 3: 958–964, 2004.

    Article  CAS  Google Scholar 

  • Guerrero, R.O., Guzman, A.L.: Bioactivities of latexes from selected tropical plants. — Rev. Cub. Plant medic. 9: 1, 2004.

    Google Scholar 

  • Kekwick, R.G.O.: Latex and Laticifers. — In: Roberts, K. (ed.): Handbook of Plant Science. Pp. 1060–1074. John Wiley and Sons, West Sussex 2007.

    Google Scholar 

  • Larkin, M.A., Blackshields, G., Brown, N.P., Chenna, R., McGettigan, P.A., McWilliam, H., Valentin, F., Wallace, I.M., Wilm, A., Lopez, R., Thompson, J.D., Gibson, T.J., Higgins, D.G.: ClustalW and ClustalX version 2. — Bioinformatics 23: 2947–2948, 2007.

    Article  PubMed  CAS  Google Scholar 

  • Leslie, J.F., Summerell, B.A. (ed.): The Fusarium Laboratory Manual. — Blackwell Publishing Professional, Iowa 2006.

    Google Scholar 

  • Lewinsohn, T.M.: The geographical distribution of plant latex. — Chemoecology 2: 64–68, 1991.

    Article  Google Scholar 

  • Mirelmann, D., Galun, E., Sharon, N., Lotan, R.: Inhibition of fungal growth by wheat germ agglutinin. — Nature 256: 414–416, 1975.

    Article  Google Scholar 

  • Mortz, E., Vorm, B.O., Mann, M., Roepstorff, P.: Identification of proteins in polyacrylamide gels by mass spectrometric peptide mapping combined with database search. — Biol. Mass Spectrometry 23: 249–261, 1994.

    Article  CAS  Google Scholar 

  • Naumann, B., Stauber, E.J., Busch, A., Sommer, F., Hippler, M.: N-terminal processing of Lhca3 is a key step in remodeling of the photosystem I light-harvesting complex under iron deficiency in Chlamydomonas reinhardtii. — J. biol. Chem. 280: 21, 20431–20441, 2005.

    Article  Google Scholar 

  • Nsimba-Lubaki, M., Allen, A.K., Peumans, W.J.: Isolation and partial characterization of latex lectins from three species of the genus Euphorbia (Euphorbiaceae). — Physiol. Plant. 67: 193–198, 1986.

    Article  CAS  Google Scholar 

  • Olsnes, S., Kozlov, J.V.: Ricin. — Toxicon 39: 1723–1728, 2001.

    Article  PubMed  CAS  Google Scholar 

  • Peumans, W.J., Van Damme, E.J. M.: Lectins as plant defense proteins. — Plant Physiol. 109: 347–352. 1995.

    Article  PubMed  CAS  Google Scholar 

  • Seshagirirao, K.: Purification and partial characterization of a lectin from Pedilanthus tithymaloides. — Biochem. Arch. 11: 197–201, 1995.

    CAS  Google Scholar 

  • Seshagirirao, K., Prasad, M.N.: Purification and partial characterization of a lectin from Euphorbia neriifolia latex. — J. Int. Union Biochem. mol. Biol. 35: 1199–1204, 1995.

    CAS  Google Scholar 

  • Shevchenko, A., Sunyaev, S., Loboda, A., Shevchenko, A., Bork, P., Ens, W., Standing, K.G.: Charting the proteomes of organisms with unsequenced genomes by MALDIquadrupole time-of-flight mass spectrometry and BLAST homology searching. — Anal. Chem. 1: 1917–26, 2001.

    Article  Google Scholar 

  • Souza, M.A., Amancio-Pereira, F., Cardoso, C.R.B., Da Silva, A.G., Silva, E.G., Andrade, L.R., Pena, J.D.O., Lanza, H., Afonso Cardoso, S.R.: Isolation and partial characterization of a D-galactose-binding lectin from the latex of Synadenium carinatum. — Brazil. Arch. Biol. Technol. 48: 705–716, 2005.

    CAS  Google Scholar 

  • Van Parijs, J., Broekaert, W.F., Goldstein, I.J., Peumans, W.J.: Hevein: an antifungal protein from rubber-tree (Hevea brasiliensis) latex. — Planta 183: 258–264, 1991.

    Article  Google Scholar 

  • Wahler, D., Schulze Gronover, C., Richter, C., Foucu, F., Twyman, R.M., Moerschbacher, B.M., Fischer, R., Muth, J., Prüfer D.: Polyphenoloxidase silencing affects latex coagulation in Taraxacum species. — Plant Physiol. 151: 334–346, 2009.

    Article  PubMed  CAS  Google Scholar 

Download references

Acknowledgements

The authors acknowledge Prof. P. Tudzynski and Prof. B. Moerschbacher for providing the phytopathogenic fungi strains. We also thank Dr. K.J. Müller for helpful discussions. This work was supported by a grant from the Ministry of Science and Education of Germany (grant No. FKZ 0313712).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to C. Schulze Gronover.

Rights and permissions

Reprints and permissions

About this article

Cite this article

van Deenen, N., Prüfer, D. & Schulze Gronover, C. A latex lectin from Euphorbia trigona is a potent inhibitor of fungal growth. Biol Plant 55, 335–339 (2011). https://doi.org/10.1007/s10535-011-0049-z

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10535-011-0049-z

Additional key words

Navigation