Pre and posthaustorial resistance to rusts in Lathyrus cicera L.
Lathyrus cicera has a high potential as fodder crop in dry areas, but can in particular environments be damaged by rust. Little is known on the availability of resistance against rust fungi and the underlying mechanisms in L. cicera germplasm. The present study assessed and characterised macro and microscopically the resistance to rust fungi Uromyces pisi and U. viciae-fabae, in a collection of L. cicera accessions. A wide range of disease reaction was found in the germplasm collection against the different rust species. L. cicera accessions were highly resistant to U. viciae-fabae being hypersensitive response the most frequent reaction. On the contrary, most accessions showed a compatible interaction with U. pisi, with varying levels of partial resistance, although cases of hypersensitivity were also identified. Differences on germination, orientated germ tube growth and appressoria differentiation were observed but were in general of marginal importance to explain the resistance to U. pisi among the L. cicera accessions. Resistance was due, to a combination of pre and post-haustorial mechanisms.
KeywordsLathyrus Resistance Rust fungi Uromyces pisi Uromyces viciae-fabae
We would like to acknowledge financial support from Integrated Portuguese-Spanish Action, Conselho de Reitores das Universidades Portuguesas, Portugal/Ministerio de Ciencia y Tecnología, Spain (E-95/04, AGL2005-01781). M. C. Vaz Patto was supported by Fundação para a Ciência e a Tecnologia, Lisboa, Portugal (SFRH/BPD/5697/2001).
- Duke JA (1981) Handbook of legumes of world economic importance. Plenum Press, New YorkGoogle Scholar
- Edwards MC, Bowling DJ (1986) The growth of rust germ tubes towards stomata in relation to pH gradients. Physiol Mol Plant Pathol 29:185–196Google Scholar
- Emeran AA (2003) Estudios de la resistencia genética y métodos alternativos de control de la roya de las habas. PhD Thesis, Córdoba University, Córdoba, SpainGoogle Scholar
- Farr DF, Rossman AY, Palm ME et al (2008) Fungal databases. Systematic Mycology and Microbiology Laboratory, ARS, USDA. From http://nt.ars-grin.gov/fungaldatabases/. Retrieved 8 February 2008
- Hanbury CD, Siddique KHM (2000) Registration of ‘Chalus’ Lathyrus cicera L. Crop Sci 40:1199Google Scholar
- Johnson LEB, Bushnell WR, Zeyen RJ (1982) Defense patterns in nonhost higher plant species against two powdery mildew fungi. I. Monocotyledonous species. Can J Bot 60:1068–1083Google Scholar
- López-Bellido L (1994) Grain legumes for animal feed. In: Bermejo JEH, Léon J (eds) Neglected crops: 1492 from a different perspective. Plant Production and Protection Series No 26. FAO, RomeGoogle Scholar
- Parlevliet JE (1979) The co-evolution of host-parasite systems. In: Hedberg I (ed) Parasites as plant taxonomists. Sym Bot Ups 22(4):39–45Google Scholar
- Prats E, Llamas MJ, Jorrín J et al (2007) Constitutive coumarin accumulation on sunflower leaf surface prevents rust germ tube growth and appressorium differentiation. Crop Sci. doi: 10.2135/cropsci2006.07.0482
- Rubiales D, Niks RE (1995) Characterization of Lr34, a mayor gene conferring nonhypersensitive resistance to wheat leaf rust. Plant Dis 79:1208–1212Google Scholar
- Saxena MC, Abd El Moneim AM, Ratinam M (1993) Vetches (Vicia spp.) and chicklings (Lathyrus spp.) in the farming systems in West Asia and North Africa and improvement of these crops at ICARDA. In: Garlinge JR, Perry MW (eds) Potential for Vicia and Lathyrus species as new grain and fodder legumes for Southern Australia. Occasional Publication No 1. Co-operative Research Center for Legumes in Mediterranean Agriculture (CLIMA), Perth, Western AustraliaGoogle Scholar
- Sillero JC, Moreno MT, Rubiales D (2001) Resistance to faba bean rust (Uromyces viciae-fabae) and Ascochyta blight (Ascochyta fabae) in a collection of Vicia spp. In: AEP (ed) Proceedings 4th European conference on grain legumes, Cracow, PolandGoogle Scholar
- Stakman EC, Steward DM, Loegering WQ (1962) Identification of physiologic races of Puccinia graminis var. tritici. Minn Agric Exp Sci J Series 4691Google Scholar
- Wynn WK (1976) Appressorial formation over stomates by bean rust: response to a surface contact stimulus. Phytopathology 66:136–146Google Scholar
- Wynn WK, Staples RC (1981) Tropisms of fungi in host recognition. In: Staples RC, Toenniessen GH (eds) Plant disease control: resistance and susceptibility. Wiley Interscience, New YorkGoogle Scholar