Welcome to International Network for Natural Sciences | INNSpub

Characterization of strains of Pytophthora infestans isolated from Western Algeria: Pathogenecity and virulence

Research Paper | March 1, 2019

| Download 8

Ameziane El Houcine, Amara Ayad Abderrahmane, Benyoucef Soumia, Baba Hamed Mohamed Bey

Key Words:

J. Bio. Env. Sci.14( 3), 71-80, March 2019


JBES 2019 [Generate Certificate]


The present work at a level that potato late blight attacks by P. infestans in western Algeria may be at the foliage level when infection is early and weather conditions are favorable. Thus, the impacts, severities and frequencies recorded in this region have remarkably increased the 2015-2016 crop year. Characterization of 40 isolates from harvested potato from different Wilaya revealed high variability in the population of P. infestans collected. This variability lies essentially in the coexistence of the two sex types A1 and A2 in the same plot or in separate plots. Thus, the isolates collected from the potato, those that come from the region of Mascara, Mostaganem, Ain Defla and chlef features biological and epidemiological significance than other isolates in mycelial growth, in vitro sporulation capacity, direct and indirect sporocyst germination pathogenicity and. Aggressiveness This study of the aggressiveness of isolates conducted on the leaves of different elements of a background that the potato varieties have levels of sensitivity to the pathogen. This great sensitivity noticed in the varieties tested suggests the presence in the Algerian field of a new population of the very aggressive pathogen.


Copyright © 2019
By Authors and International Network for
Natural Sciences (INNSPUB)
This article is published under the terms of the Creative
Commons Attribution Liscense 4.0

Characterization of strains of Pytophthora infestans isolated from Western Algeria: Pathogenecity and virulence

Andrivon D, Avendaño-Córcoles J, Cameron AM, Carnegie SF, Cooke LR, Corbière R, Detourné D, Dowle LJ, Evans D, Forisekova K, Griffin DG, Hannukkala A, Lees AK, Lebecka R, Niepold F, Polgar Z Shaw DS, Thompson J, Trognitz B, van Raaij HMG, Zimnoch-Guzowska E. 2011. Stability and variability of virulence of Phytophthora infestans assessed in a ring test across European laboratories Plant pathology.

Andrivon D, Lebreton L. 1997. Mildiou de la pomme de terre, ou en sommes-nous Après 150 ans Phytoma 494, 24-27.

Andrivon D. 1995. Biology, ecology and epidemiology of late blight potato pathogen Phytophtora infestans in soil, Phytopathology 85, 1053-1056.

Andrivon D. 1996. The origin of Phytophtora infestans populations present in Europe in the 1980s: a critical review of historical and scientific evidence. Plant Pathology 45, 1027-1035.

BaKonyi J, Laday M, Dula T, Ersek T. 2002. Characterization of isolates of Phytophthora infestans from Hungary. European Journal of Plant Pathology 108, 139-146.

Bertrand C. 2015. Etude des symptômes dans le cadre des interactions entre Solanum tuberosum L et Phytophthora infestans Thèse de doctorat en Sciences Biologique.

Ferjaoui S, Naïma Boughalleb, Khamassi1 N, M’Hamdi M, Romdhani ME. 2010. Evaluation de la résistance de certaines variétés de pomme de terre biologique au mildiou (Phytophthora infestans (Mont) de Bary TROPICULTURA 28, 1, 44-49.

Fry WE, Goodwin SD, Matuzak J M, Spielman LJ, Milgroon MG. 1992. Population genetics and intercontinental migration of Phytophtora infestans. Annual Review of Phytopathology 30, 107-129.

Gloria A. 2008. Methods for identification of Phytophtora species.Unites states department of Agriculture. Lead Scientist .Molecular diagnostics laboratory.

Hammi AE. 2003. Caractérisation de population de Phytophtora infestans (Mont) Barry dans la région de Sais. Thèse de doctorat en Phytopathologie Fès 272-274.

Montarry J. 2007. Réponse adaptative des populations de Phytophtora infestans, agent du mildiou de la pomme de terre, au déploiement en culture de son hôte Solanumtuberosum. Thèse doctorat en biologie et agronomie de l’école national supérieure agronomie (ENSAR) de Rennes France 177p.

Nicolat M. 2016. Caractéristique et évolution des traits d’histoire de vie de Phytophtora infestans et conséquence gestion des Mildiou de la pomme de terre Thèse de doctorat en sciences France.

Sanju S, Thakur A , Siddappa S, Sreevathsa R , Srivastava N , Shukla P Singh BP. 2013. Pathogen virulence of Phytophthora infestans: from gene to functional genomics. Physiol Mol Biol Plants 19(2), 165-77.

Volk TJ. 2001. Phytophtora infestans cause of late blight of potato and the Irish potato famine.

Zwankhhuien MJ. 1998. Potato late blight epidemics and population structure of Phytophtora infestans. PhD Thesis, Wageningen Agricultural Univer.