Phytophthora nicotianae var parasitica pathogène du piment en Tunisie

Abstract

(1990), which is synonymous with Phytophthora parasitica sensu Tucker (1931). The study of the homothallism, heterothallism and sexual genetic compatibility of the A 1 and A2 types was undertaken. The morphological variations observed in the strains and the Phytophthora sp taxonomy are discussed.

Short communication. Phytophthora nicotianae, the causal agent of root and crown rot (Tristeza disease) of red pepper in La Vera region (Cáceres, Spain)

“…This situation is similar to that described in Tunisia by Allagui et al (1995) and in Ciudad Real and Toledo (Castilla-La Mancha, Spain) by Bartual et al (1991), where P. nicotianae was also the only species associated with the disease. Symptoms observed in diseased plants from La Vera region were also like those described by Allagui et al (1995) in Tunisia. Identification of P. nicotianae as the principal causal agent of Tristeza of red pepper in La Vera has several implications for the development of disease management strategies.…”

“…Phytophthora capsici Leonian has been reported as the causal agent of root and crown rot of C. annuum in many countries (Erwin and Ribeiro, 1996), but other Phytophthora species and even other genera have been also associated with this disease. Thus P. nicotianae Breda de Haan (= P. parasitica Dastur) has been reported as a pathogen to pepper plants in United States, Puerto Rico, Japan, Italy, Mauritius and India (Erwin and Ribeiro, 1996 and references therein) and this is the species that causes the disease in Tunisia (Allagui et al, 1995). In Spain P. nicotianae causes root and crown rot of peppers in Ciudad Real and Toledo (CastillaLa Mancha) (Bartual et al, 1991) and has been reported in association with P. capsici in Andalucía (Larregla, 2003) and Galicia (Pomar et al, 2001;Andrés-Ares et al, 2003).…”

Relationship between epistasis and aggressiveness in resistance of pepper (Capsicum annuum L.) to Phytophthora nicotianae

“…These isolates were identified as P. nicotianae according to morphological and biological characteristics described by Allagui et al (1995) and Allagui and Lepoivre (2000).…”

Characterization ofPhytophthora nicotianaeisolates in southeast Spain and their detection and quantification through a real-time TaqMan PCR

“…However, other Phytophthora species and other genera have been associated with this disease. Phytophthora nicotianae van Breda de Haan (= Phytopthora parasitica Dastur (1896)) has been reported as a pathogen to pepper plants in different countries such as the USA, India, Tunisia and Spain . Recently, we have observed that the symptoms of Tristeza disease in pepper plants in southeast Spain (Murcia) are mainly caused by P. nicotianae.…”