Tylenchulus semipenetrans (Nematoda: Tylenchulidae) on pomegranate in Iran

Abstract

Tylenchulus semipenetrans was identified morphologically from root samples collected from a pomegranate plant in a garden in the Shahdad region of southeastern Iran. Molecular analysis based on the D2-D3 segment of 28S rDNA confirmed this population as T. semipenetrans. Phylogenetic analysis using the Maximum Likelihood (ML) method, places this population close to the same species from the USA, Egypt and Korea. This is the first record of T. semipenetrans on pomegranate in Iran and worldwide.

Plant parasitic nematodes fauna in citrus orchards in Khuzestan province, Southwestern Iran

“…In the present study, this species was recovered from 20.5% of soil samples from the rhizosphere of orange, lemon and sour orange in the vicinity of Shush, Dezful, Ramhormoz, Baghmalek and Ramin cities, Khuzestan province, Southwestern Iran. (Table 4) Characters measured in Khuzestan population of T. semipenetrans are consistent with other populations including Inserra et al (1988) and Rashidifard et al (2015). However, the length of the stylet in second stage juveniles (J2) is slightly shorter (9.5-12.5 vs 12.2-13.2 μm).…”

“…semipenetrans has been reported from the roots of various plants like citrus (Fars, Mazandaran, Golestan, Lorestan, Khuzestan, Kerman, Boushehr and Hormozgan provinces), olive (Kermanshah and Mazandaran provinces) and grape (Mazandaran and Markazi provinces) in Iran (Ghaderi et al, 2012). Also, has been reported from the root samples of pomegranate in Kerman province (Rashidifard et al, 2015). In the present study, this species was recovered from 19.9% of root samples from the rhizosphere of orange, sour orange, lemon and tangerine in the vicinity of Ahvaz, Abadan, Ramin, Shush, Dezful, Baghmalek, Andimeshk, Behbahan cities, Khuzestan province, Southwestern Iran.…”

The feeding strategies of plant-parasitic nematodes

“…Kök dokusu dışında kuyruk kısımları kalmakta ve şişkinleşmektedir (Şekil 6;Manzanilla-Lopez et al, 2004). Bu tip beslenme, Rotylenchulus, Telotylenchus ve Tylenchulus cinsine bağlı nematod türlerinde gözlemlenebilmektedir (Decraemer & Hunt, 2006;Rashidifard et al, 2015). Şekil 6.…”

Doğu Akdeniz Bölgesi’nde doğa koşullarında bazı turunçgil anaçlarının Turunçgil nematodu’na [Tylenchulus semipenetrans (Cobb, 1913) (Tylenchida: Tylenchulidae)] karşı dayanıklılığının araştırılması

“…The citrus nematode has been recorded in every commercial citrus-producing country, and the infection percent is 24-60% in California and Florida states; 70-90% in Texas, Arizona, Brazil, and Spain (Cobb 1913, 1914, de Campos et al 2002, Esser et al 1993, Heald and O'Bannon 1987. Also, T. semipenetrans were found firstly on pomegranate in Iran and worldwide (Rashidifard et al 2015). In the Aegean region of Turkey, 89.33% and 88.88% of citrus nematodes were detected in Izmir and Aydın, respectively (Emre andKaşkavalcı 2015, Kesici 2016).…”