Important Diseases of Pomegranate Fruit and Control Possibilities in Turkey

Pala, H.; Tatlİ, A.; Yılmaz, C.; Özgüven, A.I.

doi:10.17660/actahortic.2009.818.42

Cited by 30 publications

(15 citation statements)

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“…Alternaria alternata (Fr) Keissl., Coniella granati (Sarc.) Petr, Et Syd and Aspergillus niger yan Tieght were found as the major biotic diseases in Turkey (Pala et al 2009). There are only a few reports from different countries on virus and virus-like disease of pomegranate.…”

Section: Introductionmentioning

confidence: 99%

Detection and Identification of Phytoplasmas in Pomegranate Trees with Yellows Symptoms

Gazel

Çağlayan

Başpinar

et al. 2015

Journal of Phytopathology

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Symptoms resembling those associated with phytoplasma presence were observed in pomegranate (Punica granatum L.) trees in June 2012 in the Aegean Region of Turkey (Aydın province). The trees exhibiting yellowing, reduced vigour, deformations and reddening of the leaves and dieback symptoms were analysed to verify phytoplasma presence. Total nucleic acids were extracted from fresh leaf midribs and phloem tissue from young branches of ten symptomatic and five asymptomatic plants. Nested polymerase chain reaction assays using universal phytoplasmaspecific 16S rRNA and tuf gene primers were performed. Amplicons were digested with Tru1I, Tsp509I and HhaI restriction enzymes, according to the primer pair employed. The phytoplasma profiles were identical to each other and to aster yellows (16SrI-B) strain when digestion was carried out on 16Sr(I)F1/R1 amplicons. However, one of the samples showed mixed profiles indicating that 16SrI-B and 16SrXII-A phytoplasmas were present when M1/M2 amplicons were digested, the reamplification of this sample with tuf cocktail primers allowed to verify the presence of a 16SrXII-A profile. One pomegranate aster yellows strain AY-PG from 16S rRNA gene and the 16SrXII-A amplicon from tuf gene designed strain STOL-PG were directly sequenced and deposited in GenBank under the Accession Numbers KJ818293 and KP161063, respectively. To our knowledge, this is the first report of 16SrI-B and 16SrXII-A phytoplasmas in pomegranate trees.

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Section: Introductionmentioning

confidence: 99%

Detection and Identification of Phytoplasmas in Pomegranate Trees with Yellows Symptoms

Gazel

Çağlayan

Başpinar

et al. 2015

Journal of Phytopathology

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“…For instance, Kumari [30] proved the pathogenicity of C. granati to pomegranate fruits in India that developed typical symptoms of dry rot within 7-8 days after inoculation, whereas other researchers reported that pomegranate fruits from Greece, Spain and Mexico developed C. granati rot symptoms within 10, 7 and 6 to 9 days after inoculation, respectively [20,24,27]. Furthermore, the typical symptoms of the disease on fruits were found identical as described by different workers from different regions of the world [21,23,25,27,34,35]. Indeed, as reported by in another study [34,35], C. granati-incited rot differs from Alternaria, Aspergillus and Botrytis fruit rots, in that it causes breaking of the peel, unevenly distributed black dots on fruit peel, and a black circle around the black dots.…”

Section: Pathogenicity On Detached Branchesmentioning

confidence: 76%

Coniella granati (Saccardo) a New Potential Threat to Pomegranate (Punica granatum L.) in Tunisia Causing Twig Dieback and Fruit Rot

Khiareddine¹,

Ibrahim²,

Abdallah³

et al. 2018

J Plant Pathol Microbiol

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The disease caused by Coniella granati (Saccardo) (syn. Pilidiella granati, Saccardo) is an expanding threat to pomegranate (Punica granatum L.) cultivation and industry and is rapidly emerging in almost all pomegranateproducing regions of the world. The current study presents the first attempt to characterize C. granati associated with pomegranate dieback, shoot blight and fruit rot in Tunisia. Pathogenic isolates were identified based on their cultural and morphological characteristics and molecular data. Collected C. granati isolates were shown able to grow between 10°C and 30°C with an optimal mycelial growth at 20-25°C but they did not grow at 35°C. The fungus was able to grow 4-10 pH with an optimum growth at pH 4-5 for Cg1 and Cg2 isolates. Potato Dextrose Agar (PDA), Carrot Agar (CA) and Oatmeal Agar (OA) followed by pomegranate juice agar (PJA) and Malt Extract Agar (MEA) favored its mycelial growth. Pathogen growth was reduced under continuous light in comparison with the 12 h light/12 h dark regime and was significantly slowest under 24 h dark regime. Inoculated to pomegranate cv. Gabsi fruits, C. granati isolates induced soft rot within 9 days following incubation at 25°C and a complete fruit rot after 15 days. Leaves were highly susceptible to C. granati infection and completely degenerated 5 days post-inoculation. C. granati isolates were found to be pathogenic on pomegranate cv. Gabsi attached shoots and detached branches, giving rise to brown necrotic lesions. Keeping in view the importance of the pomegranate crop and the destructive nature of Coniella induced disease, further studies are needed to verify the pathogen host range, its aggressiveness towards the mostly grown Tunisian pomegranate varieties and to search for suitable control methods.

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“…The total area under pomegranate is 132 thousand hectare with annual production of 1357 thousand MT in 2014-2015(Anonymous, 2015. A. alternata is an important plant pathogen that causes black spot disease with symptoms present on leaves, flowers, and young fruit of pomegranate (Pala et al, 2009;Holland et al, 2009). This disease is a major hurdle in quality production and high yield in the crop causing up to 15-80% losses in Karnataka including Bijapur, Bagalkot and Koppal districts (Archana and Jamadar, 2014).…”

Section: Introductionmentioning

confidence: 99%

Studies of alternaria black spot disease of pomegranate caused by Alternaria alternata in Punjab

Kumar

Chahal

Singh

et al. 2017

JANS

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Alternaria black spot of pomegranate caused by Alternaria alternata pose significant economic losses in India as it reduce the crop yield. Farm survey was undertaken at Punjab Agricultural University, Pomegranate Research Block, Fruit Research Station, Jallowal-Lesriwal Jalandhar during 2015. Among all the five cultivars highest disease incidence (70%) and severity (30%) was registered in cultivar Bhagwa. Twenty two isolates of A. alternata were recovered from infected fruits and clustered using UPGMA (unweighted pair group method with arithmetic averages) on the basis of disease score produced in five cultivars (Ganesh, Ruby, Bhagwa, Jyoti and Mridula). It was revealed that five isolates namely AL14, AL15, AL20, AL21 and AL22 were highly virulent on almost all the pomegranate cultivars. Two cultivars viz. Bhagwa and Mridula were found to be most susceptible as 45.45 % isolates were found to be highly virulent on them.The in vitro antifungal effects of the six fungicides on mycelial growth were investigated. Based on the inhibition of mycelial growth, all the fungicides showed most toxic reaction with 50% effective concentrations (EC 50 ) of < 1 ppm. However, they varied in EC90 values. 10 ppm cocentration of Tilt (azole group) showed 90% effective concentration (EC 90 ). Folicur also showed approximately same results as Tilt while EC 90 value of Natio and SAAF was <25 ppm and > 20 ppm. However, two fungicides namely Dithane Z-78 and Bavistin showed less toxicity against Alternaria alternata as compared to other with EC 90 value at concentrations <50 ppm and > 25 ppm. Azole group fungicides (Tilt and Folicur) were found most effective to inhibit the pathogen growth.

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Important Diseases of Pomegranate Fruit and Control Possibilities in Turkey

Cited by 30 publications

References 0 publications

Detection and Identification of Phytoplasmas in Pomegranate Trees with Yellows Symptoms

Detection and Identification of Phytoplasmas in Pomegranate Trees with Yellows Symptoms

Coniella granati (Saccardo) a New Potential Threat to Pomegranate (Punica granatum L.) in Tunisia Causing Twig Dieback and Fruit Rot

Studies of alternaria black spot disease of pomegranate caused by Alternaria alternata in Punjab

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