Pomegranate fruit rot caused by Pilidiella granati in Mexico

Cintora-Martínez, Erika A.; Leyva-Mir, Santos Gerardo; Ayala‐Escobar, Victoria; Ávila-Quezada, Graciela Dolores; Camacho-Tapia, Moisés; Tovar‐Pedraza, Juan Manuel

doi:10.1007/s13314-017-0230-0

Cited by 11 publications

(13 citation statements)

References 14 publications

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“…Pilidiella granati) is an expanding threat to the pomegranate cultivation and industry and is rapidly emerging in almost all pomegranate producing regions of the world. Chronologically, this pathogen has been previously reported in Greece [27], Spain [24], Israel [28], USA [21], Iran [23], Turkey [18], China [19], Cyprus [16], Italy [22], and Mexico [20]. Although C. granati has been reported as causal agent of pomegranate shoot blight, of fruit rot that were visible by 3 days of incubation at 25°C, while control fruits remained symptomless.…”

Section: Discussionmentioning

confidence: 99%

“…This fungus has been reported to cause pomegranate fruit rots in many other countries [21,23]. 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].…”

Section: Pathogenicity On Detached Branchesmentioning

confidence: 99%

“…has been identified as a pathogen causing pre-harvest fruit rots on pomegranate [24]. Thomidis [14] showed that P. granati was isolated from about 60% of the preharvest rotted fruits without symptoms of cracking, while Cintora-Martínez et al [20] mentioned that fruit rot disease was observed on 60 to 85% of pomegranate fruits in an orchard located in Oaxaca, Mexico. P. granati was also identified as a pathogen causing postharvest pomegranate fruit rot but in much lower percentage than that induced by B. cinerea [14,24].…”

Section: Pathogenicity On Detached Branchesmentioning

confidence: 99%

“…These symptoms have been described in previous works as being associated with the presence of Coniella granati Saccardo (an obligate synonym of Pilidiella granati according to MycoBank database). This pathogen has been reported to be responsible for dieback and twig blight of pomegranate trees, fruit dry rot and/or crown rot, in many countries including China, India, Iran, Mexico, America, Greece, Turkey, Spain, and Italy [10,[18][19][20][21][22][23][24][25] and to cause substantial economic loss to pomegranate industry.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Discussionmentioning

confidence: 99%

Section: Pathogenicity On Detached Branchesmentioning

confidence: 99%

Section: Pathogenicity On Detached Branchesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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“…(syn. Pilidiella granati) (Van Niekerk et al 2004;Cintora-Martinez et al 2017). Further, the Internal Transcribed Spacer (ITS) region was amplified using ITS1-ITS4 primers and nBLAST analysis revealed 100% similarity with the reference sequences of P. granati.…”

mentioning

confidence: 99%

First report of Coniella granati associated with dieback and fruit rot of pomegranate (Punica granatum L.) in India

2019

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Biological Activity of Pyraclostrobin Against Coniella granati Causing Pomegranate Crown Rot

Yang

Sun

et al. 2021

Plant Disease

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Pomegranate crown rot caused by Coniellagranati is one of the most severe diseases of pomegranate. To date, no fungicides have been registered for controlling this disease in China. Pyraclostrobin, belonging to strobilurin fungicides, has a broad spectrum of activity against many phytopathogens. In this study, based on the mycelial growth and conidial germination inhibition methods, we investigated the biological activity of pyraclostrobin against C. granati at the presence of 50 μg/mL SHAM using 80 isolates collected from different orchards in China during 2012-2018. The EC50 (50% effective concentration) values ranged from 0.040-0.613 μg/mL for mycelial growth and 0.013-0.110 μg/mL for conidium germination, respectively. Treated with pyraclostrobin, the hyphae morphology changed and conidial production of C. granati decreased significantly. The result of transmission electron microscope showed that treatment of pyraclostrobin could make the cell wall thinner, and lead to ruptured cell membrane and formation of intracellular organelle autophagosomes. The pyraclostrobin showed good protective and curative activities against C. granati on detached pomegranate fruits. In field trials, pyraclostrobin showed excellent control efficacy against this disease in which the treatment of 25% pyraclostrobin EC 1000× provided 92.25% and 92.58% control efficacy in 2019 and 2020, respectively, significantly higher than that of other treatments. Therefore, pyraclostrobin could be a candidate fungicide for the control of pomegranate crown rot.

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Pomegranate fruit rot caused by Pilidiella granati in Mexico

Cited by 11 publications

References 14 publications

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

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

First report of Coniella granati associated with dieback and fruit rot of pomegranate (Punica granatum L.) in India

Biological Activity of Pyraclostrobin Against Coniella granati Causing Pomegranate Crown Rot

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