Identification of Neofusicoccum parvum causing canker and twig blight on Ficus carica in Italy

Aiello, Dalia; Gusella, Giorgio; Fiorenza, Alberto; Guarnaccia, Vladimiro; Polizzi, G.

doi:10.36253/phyto-10798

Cited by 41 publications

(26 citation statements)

References 17 publications

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“…Specifically, B. dothidea has recently been reported in Sicily on walnut and pistachio [ 35 , 36 ]. Moreover, N. mediterraneum and N. parvum have been reported as highly aggressive pathogens among the Botryosphaeriaceae in Sicily [ 13 , 35 , 37 , 38 ]. In addition, N. mediterraneum was the most encountered species in Sicilian pistachio orchards [ 36 ].…”

Section: Discussionmentioning

confidence: 99%

“…Botryosphaeriaceae disease studies on Ficus spp., including the cultivated common fig (F. carica), have been published worldwide, showing that Botryosphaeriaceae and Diaporthaceae spp. are involved in complex diseases [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. Botryosphaeriaceae cause polyetic epidemics (2-3 cycles per season); thus, the progress of epidemics may extend for several years [10].…”

Section: Introductionmentioning

confidence: 99%

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A New Disease for Europe of Ficus microcarpa Caused by Botryosphaeriaceae Species

Fiorenza

Aiello

Costanzo

et al. 2022

Plants

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The Indian laurel-leaf fig (Ficus microcarpa) is an important ornamental tree widely distributed in the urban areas of Italy. Surveys conducted in 2019 and 2020 on several tree-lined streets, squares, and public parks in Catania and Siracusa provinces (Sicily, southern Italy) revealed the presence of a new disease on mature trees. About 9% of approximately 450 mature plants showed extensive branch cankers and dieback. Isolations from woody tissues obtained from ten symptomatic plants consistently yielded species belonging to the Botryosphaeriaceae family. The identification of the recovered fungal isolates was based on a multi-loci phylogenetic (maximum parsimony and maximum likelihood) approach of the ITS, tef1-α, and tub2 gene regions. The results of the analyses confirmed the presence of three species: Botryosphaeria dothidea, Neofusicoccum mediterraneum, and N. parvum. Pathogenicity tests were conducted on potted, healthy, 4-year-old trees using the mycelial plug technique. The inoculation experiments revealed that all the Botryosphaeriaceae species identified in this study were pathogenic to this host. Previous studies conducted in California showed similar disease caused by Botryosphaeriaceae spp., and the pathogenic role of these fungi was demonstrated. To our knowledge, this is the first report of Botryosphaeriaceae affecting Ficus microcarpa in Europe.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Disease for Europe of Ficus microcarpa Caused by Botryosphaeriaceae Species

Fiorenza

Aiello

Costanzo

et al. 2022

Plants

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“…However, foliar diseases have previously been reported as occurring on F. carica, such as Cercospora leaf spot (Schubert et al, 1999) The fig stem was also susceptible to infections by other fungal pathogens such as Neofusicoccum parvum and Neoscytalidium dimidiatum (Aiello et al, 2020;Gusella et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

“…carica in Mexico, namely Fusarium solani , Alternaria alternata and Pythium ultimum . The fig stem was also susceptible to infections by other fungal pathogens such as Neofusicoccum parvum and Neoscytalidium dimidiatum (Aiello et al, 2020; Gusella et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Characterization ofLasiodiplodiaspecies causing leaf blight, stem rot and fruit rot of fig (Ficus carica) in Malaysia

et al. 2022

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Fig (Ficus carica) is an exotic deciduous plant that is grown worldwide. Fungal diseases pose a major threat to fig plants, affecting their fruit quality and production. This study was conducted to characterize the fungal isolates associated with leaf blight, stem rot and fruit rot of F. carica in Malaysia through morphological analysis, DNA sequencing, multigene phylogenetic analysis and pathogenicity tests. From September 2018 to March 2019, 30 blighted leaves and 30 rotted stems and fruits of F. carica were collected from several nurseries in Malaysia. Thirty fungal isolates that belonged to Lasiodiplodia theobromae (27 isolates) and L. brasiliensis (three isolates) were identified based on morphological characteristics, comparison of DNA sequences and phylogenetic analysis of the internal transcribed spacer (ITS), elongation translation factor 1‐α (tef1‐α), β‐tubulin (tub2) and DNA‐directed RNA polymerase II subunit (rpb2). Among the 27 isolates of L. theobromae, nine isolates were obtained from leaves, eight isolates from stems and 10 isolates from fruits, whereas the three isolates of L. brasiliensis were obtained from stems (two isolates) and a leaf (one isolate). The results of pathogenicity tests revealed that L. theobromae and L. brasiliensis isolates were responsible for leaf blight and stem rot of F. carica, whereas fruit rot was caused by L. theobromae isolates. The present study highlighted two different species, L. theobromae and L. brasiliensis, as the causal agents of leaf blight and stem rot of F. carica. Additionally, L. theobromae caused fruit rot of F. carica in Malaysia.

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“…), and even Nectriaceae (Fusarium spp.) families were already reported (Aiello et al, 2020;Banihashemi & Javadi, 2009;Di Silvestro et al, 2021;Gusella et al, 2021). These fungi are able to induce severe dieback, cankers and blight symptoms in trunk, branches, twigs, shoots, fruits and leaves.…”

Section: Introductionmentioning

confidence: 89%

First report of fig tree dieback caused by Lasiodiplodia theobromae in Tunisia

Jabnoun‐Khiareddine

Abdallah

Mars

et al. 2022

Journal of Phytopathology

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In Tunisia, common fig (Ficus carica L., Moraceae) is a very ancient fruit crop, very important and still regaining interest. It is cultivated throughout Tunisia from the south to the north and from the east to the west. In July 2020, a severe unusual branch dieback and stem canker was observed on fig cv. ‘Zidi’ trees in a commercial orchard in north‐eastern Tunisia. Disease incidence was 50% and symptoms observed on the 10‐year‐old infected trees included wilt, defoliation, branch dieback and trunk and shoot cankers. The current study aimed to characterize the pathogen (s) associated with observed fig dieback and to study their pathogenicity. The causal agent has been identified as belonging only to the species Lasiodiplodia theobromae based on morphological characters and phylogenetic analyses, using combined sequences of ITS, tef1 and β‐tubulin (tub2) genes. Pathogenicity tests performed on 1‐year‐old detached and green shoots demonstrated that L. theobromae was pathogenic to common fig cv. ‘Zidi’. Symptom development was visible after 7–15 days of incubation at 25°C showing the aggressive behaviour of L. theobromae towards fig shoots. Cvs. ‘Chetoui’, ‘Zidi’, ‘Bidhi Bghal’ and ‘Bither Abyadh’ were less susceptible compared to the more susceptible cvs. ‘Soltani’ and ‘Bidhi 2’. To our knowledge, this study is the first report on common fig canker and dieback disease caused by L. theobromae in Tunisia and Africa. Considering the severe and rapid progress of this disease, prevention and management strategies should be implemented urgently to reduce its incidence and reduce fig tree losses.

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Identification of Neofusicoccum parvum causing canker and twig blight on Ficus carica in Italy

Cited by 41 publications

References 17 publications

A New Disease for Europe of Ficus microcarpa Caused by Botryosphaeriaceae Species

A New Disease for Europe of Ficus microcarpa Caused by Botryosphaeriaceae Species

Characterization ofLasiodiplodiaspecies causing leaf blight, stem rot and fruit rot of fig (Ficus carica) in Malaysia

First report of fig tree dieback caused by Lasiodiplodia theobromae in Tunisia

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