Canker and leaf scorch on olive (Olea europaea L.) caused by Neoscytalidium dimidiatum in Turkey

Güney, İnci Güler; Özer, Göksel; Türkölmez, Şahimerdan

doi:10.1016/j.cropro.2022.105985

Cited by 16 publications

(23 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(Ören et al., 2021 ; Sha et al., 2022 ), Mangifera indica (Ray et al., 2010 ; Sakalidis et al., 2011 ; Ismail et al., 2013 ; Coutinho et al., 2018 ), Melissa officinalis (Özer et al., 2022), Morus spp. (Oksal, 2022 ), Olea europaea (Güney et al., 2022b ), Origanum onites (Alkan et al., 2022 ), Pinus spp. (Türkölmez et al., 2019a ; Alizadeh et al., 2022 ), Pistacia vera (Derviş et al., 2019a ), Populus spp.…”

Section: Pest Categorisationmentioning

confidence: 99%

“…In the non‐EU areas of its current distribution, N. dimidiatum affects a wide range of woody perennial crops and ornamental plants causing a variety of symptoms, which include leaf spot, leaf scorch, leaf/needle blight, shoot blight, branch dieback, canker, blossom decline, pre‐harvest and post‐harvest fruit rot, stem‐end rot, gummosis, root rot, decline and even the death of the hosts (Pavlic et al., 2008 ; Polizzi et al., 2011 ; Sakalidis et al., 2011 ; Mohd et al., 2013 ; Rolshausen et al., 2013 ; Machado et al., 2014 ; Yi et al., 2015 ; Mayorquin et al., 2016 ; Lin et al., 2017 ; Nouri et al., 2018 ; de Mello et al., 2019 ; Oksal et al., 2019 ; Sabernasab et al., 2019 ; Türkölmez et al., 2019a , 2019b ; Hong et al., 2020 ; Nourian et al., 2021 ; Özer et al., 2022 ; Güney et al., 2022a , 2022b ; Ören et al., 2022a , 2022b ).…”

Section: Pest Categorisationmentioning

confidence: 99%

“…In 2019, during a survey of table‐ and oil‐producing olive ( Olea europaea ) cultivars in commercial groves in Akçakale, Şanlıurfa Province, Southeast Anatolia Region, Türkiye, N. dimidiatum was identified as the causal agent of an unusual and serious disease resembled olive leaf scorch disease caused by the bacterium Xylella fastidiosa (Güney et al., 2022b ). Despite the similarities, scorched leaves exhibited black sporulation mostly on the abaxial surface, unlike typical X. fastidiosa infections, and were accompanied by cankers on twigs and branches and ultimately, death of affected trees.…”

Section: Pest Categorisationmentioning

confidence: 99%

See 2 more Smart Citations

Pest categorisation of Neoscytalidium dimidiatum

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2023

EFS2

View full text Add to dashboard Cite

The EFSA Plant Health Panel performed a pest categorisation of Neoscytalidium dimidiatum, a clearly defined plant pathogenic fungus of the family Botryosphaeriaceae. The pathogen affects a wide range of woody perennial crops and ornamental plants causing symptoms such as leaf spot, shoot blight, branch dieback, canker, pre-and post-harvest fruit rot, gummosis and root rot. The pathogen is present in Africa, Asia, North and South America, and Oceania. It has also been reported from Greece, Cyprus and Italy, with a restricted distribution. Nevertheless, there is a key uncertainty on the geographical distribution of N. dimidiatum worldwide and in the EU, because in the past, when molecular tools were not available, the two synanamorphs of the pathogen (Fusicoccum-like and Scytalidium-like) might have been misidentified based only on morphology and pathogenicity tests. N. dimidiatum is not included in Commission Implementing Regulation (EU) 2019/2072. Because of the wide host range of the pathogen, this pest categorisation focuses on those hosts for which there is robust evidence that the pathogen was formally identified by a combination of morphology, pathogenicity and multilocus sequence analysis. Plants for planting, fresh fruits and bark and wood of host plants as well as soil and other plant growing media are the main pathways for the further entry of the pathogen into the EU. Host availability and climate suitability factors occurring in parts of the EU are favourable for the further establishment of the pathogen. In the areas of its present distribution, including Italy, the pathogen has a direct impact on cultivated hosts. Phytosanitary measures are available to prevent the further introduction and spread of the pathogen into the EU. N. dimidiatum satisfies the criteria that are within the remit of EFSA to assess for this species to be regarded as potential Union quarantine pest.

show abstract

Section: Pest Categorisationmentioning

confidence: 99%

Section: Pest Categorisationmentioning

confidence: 99%

Section: Pest Categorisationmentioning

confidence: 99%

See 1 more Smart Citation

Pest categorisation of Neoscytalidium dimidiatum

Bragard¹,

Baptista²,

Chatzivassiliou³

et al. 2023

EFS2

View full text Add to dashboard Cite

show abstract

“…Interestingly, since the OQDS outbreak occurred, other decline syndromes of olive trees characterized by a general dieback, canker and death of branches and twig wilting were reported in Italy (including Apulia) and other parts of the world. These were associated with a mycobiota in which some fungal taxa played major roles— Botryosphaeriaceae , Pleurostomophora richardsiae , Phaeoacremonium spp., Cytospora spp., Phaeomoniellales, Arthrinium marii , Neofabraea kienholzii , and Phlyctema vagabunda [ 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Identification and Characterization of Neofusicoccum stellenboschiana in Branch and Twig Dieback-Affected Olive Trees in Italy and Comparative Pathogenicity with N. mediterraneum

Manetti¹,

Brunetti²,

Lumia³

et al. 2023

JoF

View full text Add to dashboard Cite

For about a decade, olive groves in Apulia (Southern Italy) have been progressively destroyed by Olive Quick Decline Syndrome (OQDS), a disease caused by the bacterium Xylella fastidiosa subsp. pauca (Xfp). Recently, we described an additional wilting syndrome affecting olive trees in that area. The botryosphaeriaceous fungus Neofusicoccum mediterraneum was found associated with the diseased trees, and its high virulence toward olive trees was demonstrated. Given the common features with Branch and Twig Dieback (BTD) of olive tree, occurring in Spain and California, we suggested that the observed syndrome was BTD. During our first survey, we also found a botryosphaeriaceous species other than N. mediterraneum. In the present article, we report the morphological and molecular characterization of this fungal species which we identified as Neofusicoccum stellenboschiana. In the study, we also included for comparison additional N. stellenboschiana isolates obtained from olive trees in Latium and Tuscany region (Central Italy). The occurrence of N. stellenboschiana in olive trees is reported here for the first time in the northern hemisphere. The pathogenicity and virulence were tested in nine inoculation trials, where the Apulian N. stellenboschiana isolate was compared with the isolate from Latium and with the Apulian isolate of N. mediterraneum. Both isolates of N. stellenboschiana proved pathogenic to olive trees. They caused evident bark canker and wood discolouration when inoculated at the base of the stem of two/three-year-old trees and on one-year-old twigs. However, virulence of N. stellenboschiana was significantly lower, though still remarkable, compared with N. mediterraneum in term of necrosis progression in the bark and the wood and capacity of wilting the twigs. Virulence of N. stellenboschiana and N. mediterraneum did not substantially change when inoculations were performed in spring/summer and in autumn, suggesting that these fungal species have the potential to infect and damage olive trees in all seasons. The high thermotolerance of N. stellenboschiana was also revealed with in vitro growth and survival tests. The high virulence of these Botryosphaeriaceae species highlights their contribution in BTD aetiology and the necessity to investigate right away their diffusion and, possibly, the role of additional factors other than Xfp in the general decline of olive groves in Apulia. Hence the importance of assessing the degree of overlap of BTD/Botryosphariaceae with OQDS/Xfp is discussed.

show abstract

“…They confirmed the identification results based on ITS primer. Furthermore, N. dimidiatum was isolated from infected Apple tree in Iran (Nourian et al 2021) and Olive canker in Turkey (Güney et al 2022) using morphological characteristics as well as phylogenetic analysis of fungal ITS, the translation elongation factor 1(TEF1) and tubulin (Bt2a) gene. Moreover, Crous et al (2006) and Slippers and Wingfield (2007) replaced S. dimidiatum with N. dimidiatum depend on the aerial conidia and confirmed by DNA-based phylogenetic position.…”

mentioning

confidence: 99%

Morphological and molecular characterization of Neoscytalidium isolates that cause canker and dieback in Eucalyptus and Chinaberry trees in Iraq

Abdulrahman¹,

Haleem²

2023

Plant Prot. Sci.

View full text Add to dashboard Cite

Eucalyptus belongs to the Myrtaceae family and has become the main source of different industrial applications such as the production of paper, furniture, energy, charcoal, and housing in the last century. The Eucalyptus genus includes about 700 species (Brooker 2000). Several Eucalyptus species are planted in Iraq; however, the most common species are E. microtheca Muell and E. calmaldulensis Dehn (Al-Iryani 1998). Botryosphaeriaceae, a fam-ily of sac fungi (Ascomycetes), is the typical representative of Botryosphaeriales order. The fungi of this family are usually connected with cankers and dieback in shrubs and woody plants (Bush 2018). According to Crous et al. (2006), the genus Neoscytalidium is a genus of plant pathogenic fungus causing cankers and dieback on woody plants all over the world. In Kurdistan region, several symptoms have been observed in the eucalyptus

show abstract

Canker and leaf scorch on olive (Olea europaea L.) caused by Neoscytalidium dimidiatum in Turkey

Cited by 16 publications

References 37 publications

Pest categorisation of Neoscytalidium dimidiatum

Pest categorisation of Neoscytalidium dimidiatum

Identification and Characterization of Neofusicoccum stellenboschiana in Branch and Twig Dieback-Affected Olive Trees in Italy and Comparative Pathogenicity with N. mediterraneum

Morphological and molecular characterization of Neoscytalidium isolates that cause canker and dieback in Eucalyptus and Chinaberry trees in Iraq

Contact Info

Product

Resources

About