The First Report of Pestalotiopsis Sp. Causing Crown Rot Disease on Strawberries in Dalat

Le, Dung; Nguyen, Thi Dien; Đại, Phan Hoàng; Tuan, P. N.

doi:10.37569/dalatuniversity.6.3.81(2016)

Cited by 8 publications

(7 citation statements)

References 8 publications

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“…The cultural and morphological characteristics observed in the isolates of Neopestalotiopsis spp. were similar to those described by (Dung et al 2016;Chamorro et al 2016;Essa et al 2018;Sigillo et al 2020), who first reported Neopestalotiopsis spp. as a causal agent of strawberry crown rot in different regions around the world.…”

Section: Discussionsupporting

confidence: 89%

Outbreaks of crown rot in Fragaria x ananassa caused by Neopestalotiopsis mesopotamica in Ecuador

Reyna¹,

Figueroa

Casignia

et al. 2021

Emir J Food Agric

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Strawberry crown rot is one of the most important diseases in Ecuador, with an incidence of up to 70% in the field. In the world, the strawberry crown rot is caused by different etiological agents, which makes efficient control of the disease difficult. In this study, 12 samples of strawberry plants were collected, at different stages of disease development, to determine the causative agent in Ecuador. The fungal isolates, consistent with the isolation, were identified and characterized using molecular and morphological approaches, and finally, Koch's postulate was carried out. Based on the form of growth, mycelial color, conidial morphology, and molecular characteristics (sequencing of the ITS and EF-1α region), the pathogen associated with the symptoms showed 99% similarity with the species Neopestalotiopsis mesopotamica. The result of Koch's postulates showed symptoms similar to those observed in field plants, in addition, the same inoculated isolate was recovered from artificially inoculated tissues. This is the first report of this fungus causing strawberry crown rot in Ecuador and in the world.

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Section: Discussionsupporting

confidence: 89%

Outbreaks of crown rot in Fragaria x ananassa caused by Neopestalotiopsis mesopotamica in Ecuador

Reyna¹,

Figueroa

Casignia

et al. 2021

Emir J Food Agric

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“…which proved the Koch's postulate that the disease symptoms were caused by the same fungus that was originally isolated. Similar result was found as previously reported by Dung et al (2016).…”

Section: Pathogenicity Testsupporting

confidence: 93%

“…Diseases are the major constraints in economic production of strawberry. Many pathogen of strawberry have been recorded over the world (Dung et al, 2016). However, crown rot is caused by several pathogens viz., Pestalotiopsis sp.…”

Section: Introductionmentioning

confidence: 99%

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First Report of Pestalotiopsis clavispora (G.F. Atk.) Steyaert Causing Crown Rot Disease on Strawberry in India

Bhagariya¹,

Prajapati²

2019

IJEP

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The crown rot disease was recorded for the first time on strawberry Field from Hill Millet Research Station, Waghai, Gujarat state of India during 2017-2018. The diseased plants showed drying from the edge of the leaves. Dark lesion appears first on leaves and spreads downward to the crown region. The severely infected plant parts i.e., leaves, flowers, stems, fruits and roots are gradually turned into dark black in colour and later on plant had completely dried and resemble the symptoms of crown rot. The fungus was isolated from the diseased plant parts and subsequent re-inoculation of the same to healthy plants and its pathogenicity confirmed which revealed that Pestalotiopsis clavispora (G.F. Atk.) Steyaert is the causal organism. Pathogenicity tests showed that Pestalotiopsis clavispora could infect strawberry, which developed the same symptoms under artificial inoculation conditions to that observed in the field. Further, the fungus was identified based on morphological and cultural characteristics and this is the first report from India showing that Pestalotiopsis clavispora causes crown rot on strawberry.

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“…In Vietnam, Curvularia species such as C. gloeosporioides are known to cause anthracnose disease in coffee [74], and C. lunata causes postharvest problems in rice [75] and dragon fruit [76]. Pestalotiopsis virgatula and P. clavispora were recorded as causal agents of postharvest rot diseases on rambutan [77], and an unidentified Pestalotiopsis was associated with crown rot disease of strawberry [78].…”

Section: Discussionmentioning

confidence: 99%

Mangrove Dieback and Leaf Disease in Sonneratia apetala and Sonneratia caseolaris in Vietnam

Nguyen

Hardy

Le³

et al. 2021

Forests

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Even though survival rates for mangrove restoration in Vietnam have often been low, there is no information on fungal pathogens associated with mangrove decline in Vietnam. Therefore, this research was undertaken to assess the overall health of mangrove afforestation in Thanh Hoa Province and fungal pathogens associated with tree decline. From a survey of 4800 Sonneratia trees, the incidence of disorders was in the order of pink leaf spot > shoot dieback > black leaf spot for S. caseolaris and black leaf spot > shoot dieback > pink leaf spot for S. apetala. Approximately 12% of S. caseolaris trees had both pink leaf spot and shoot dieback, while only 2% of S. apetala trees had black leaf spot and shoot dieback. Stem and leaf samples were taken from symptomatic trees and fungi were cultured in vitro. From ITS4 and ITS5 analysis, four main fungal genera causing leaf spots and shoot dieback on the two Sonneratia species were identified. The most frequently isolated fungal taxa were Curvularia aff. tsudae (from black leaf spot),Neopestalotiopsis sp.1 (from stem dieback), Pestalotiopsis sp.1 (from pink leaf spot), and Pestalotiopsis sp.4a (from black leaf spot). The pathogenicity of the four isolates was assessed by under-bark inoculation of S. apetala and S. caseolaris seedlings in a nursery in Thai Binh Province. All isolates caused stem lesions, and Neopestalotiopsis sp.1 was the most pathogenic. Thus, investigation of fungal pathogens and their impact on mangrove health should be extended to other afforestation projects in the region, and options for disease management need to be developed for mangrove nurseries.

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The First Report of Pestalotiopsis Sp. Causing Crown Rot Disease on Strawberries in Dalat

Cited by 8 publications

References 8 publications

Outbreaks of crown rot in Fragaria x ananassa caused by Neopestalotiopsis mesopotamica in Ecuador

Outbreaks of crown rot in Fragaria x ananassa caused by Neopestalotiopsis mesopotamica in Ecuador

First Report of Pestalotiopsis clavispora (G.F. Atk.) Steyaert Causing Crown Rot Disease on Strawberry in India

Mangrove Dieback and Leaf Disease in Sonneratia apetala and Sonneratia caseolaris in Vietnam

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