First Report of Lasiodiplodia theobromae Causing Rot in Eggplant Fruit in Brazil

Vieira, Janiele Cássia Barbosa; Câmara, Marcos Paz Saraiva; Bezerra, Jadson Diogo Pereira; Motta, C. M. S.; Machado, Alexandre Reis

doi:10.1094/pdis-02-18-0269-pdn

Cited by 9 publications

(5 citation statements)

References 4 publications

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“…While the exact transition process of endophytic to pathogenic/parasitic form of fungi or vice versa is not fully explained, changes in the tropic states are believed to derive from distinct fungal gene expressions in response to plant species, physiology and plants' ability to perceive fungal presence (Pillai, 2017;Wheeler et al, 2019). Woodward et al (2005) first demonstrated direct and wound penetration of L. theobromae causing S. melongena fruit rot in USA, while Vieira et al (2018) reported the same in Brazil. However, in this study, the isolated pathogens H32a, and H32b identified as L. theobromae formed a brown color necrotic lesion on leaves of S. melongena.…”

Section: Characterization Of Isolated Fungal Pathogensmentioning

confidence: 99%

Morphological Characterization and Molecular Identification of Three Fungal Pathogens Isolated from Solanum melongena L. in Sri Lanka

Koshila¹,

Wanigatunge²,

Dias³

et al. 2023

J Agric Sciences

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Purpose: Solanum melongena L. (brinjal/ eggplant) is a popular vegetable in Sri Lanka. Like many solanaceous crops, brinjal fruits and plants are susceptible to various diseases. The objective of this study was to isolate, confirm pathogenicity and characterize fungal pathogens causing leaf blight, yellowing and necrosis in S. melongena plants in selected localities in Gampaha district, Sri Lanka. Research Method: Fungi associated with symptomatic S. melongena plants collected from three localities in Gampaha district, Sri Lanka, were isolated onto potato dextrose agar and their pathogenicity was tested on healthy S. melongena plants. Fungal isolates that were confirmed to be pathogenic were subjected to morphological and molecular characterization. Findings: Fifteen fungal isolates were obtained from infected leaves of S. melongena plants, and four fungal isolates were confirmed to be pathogenic on S. melongena. Isolates H32a and H32b causing similar disease symptoms were identified as Lasiodiplodia theobromae with 99.81% sequence similarity by the analysis of the internal transcribed spacer region (ITS1-5.8S-ITS2). The remaining two pathogenic isolates were identified as Pseudopestalotiopsis theae and Diaporthe eugeniae, with 100% and 99.82% sequence similarities, respectively. Originality/ Value: To our knowledge, this is the first report of leaf necrosis by L. theobromae, leaf yellowing by P. theae and leaf blight by D. eugeniae associated with S. melongena plants in Sri Lanka.

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Section: Characterization Of Isolated Fungal Pathogensmentioning

confidence: 99%

Morphological Characterization and Molecular Identification of Three Fungal Pathogens Isolated from Solanum melongena L. in Sri Lanka

Koshila¹,

Wanigatunge²,

Dias³

et al. 2023

J Agric Sciences

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“…to act as an efficient tool for bioremediation [6,[35][36][37]. Lasiodiplodia theobromae is well known for its phyto-pathological effects [38]; it was also proposed for the extraction of lipases to be used for the production of biodiesel from coconut oil [39]. However, to the best of our knowledge this is the first report on the ability of this fungus to remove aromatic acids from liquid media.…”

Section: Removal Of Cinnamic or Vanillic Acid In Liquid Mediamentioning

confidence: 99%

Removal Ability and Resistance to Cinnamic and Vanillic Acids by Fungi

et al. 2020

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Twelve fungal strains were assayed to investigate their resistance to cinnamic and vanillic acids and their ability to remove these compounds from a liquid medium. In a first step, the effect of the two aromatic acids (1 g/L) on the fungal growth kinetic was studied. The results were modelled through a logistic like function (Dantigny equation) to estimate τ, which is the time to the half-maximum colony diameter. The key findings of this part were as follows: (i) generally, cinnamic acid exerted a stronger effect than vanillic acid; (ii) aromatic acids exerted a delay on the growth of some fungi and only one strain (Athelia rolfsii) was completely inhibited. In the second part, fungi were assayed to investigate their ability to remove cinnamic and vanillic acids (ca. 350 mg/kg) from liquid media at pH 3.5. The results indicated that the most efficient fungi were Aspergillus niger and Lasiodiplodia theobromae.

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“…B. dothidea is the causal agent of disease in several fruit species, including white rot of apples (Wang et al, 2022 ), fruit black spot of pecan ( Carya illinoensis ) (Wang et al, 2021 ), fruit rot of pomegranate (Gu et al, 2020 ) and bot rot of Ficus carica (Wang et al, 2020a , 2020b ). L. theobromae causes decay of passion fruit ( Passiflora edulis ) (Zhang et al, 2020 ), rot of eggplant fruit (Vieira et al, 2018 ), and fruit rot of Guava ( Psidium guajava ) (Zee et al, 2021 ). N. parvum causes rachis rot in mango ( Mangifera indica) (Serrato‐Diaz et al, 2013 ) and stem end rot (SER) in avocado (Twizeyimana et al, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Pathogenic fungi shape the fungal community, network complexity, and pathogenesis in kiwifruit

Huang,

Sun,

et al. 2023

Microbial Biotechnology

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Kiwifruit decay caused by endophytic fungi is affected by exogenous pathogens that trigger changes in fungal community composition and interact with the endophytic fungal community. Four fungal pathogens of kiwifruit were identified. These were Aspergillus japonicus, Aspergillus flavus, Botryosphaeria dothidea, and Penicillium oxalicum. Except for P. oxalicum, the remaining three species represent newly described pathogens of kiwifruit. All four fungal species caused disease and decay in mature kiwifruit. Results of the fungal community analysis indicated that three pathogens that A. japonicus, A. flavus and P. oxalicum were the most dominant, however, other fungal species that did not cause disease symptoms were also present. Positive interactions between fungal species were found in asymptomatic, symptomatic, and infected kiwifruit. The ability of all four pathogens to infect kiwifruit was confirmed in an inoculation experiment. The presence of any one of the four identified pathogens accelerated decay development and limited the postharvest longevity of harvested kiwifruit. Results of the study identified and confirmed the ability of four fungal species to infect and cause decay in harvested kiwifruit. Changes in the structure and composition of the kiwifruit microbiome during the decay process were also characterized. This provides a foundation for the further study of the microbiome of kiwifruit and their involvement in postharvest diseases.

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First Report of Lasiodiplodia theobromae Causing Rot in Eggplant Fruit in Brazil

Cited by 9 publications

References 4 publications

Morphological Characterization and Molecular Identification of Three Fungal Pathogens Isolated from <em>Solanum melongena</em> L. in Sri Lanka

Morphological Characterization and Molecular Identification of Three Fungal Pathogens Isolated from <em>Solanum melongena</em> L. in Sri Lanka

Removal Ability and Resistance to Cinnamic and Vanillic Acids by Fungi

Pathogenic fungi shape the fungal community, network complexity, and pathogenesis in kiwifruit

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