New Insights and Case Studies in Specific and Complex Plant Diseases

Topic Information

Dear Colleagues,

In recent years, both cultivated crops and ornamental and forest species are facing new or re-emerging diseases that cause damage or pose severe threats to the intensive plantations, the urban greenery and the natural ecosystems. This can be especially evident in perennial species in which a harmful action can impact and cumulate over the years in the form of both acute or chronic symptomatology. In some cases, the relationships between one single causal agent and the disease appear quite unambiguous as the pathogen unequivocally expresses a high virulence in the Kock postulate experiments. In other circumstances, the disease appears as the outcome of the concerted action of more biotic agents (i.e., viruses, bacteria, fungi) and of abiotic factors which trigger a climate change and modify the ecological niche of both the microbial community and the host plant. This multi-factorial interaction gives rise to disease states whose etiology can be puzzling to unravel. In this latter case, not only virulent microbes but also opportunistic/secondary colonizers and microorganisms able to perform both a pathogenic and an endophytic lifestyle are involved. The comprehension of specific and complex or polymicrobial plant diseases is facing a new era due to the high-resolution contribution of the new “omics” technologies that can provide insights into the many relationships between the microbes, the environment and the host plant. This Topics focuses on novel acquisitions, in terms of etiological investigations—namely predisposing, inciting and contributing factors—epidemiology, plant-microbe-environment interactions, detection and control, concerning plant diseases caused by a single agent or multiple biotic/abiotic stress factors. Reviews of the current knowledge of the diseases are also of interest.

Dr. Stefania Loreti
Dr. Massimo Pilotti
Dr. Marco Scortichini
Dr. Tatjana Popović Milovanović
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Agronomy agronomy	3.7	5.2	2011	17.3 Days	CHF 2600	Submit
Journal of Fungi jof	4.7	4.9	2015	16.6 Days	CHF 2600	Submit
Microorganisms microorganisms	4.5	6.4	2013	14.5 Days	CHF 2700	Submit
Pathogens pathogens	3.7	5.1	2012	16.4 Days	CHF 2700	Submit
Plants plants	4.5	5.4	2012	15.3 Days	CHF 2700	Submit

Published Papers (2 papers)

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Open AccessArticle

Phylogeographic Analysis of Soft-Rot-Causing Pectobacterium spp. Strains Obtained from Cabbage in Serbia

by

Aleksandra Jelušić

,

Marco Scortichini

,

Sanja Marković

,

Petar Mitrović

,

Renata Iličić

,

Slaviša Stanković

and

Tatjana Popović Milovanović

Microorganisms 2023, 11(8), 2122; https://doi.org/10.3390/microorganisms11082122 - 21 Aug 2023

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Abstract

The aim of this study was to establish a link between genetic diversity and the geographic origin of Pectobacterium strains belonging to three species—P. carotovorum, P. versatile, and P. odoriferum—isolated from cabbage in Serbia by comparing their sequences with [...] Read more.

The aim of this study was to establish a link between genetic diversity and the geographic origin of Pectobacterium strains belonging to three species—P. carotovorum, P. versatile, and P. odoriferum—isolated from cabbage in Serbia by comparing their sequences with those of strains sourced from different hosts and countries in Europe, Asia, and North America. Phylogeographic relatedness was reconstructed using the Templeton, Crandall, and Sing’s (TCS) haplotype network based on concatenated sequences of the housekeeping genes dnaX, icdA, mdh, and proA, while pairwise genetic distances were computed by applying the p-distance model. The obtained TCS haplotype networks indicated the existence of high intra-species genetic diversity among strains of all three species, as reflected in the 0.2–2.3%, 0.2–2.5%, and 0.1–1.7% genetic distance ranges obtained for P. carotovorum, P. versatile, and P. odoriferum, respectively. Five new haplotypes (denoted as HPc1–HPc5) were detected among cabbage strains of P. carotovorum, while one new haplotype was identified for both P. versatile (HPv1) and P. odoriferum (HPo1). None of the TCS haplotype networks provided evidence of significant correlation between geographic origin and the determined haplotypes, i.e., the infection origin. However, as haplotype network results are affected by the availability of sequencing data in public databases for the used genes and the number of analyzed strains, these findings may also be influenced by small sample size. Full article

(This article belongs to the Topic New Insights and Case Studies in Specific and Complex Plant Diseases)

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Open AccessReview

An Overview of the Emergence of Plant Pathogen ‘Candidatus Liberibacter solanacearum’ in Europe

by

Vojislav Trkulja

,

Andrija Tomić

,

Slavica Matić

,

Nenad Trkulja

,

Renata Iličić

and

Tatjana Popović Milovanović

Microorganisms 2023, 11(7), 1699; https://doi.org/10.3390/microorganisms11071699 - 29 Jun 2023

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Abstract

In this paper, a comprehensive overview of the ‘Candidatus Liberibacter solanacearum’ presence in Europe was provided. The analyzed findings revealed that, since the first appearance of this pathogen in Finland and Spain in 2008, it has spread to 13 new European countries. [...] Read more.

In this paper, a comprehensive overview of the ‘Candidatus Liberibacter solanacearum’ presence in Europe was provided. The analyzed findings revealed that, since the first appearance of this pathogen in Finland and Spain in 2008, it has spread to 13 new European countries. Therefore, ‘Ca. L. solanacearum’ has spread very quickly across the European continent, as evident from the emergence of new host plants within the Apiaceae, Urticaceae, and Polygonaceae families, as well as new haplotypes of this pathogen. Thus far, 5 of the 15 ‘Ca. L. solanacearum’ haplotypes determined across the globe have been confirmed in Europe (haplotypes C, D, E, U, and H). Fully competent ‘Ca. L. solanacearum’ vectors include Bactericera cockerelli, Trioza apicalis, and B. trigonica; however, only T. apicalis and B. trigonica are presently established in Europe and are very important for plants from the Apiaceae family in particular. Moreover, psyllid species such as B. tremblayi, T. urticae, and T. anthrisci have also been confirmed positive for ‘Ca. L. solanacearum’. Constant monitoring of its spread in the field (in both symptomatic and asymptomatic plants), use of sensitive molecular diagnostic techniques, and application of timely management strategies are, therefore, of utmost importance for the control of this destructive pathogen. Full article

(This article belongs to the Topic New Insights and Case Studies in Specific and Complex Plant Diseases)

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