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Horticulturae
Special Issues
Biological Control of Pre and Postharvest Diseases II
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Biological Control of Pre and Postharvest Diseases II

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Plant Pathology and Disease Management (PPDM)".

Deadline for manuscript submissions: 20 October 2024 | Viewed by 6159

Special Issue Editors

Dr. Alessandra Di Francesco

E-Mail Website
Guest Editor
Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin, 42, 40127 Bologna, Italy
Interests: fruit postharvest fungal diseases; antagonists; biological control
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Gianfranco Romanazzi

E-Mail Website
Guest Editor
Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, Italy
Interests: chitosan; essential oils; gray mold; postharvest decay; seedborne pathogens
Special Issues, Collections and Topics in MDPI journals
Dr. Rosario Torres

E-Mail Website
Guest Editor
IRTA, Postharvest Programme, Edifici Fruitcentre, Parc Científic i Tecnològic Agroalimentari de Lleida, Parc de Gardeny, 25003 Lleida, Spain
Interests: postharvest fungal diseases of fruit; epidemiology; biological control; alternative methods; host-pathogen interaction studies
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The open access journal Horticulturae (IF: 2.923; Q1 in Horticulture) is pleased to announce that we have launched a new Special Issue titled “Biological Control of Pre and Postharvest Diseases II”. Given your expertise in this field, we would like to invite you to contribute an article to the present Special Issue.

Consumers and retailers requires fruit and vegetables of high quality and with reduced or no residues of synthetic fungicides, then alternatives are desirable. However, these alternatives are not easy to be developed and turned in practice and need extensive innovation and trials at different scale levels to be made available for the agricultural system. This Special Issue will cover all alternatives to syntetic fungicides based on the use of biocontrol agents, physical means, and natural compounds for the maneageent of pre and postharvest diseases of fresh fruit and vegetables. Knowing your research activity, we are confident you can take the opportunity to share your results in this Special Issue.

Dr. Alessandra Di Francesco
Prof. Dr. Gianfranco Romanazzi
Dr. Rosario Torres
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Horticulturae is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • biological control
  • fungal diseases
  • antagonists
  • pre- and postharvest phases
  • fruits
  • horticultural products
  • alternative methods

Published Papers (4 papers)

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Research

13 pages, 1224 KiB  
Article
In Vitro Evaluation of Chitosan Hydrochloride and COS (Chito-Oligosaccharides)-OGA (Oligo-Galacturonides) on Phytopathogenic Fungi and Escherichia coli
by Sarah Mojela Makau, Marwa Moumni, Lucia Landi, Domenico Pirozzi, Filomena Sannino and Gianfranco Romanazzi
Horticulturae 2023, 9(12), 1275; https://doi.org/10.3390/horticulturae9121275 - 28 Nov 2023
Cited by 1 | Viewed by 1246
Abstract
Use of novel alternative compounds in agriculture is being promoted to reduce synthetic pesticides. An in vitro study was conducted to evaluate antimicrobial and antioxidant activities of chitosan hydrochloride (CH) and COS (chito-oligosaccharides)-OGA (oligo-galacturonides) at concentrations of 1%, 0.5%, 0.25%, 0.1%, 0.05%, and [...] Read more.
Use of novel alternative compounds in agriculture is being promoted to reduce synthetic pesticides. An in vitro study was conducted to evaluate antimicrobial and antioxidant activities of chitosan hydrochloride (CH) and COS (chito-oligosaccharides)-OGA (oligo-galacturonides) at concentrations of 1%, 0.5%, 0.25%, 0.1%, 0.05%, and 0.025%. COS-OGA at 1% and 0.5% concentrations completely inhibited mycelial growth of Alternaria alternata, Alternaria brassicicola, Botrytis cinerea, Monilinia laxa, Monilinia fructigena, and Monilinia fructicola. Further, complete inhibition was observed with 0.25% COS-OGA for M. fructigena and M. laxa. Inhibition for B. cinerea, M. fructicola, A. alternata, and A. brassicicola at 0.25% COS-OGA was 86.75%, 76.31%, 69.73%, and 60.45%, respectively. M. laxa and M. fructigena were completely inhibited by CH concentrations of 1–0.25% and M. fructicola by concentrations of 1–0.5%. At CH 0.25%, inhibition for M. fructicola, A. brassicicola, A. alternata, and B. cinerea was 93.99%, 80.99%, 69.73%, and 57.23%, respectively. CH showed effective antibacterial activity against foodborne Escherichia coli. COS-OGA had higher antioxidant activity than CH when assessed by DPPH and hydroxyl radical scavenging assays. Our findings offer insights into the antimicrobial efficacy and mechanisms of action of these novel compounds, which have the potential to serve as alternatives to synthetic pesticides. In vivo investigations are required to validate the prospective application of these treatments for pre- and postharvest disease management. Full article
(This article belongs to the Special Issue Biological Control of Pre and Postharvest Diseases II)
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15 pages, 7071 KiB  
Article
Exploring Wild and Local Fruits as Sources of Promising Biocontrol Agents against Alternaria spp. in Apples
by Keziban Sinem Tulukoğlu-Kunt, Mustafa Özden and Alessandra Di Francesco
Horticulturae 2023, 9(10), 1156; https://doi.org/10.3390/horticulturae9101156 - 22 Oct 2023
Cited by 1 | Viewed by 1483
Abstract
Biological control agents (BCAs) are a promising option for managing postharvest diseases. Their environmentally friendly nature makes them valuable for sustainable and eco-friendly postharvest disease management. This study evaluated the antagonistic potential of epiphytic yeasts isolated from a local apple genotype known as [...] Read more.
Biological control agents (BCAs) are a promising option for managing postharvest diseases. Their environmentally friendly nature makes them valuable for sustainable and eco-friendly postharvest disease management. This study evaluated the antagonistic potential of epiphytic yeasts isolated from a local apple genotype known as “Niğde Elması” and a range of wild fruits: rosehip, hawthorn, and wild pear. There were 375 yeast isolates obtained and screened in vitro and in vivo. Initially selected were 32 isolates able to inhibit the growth of Alternaria alternata mycelia in the in vitro experiments and identified using molecular methods as candidate BCAs. These isolates were identified as Aureobasidium pullulans using sequence analysis of the internal transcribed spacer (ITS) and the translation elongation factor EF-1α gene (EF1α). Based on two rounds of in vivo screening, four isolates were subsequently selected for their capability to control the infection of apple fruits under high inoculum pressure. Finally, their volatile and non-volatile antimicrobial activity was tested against Alternaria spp. These findings showed how wild fruits and a local apple genotype could represent a promising source for new BCA isolation. However, further studies are needed to reveal the mechanisms of action of these putative BCAs for application during the postharvest processing and storage of apples. Full article
(This article belongs to the Special Issue Biological Control of Pre and Postharvest Diseases II)
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15 pages, 3680 KiB  
Article
Effectiveness of a Novel Endophyte Bacillus velezensis Strain B1 in the Biocontrol of Pear Postharvest Ring Rot
by Suling Yang, Meifang Song, Limei Qi, Guijun Liu, Sijing Zhou, Yuchen Qiao, Ping Wang, Haike Gu and Liqin Wu
Horticulturae 2023, 9(9), 1049; https://doi.org/10.3390/horticulturae9091049 - 19 Sep 2023
Cited by 1 | Viewed by 914
Abstract
Pear ring rot caused by Botryosphaeria dothidea severely affects the quality and storage life of pear fruit. Plant endophytes are potential new sources of biocontrol agents due to their abilities to produce novel bioactive products. In this work, we focused on an endophytic [...] Read more.
Pear ring rot caused by Botryosphaeria dothidea severely affects the quality and storage life of pear fruit. Plant endophytes are potential new sources of biocontrol agents due to their abilities to produce novel bioactive products. In this work, we focused on an endophytic strain B1, which was isolated from roots of Dendrobium huoshanense. Notably, strain B1 exhibited strongly inhibitory effects against the growth of Botryosphaeria dothidea with an inhibition rate of 73.2% after 1 week of co-cultivation. Furthermore, it displayed a broad-spectrum inhibitory activity. Strain B1 also effectively delayed the onset of ring rot caused by B. dothidea in pear fruit and reduced the lesion diameter by 73.4%. Strain B1 was identified as Bacillus velezensis based on core-genome phylogeny. Genome mining with antiSMASH revealed 13 potential gene clusters involved in antimicrobial metabolites. Three main groups of lipopeptides (surfactin, iturin and fengycin) were identified with MALDI-TOF-MS, and the lipopeptides in the inhibition zone were greatly upregulated by B. dothidea; especially, fengycin isoforms were detected with higher abundance. These results proved that lipopeptides produced by strain B1 had significant antagonistic effect on B. dothidea. In conclusion, our results suggest that strain B1 has potential applications in the biocontrol of B. dothidea in postharvest fruit. Full article
(This article belongs to the Special Issue Biological Control of Pre and Postharvest Diseases II)
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11 pages, 559 KiB  
Article
Evaluation of Native Bacterial Isolates for Control of Cucumber Powdery Mildew under Greenhouse Conditions
by Kamal Ahmed M. Abo-Elyousr, Mohamed Al-Sadek Abd Al-Haleim Seleim, Najeeb Marei Almasoudi and Hadeel Magdy Mohammed Khalil Bagy
Horticulturae 2022, 8(12), 1143; https://doi.org/10.3390/horticulturae8121143 - 5 Dec 2022
Cited by 5 | Viewed by 1863
Abstract
Cucumber plants are often attacked by various pathogens, which can considerably decrease production and cause significant losses. One of the most prevalent fungal diseases is powdery mildew, caused by an obligate pathogen, Podosphaera xanthii. It is a serious disease that causes significant [...] Read more.
Cucumber plants are often attacked by various pathogens, which can considerably decrease production and cause significant losses. One of the most prevalent fungal diseases is powdery mildew, caused by an obligate pathogen, Podosphaera xanthii. It is a serious disease that causes significant damage to the whole plant, i.e., leaves, fruits, and stems, under both greenhouse and field conditions. The main objective of this result is to assess the effectiveness of Bacillus spp. against cucumber powdery mildew under in vitro and in vivo conditions. Treatment with B. licheniformis and B. aerius culture filtrates reduced the conidial germination of the pathogen by 60 and 85%, respectively. Under greenhouse conditions, spraying cucumber plants with both microorganisms was effective at reducing powdery mildew disease severity. High reductions of disease severity were achieved by treatment of B. licheniformis as a cell suspension and B. aerius strain as culture filtrate, 45.3 and 77.3%, respectively, two days before inoculation. Additionally, treatment with these bacterial strains resulted in a significant increase in the fresh and dry weights of the cucumber plants. The highest increase of fresh and dry weight was found with B. licheniformis CS and B. aerius strain CF treatment at two days before or after infection. After treatment with the bioagents, the content of total phenols, polyphenol oxidase, and peroxidase was enhanced in treatment plants. The use of B. licheniformis and B. aerius as foliar sprays significantly induced resistance to P. xanthii in cucumber plants and stimulated many biochemical functions. Therefore, we propose B. licheniformis and B. aerius as an effective alternative to harmful chemicals. Full article
(This article belongs to the Special Issue Biological Control of Pre and Postharvest Diseases II)
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