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Special Issue "Biological Control for Plant Disease"

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A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Crop Protection, Diseases, Pest and Weeds".

Deadline for manuscript submissions: 25 June 2023 | Viewed by 3829

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Special Issue Editors

Prof. Dr. Yi-Hsien Lin

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Guest Editor

Department of Plant Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan
Interests: biological control; fermentation; plant pathogenic bacteria; plant immunity; plant pathology

Dr. Ying-Hong Lin

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Guest Editor

Department of Plant Medicine, National Pingtung University of Science and Technology, Pingtung, Taiwan
Interests: molecular detection; DNA fingerprints; molecular diagnosis; phytopathology; biological control; disease management; plasma sterilization technology
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Dear Colleagues,

The development of means for plant disease control is an important topic for researchers in the agricultural sciences. The use of fungicides is also an extremely important method to reduce the occurrence of plant diseases. However, under the concerns on environmental friendliness and food safety, the grower is gradually turning to developing integrated strategies to manage plant diseases. Under this demand, biological control has become one of the most important development directions. The biological control of plant diseases is mainly based on the use of microorganisms with different functions on plants to reduce the occurrence of diseases, and even a variety of biological control agents have been commercialized and implemented in the field.

This Special Issue focuses on reducing the occurrence of plant diseases in functional microorganisms by the application of biocontrol agents to crops in the greenhouse/field. This Special Issue on Biological Control for Plant Diseases will include interdisciplinary studies, including microbiology, plant pathology, and fermentation. Research articles will cover a broad range of disease control by using biological control agents on crops. All types of articles, such as original research and reviews are welcome.

Prof. Dr. Yi-Hsien Lin
Dr. Ying-Hong Lin
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. Agriculture 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 2000 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

agricultural management
antagonistic activity
beneficial microorganisms
biocontrol agents
fermentation
induced resistance
plant growth promoting rhizobacteria

Published Papers (3 papers)

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Research

Open AccessArticle

Seed Treatment with Calcium Carbonate Containing Bacillus amyloliquefaciens PMB05 Powder Is an Efficient Way to Control Black Rot Disease of Cabbage

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Agriculture 2023, 13(5), 926; https://doi.org/10.3390/agriculture13050926 - 23 Apr 2023

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Abstract

Black rot disease is a serious bacterial disease that harms vegetable crops of the Brassica genus (especially cabbage plants) worldwide. The causal agent, Xanthomonas campestris pv. campestris (Xcc), is a seed-borne pathogen that primarily infects seedlings. Previous studies suggest that the bacterial strain, Bacillus amyloliquefaciens PMB05, can intensify the plant immune responses of cabbage against black rot disease and reduce disease occurrence. In plant immunity, several reactions occur during a pathogen attack, but the elevation of calcium ion concentration in plant cells is essential in the induction of plant defense responses. Therefore, this study aims to investigate whether disease control of black rot disease in cabbage plants can be improved by integrating calcium carbonate in the formulation for preparing B. amyloliquefaciens PMB05. Firstly, we found the addition of calcium carbonate in the formulation revealed to have significantly increased the cell and endospore populations of B. amyloliquefaciens PMB05 in the fermentation liquids. To increase the convenience of disease control in the field, these fermentation liquids were converted to powder form for subsequent analysis. Results revealed that the grown seedlings from seeds, mixed with PMB05 powders, significantly intensified plant immune responses and improved black rot disease control. We further compared distinct seed treatments using one PMB05 powder to evaluate its feasibility in field application. The results demonstrated that the disease control efficacy and yield of cabbage were significantly improved in the seed treatment with the powder (SD-160C2) to 56.46% and 5.91%, respectively, at 10 weeks post transplanting. Interestingly, the seed treatment combined with a calcium-containing commercial fertilizer spraying treatment did not increase the control efficacy of black rot disease, but it significantly increased the weight of cabbages after harvest. We concluded that the seed treatment with calcium carbonate-containing Bacillus amyloliquefaciens PMB05 powder is an efficient way to control black rot disease in cabbage. Full article

(This article belongs to the Special Issue Biological Control for Plant Disease)

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Open AccessArticle

From Endophyte Community Analysis to Field Application: Control of Apple Canker (Neonectria ditissima) with Epicoccum nigrum B14-1

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Agriculture 2023, 13(4), 809; https://doi.org/10.3390/agriculture13040809 - 31 Mar 2023

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Abstract

Apple canker, caused by Neonectria ditissima (Tul. and C. Tul.) Samuels and Rossman, is a major disease of apples (Malus domestica) worldwide. N. ditissima infects through natural and artificial wounds. Infected wood develops canker lesions which girdle branches and main stems causing reduced yield and tree death. N. ditissima is difficult to control; removal of inoculum (cankers) is expensive and therefore seldom practiced, whilst effective chemical products are being banned and no biocontrol products have been found to be effective against N. ditissima. This study used cues from a previous apple endophyte community analysis to isolate and test fungal endophytes belonging to the genus Epicoccum as potential endophytic biocontrol agents. Epicoccum nigrum B14-1, isolated from healthy apple trees, antagonised N. ditissima in vitro and reduced the incidence of N. ditissima infections of leaf scars by 46.6% and pruning wounds by 5.3% in field conditions at leaf fall. Autumn application of B14-1 conidia increased E. nigrum abundance in apple tissues at 10–20 days post-inoculation by ca. 1.5×, but this returned to control levels after one year. E. nigrum B14-1 did not cause detrimental effects on apple foliage, buds, fruit, or growth and could therefore present a new biocontrol agent to manage N. ditissima in commercial apple production. Full article

(This article belongs to the Special Issue Biological Control for Plant Disease)

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Open AccessFeature PaperArticle

Selection, Formulation, and Field Evaluation of Bacillus amyloliquefaciens PMB01 for Its Application to Manage Tomato Bacterial Wilt Disease

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Agriculture 2022, 12(10), 1714; https://doi.org/10.3390/agriculture12101714 - 18 Oct 2022

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Abstract

Bacterial wilt caused by the soil-borne pathogen Ralstonia solanacearum is one of the most devastating diseases in solanaceous plants. No agrochemicals are available to manage bacterial wilt effectively. A Bacillus amyloliquefaciens strain designated PMB01 was recovered from the cabbage rhizosphere and was found to be capable of inhibiting the growth of R. solanacearum. The PMB01 strain was highly resistant to extreme pH, heat, high salt salinity, and various fungicides. In contrast, PMB01 was sensitive to copper-based compounds, streptomycin, and tetracycline. The efficacy of the PMB01 strain in suppressing R. solanacearum and bacterial wilt in tomatoes was significantly improved when the culture medium was supplemented with 1% (w/v) soybean meal. PMB01 was in a 500-liter tank for the pilot production, and the resultant broth could effectively reduce the severity of tomato bacterial wilt in greenhouse trials. The PMB01 fermentation broth was mixed with 10% corn starch and 30% maltodextrin to make a wettable powder (WP). PMB01 could survive in the wettable powder for more than two years without losing its antagonistic activity. In ten field trials, tomato plants treated with 50, 100, or 200-fold dilutions of PMB01 WP reduced bacterial wilt severity by more than 67% compared to the mock (water control) treatment. This work revealed that the effectiveness of the rhizobacterium PMB01 to antagonize R. solanacearum was greatly improved when the culture medium was supplemented with 1% (w/v) soybean meal, indicating that PMB01 is an ideal bio-agent candidate. A durable format suitable for storage was also developed. Similar concepts may be applied to other bio-agent candidates to improve their effectiveness in disease management. Full article

(This article belongs to the Special Issue Biological Control for Plant Disease)

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