Bacillus spp. as Biocontrol Agents of Root Rot and Phytophthora Blight on Ginseng

Bae, Yeoung Seuk; Park, Kyung Seok; Kim, Choong Hoe

doi:10.5423/ppj.2004.20.1.063

Cited by 17 publications

(10 citation statements)

References 5 publications

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“…P. polymyxa alone has been shown to provide protection to cauliflower [42], pea [43], ginseng [44], cucumber [45], chickpea [46], peanut [47], soybean [48], pepper [49], and more. Other species of Paenibacillus that have biocontrol properties include P. alvei [50], P. brasilensis [51], P. dendritiformis [52], P. ehimensis [53], P. elgii [54], P. kobensis [55], P. lentimorbus [56], P. macerans [57], P. peoriae [58], and P. thiaminolyticus [59]. …”

Section: Biocontrolmentioning

confidence: 99%

Current knowledge and perspectives of Paenibacillus: a review

et al. 2016

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Isolated from a wide range of sources, the genus Paenibacillus comprises bacterial species relevant to humans, animals, plants, and the environment. Many Paenibacillus species can promote crop growth directly via biological nitrogen fixation, phosphate solubilization, production of the phytohormone indole-3-acetic acid (IAA), and release of siderophores that enable iron acquisition. They can also offer protection against insect herbivores and phytopathogens, including bacteria, fungi, nematodes, and viruses. This is accomplished by the production of a variety of antimicrobials and insecticides, and by triggering a hypersensitive defensive response of the plant, known as induced systemic resistance (ISR). Paenibacillus-derived antimicrobials also have applications in medicine, including polymyxins and fusaricidins, which are nonribosomal lipopeptides first isolated from strains of Paenibacillus polymyxa. Other useful molecules include exo-polysaccharides (EPS) and enzymes such as amylases, cellulases, hemicellulases, lipases, pectinases, oxygenases, dehydrogenases, lignin-modifying enzymes, and mutanases, which may have applications for detergents, food and feed, textiles, paper, biofuel, and healthcare. On the negative side, Paenibacillus larvae is the causative agent of American Foulbrood, a lethal disease of honeybees, while a variety of species are opportunistic infectors of humans, and others cause spoilage of pasteurized dairy products. This broad review summarizes the major positive and negative impacts of Paenibacillus: its realised and prospective contributions to agriculture, medicine, process manufacturing, and bioremediation, as well as its impacts due to pathogenicity and food spoilage. This review also includes detailed information in Additional files 1, 2, 3 for major known Paenibacillus species with their locations of isolation, genome sequencing projects, patents, and industrially significant compounds and enzymes. Paenibacillus will, over time, play increasingly important roles in sustainable agriculture and industrial biotechnology.Electronic supplementary materialThe online version of this article (doi:10.1186/s12934-016-0603-7) contains supplementary material, which is available to authorized users.

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Section: Biocontrolmentioning

confidence: 99%

Current knowledge and perspectives of Paenibacillus: a review

et al. 2016

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“…Four bacterial strains were reported to be effective for control of ginseng diseases such as Phytophthora blight caused by Phytophthora cactorum and root rot caused by C. destructans (Bae et al, 2004;Sang et al, 2006). Two bacterial isolates strongly antagonistic to C. destructans were isolated during the survey of biocontrol agents for ginseng root rot.…”

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confidence: 99%

Biocontrol Efficacies of Bacillus Species Against Cylindrocarpon destructans Causing Ginseng Root Rot

Jang¹,

Kim²,

Kim³

2011

The Plant Pathology Journal

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Two antifungal bacteria were selected from forest soils during the screening of microorganisms antagonistic to Cylindrocarpon destructans, a cause of ginseng root rot. The antifungal bacteria were identified as Bacillus subtilis (I4) and B. amyloliquefaciens (yD16) based on physiological and cultural characteristics, the Biolog program, and 16S rRNA gene sequencing analyses. Antagonistic activity of both bacterial isolates to C. destructans increased with increasing temperature. More rapid starch hydrolytic activity of the bacteria was seen on starch agar at higher temperatures than at lower temperatures, and in the higher density inoculum treatment than in the lower density inoculum treatment. The bacterial isolates failed to colonize ginseng root the root tissues inoculated with the bacteria alone at an inoculum density of 1 × 10 6 cfu/ml, but succeeded in colonizing the root tissues co-inoculated with the bacteria and C. destructans. Scanning electron microscopy showed that the pathogen was damaged by the low-density inoculum treatment with the bacterial isolates as much as by the high-density inoculum treatment. Both bacterial isolates were more effective in reducing root rot when they were treated at a concentration of 1 × 10 6 cfu/ ml than at 1 × 10 8 cfu/ml. Also, only the former treatment induced prominent wound periderm formation, related to structural defense against pathogen infection. The results suggest that the bacterial antagonists may have high potential as biocontrol agents against ginseng root rot at relatively low-inoculum concentrations.

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“…Bae et al. [42] found that Bacillus spp. can be used to prevent and cure root rot resulting from Fusarium solani and Phytophthora blight resulting from Phytophthora cactorum .…”

Section: Discussionmentioning

confidence: 99%

An investigation of Panax ginseng Meyer growth promotion and the biocontrol potential of antagonistic bacteria against ginseng black spot

Sun

Yang

Zhang

et al. 2018

Journal of Ginseng Research

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BackgroundGinseng black spot disease resulting from Alternaria panax Whuetz is a common soil-borne disease, with an annual incidence rate higher than 20–30%. In this study, the bacterial strains with good antagonistic effect against A. panax are screened.MethodsA total of 285 bacterial strains isolated from ginseng rhizosphere soils were screened using the Kirby–Bauer disk diffusion method and the Oxford cup plate assay. We analyzed the antifungal spectrum of SZ-22 by confronting incubation. To evaluate the efficacy of biocontrol against ginseng black spot and for growth promotion by SZ-22, we performed pot experiments in a plastic greenhouse. Taxonomic position of SZ-22 was identified using morphology, physiological, and biochemical characteristics, 16S ribosomal DNA, and gyrB sequences.ResultsSZ-22 (which was identified as Brevundimonas terrae) showed the strongest inhibition rate against A. panax, which showed 83.70% inhibition, and it also provided broad-spectrum antifungal effects. The inhibition efficacies of the SZ-22 bacterial suspension against ginseng black spot reached 82.47% inhibition, which is significantly higher than that of the 25% suspension concentrate azoxystrobin fungicide treatment (p < 0.05). Moreover, the SZ-22 bacterial suspension also caused ginseng plant growth promotion as well as root enhancement.ConclusionAlthough the results of the outdoor pot-culture method were influenced by the pathogen inoculum density, the cropping history of the field site, and the weather conditions, B. terrae SZ-22 controlled ginseng black spot and promoted ginseng growth successfully. This study provides resource for the biocontrol of ginseng black spot.

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Bacillus spp. as Biocontrol Agents of Root Rot and Phytophthora Blight on Ginseng

Cited by 17 publications

References 5 publications

Current knowledge and perspectives of Paenibacillus: a review

Current knowledge and perspectives of Paenibacillus: a review

Biocontrol Efficacies of Bacillus Species Against Cylindrocarpon destructans Causing Ginseng Root Rot

An investigation of Panax ginseng Meyer growth promotion and the biocontrol potential of antagonistic bacteria against ginseng black spot

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