Potential of Pantoea dispersa as an effective biocontrol agent for black rot in sweet potato

Jiang, Lingmin; Jeong, Jae Chul; Lee, Jung-Sook; Park, Jeong Mee; Yang, Jung‐Wook; Lee, Myoung Hui; Choi, Seung Hee; Kim, Cha Young; Kim, Dae-Hyuk; Kim, Suk Weon; Lee, Ji-Young

doi:10.1038/s41598-019-52804-3

Cited by 73 publications

(38 citation statements)

References 65 publications

(56 reference statements)

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“…as endophytes were carried by seeds of rice, wheat and crabgrass [ 62 , 63 , 64 ]. Some members of Pantoea , belonging to the PGPR, were used as an effective biocontrol agent, whereas Pantoea stewartii was a pathogen of maize [ 65 , 66 , 67 ]. Inoculation with P. triticisoli significantly enriched Pseudomonas in both the rhizosphere and root endosphere under all N levels, especially under low N and medium N levels.…”

Section: Discussionmentioning

confidence: 99%

Diazotroph Paenibacillus triticisoli BJ-18 Drives the Variation in Bacterial, Diazotrophic and Fungal Communities in the Rhizosphere and Root/Shoot Endosphere of Maize

Qin

Chen

2021

IJMS

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Application of diazotrophs (N2-fixing microorganisms) can decrease the overuse of nitrogen (N) fertilizer. Until now, there are few studies on the effects of diazotroph application on microbial communities of major crops. In this study, the diazotrophic and endospore-forming Paenibacillus triticisoli BJ-18 was inoculated into maize soils containing different N levels. The effects of inoculation on the composition and abundance of the bacterial, diazotrophic and fungal communities in the rhizosphere and root/shoot endosphere of maize were evaluated by sequencing the 16S rRNA, nifH gene and ITS (Inter Transcribed Spacer) region. P. triticisoli BJ-18 survived and propagated in all the compartments of the maize rhizosphere, root and shoot. The abundances and diversities of the bacterial and diazotrophic communities in the rhizosphere were significantly higher than in both root and shoot endospheres. Each compartment of the rhizosphere, root and shoot had its specific bacterial and diazotrophic communities. Our results showed that inoculation reshaped the structures of the bacterial, diazotrophic and fungal communities in the maize rhizosphere and endosphere. Inoculation reduced the interactions of the bacteria and diazotrophs in the rhizosphere and endosphere, while it increased the fungal interactions. After inoculation, the abundances of Pseudomonas, Bacillus and Paenibacillus in all three compartments, Klebsiella in the rhizosphere and Paenibacillus in the root and shoot were significantly increased, while the abundances of Fusarium and Giberella were greatly reduced. Paenibacillus was significantly correlated with plant dry weight, nitrogenase, N2-fixing rate, P solubilization and other properties of the soil and plant.

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Section: Discussionmentioning

confidence: 99%

Diazotroph Paenibacillus triticisoli BJ-18 Drives the Variation in Bacterial, Diazotrophic and Fungal Communities in the Rhizosphere and Root/Shoot Endosphere of Maize

Qin

Chen

2021

IJMS

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“…With the increasing negative environmental and health effects of chemical fungicides and the increasing resistance of plant pathogens to these fungicides, the use of fungi as biological fungicides for the control of plant diseases has garnered attention from scientists worldwide (Jiang et al, 2019). The use of pathogenic fungi for controlling plant fungal diseases has broad and significant developmental prospects for establishing environmentally friendly ecological agriculture, improving the quality of agricultural products, and developing sustainable agriculture strategies.…”

Section: Disease Controlmentioning

confidence: 99%

Research Progress on Phytopathogenic Fungi and Their Role as Biocontrol Agents

et al. 2021

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Phytopathogenic fungi decrease crop yield and quality and cause huge losses in agricultural production. To prevent the occurrence of crop diseases and insect pests, farmers have to use many synthetic chemical pesticides. The extensive use of these pesticides has resulted in a series of environmental and ecological problems, such as the increase in resistant weed populations, soil compaction, and water pollution, which seriously affect the sustainable development of agriculture. This review discusses the main advances in research on plant-pathogenic fungi in terms of their pathogenic factors such as cell wall-degrading enzymes, toxins, growth regulators, effector proteins, and fungal viruses, as well as their application as biocontrol agents for plant pests, diseases, and weeds. Finally, further studies on plant-pathogenic fungal resources with better biocontrol effects can help find new beneficial microbial resources that can control diseases.

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“…Others have bioremediation potential, with the ability to degrade herbicides without generating toxic products. P. dispersa strains from sweet potato showed strong inhibition activity against the pathogenic fungus Ceratocytis fimbriata [ 142 ]. Interesting results were recorded for P. dispersa and P. agglomerans strains that were isolated from wheat [ 57 ].…”

Section: Discussionmentioning

confidence: 99%

Bacterial Endophytes of Spring Wheat Grains and the Potential to Acquire Fe, Cu, and Zn under Their Low Soil Bioavailability

Makar

Kuźniar

Patsula

et al. 2021

Biology

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Wheat grains are usually low in essential micronutrients. In resolving the problem of grain micronutritional quality, microbe-based technologies, including bacterial endophytes, seem to be promising. Thus, we aimed to (1) isolate and identify grain endophytic bacteria from selected spring wheat varieties (bread Oksamyt myronivs’kyi, Struna myronivs’ka, Dubravka, and emmer Holikovs’ka), which were all grown in field conditions with low bioavailability of microelements, and (2) evaluate the relationship between endophytes’ abilities to synthesize auxins and the concentration of Fe, Zn, and Cu in grains. The calculated biological accumulation factor (BAF) allowed for comparing the varietal ability to uptake and transport micronutrients to the grains. For the first time, bacterial endophytes were isolated from grains of emmer wheat T. turgidum subsp. dicoccum. Generally, the 12 different isolates identified in the four varieties belonged to the genera Staphylococcus, Pantoea, Sphingobium, Bacillus, Kosakonia, and Micrococcus (NCBI accession numbers: MT302194—MT302204, MT312840). All the studied strains were able to synthesize the indole-related compounds (IRCs; max: 16.57 µg∙mL−1) detected using the Salkowski reagent. The IRCs produced by the bacterial genera Pantoea spp. and Bacillus spp. isolated from high-yielding Oksamyt myronivs’kyi and Holikovs’ka grains may be considered as one of the determinants of the yield of wheat and its nutritional characteristics.

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Potential of Pantoea dispersa as an effective biocontrol agent for black rot in sweet potato

Cited by 73 publications

References 65 publications

Diazotroph Paenibacillus triticisoli BJ-18 Drives the Variation in Bacterial, Diazotrophic and Fungal Communities in the Rhizosphere and Root/Shoot Endosphere of Maize

Diazotroph Paenibacillus triticisoli BJ-18 Drives the Variation in Bacterial, Diazotrophic and Fungal Communities in the Rhizosphere and Root/Shoot Endosphere of Maize

Research Progress on Phytopathogenic Fungi and Their Role as Biocontrol Agents

Bacterial Endophytes of Spring Wheat Grains and the Potential to Acquire Fe, Cu, and Zn under Their Low Soil Bioavailability

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