Role of microbial communities and nitrogen sources in suppressing root rot disease during ginseng cultivation.

Ginsengs, widely acknowledged for their health-promoting properties, are predominantly grown for their roots, necessitating an extended cultivation period of a minimum of 4 to 6 years for maturation. The prolonged growth duration in a specific location makes ginseng plants susceptible to soil-borne ailments, such as root rot, leading to significant detrimental effects. Focusing on the crucial role of the plant microbial community in maintaining ginseng health, the study reveals that repeated and continuous cultivation leads to the collapse of the initial disease-suppressive rhizosphere community, resulting in severe root rot.

Actinomycetota, a central constituent microbe during long-term exposure to diazinon, an organophosphorus insecticide.

Microbial biodegradation is a primary pesticide remediation pathway. Despite diazinon is one of the most frequently used organophosphate insecticides worldwide, its effect on soil microbial community remains obscure. We hypothesize that diazinon exposure reshapes microbial community, among them increased microbes may play a crucial role in diazinon degradation.

Mycobiota community and fungal species response to development stage and fire blight disease in apples.

Fire blight disease, caused by the bacterial pathogen , has been a significant concern for over 50 countries worldwide. The efficacy of chemical pesticides currently available for disease control is limited. To address this issue, research is being conducted to explore environmentally friendly control methods, particularly biological control using beneficial microorganisms.

Analysis of Endophytic Bacterial Communities and Investigation of Core Taxa in Apple Trees.

ire blight disease, caused by Erwinia amylovora, is a devastating affliction in apple cultivation worldwide. Chemical pesticides have exhibited limited effectiveness in controlling the disease, and biological control options for treating fruit trees are limited. Therefore, a relatively large-scale survey is necessary to develop microbial agents for apple trees.

Dynamics of Bacterial Communities by Apple Tissue: Implications for Apple Health.

Herein, we explored the potential of the apple's core microbiota for biological control of , which causes fire blight disease, and analyzed the structure of the apple's bacterial community across different tissues and seasons. Network analysis results showed distinct differences in bacterial community composition between the endosphere and rhizosphere of healthy apples, and eight taxa were identified as negatively correlated with , indicating their potential key role in a new control strategy against the pathogen. This study highlights the critical role of the apple's bacterial community in disease control and provides a new direction for future research in apple production.

Transition from Ginseng Root Rot Disease-Conducive Soil to -Suppressive Soil Mediated by .

Ginseng is a popular medicinal herb with established therapeutic effects such as cardiovascular disease prevention, anticancer effects, and anti-inflammatory effects. However, the slow growth of ginseng due to soilborne pathogens has been a challenge for establishing new plantations. In this study, we investigated root rot disease associated with the microbiota in a ginseng monoculture model system.

Effect of sp. CHK0059 on Strawberry Microbiota Community.

Microalgae are photosynthetic cyanobacteria and eukaryotic microorganisms, mainly living in the water. In agriculture, numerous studies have been conducted to utilize microalgae as a biostimulant resource. has been known to be one such microalga that can promote plant growth by secretion of auxin or cytokinin hormone analogs.

Exploration of Mycobiota in , an Endangered Species.

Orchids live with mycorrhizal fungi in mutualism. This symbiotic relationship plays an essential role in the overall life cycle of orchids from germination, growth, settlement, and reproduction. Among the 1000 species of the orchid, the Korean lady's slipper, , is known as an endangered species.

Genetic Variation of Strawberry Fusarium Wilt Pathogen Population in Korea.

Strawberries are a popular economic crop, and one of the major plantations and exporting countries is Korea in the world. The species complex (FOSC) is a soil-borne pathogen with genetic diversity, resulting in wilt disease in various crops. In Korea, strawberries wilt disease was first reported in the 1980s due to the infection of FOSC, causing significant economic damage every year.

Glutamic acid reshapes the plant microbiota to protect plants against pathogens.

Background: Plants in nature interact with other species, among which are mutualistic microorganisms that affect plant health. The co-existence of microbial symbionts with the host contributes to host fitness in a natural context. In turn, the composition of the plant microbiota responds to the environment and the state of the host, raising the possibility that it can be engineered to benefit the plant.

Investigation of Fungal Strains Composition in Fruit Pollens for Artificial Pollination.

Plants pollination are conducted through various pollinators such as wind, animals, and insects. Recently, the necessity for artificial pollination is drawing attention as the proportion of natural pollinators involved is decreasing over the years. Likewise, the trade in pollen for artificial pollination is also increasing worldwide.

Bacterial Community Structure and the Dominant Species in Imported Pollens for Artificial Pollination.

Pollination is an essential process for plants to carry on their generation. Pollination is carried out in various ways depending on the type of plant species. Among them, pollination by insect pollinator accounts for the most common.

Draft genome sequence data of strain TH2H2, isolated from a tomato flower in Korea.

Members of the genus are known for their production of useful substances, and some species of the genus are recognized to be plant growth-promoting rhizobacteria. TH2H2, isolated from a tomato flower, had antifungal activity. Here, the draft genome sequence of TH2H2 is reported.

Genome-Wide Investigation of 2,4-Diacetylphloroglucinol Protection Genes in .

The compound 2,4-diacetylphloroglucinol (DAPG) is a well-known secondary metabolite produced by spp. that are used as biocontrol agents. DAPG displays a remarkably broad spectrum of toxic activity against pathogens of plants.

Comparison of Microbial Community of Rhizosphere and Endosphere in Kiwifruit.

Understanding the microbial community and function are crucial knowledge for crop management. In this study, bacterial and fungal community structures both rhizosphere and endosphere in kiwifruit were analyzed to gain our knowledge in kiwifruit microbiome. Microbial community in rhizosphere was less variation than endosphere community.

A mutualistic interaction between Streptomyces bacteria, strawberry plants and pollinating bees.

Microbes can establish mutualistic interactions with plants and insects. Here we track the movement of an endophytic strain of Streptomyces bacteria throughout a managed strawberry ecosystem. We show that a Streptomyces isolate found in the rhizosphere and on flowers protects both the plant and pollinating honeybees from pathogens (phytopathogenic fungus Botrytis cinerea and pathogenic bacteria, respectively).

Characterization of Antibacterial Strains against Kiwifruit Bacterial Canker Pathogen.

Kiwifruit ( spp.) is an economically important crop and a bacterial canker disease, caused by pv. (Psa), is the most destructive disease in kiwifruit production.

Evolution of Antibiotic Synthesis Gene Clusters in the TFH56, Isolated from Tomato Flower.

species are known to produce various bioactive metabolites that can prevent plant diseases. Previously, the strain TFH56 was found to inhibit the gray mold pathogen, , in tomato flower. In this study, the genome sequence of strain TFH56 was acquired using the Pacific Biosciences RS II platform.

Comparison of Endophytic Microbial Community in Kiwifruit Plant Cultivars.

The microbiome makes a significant contribution to plant health and endophytes may generate positive effects for the host. However, there is a limited knowledge available concerning the kiwifruit endophyte. Therefore, we discuss endophyte microbiome community structures among the kiwifruit cultivars.

Development qRT-PCR Protocol to Predict Strawberry Fusarium Wilt Occurrence.

Strawberry Fusarium wilt disease, caused by f. sp. , is the most devastating disease in strawberry production.

Distribution of Rhizosphere and Endosphere Fungi on the First-Class Endangered Plant .

Endangered native plant habitats and populations are rapidly disappearing because of climate and environmental changes. As a representative, the abundance of the first-class endangered wild plant, , has been rapidly decreasing in Korea. The purpose of this study was to evaluate the distribution of rhizosphere and endophytic fungi on in its native habitat.

Caryolan-1-ol, an antifungal volatile produced by spp., inhibits the endomembrane system of fungi.

spp. have the ability to produce a wide variety of secondary metabolites that interact with the environment. This study aimed to discover antifungal volatiles from the genus and to determine the mechanisms of inhibition.

wblE2 transcription factor in Streptomyces griseus S4-7 plays an important role in plant protection.

Streptomyces griseus S4-7 was originally isolated from the strawberry rhizosphere as a microbial agent responsible for Fusarium wilt suppressive soils. S. griseus S4-7 shows specific and pronounced antifungal activity against Fusarium oxysporum f.