Anthocyanin-enriched polyphenols from the flower petals of L. (Malvaceae, AHs) possess anti-septic shock, anti-oxidant, and anti-melanogenic properties. However, whether AHs positively or negatively regulate ultraviolet B (UVB)-mediated photoaging and photodamage remains unclear.
View Article and Find Full Text PDFAn understanding of the contribution of secondary metabolites (SMs) to the antagonistic and biocontrol activities of bacterial biocontrol agents serves to improve biocontrol potential of the strain. In this study, to evaluate the contribution of each SM produced by NBC275 (Pf275) to its antifungal and biocontrol activity, we combined analysis of the genome with our previous study of transposon (Tn) mutants. Thirteen Tn mutants, which belonged to 6 biosynthetic gene clusters (BGCs) of a total 14 BGCs predicted by the antiSMASH tool were identified by the reduction of antifungal activity.
View Article and Find Full Text PDFAntonie Van Leeuwenhoek
July 2020
A Gram-stain-negative, non-motile, rod-shaped bacterial strain, designated NBC 122, was isolated from freshwater of the Nakdong River Republic of Korea. Growth occurred at pH 5.0-8.
View Article and Find Full Text PDFMicrobiol Resour Announc
January 2020
sp. strain NBC 122, isolated from freshwater of the Nakdong River in the Republic of Korea, was previously characterized as a plant growth-promoting bacterium. Here, we report the genome sequence of sp.
View Article and Find Full Text PDFA Gram-negative, non-motile, rod-shaped bacterial strain, designated GS13, was isolated from sediments in a branch of the Nackdong River in Sangju, Korea. Optimal growth occurred at pH 7.0, 20 °C, and 0% NaCl.
View Article and Find Full Text PDFA yellow-pigmented bacterial strain, GS03, was isolated from sediment in a branch of the Nackdong River in Sangju, Korea. Cells were observed to be Gram-negative, aerobic and rod-shaped with gliding motility, and to be positive for catalase and oxidase. Growth was found to occur at 4-30 °C (optimum 25 °C), at pH 7.
View Article and Find Full Text PDFFungi produce various secondary metabolites that have beneficial and harmful effects on other organisms. Those bioactive metabolites have been explored as potential medicinal and antimicrobial resources. However, the activities of the culture filtrate (CF) and metabolites of white-rot fungus () have been underexplored.
View Article and Find Full Text PDFInt J Syst Evol Microbiol
June 2019
A Gram-stain-negative, catalase- and oxidase-positive, non-motile bacterium, designated F02, was isolated from of gut of Cincticostellalevanidovae (Tshernova). Growth occurred at a temperature range of 4-30 °C, at pH 6-9 and in the presence of 0-0.5 % (w/v) NaCl.
View Article and Find Full Text PDFPatient-derived xenograft (PDX) models are useful tools for tumor biology research and testing the efficacy of candidate anticancer drugs targeting the druggable mutations identified in tumor tissue. However, it is still unknown how much of the genetic alterations identified in primary tumors are consistently detected in tumor tissues in the PDX model. In this study, we analyzed the genetic alterations of three primary colorectal cancers (CRCs) and matched xenograft tissues in PDX models using a next-generation sequencing cancer panel.
View Article and Find Full Text PDFMaintenance of a beneficial microbial community, especially in the rhizosphere, is indispensable for plant growth and agricultural sustainability. In this sense, plant growth-promoting rhizobacteria (PGPR) have been extensively studied for their role in plant growth promotion and disease resistance. However, the impact of introducing PGPR strains into rhizosphere microbial communities is still underexplored.
View Article and Find Full Text PDFThe stringent response (SR), which is activated by accumulation of (p)ppGpp under conditions of growth-inhibiting stresses, plays an important role on growth and virulence in . Herein, we carried out a genome-wide screen using transposon random mutagenesis to identify genes controlled by SR in a (p)ppGpp-overproducing mutant strain. One of the identified SR target genes was encoding flagellin.
View Article and Find Full Text PDFUnderstanding the mechanisms underlying biocontrol activity in biocontrol agents is indispensable to implement biological control. However, the understanding of specific mechanisms for nutrient competition in nutrient limited environments is still limited. This study was performed to control green mold of postharvest satsuma mandarin (mandarin) using Pseudomonas putida JBC17 (JBC17), and identify the genes involved in nutrient competition.
View Article and Find Full Text PDFBacterial leaf blight (BLB) caused by Xanthomonas oryzae pv. oryzae (Xoo) is a very serious disease in rice-growing regions of the world. In spite of their economic importance, there are no effective ways of protecting rice plants from this disease.
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