Original Paper
Actinobacteria and Proteobacteria but a shift towards Proteobacteria was observed with increasing arsenic concentration, and number of Actinobacteria eventually decreases. PCA (Principle Component Analysis) plot of bacterial community composition indicated a distinct resemblance among high arsenic content samples, while low arsenic content samples remained separated from others. Cluster analysis of soil parameters identifies three clusters, each of them was related to the arsenic content. Further, cluster
Semanti Basu,
Tanima Paul,
Priya Yadav,
Abhijit Debnath,
Keka Sarkar
Polish Journal of Microbiology , ISSUE 2, 209–221
Research Article
Truffles (Tuber spp.) are ascomycete hypogeous fungi, which form ectomycorrhizae with roots of trees, shrubs and herbaceous plants. Their fruiting bodies are valued for their distinctive aroma. The aroma might be partially due to complex bacterial community which colonizes their fruiting bodies. Some bacterial species are also believed to promote the truffle’ fruitification due to the fixation of nitrogen inside the developing truffles. Although truffles, especially of the species Tuber
Marta Siebyła,
Dorota Hilszczańska
Postępy Mikrobiologii - Advancements of Microbiology , ISSUE 1, 28–32
Original Paper
Jakub Czarny,
Justyna Staninska-Pięta,
Jolanta Powierska-Czarny,
Jacek Nowak,
Łukasz Wolko,
Agnieszka Piotrowska-Cyplik
Polish Journal of Microbiology , ISSUE 3, 345–352
short-communication
period.
In summary, the soybean growth period was found to have an important influence on the bacterial community in rhizosphere soil, and bacterial diversity was mainly affected by soil temperature and humidity. Changes in the abundances of Acidobacteria and Proteobacteria showed opposite trends. Our findings provided a theoretical basis for understanding the diversity and changes in the bacterial community in soybean rhizosphere soil.
LIN WANG,
ZHIYING LI,
RUIRUI LIU,
LULU LI,
WEIWEI WANG
Polish Journal of Microbiology , ISSUE 2, 281–284
Short Communication
The improvement of soy sauce fermentation is restricted by the insufficient information on bacterial community. In this study, bacterial communities in the koji and mash stage were compared based on next-generation sequencing technology. A total of 29 genera were identified in the koji stage, while 34 in the mash stage. After koji stage, 7 genera disappeared and 12 new genera appeared in the mash stage. The dominant bacteria were Kurthia, Weissella and Staphylococcus in the koji stage and
Hongbin Wang,
Quanzeng Wei,
Shuqi Gui,
Yongrui Feng,
Yong Zhang,
Yihan Liu,
Fuping Lu
Polish Journal of Microbiology , ISSUE 4, 537–541
original-paper
known from their culturable microorganisms. We know that traditional pure-culture methods can identify only a few microorganisms (Ward et al. 1990). Recently, the culture-independent molecular biological methods, such as Illumina HiSeq DNA sequencing has been used besides conventional isolation techniques for the analysis of microbial community structures (Watson et al. 2014). So far, there has been no report on the bacterial community in STE using both the Illumina HiSeq DNA sequencing and
RUILAN YANG,
JING LI,
LUYAO WEI-XIE,
LIN SHAO
Polish Journal of Microbiology , ISSUE 1, 99–108
Original Paper
Polycyclic aromatic hydrocarbon (PAHs) are common soil contaminants of concern due to their toxicity toward plants, animals and microorganisms. The use of indigenous or added microbes (bioaugmentation) is commonly used for bioremediation of PAHs. In this work, the biodegradation rates and changes in the bacterial community structure were evaluated. The enrichment culture was useful for unambiguously identifying members of the soil bacterial community associated with PAH degradation and yielded
FRANCINE AMARAL PIUBELI,
LIGIA GIBBI DOS SANTOS,
EMILIA NARANJO FERNÁNDEZ,
FLÁVIO HENRIQUE DA SILVA,
LUCIA REGINA DURRANT,
MATTHEW JAMES GROSSMAN
Polish Journal of Microbiology , ISSUE 3, 365–375
Research Article
Bacterial competition, defined as a local neighbour interaction, can lead to competitors’ coexistence, bacterial community self-organization or rearrangement of species dominance structure in ecological niches. Bacteria developed many mechanisms to communicate and compete. Kin discrimination mechanisms in bacterial populations allow species to distinguish a friend from a foe in bacterial environment. Type Vb and VI secretion systems (TVIbSS and TVISS) play a crucial role in this
Dawid Gmiter,
Grzegorz Czerwonka,
Wiesław Kaca
Postępy Mikrobiologii - Advancements of Microbiology , ISSUE 4, 360–373
Original Paper
showed the presence of members of the Proteobacteria, Spirochaetes, Firmicutes and Bacteroidetes in the analyzed sediments. However, Chloroflexi-related bacteria dominated the detected bacterial community. We also enriched a biphenyl-utilizing mixed culture using the W2 station sediment as an inoculum in chemically defined medium using biphenyl as a sole carbon and energy source. The enriched mixed culture consisted mainly of the Firmicute Paenibacillus spp. Sequences of genes encoding putative
Sarah Aldhafiri,
Huda Mahmoud,
Mohammed Al-Sarawi,
Wael A. Ismail
Polish Journal of Microbiology , ISSUE 1, 37–48