Entrapment and lysis of the cyanobacterium Phormidium luridum by aqueous colonies of Myxococcus xanthus PCO2

Burnham, Jeffrey C.; Collart, Susan A.; Highison, Barbara

doi:10.1007/bf00414699

Cited by 66 publications

(52 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…SS98-5 against the diatom Ch. ceratosporum (Furusawa et al, 2003) or Myxococcus xanthus PCO2 against the cyanobacterium Phormidium luridum (Burnham et al, 1981). Aureispira QB1 also showed predation on commercial E. coli TOP10 (Fig.…”

Section: Resultsmentioning

confidence: 96%

“…Microbes such as Cytophaga sp. (Imai et al, 1993;Rashidan & Bird, 2001), Myxobacteria (Burnham et al, 1981), Ensifer (Casida, 1982), Herpetosiphon (Quinn & Skerman, 1980), Vampirococcus (Guerrero et al, 1986) and Vampirovibrio (Esteve & Gaju, 1999) produce antagonistic chemicals or enzymes to kill prey. In the case of these facultative predators, the attacking cell does not penetrate its prey but remains outside the prey's cell wall.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Calcium is required for ixotrophy of Aureispira sp. CCB-QB1

2015

View full text Add to dashboard Cite

Ixotrophy is a process that enables certain microbes to prey on other cells. The ability of cells to aggregate or adhere is thought to be a significant initial step in ixotrophy. The gliding, multicellular filamentous bacterium Aureispira sp. CCB-QB1 belongs to the family Saprospiraceae and preys on bacteria such as Vibrio sp. in seawater. Adhesion and cell aggregation were coincident with preying and were hypothesized to play an important role in the ixotrophy in this bacterium. To test this hypothesis, experiments to elucidate the mechanisms of aggregation or adhesion in this bacterium were performed. The ability of Aureispira QB1 to adhere and aggregate to prey bacterium, Vibrio sp., required divalent cations, especially calcium ions. In the presence of calcium, Aureispira QB1 cells captured 99 % of Vibrio sp. cells after 60 min of incubation. Toluidine blue O, which binds acidic polysaccharides, bound to Aureispira QB1 and inhibited adhesion of Aureispira QB1. These results suggest that acidic polysaccharides are needed for aggregation or adhesion of Aureispira and that calcium ions play a significant role in these phenomena.

show abstract

Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Calcium is required for ixotrophy of Aureispira sp. CCB-QB1

2015

View full text Add to dashboard Cite

show abstract

“…This implied that there were more prey cells than predator cells though 87% of prey cells were lysed in a shorter time. This trend may be the result of other factors involved such as the daily agitation that may have resulted in rapid cyanobacteria lysis, as was the case with Myxococcus xanthus PCO2 lysing Phormidium luridum (Burnham et al, 1981). The researchers observed that the rapid agitation of liquid samples caused a complete lysis of 10 7 cells per m P. luridum in 48 h. The two bacterial isolates have a lytic effect on the Microcystis cells.…”

Section: Effect Of Isolate B16 On Microcystis Cellsmentioning

confidence: 98%

“…Microbial agents (bacteria, fungi, virus and protozoa) have been isolated from harmful algal blooms (Shilo, 1970;Burnham et al, 1981;Daft et al, 1985;Ashton and Robarts, 1987;Bird and Rashidan, 2001;Nakamura et al, 2003a;Choi et al, 2005). This is not an exhaustive list but the studies of Sigee et al (1999) should be consulted for further information.…”

Section: Introductionmentioning

confidence: 99%

The isolation and identification of predatory bacteria from a Microcystis algal bloom

Gumbo¹,

Ross²,

Cloete³

2010

Afr. J. Biotechnol.

View full text Add to dashboard Cite

Water samples were collected from a hypertrophic lake, Hartbeespoort dam, where lytic or predatory bacteria were isolated. The water samples were spread on BG 11 agar plates where upon incubation, plaques were observed on Microcystis lawns. Two isolates were further subjected to screening to evaluate their lytic activities on Microcystis cells and identification. Isolates B2 and B16 had a lytic effect on the Microcystis cells with isolate B16 having a greater effect than isolate B2. Isolate B2 was identified as Pseudomonas stutzeri with 99.9% certainty and B16 as Bacillus mycoides with 99.7% certainty using the API system.

show abstract

“…Indeed, multicellular forms of prokaryotes such as colonies or biofilms display multiple characteristics of differentiated multicellular organisms. Among these characteristics are quorum sensing, 28 collective digesting, 30 collective prey hunting 31 and resistance to antibiotics 32 ( Table 2). From this point of view, autophagy should appear as another characteristic of multicellular form of prokaryote.…”

Section: Prokaryotes As Multicellular Organismsmentioning

confidence: 99%