scholarly journals Interspecies modulation of bacterial development through iron competition and siderophore piracy

2012 ◽  
Vol 86 (3) ◽  
pp. 628-644 ◽  
Author(s):  
Matthew F. Traxler ◽  
Mohammad R. Seyedsayamdost ◽  
Jon Clardy ◽  
Roberto Kolter
Keyword(s):  
Bacterial Development ◽  
Iron Competition

scholarly journals Identification of Xylem Occlusions Occurring in CutClematis(ClematisL., fam.RanunculaceaeJuss.) Stems during Their Vase Life

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
Agata Jedrzejuk ◽  
Julia Rochala ◽  
Jacek Zakrzewski ◽  
Julita Rabiza-Świder
Keyword(s):  
Water Uptake ◽  
Plant Material ◽  
Microbial Growth ◽  
Vascular System ◽  
Vase Life ◽  
Cut Flower ◽  
Cut Flowers ◽  
Bacterial Development ◽  
Growth Formation ◽  
New Treatments

During the vase life of cut stems obstruction of xylem vessels occurs due to microbial growth, formation of tyloses, deposition of materials in the lumen of xylem vessels and the presence of air emboli in the vascular system. Such obstructions may restrict water uptake and its transport towards upwards thus lowering their ornamental value and longevity of cut flowers.Clematisis a very attractive plant material which may be used as cut flower in floral compositions. Nothing is known about the histochemical or cytological nature of xylem blockages occurring in cut stems of this plant. This study shows that inclematis, tyloses are the main source of occlusions, although bacteria and some amorphic substances may also appear inside the vessels. A preservative composed of 200 mg dm−38-HQC (8-hydroxyquinolin citrate) and 2% sucrose arrested bacterial development and the growth of tyloses. This information can be helpful in the development of new treatments to improve keeping qualities of cutclematisstems.

Effects of microscope illumination on bacterial development

1970 ◽  
Vol 74 (4) ◽  
pp. 292-300 ◽  
Author(s):  
Daisy A. Kuhn ◽  
Mortimer P. Starr
Keyword(s):  
Bacterial Development

Besoins en phosphore des bactéries métabolisant les hydrocarbures en mer

1976 ◽  
Vol 22 (9) ◽  
pp. 1364-1373 ◽  
Author(s):  
J. Le Petit ◽  
M.-H. N'Guyen
Keyword(s):  
Ionic Strength ◽  
Bacterial Growth ◽  
Bacterial Development ◽  
Biological Purification ◽  
Upper Limits ◽  
The Mean ◽  
Stimulation Of

The artificial stimulation of biological purification of sea-pollutant hydrocarbons requires phosphorus supply. The concentrations, corresponding to the optimal bacterial growth, depend, in particular, on ionic strength. They range between 2 and 8 × 10−4 M for waters in which the salinity is close to the mean salinity of an oceanic environment and between 1.5 and 3 × 10−3 M when these waters receive a significant supply of freshwater or when salinity is naturally weak. Inhibition of bacterial development has been observed either with a microflora, or with pure strains for concentrations higher than the upper limits of concentrations so defined.

Redox-Based Regulation of Bacterial Development and Behavior

2017 ◽  
Vol 86 (1) ◽  
pp. 777-797 ◽  
Author(s):  
Abigail J. Sporer ◽  
Lisa J. Kahl ◽  
Alexa Price-Whelan ◽  
Lars E.P. Dietrich
Keyword(s):  
Bacterial Development ◽  
And Behavior
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