Sessile growth

M.F. de Romero, S. Urdaneta, M. Barrientos, G. Romero. Correlation between Desulfovibrio sessile growth and CX3P, hydrogen permeation, corrosion products and morphological attack on iron. Paper No. 04576, Corrosion 2004, NACE International, Houston, TX, 2004. 

Macfarlane S, McBain AJ, Macfarlane GT. Consequences of biofilm and sessile growth in the large intestine. Adv Dent Res. 1997 11 59-68. 

As for the field monitoring of biofilms, there is a need for a rapid method of quantification of biofilm presence in the system (more reproducible than ATP measurements). Plate counts and other traditional methods that are still used to measure microbiological activity in industrial systems are slow, labor intensive, and often not representative of sessile growth. 

Model of biofilm growth. Although some people use the paper machine as a fouling monitor for sessile growth, it is not recommended ... 

Figure 5.4 Relationship between nutrient level and bacterial attachment, a A nutrient-poor environment where the nutrients can be reached on the surface, thus promoting sessile growth. High corrosion rates can be expected, b A nutrient-rich enviromnent where the nutrients can be reached within the bulk solution, thus promoting planktoitic growth. Lower corrosion rates can be expected...

Microbiological growth inc. planktonic sessile bacteria. Andformation of biofilms, slimes biomass... 

Insects are so successful because of their mobility, high reproductive potential, ability to exploit plants as a food resource, and to occupy so many ecological niches. Plants are essentially sessile and can be seen to produce flowers, nector, pollen, and a variety of chemical attractants to induce insect cooperation in cross-pollination. However, in order to reduce the efficiency of insect predation upon them, plants also produce a host of structural, mechanical, and chemical defensive artifices. The most visible chemical defenses are poisons, but certain chemicals, not intrinsically toxic, are targeted to disrupt specific control systems in insects that regulate discrete aspects of insect physiology, biochemistry, and behavior. Hormones and pheromones are unique regulators of insect growth, development, reproduction, diapause, and behavior. Plant secondary chemicals focused on the disruption of insect endocrine and pheromone mediated processes can be visualized as important components of plant defensive mechanisms. 

Another approach to function ascribes anti-feedant effects to vanadium65. Aside from weather, adult tunicates, which are sessile (stationary) animals, are primarily vulnerable to two types of ecological threats. They may succumb to predatory crustaceans and fish, or they may be fouled i.e., covered over by growths of smaller organisms such as smaller tunicates, or algae. How do immobile tunicates survive these pressures Is it possible that they use a chemical defense to thwart their enemies If so, is vanadium their main line of defense ... 

Figure 4. Conglomerate of Coespeletia timotensis in various growth stages in the superparamo Piedras Blancas of the Venezuelan Andean range at 4200 m asl, showing the protective cylindrical vest of sessile leaves around the stem. These comprise 83% of total biomass against only 2 - 2.5% of live leaves. At center a plant has been partially attacked by horses showing the inner core around the stem. Living leaves and active reproductive organs occupy the crown only. (Photo by author 2003).

An inflorescence is that part of the plant that bears flowers (and fruits), and dies completely afterwards, that iss no subsequent vegetative growth occurs either from the terminal or from the axillary buds. If further growth does occur we have a pseudo-lnfloreacence (see also sympodial growth, 32.2), but note that soma inflorescences, especially sessile ones (see cauliflorous, 42.4), may flower several to many times. 

Bakker, M.R., Kerisit, R., Verbist, K., Nys, C., 1999. Effects of liming on rhizosphere chemistry and growth of fine roots and of shoots of sessile oak (Quercuspetraed). Plant Soil 217, 243-255. 

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