the bacteria bacillus thuringiensis produce protein crystals that are toxic to yhe digestive system of insects.How can these bacteria be used to control insects in crops?
Apply the bacteria to growing plants. Bio technologists have devised a method to utilize Bacillus thuringens to prevent insects on crops. They insert the gene responsible for the protein crystals into the genome of the crop plants and culture the plants. The resultant plants produce the protein crystals by themselves because they contain the gene to do so. An example of the above method is Bt cotton. It is a high grade cotton plant which is naturally resistant to pests as it has been genetically engineered.
There is evidence to suggest the spores fromed by bacteria such as Bacillus are much longer lived than previously thought. Strains of Bacillus held in the laboratories since well before 1900 can be germinated in minutes in a modern lab to give rise to fully functional Bacillus. In theory there is no upper time limit to how long these spores remain viable for.
Amorphous urates are normal in urine. There are several types of amorphous crystals, each composed of different elements and forming in specific urine conditions. Amorphous crystals are misidentified as bacteria.
Raphides are needle-shaped crystals, usually of calcium oxalate, found in more than 200 families of plants. The crystals discourage animals from eating the plant because they irritating the animalsâ?? tissue.
-Use magnetite to orient to N/S poles -Have been around for a few Ga -Magnetite-like crystals found in ALH84001
Bacteria. but i do not remember which kind of bacteria.
The contaminants are concentrated in the void spaces in the ice crystals. Bacteria, floaties, everything. They are really not much safer than the water they are made from. (Some bacteria are killed by freezing, but probably not enough.)
Yes, freezing can kill some yogurt cultures, which are beneficial bacteria that help ferment the milk into yogurt. When yogurt is frozen, the ice crystals that form can damage the cell walls of the bacteria, potentially reducing their effectiveness.
•Evidence for life -Presence of small organic compounds called PAHs -Small bacteria-shaped morphologies -Magnetite crystals Mars rock in question
Yes, ice-minus bacteria is a transgenic microorganism because it has been genetically modified to lack the gene responsible for the formation of ice crystals. This modification is done to prevent frost formation on plants.
Raphide crystals are needle-like crystals found in certain plants, particularly in the cells of specialized tissues called idioblasts. These crystals can cause irritation or a burning sensation when they come into contact with the skin or mucous membranes, acting as a defense mechanism against herbivores.
Once, refreezing not only destroys the texture of the bird to the re-expanding of ice crystals but it can also promote bacteria growth.l
Ghost Crystals are crystals of crosslinked polyacrylamide.