Pollen tube through wind, water or pollinators. The last step before fertilization is the growth of the pollen tube to transfer non-motile sperm to the protected egg. Pollen tubes are unique to plants and their structure had evolved over plant history. The pollen tube formation is complex and the mechanism is not fully understood, but is of great interest to scientists. Pollen is produced by the stamen, the male reproductive organ of the flower. Each pollen grain contains a vegetative cell, and a generative cell that divides to form two sperm cells. The pollen is delivered by the opening of anthers for
Distillers grains that increases efficiency and lowers the risk of subacute acidosis in beef cattle. Recently, studies indicate that DDGS as a food source for "human consumption" may have some benefit in reducing heart disease risk. There are two common types of distillers grains. In beer or whiskey production, grains, such as corn, are put though a mashing process, where grain is ground and added to hot water. The starch in the grains undergoes saccharification by enzymes, turning the starch into sugars that are released into the water. The water is removed from the grain, and becomes wort for brewing. The remaining