In addition, another type of orange oil is extracted from a different species of orange tree. Orange oil is a popular essential oil that is used in aromatherapy to treat various health problems, so understanding the differences between the orange oils is useful to know. Bitter Orange Oil Bitter orange (Citrus aurantium var. amara) oil is extracted from the the fruit of the bitter orange tree by cold expression.
Cloning around. Some plants have cells that are able to convert from a structured, or differentiated, state to a totipotent state. One example is the ZZ plant (Zamioculcas zamiifolia). This plant is so cellularly precocious that a mere piece of leaf or stem can be used to grow a new plant.
Totipotent Stem Cells. These are the most versatile of the stem cell types. When a sperm cell and an egg cell unite, they form a one-celled fertilized egg. This cell is totipotent, meaning it has the potential to give rise to any and all human cells, such as brain, liver, blood or heart cells.It can even give rise to an entire functional organism. The first few cell divisions in embryonic development produce more totipotent cells.his cell is totipotent, meaning it has the potential to give rise to any and all human cells, such as brain, liver, blood or heart cells. It can even give rise to an entire functional organism. The first few cell divisions in embryonic development produce more totipotent cells.