Hormone signaling is involved in all biological system. Hormones in general control the physical and emotional responses of an organism. A specific example of a hormone is auxin. Auxin is a plant hormone that plays an inportant role in several plant activities, such as: phototropism, gravitopism, apical dominance, fruit development, abscission, and root initiation. Auxin travels in a specific direction inside a plant, it is taken up by a particular cell at one end and …showed first 75 words of 1509 total…

…showed last 75 words of 1509 total…of transgenic plants of Chinese cabbage with exogenous auxin genes," National Laboratory of Plant Molecular Genetics, Shanghai. URL http://www.cell-research.com/20002/202-HYK1.html. Valid on 5/19/03 Kimball, J., 2002, Auxin, URL http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/A/Auxin.html. Valid on 05/19/03. Nick, P., 1999, Signals, Motors, Morphogenesis-the Cytoskeleton in Plant Development." Plant Biology Vol. 1 Stuttgart, p. 169-176 Rarwanato, 2002, Auxin Signaling. Albany, California. URL http://www.ueb.cas.cz/eng/rarwnato2002/sakis.htm Valid on 05/19/03