When we break the lotus root, we can observe countless long white threads connecting the broken root. Why is there such a phenomenon of broken roots? This is to observe the structure of the lotus root. Because plants need tissues to transport water and nutrients in order to grow, these tissues are called ducts and tubules. They are in the plant body in all directions, in the leaves, stems, flowers, fruits and other organs like blood vessels in the animal body as unimpeded. Plant conduit wall in a certain part of the special thickening, into a variety of texture, some ring, some trapezoidal, some are net-shaped. The thickening part of the root's conduit wall is continuous into a spiral, specially called spiral conduit. When the root is broken, the thickened spiral part of the inner wall of the conduit is detached and becomes spiral filaments with a diameter of only 3-5 microns. These filaments are very much like the elongated spring, in the elastic limit will not be pulled off, generally can be stretched to about 10 centimeters. Lotus root filaments are not only found in the lotus root, but also in the lotus stalk and lotus seedling, but they are much more slender. If you pick a lotus stalk, as far as possible, it folded into a section of a section, lifted up like a long string of small green "lanterns" connected to these small green "lanterns", is this filament. This filament appears to be one, such as under the microscope to observe, it will be found in fact is composed of 3 to 8 finer filaments, like a cotton yarn is composed of countless cotton fibers.