Xylem fibers are specialized cells found in the vascular tissue of plants. They play a crucial role in providing structural support and facilitating the transport of water and nutrients. These fibers are typically elongated and have thick cell walls, which help them withstand the pressure of water movement within the plant. In addition to their supportive function, xylem fibers contribute to the overall strength of plant stems and roots. They are an essential component of the xylem, the tissue responsible for transporting water from the roots to the leaves. This transport system is vital for plant growth and survival.