the purpose of the roots in a plant is to anchor it in the ground, absorb water and nutrients, and store food. If a disease harms the roots, the plant's ability to absorb water and nutrients will be compromised, leading to wilting, stunted growth, and ultimately, it may not survive.

In different words

, the roots of a plant serve multiple important functions. They provide stability to the plant by firmly anchoring it in the ground, allowing it to withstand environmental forces such as wind or rain. Additionally, roots act as the main source for absorbing water and nutrients from the soil, which are essential for the plant's growth and development. They also play a crucial role in storing food reserves that can be utilized during times of stress or unfavorable conditions. However, if a disease or damage affects the roots, the plant's ability to absorb these vital resources will be impaired. This can result in symptoms such as wilting, where the plant's leaves and stems lose their turgidity and become droopy. Additionally, the plant may experience stunted growth, as it is not receiving the necessary nutrients for development. If the root disease goes untreated or becomes severe, the plant's overall health may decline to a point where it is unable to survive.

In one sentence

, the roots of a plant serve to anchor it in the ground, absorb water and nutrients, and store food, so if the roots are affected by disease, the plant's ability to thrive and ultimately survive may be compromised.